CN114000342B - Low-light-transmittance moisture absorption curtain and preparation method thereof - Google Patents
Low-light-transmittance moisture absorption curtain and preparation method thereof Download PDFInfo
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- CN114000342B CN114000342B CN202111412917.9A CN202111412917A CN114000342B CN 114000342 B CN114000342 B CN 114000342B CN 202111412917 A CN202111412917 A CN 202111412917A CN 114000342 B CN114000342 B CN 114000342B
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- hydrochloric acid
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- 238000002834 transmittance Methods 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000010521 absorption reaction Methods 0.000 title claims description 35
- 239000000835 fiber Substances 0.000 claims abstract description 115
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 89
- 239000003063 flame retardant Substances 0.000 claims abstract description 89
- 238000009987 spinning Methods 0.000 claims abstract description 42
- -1 titanic acid 3-vinyl-4, 5-diaminophenyl ester Chemical class 0.000 claims abstract description 30
- 210000002268 wool Anatomy 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- 238000009965 tatting Methods 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 103
- 239000000243 solution Substances 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 35
- 239000011259 mixed solution Substances 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 21
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 20
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 14
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000004317 sodium nitrate Substances 0.000 claims description 10
- 235000010344 sodium nitrate Nutrition 0.000 claims description 10
- 238000003851 corona treatment Methods 0.000 claims description 9
- 238000003892 spreading Methods 0.000 claims description 9
- 230000007480 spreading Effects 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 238000009941 weaving Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 36
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 9
- 239000012964 benzotriazole Substances 0.000 abstract description 5
- 125000003277 amino group Chemical group 0.000 abstract description 4
- OOBDZXQTZWOBBQ-UHFFFAOYSA-N hexaphenol Chemical compound C1C2=CC(O)=C(O)C=C2CC2=CC(O)=C(O)C=C2CC2=C1C=C(O)C(O)=C2 OOBDZXQTZWOBBQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 4
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 abstract description 3
- 239000012954 diazonium Substances 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 238000011085 pressure filtration Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 239000000741 silica gel Substances 0.000 abstract description 2
- 229910002027 silica gel Inorganic materials 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 238000001914 filtration Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 150000001989 diazonium salts Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- AYTSDBGAHOKDHJ-UHFFFAOYSA-N 2-nitrobenzenediazonium Chemical class [O-][N+](=O)C1=CC=CC=C1[N+]#N AYTSDBGAHOKDHJ-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- 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
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- 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
- D01F6/94—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 other polycondensation products
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- 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
- D03D15/233—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 protein-based, e.g. wool or silk
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- 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
- D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
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- 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
- D03D15/50—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 properties of the yarns or threads
- D03D15/513—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 properties of the yarns or threads heat-resistant or fireproof
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
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- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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Abstract
The invention discloses a low-light-transmittance moisture-absorbing curtain and a preparation method thereof, and relates to the technical field of curtains. The invention firstly carries out interaction hydrolysis on isophthalic acid di-2-vinyl-3-amino m-nitrophenyl ester and titanic acid 3-vinyl-4, 5-diaminophenyl ester and simultaneously reacts to generate spinning solution containing silica gel and benzimidazole polymer, and then uses the spinning solution to spin to obtain flame-retardant fibers; performing ultrasonic atomization corona on the flame-retardant fiber to enable amino groups in the flame-retardant fiber to react to form diazonium salt compounds, so as to obtain post-treated flame-retardant fiber; and then the post-treated flame-retardant fibers and wool fibers are subjected to needle point heating tatting, so that the flame-retardant fibers after the interweaving points are in a molten state, then the wool fibers are wrapped to generate a benzotriazole compound, and then microwave negative pressure filtration washing is performed to generate a hexaphenol ferrite complex, so that the low-light-transmittance moisture-absorbing curtain which can effectively degrade harmful gases such as indoor formaldehyde and has good hygroscopicity, ultraviolet absorbability and flame retardance is obtained.
Description
Technical Field
The invention relates to the technical field of curtains, in particular to a low-light-transmittance moisture absorption curtain and a preparation method thereof.
Background
The curtain is made of cloth, hemp, yarn, aluminum sheet, wood sheet, metal material, etc. and has the functions of shading sun, insulating heat and regulating indoor light. The cloth curtain is widely applied because of the advantages of low cost, wide sources, convenience in style design and the like, and is divided into cotton gauze, polyester cloth, polyester-cotton blending, cotton-hemp blending, non-woven fabrics and the like according to materials.
In recent years, with development of technology and improvement of living standard, people have higher and higher requirements on living quality, and as a necessary household article for home life, the expected value of the functional curtain attached to the functional curtain is also increasing. For example, diversified work and rest time can require that the curtain has good shading performance, healthy living environment can require that the curtain can degrade harmful gases such as indoor formaldehyde and the like, and fire safety regulations can require that the curtain have flame retardance and the like. Although the technology of the functionalized curtain is mature, the functionalized curtain has the functions of shading light, absorbing ultraviolet rays, retarding flame, degrading indoor harmful gases and the like, and becomes a great difficulty in the technical field of the current curtain.
