CN119020881A - Regenerated chiffon fabric and preparation process thereof - Google Patents
Regenerated chiffon fabric and preparation process thereof Download PDFInfo
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- CN119020881A CN119020881A CN202411028854.0A CN202411028854A CN119020881A CN 119020881 A CN119020881 A CN 119020881A CN 202411028854 A CN202411028854 A CN 202411028854A CN 119020881 A CN119020881 A CN 119020881A
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- regenerated
- chiffon fabric
- crepe
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- 239000004744 fabric Substances 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920000728 polyester Polymers 0.000 claims abstract description 159
- 239000002699 waste material Substances 0.000 claims abstract description 84
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 239000000243 solution Substances 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 28
- 239000004480 active ingredient Substances 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000000605 extraction Methods 0.000 claims abstract description 24
- 239000011259 mixed solution Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000178 monomer Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- 230000003197 catalytic effect Effects 0.000 claims abstract description 14
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims abstract description 14
- 229940006186 sodium polystyrene sulfonate Drugs 0.000 claims abstract description 14
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 13
- 238000009987 spinning Methods 0.000 claims abstract description 13
- 108090000790 Enzymes Proteins 0.000 claims abstract description 11
- 102000004190 Enzymes Human genes 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 36
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 28
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 22
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 20
- 108010005400 cutinase Proteins 0.000 claims description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- CWVRJTMFETXNAD-FWCWNIRPSA-N 3-O-Caffeoylquinic acid Natural products O[C@H]1[C@@H](O)C[C@@](O)(C(O)=O)C[C@H]1OC(=O)\C=C\C1=CC=C(O)C(O)=C1 CWVRJTMFETXNAD-FWCWNIRPSA-N 0.000 claims description 12
- PZIRUHCJZBGLDY-UHFFFAOYSA-N Caffeoylquinic acid Natural products CC(CCC(=O)C(C)C1C(=O)CC2C3CC(O)C4CC(O)CCC4(C)C3CCC12C)C(=O)O PZIRUHCJZBGLDY-UHFFFAOYSA-N 0.000 claims description 12
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 claims description 12
- 239000005770 Eugenol Substances 0.000 claims description 12
- CWVRJTMFETXNAD-KLZCAUPSSA-N Neochlorogenin-saeure Natural products O[C@H]1C[C@@](O)(C[C@@H](OC(=O)C=Cc2ccc(O)c(O)c2)[C@@H]1O)C(=O)O CWVRJTMFETXNAD-KLZCAUPSSA-N 0.000 claims description 12
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 claims description 12
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 claims description 12
- 235000005487 catechin Nutrition 0.000 claims description 12
- CWVRJTMFETXNAD-JUHZACGLSA-N chlorogenic acid Chemical compound O[C@@H]1[C@H](O)C[C@@](O)(C(O)=O)C[C@H]1OC(=O)\C=C\C1=CC=C(O)C(O)=C1 CWVRJTMFETXNAD-JUHZACGLSA-N 0.000 claims description 12
- 229940074393 chlorogenic acid Drugs 0.000 claims description 12
- FFQSDFBBSXGVKF-KHSQJDLVSA-N chlorogenic acid Natural products O[C@@H]1C[C@](O)(C[C@@H](CC(=O)C=Cc2ccc(O)c(O)c2)[C@@H]1O)C(=O)O FFQSDFBBSXGVKF-KHSQJDLVSA-N 0.000 claims description 12
- 235000001368 chlorogenic acid Nutrition 0.000 claims description 12
- BMRSEYFENKXDIS-KLZCAUPSSA-N cis-3-O-p-coumaroylquinic acid Natural products O[C@H]1C[C@@](O)(C[C@@H](OC(=O)C=Cc2ccc(O)cc2)[C@@H]1O)C(=O)O BMRSEYFENKXDIS-KLZCAUPSSA-N 0.000 claims description 12
- 229960002217 eugenol Drugs 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- BSDOQSMQCZQLDV-UHFFFAOYSA-N butan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] BSDOQSMQCZQLDV-UHFFFAOYSA-N 0.000 claims description 5
- 108010051152 Carboxylesterase Proteins 0.000 claims description 4
- 102000013392 Carboxylesterase Human genes 0.000 claims description 4
- 150000001765 catechin Chemical class 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 238000002525 ultrasonication Methods 0.000 claims 1
- 238000001132 ultrasonic dispersion Methods 0.000 abstract description 13
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 abstract description 10
- 229910021426 porous silicon Inorganic materials 0.000 abstract description 10
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 238000003815 supercritical carbon dioxide extraction Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 238000002074 melt spinning Methods 0.000 description 20
- 239000011148 porous material Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 13
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 description 11
- 229950001002 cianidanol Drugs 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 10
- 238000005469 granulation Methods 0.000 description 10
- 230000003179 granulation Effects 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 238000007873 sieving Methods 0.000 description 10
- 239000004753 textile Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- SNOJPWLNAMAYSX-UHFFFAOYSA-N 2-methylpropan-1-ol;titanium Chemical compound [Ti].CC(C)CO.CC(C)CO.CC(C)CO.CC(C)CO SNOJPWLNAMAYSX-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The application relates to the technical field of regenerated fabrics, and particularly discloses a regenerated chiffon fabric and a preparation process thereof, wherein the preparation process of the regenerated chiffon fabric comprises the steps of carrying out extraction treatment on waste polyester powder, and then adding an enzyme preparation into an extract for catalytic depolymerization; carrying out polymerization reaction on the depolymerized substance and the modified monomer under the condition of a catalyst to obtain a regenerated polyester material; stirring the active ingredients, sodium polystyrene sulfonate and sodium sulfamate with ethanol water solution to obtain a mixed solution, adding porous silicon dioxide into the mixed solution, performing ultrasonic dispersion, centrifuging and drying to obtain modified filler; uniformly mixing the regenerated polyester material with the modified filler, and spinning to obtain modified regenerated polyester filaments; the modified regenerated polyester filaments are used as crepe warp raw materials and crepe weft raw materials to prepare regenerated chiffon fabric; the application adopts supercritical carbon dioxide extraction and enzyme catalysis depolymerization to effectively decompose and purify the waste polyester bottle flakes, thereby improving the purity, molecular weight and uniformity of the material and further enhancing the comprehensive mechanical properties of the material such as wear resistance, wearing resistance and the like.
Description
Technical Field
The application relates to the technical field of regenerated fabrics, in particular to a regenerated chiffon fabric and a preparation process thereof.
Background
Chiffon fabric is widely popular with consumers due to the characteristics of light weight, ventilation, softness, elegance, comfort and the like, and is widely applied to various clothing and home textiles. The traditional chiffon fabric is mainly made of chemical fibers such as polyester fibers extracted from petroleum, and a large amount of carbon dioxide and other harmful gases are generated in the production process, so that energy is consumed, and the environment is polluted. The traditional chiffon fabric is soft and comfortable, but has relatively poor moisture absorption performance and perspiration performance, is not comfortable to wear, is easy to fade, pill and other quality problems after being washed for many times, and has poor durability.
With the rise of environmental awareness and the rapid development of socioeconomic performance, regenerated textiles have become more and more interesting. Meanwhile, the requirements of people on the quality and the functionality of textiles are also higher and higher, and the requirements of novel materials with environmental protection, health, safety and multiple functions in the textile market are growing. The existing regenerated chiffon fabric is generally made of renewable or biodegradable raw materials, such as recycled materials of waste polyester plastic bottles and the like, so that the problem of waste treatment is solved, and the dependence on petroleum resources is reduced.