The present invention addresses this problem by preparing a low transmittance moisture absorbing window covering.
Disclosure of Invention
The invention aims to provide a low-light-transmittance moisture-absorbing curtain and a preparation method thereof, so as to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
the low-light-transmittance moisture-absorbing curtain mainly comprises, by weight, 40-80 parts of post-treated flame-retardant fibers and 32-96 parts of wool fibers.
Further, the post-treated flame-retardant fiber is obtained by performing ultrasonic atomization corona treatment on the flame-retardant fiber by using hydrochloric acid mixed solution.
Further, the flame-retardant fiber is prepared from blending yarns of di-2-vinyl-3-amino-m-nitrophenyl isophthalate and 3-vinyl-4, 5-diaminophenyl titanate.
Further, the hydrochloric acid mixed solution is obtained by mixing sodium nitrate and hydrochloric acid.
Further, the preparation method of the low-light-transmittance moisture absorption curtain mainly comprises the following preparation steps:
(1) Atomizing the hydrochloric acid mixed solution, introducing the atomized hydrochloric acid mixed solution into a closed container with flame-retardant fibers, performing ultrasonic treatment, and then performing corona treatment to obtain post-treated flame-retardant fibers;
(2) The method comprises the steps of tatting with the flame-retardant fibers after the post-treatment as warp yarns and the wool fibers as weft yarns, heating with needle points, dipping and rolling to obtain a pretreated curtain;
(3) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution, and carrying out suction filtration under the microwave condition to obtain the low-light-transmittance moisture absorption curtain.
Further, the preparation method of the low-light-transmittance moisture absorption curtain mainly comprises the following preparation steps:
(1) Placing the flame-retardant fiber in a closed container, vacuumizing to 10-20 Pa under nitrogen atmosphere, heating to 40-60 ℃ to 0.5-0.7 m 3 Introducing atomized hydrochloric acid mixed solution with the mass 5-6 times of that of the flame-retardant fiber at the speed of/s, then carrying out ultrasonic treatment for 20-30 min at the frequency of 30-50 kHz, taking out, and putting into a corona treatment machine for corona for 2-3 times under the conditions of the speed of 6-8 m/s and the current intensity of 8A to obtain the post-treated flame-retardant fiber;
(2) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:0.8 to 1:1.2, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 90-110 ℃, heating for 25-35 min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in 5-10 times of sodium carbonate solution with the mass fraction of 5-10% of the mass of the post-treated flame-retardant fiber for 20-30 min at 30-40 ℃, taking out, rolling for 2-3 times at 50-60 ℃ and under the rolling speed of 200-240 m/min and the pressure of 21-22 MPa, and naturally cooling to room temperature to obtain the pretreated curtain;
(3) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution with the mass fraction of 28% -30% which is 10-20 times of the mass of the pretreated curtain into the funnel for suction filtration for 30-40 min under the microwave conditions of 10-20 Pa, 2000-2400 MHz and 800-900W, naturally cooling to room temperature, and obtaining the low-light-transmittance moisture absorption curtain.
Further, the preparation method of the atomized hydrochloric acid mixed solution in the step (1) comprises the following steps: and under the ultrasonic condition of 1700 kHz-2400 kHz, carrying out ultrasonic atomization on the hydrochloric acid mixed solution for 7-8 hours to obtain the atomized hydrochloric acid mixed solution.
Further, the preparation method of the hydrochloric acid mixed solution comprises the following steps: under the stirring condition of 25-26 ℃ and 130-170 r/min, sodium nitrate and hydrochloric acid with the mass fraction of 36-38% are mixed according to the mass ratio of 1:0.6 to 1:0.8, mixing and stirring for 10-20 min to obtain hydrochloric acid mixed solution.
Further, the preparation method of the flame retardant fiber in the step (1) comprises the following steps: under the stirring condition of 60-80 ℃ and 200-220 r/min, the 2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 36-38% of olefine hydrochloric acid are mixed according to the mass ratio of 1:0.8:0.1 to 1:1.2:0.3, mixing and stirring for 10-20 min, and then dripping 0.6-0.8 times of 3-vinyl-4, 5-diaminophenyl titanate of which the mass is 0.6-0.8 times of that of di-2-vinyl-3-amino-m-nitrophenyl isophthalate at 60-80 drops/min, and stirring for 40-60 min at the same temperature and speed to obtain spinning solution; and (3) putting the spinning solution into a spinning box, spinning by using a screw extruder at the temperature of 230-275 ℃ and the spinning speed of 800-1200 m/min, and cooling and solidifying for 30-40 min by cross-blowing under the conditions of 14-20 ℃ and the humidity of 60-85% and the wind speed of 0.8-1.5 m/s to obtain the flame-retardant fiber.