The existing regenerated chiffon fabric, such as RPET chiffon fabric (RPET fabric), is a novel environment-friendly regenerated fabric, and yarns of the regenerated chiffon fabric are extracted from waste mineral water bottles and cola bottles, and although the environment-friendly performance is improved, the regenerated chiffon fabric still has some defects in use performance, particularly the strength and wearing resistance of the fabric are poor, and the hygroscopicity is general, so that the regenerated chiffon fabric has insufficient wearing comfort. Therefore, how to improve the comprehensive performance of the regenerated chiffon fabric so as to meet the market demand for multifunctional textiles is a current challenge. Based on the above statement, the application provides a regenerated chiffon fabric and a preparation process thereof.
Disclosure of Invention
The application provides a regenerated chiffon fabric and a preparation process thereof, and aims to solve the problems that the existing regenerated chiffon fabric is poor in strength and wearing resistance, general in hygroscopicity, insufficient in wearing comfort and the like.
In a first aspect, the application provides a preparation process of regenerated chiffon fabric, which adopts the following technical scheme:
the preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
s11, crushing, cleaning and drying the collected waste polyester bottle flakes to obtain waste polyester powder;
S12, extracting the waste polyester powder by taking supercritical carbon dioxide as a solvent, centrifuging to obtain an extract, dispersing the extract in an ethanol solution, and adding an enzyme preparation for catalytic depolymerization to obtain a depolymerized product;
S13, adding modified monomers into the depolymerized product to carry out polymerization reaction under the condition of a catalyst to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, uniformly stirring the active ingredients, sodium polystyrene sulfonate, sodium sulfamate and ethanol aqueous solution to obtain a mixed solution, adding porous silicon dioxide into the mixed solution, performing ultrasonic dispersion, centrifuging, and drying to obtain a modified filler;
s22, uniformly mixing the regenerated polyester material with the modified filler, and preparing modified regenerated polyester filaments by a spinning method;
S3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as crepe raw materials and crepe raw materials, and are interwoven into plain weave and then subjected to relaxation heat treatment to prepare the regenerated chiffon fabric.
Preferably, the extraction pressure in the step S12 is 18-30MPa, the temperature is 30-60 ℃, the time is 3-5h, and the flow rate of CO 2 is 1-5mL/min/g.
Preferably, the enzyme preparation in step S12 comprises cutinase and/or carboxylesterase; the addition amount of the enzyme preparation is 1-10% of the mass of the waste polyester powder.
Preferably, the catalytic depolymerization conditions are: the temperature is 35-45 ℃, the pH value is 7-8, and the time is 4-7h.
Preferably, the modified monomer in the step S13 comprises vinylsulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2-1.8.
Preferably, the catalyst in the step S13 is zirconium tetra-n-butoxide and/or titanium tetra-isobutoxide.
Preferably, the active ingredients in the step S21 comprise catechin, chlorogenic acid and eugenol in a mass ratio of 4-6:1:1.
Preferably, in the step S21, the mass ratio of the active ingredients to the sodium polystyrene sulfonate to the sodium sulfamate to the ethanol aqueous solution is 5-7:1:1:20-24; the addition amount of the porous silicon dioxide is 3-5 times of the mass of the active ingredient.
Preferably, in the step S3, the twist of the crepe is controlled to 320-420 twists/m, the twist of the crepe is controlled to 500-600 twists/m, and the twist direction of the crepe is opposite to that of the crepe.
Preferably, the preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-40 mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 15-25wt% at the temperature of 70-90 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90-110 ℃ until the weight of the waste polyester bottle flakes is constant to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10-15:1, extracting the waste polyester powder, controlling the extraction pressure to be 18-30MPa, the temperature to be 30-60 ℃ and the time to be 3-5h, and centrifuging at 7000rpm for 10min after the extraction is finished, wherein the flow rate of CO 2 is 1-5mL/min/g, so as to obtain an extract; adding an ethanol solution with the mass ratio of between 32 and 42 percent into the extract according to the mass ratio of 1:5 to 7, stirring and dispersing for 20 minutes at the rotating speed of 350r/min, adding an enzyme preparation with the mass ratio of between 1 and 10 percent of the waste polyester powder, controlling the temperature to be between 35 and 45 ℃ and the pH value to be between 7 and 8, and carrying out catalytic depolymerization for 4 to 7 hours to obtain a depolymerized product;
S13, adding a modified monomer and a catalyst into the depolymerized polymer according to the mass ratio of 30-35:6-8:0.05-0.1, stirring for 30min at the rotating speed of 350r/min until the depolymerized polymer and the modified monomer are uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02-0.03MPa, and performing polymerization reaction at the temperature of 250-270 ℃ for 2-5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
s21, adding 38wt% ethanol aqueous solution into the active ingredients, sodium polystyrene sulfonate and sodium sulfamate according to the mass ratio of 5-7:1:1:20-24, stirring at the rotating speed of 350r/min for 30min until the mixture is uniform, adding porous silicon dioxide (the adding amount is 3-5 times of the mass of the active ingredients) into the mixture, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, centrifuging at 8000rpm for 10min after ultrasonic dispersion, and drying at 100 ℃ until the weight is constant, thus obtaining modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2-0.4, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required regenerated polyester filament containing modification; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
S3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320-420 twists/meter, the twist degree of the crepe wefts is controlled to be 500-600 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then relaxation heat treatment is carried out for 20-30min at the temperature of 90-110 ℃ to prepare the regenerated chiffon fabric.
In a second aspect, the application provides a regenerated chiffon fabric, which adopts the following technical scheme:
The regenerated chiffon fabric is produced by the preparation process of the regenerated chiffon fabric.
In summary, the application has the following beneficial effects:
1. The application adopts supercritical carbon dioxide extraction and enzyme catalysis depolymerization to effectively decompose and purify the waste polyester bottle flakes, remove impurities and low molecular weight substances, improve the purity, molecular weight and uniformity of the material, and further enhance the comprehensive mechanical properties of wear resistance, wear resistance and the like of the material.
2. The active ingredients of the application are compounded by catechin, chlorogenic acid and eugenol, after the active ingredients, sodium polystyrene sulfonate and sodium sulfamate are mixed with ethanol water solution for pretreatment, porous silica is added for ultrasonic dispersion to prepare modified filler, the obtained modified filler is used for preparing regenerated chiffon fabric, and the dispersibility and stability are good, so that good moisture absorption channels can be provided for the prepared chiffon fabric, the moisture absorption performance is enhanced, and meanwhile, the biological activity functions of antibiosis, antioxidation, ultraviolet resistance and the like of the chiffon fabric can be obviously enhanced; the regenerated chiffon fabric is soft and comfortable.
3. The application can effectively adjust the fiber structure of the chiffon fabric by controlling the twist degree, the twist direction and the thermal relaxation treatment condition of the crepe warp and the crepe weft, reduce the internal stress and ensure that the fabric has good crease resistance after weaving.
Detailed Description
In order that the embodiments of the present application may be more readily understood, the present application will be described in detail with reference to specific preparations, examples and comparative examples, which are given for illustrative purposes only and are not limited in scope to the present application.
The procedures, conditions, reagents, experimental methods, etc. for carrying out the present application are common knowledge and common knowledge in the art, except for those specifically mentioned below, and the present application is not particularly limited.
Examples 1-3 provide a process for preparing regenerated chiffon fabric.
Example 1
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring for 30min at a rotating speed of 350r/min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
s21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 5:1:1:20, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g, a pore volume of 20.4m/g and an addition amount of 3 times the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, performing ultrasonic dispersion for 30min, centrifuging for 10min at 8000rpm, and drying at 100 ℃ until the weight is constant to obtain a modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Example 2
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
s11, crushing the collected waste polyester bottle flakes, sieving with a 30-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a 20wt% sodium hydroxide solution at 80 ℃, and drying the crushed waste polyester bottle flakes at 100 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 12:1, extracting the waste polyester powder, controlling the extraction pressure to be 24MPa, the temperature to be 45 ℃, the time to be 4h, the flow rate of CO 2 to be 3mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 37wt% ethanol solution into the extract according to the mass ratio of 1:6, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 5% carboxylesterase (EC 3.1.1.1) of waste polyester powder, controlling the temperature at 40 ℃, controlling the pH value at 7.5, and carrying out catalytic depolymerization for 5.5h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol with the mass ratio of 1:1.5) into the depolymerized product according to the mass ratio of 32:7:0.08, stirring for 30min at the speed of 350r/min until the depolymerized product and the modified monomers are uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.0255MPa, carrying out polymerization reaction at 260 ℃ for 3.5h, and obtaining the regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 5:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 6:1:1:22, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g, a pore volume of 20.4m/g and an addition amount of 4 times the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, performing ultrasonic dispersion for 30min, centrifuging for 10min at 8000rpm, and drying at 100 ℃ until the weight is constant to obtain a modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.3, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
S3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 370 twists/meter, the twist degree of the crepe wefts is controlled to be 550 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then relaxation heat treatment is carried out for 25min at the temperature of 100 ℃ to prepare the regenerated chiffon fabric.
Example 3
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 40-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 15wt% at 90 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 110 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 15:1, extracting the waste polyester powder, controlling the extraction pressure to be 30MPa, the temperature to be 60 ℃, the time to be 3h, the flow rate of CO 2 to be 5mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32-42wt% ethanol solution into the extract according to the mass ratio of 1:7, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 10% of enzyme preparation (cutinase (EC 3.1.1.74) and carboxylesterase (EC 3.1.1.1) according to the mass ratio of 1:1) into the waste polyester powder, controlling the temperature at 40 ℃, controlling the pH value at 8, and carrying out catalytic depolymerization for 4h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.8) and catalysts (zirconium tetra-n-butoxide and titanium tetra-iso-butoxide in a mass ratio of 1:1) into the depolymerized product according to a mass ratio of 35:8:0.1, stirring at a rotating speed of 350r/min for 30min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.03MPa, performing polymerization reaction at 270 ℃, and reacting for 2h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 6:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 7:1:1:24, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g, a pore volume of 20.4m/g and an addition amount of 3-5 times the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, performing ultrasonic dispersion for 30min, centrifuging for 10min at 8000rpm, and drying at 100 ℃ until the constant weight is obtained to obtain the modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.4, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
S3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 420 twists/meter, the twist degree of the crepe wefts is controlled to be 600 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 20min at the temperature of 110 ℃ to prepare the regenerated chiffon fabric.
In order to verify the comprehensive properties of the regenerated chiffon fabric produced in examples 1 to 3 of the present application, comparative examples 1 to 6 were set up.
Comparative example 1
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, adding 32wt% ethanol solution into waste polyester powder according to a mass ratio of 1:5, stirring and dispersing for 20min at a rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of the mass of the waste polyester powder, controlling the temperature to 35 ℃, controlling the pH value to 7, carrying out catalytic depolymerization for 7h to obtain a depolymerized product, carrying out extraction treatment on the depolymerized product by taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the depolymerized product to 10:1, controlling the extraction pressure to 18MPa, controlling the temperature to 30 ℃ for 5h, controlling the flow rate of CO 2 to 1mL/min/g, and centrifuging at 7000rpm to obtain an extract after the extraction is completed;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2) into the extract according to a mass ratio of 30:6:0.05, stirring the mixture for 30min at a rotating speed of 350r/min until the mixture is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
s21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 5:1:1:20, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g, a pore volume of 20.4m/g and an addition amount of 3 times the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, performing ultrasonic dispersion for 30min, centrifuging for 10min at 8000rpm, and drying at 100 ℃ until the weight is constant to obtain a modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Comparative example 2
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
s13, adding a modified monomer (vinylsulfonic acid) and a catalyst (tetra-n-butoxyzirconium) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring at a rotating speed of 350r/min for 30min until the depolymerized product and the catalyst are uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, performing polymerization reaction at 250 ℃, and reacting for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
s21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 5:1:1:20, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g, a pore volume of 20.4m/g and an addition amount of 3 times the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, performing ultrasonic dispersion for 30min, centrifuging for 10min at 8000rpm, and drying at 100 ℃ until the weight is constant to obtain a modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Comparative example 3
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
S13, adding a modified monomer (2-mercaptoethanol) and a catalyst (tetra-n-butoxyzirconium) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring at a rotating speed of 350r/min for 30min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1), sodium polystyrene sulfonate and sodium sulfamate into a 38wt% ethanol water solution according to a mass ratio of 5:2:20, stirring for 30min at a rotating speed of 350r/min until the mixture is uniform to obtain a mixed solution, adding porous silicon dioxide (with a particle size of 200nm, a pore diameter of 2-3nm and a specific area of 2400m/g and a pore volume of 20.4m/g, wherein the adding amount is 3 times of the mass of the active ingredients), controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, centrifuging for 10min at 8000rpm after ultrasonic dispersion, and drying at 100 ℃ until the weight is constant to obtain a modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Comparative example 4
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring for 30min at a rotating speed of 350r/min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding 38wt% ethanol water solution into active components (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1) and sodium polystyrene sulfonate, stirring at a rotating speed of 350r/min for 30min until the mixture is uniform to obtain a mixed solution, adding porous silica (with a particle size of 200nm, a pore diameter of 2-3nm, a specific area of 2400m/g and a pore volume of 20.4m/g, wherein the adding amount is 3 times of the mass of the active components) into the mixed solution, controlling the ultrasonic power to be 300W, performing ultrasonic dispersion for 30min, centrifuging at 8000rpm for 10min, and drying at 100 ℃ until the weight is constant to obtain modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Comparative example 5
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring for 30min at a rotating speed of 350r/min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding 38wt% ethanol water solution into active components (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1) and sodium sulfamate according to a mass ratio of 5:1:1:20, stirring at a rotating speed of 350r/min for 30min until the mixture is uniform to obtain a mixed solution, adding porous silica (with a particle size of 200nm, a pore diameter of 2-3nm, a specific area of 2400m/g and a pore volume of 20.4m/g, wherein the adding amount is 3 times of the mass of the active components) into the mixed solution, controlling the ultrasonic power to be 300W, performing ultrasonic dispersion for 30min, centrifuging at 8000rpm for 10min, and drying at 100 ℃ until the constant weight to obtain modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Comparative example 6
The preparation process of the regenerated chiffon fabric comprises the following preparation steps:
s1, preparing a regenerated polyester material:
S11, crushing the collected waste polyester bottle flakes, sieving with a 20-mesh sieve, cleaning the crushed waste polyester bottle flakes by using a sodium hydroxide solution with the concentration of 25wt% at the temperature of 70 ℃, and drying the crushed waste polyester bottle flakes at the temperature of 90 ℃ to constant weight to obtain waste polyester powder;
S12, taking supercritical carbon dioxide as a solvent, controlling the mass ratio of the solvent to the waste polyester powder to be 10:1, extracting the waste polyester powder, controlling the extraction pressure to be 18MPa, the temperature to be 30 ℃, the time to be 5h, the flow rate of CO 2 to be 1mL/min/g, and centrifuging at 7000rpm for 10min after the extraction is finished to obtain an extract; adding 32wt% ethanol solution into the extract according to the mass ratio of 1:5, stirring and dispersing for 20min at the rotating speed of 350r/min, adding 1% cutinase (EC 3.1.1.74) of waste polyester powder, controlling the temperature at 35 ℃ and the pH value at 7, and carrying out catalytic depolymerization for 7h to obtain a depolymerized product;
S13, adding modified monomers (vinyl sulfonic acid and 2-mercaptoethanol in a mass ratio of 1:1.2) into the depolymerized product according to a mass ratio of 30:6:0.05, stirring for 30min at a rotating speed of 350r/min until the depolymerized product is uniformly mixed, introducing nitrogen, controlling the reaction pressure to be 0.02MPa, and carrying out polymerization reaction at 250 ℃ for 5h to obtain a regenerated polyester material;
s2, preparing modified regenerated polyester filaments:
S21, adding 38wt% ethanol aqueous solution into active ingredients (catechin, chlorogenic acid and eugenol in a mass ratio of 4:1:1) according to a mass ratio of 5:20, stirring at a rotating speed of 350r/min for 30min until the mixture is uniform to obtain a mixed solution, adding porous silica (with a particle size of 200nm, a pore diameter of 2-3nm, a specific area of 2400m/g and a pore volume of 20.4m/g, wherein the adding amount is 3 times of the mass of the active ingredients) into the mixed solution, controlling the ultrasonic power to be 300W, controlling the ultrasonic frequency to be 28kHz, centrifuging at 8000rpm for 10min after ultrasonic dispersion, and drying at 100 ℃ until the weight is constant to obtain modified filler;
S22, uniformly mixing the regenerated polyester material and the modified filler according to the mass ratio of 1:0.2, and then carrying out melt extrusion granulation by a double-screw extruder, and carrying out melt spinning to obtain the required modified regenerated polyester-containing filament; wherein the temperature of the first zone of the twin-screw extruder is 260 ℃, the temperature of the second zone is 274 ℃, the temperature of the third zone is 284 ℃, the temperature of the fourth zone is 285 ℃, the temperature of the fifth zone is 286 ℃, the melt spinning temperature is 280-285 ℃, the spinning speed is 1100m/min, the drafting ratio is 3.7 times, and the drafting temperature is 80 ℃;
s3, preparing regenerated chiffon fabric: the modified regenerated polyester filaments are used as raw materials of crepe warps and crepe wefts, the twist degree of the crepe warps is controlled to be 320 twists/meter, the twist degree of the crepe wefts is controlled to be 500 twists/meter, the twist directions of the crepe warps and the crepe wefts are opposite, the crepe warps and the crepe wefts are interweaved into plain weave, and then the plain weave is subjected to relaxation heat treatment for 30min at the temperature of 90 ℃ to prepare the regenerated chiffon fabric.
Performance testing
The regenerated chiffon fabrics produced in examples 1 to 3 and comparative examples 1 to 6 of the present application were tested for their comprehensive properties, respectively, as follows:
Breaking strength: the detection is carried out by referring to GB/T3923.1-1997 'determination of breaking strength and breaking elongation of fabrics-strip sample method';
Abrasion resistance: determination of abrasion resistance of textile Martindale fabrics, part 2, see GB/T21196.2-2007: detecting in the test sample breakage measurement, setting the friction load to be 1000g, and counting the rotation speed when the friction is broken to the test sample;
Hygroscopicity: reference GB/T12704.1-2009 part 1 of the textile fabric moisture permeability test method: detecting a wet absorbing method;
Air permeability: the detection is carried out by referring to GB/T5453-1997 determination of air permeability of textile fabrics;
antibacterial rate: evaluation of antimicrobial Properties of textiles section 2 with reference to GB/T20944.2-2007: the antibacterial performance of the bacteria is detected before washing and after 100 times of washing in an absorption method, and the test strain is escherichia coli; the water washing method refers to GB/T8629-2001 'household washing and drying procedure adopted in textile test', the B-type stirring type washing machine and the washing procedure 8B are selected,
The test results are shown in Table 1 below:
TABLE 1 breaking strength and abrasion resistance test results
As can be seen from the data shown in table 1 above: the regenerated chiffon fabric produced in examples 1-3 of the present application has much better overall properties than comparative examples 1-6.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119221282A (en) * | 2024-12-02 | 2024-12-31 | 安徽亿盈特纤新材料有限公司 | A method for recycling waste polyester textiles to prepare polyester fabrics |
| CN119221282B (en) * | 2024-12-02 | 2025-03-04 | 安徽亿盈特纤新材料有限公司 | A method for recycling waste polyester textiles to prepare polyester fabrics |
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