Compared with the prior art, the invention has the following beneficial effects:
when the low-light-transmittance moisture-absorbing curtain is prepared by taking the post-treated flame-retardant fiber as warp yarn and wool fiber as weft yarn, firstly, preparing the flame-retardant fiber by using blending yarn of isophthalic acid di-2-vinyl-3-amino-m-nitrophenyl ester and titanic acid 3-vinyl-4, 5-diaminophenyl ester, then carrying out ultrasonic atomization corona on the flame-retardant fiber to obtain the post-treated flame-retardant fiber, and then carrying out needle point heating tatting and microwave negative pressure filtration washing on the post-treated flame-retardant fiber and the wool fiber to obtain the low-light-transmittance moisture-absorbing curtain.
Firstly, blending fiber of di-2-vinyl-3-amino-m-nitrophenyl isophthalate and 3-vinyl-4, 5-diaminophenyl titanate to prepare flame-retardant fiber, hydrolyzing ester groups in the di-2-vinyl-3-amino-m-nitrophenyl isophthalate and the 3-vinyl-4, 5-diaminophenyl titanate under the action of amino groups in the 3-vinyl-4, 5-diaminophenyl titanate to generate 2-vinyl-3-amino-m-nitrophenol and isophthalic acid, and hydrolyzing the 3-vinyl-4, 5-diaminophenyl titanate under the action of carboxyl to form titanium dioxide gel with a three-dimensional network structure and 3-vinyl-4, 5-diaminophenol with photocatalysis, wherein the flame-retardant fiber can effectively degrade indoor formaldehyde and other harmful gases under the illumination environment, so that the low-light transmittance moisture absorption curtain can effectively degrade indoor formaldehyde and other harmful gases; carboxyl in isophthalic acid and amino in 3-vinyl-4, 5-diaminophenol are polymerized to form benzimidazole polymer, so that the flame-retardant fiber has flame retardant property, and the low-light-transmittance moisture-absorbing curtain has flame retardant property.
Secondly, carrying out ultrasonic atomization corona on the flame-retardant fiber by using a hydrochloric acid mixed solution containing sodium nitrate to obtain a post-treated flame-retardant fiber, and diazotizing amino groups in the flame-retardant fiber to generate diazonium salt compounds, so that the moisture absorption performance of the low-light-transmittance moisture absorption curtain is enhanced; then the post-treated flame-retardant fiber and wool fiber are subjected to needle point heating tatting, the flame-retardant fiber at the cross-linked knot is in a molten state to wrap the wool fiber, at the moment, o-nitrobenzene diazonium salt on the flame-retardant fiber and the amino acid on the wool fiber react to form a benzotriazole compound, when being irradiated by ultraviolet light, electrons around oxygen atoms on the benzotriazole compound are transferred to nitrogen atoms of a triazole structure to form a tautomer with poor stability in an excited state, and the tautomer converts redundant energy into heat energy to be released and quickly restored to a relatively stable ground state form, so that the low-light-transmittance moisture absorption curtain has ultraviolet absorption performance; finally, carrying out microwave negative pressure filtration by using ferric trichloride solution, wherein the ferric trichloride is quickly immersed into loose flame-retardant fibers and forms hexaphenol ferrite complex with phenolic hydroxyl groups in the flame-retardant fibers, so that the moisture absorption performance and the fiber strength of the flame-retardant fibers are improved, and the moisture absorption performance of the low-light-transmittance moisture absorption curtain is further enhanced.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to more clearly illustrate the method provided by the invention, the following examples are used for describing the detailed description, and the method for testing each index of the low-transmittance moisture absorption curtain prepared in the following examples is as follows:
hygroscopicity: the low-transmittance moisture absorption curtain prepared by the examples and the comparative examples with the same length and width is tested for moisture regain according to the GB/T9994 standard method.
Flame retardancy: the low-transmittance moisture absorption curtain prepared by the examples and the comparative examples with the same length and width is tested for limiting oxygen index according to the GB/T5454 standard method.
Harmful gas degradability: placing low-transmittance moisture-absorbing curtains prepared by the examples and the comparative examples with the same length and width and inferior paint with the mass 0.5-0.7 times of that of the low-transmittance moisture-absorbing curtains in a closed container under the conditions of 25-26 ℃ and 50-60% humidity, starting a stirring fan to simulate indoor air microcirculation, and recording the formaldehyde concentration C0 in a formaldehyde testing device after 30min of standing; and then the sunlight simulator is turned on to irradiate the low-light-transmittance moisture absorption curtain for 12-14 hours, and then the formaldehyde concentration C1 in the container is tested and recorded, wherein the formaldehyde degradation rate is= (C0-C1) 100%/C0.
Ultraviolet light absorption: the transmittance and the ultraviolet protection coefficient of UVA and UVB are tested according to the GB/T18830 standard method by taking the low-transmittance moisture absorption curtains prepared by the examples with the same length and width and the comparative examples.
Example 1
The low-light-transmittance moisture-absorbing curtain mainly comprises 40 parts of post-treated flame-retardant fibers and 32 parts of wool fibers in parts by weight.
The preparation method of the low-light-transmittance moisture-absorbing curtain mainly comprises the following preparation steps:
(1) Under the stirring condition of 60 ℃ and 200r/min, the di-2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 36% of olefine hydrochloric acid are mixed according to the mass ratio of 1:0.8:0.1, mixing and stirring for 10min, and then dropwise adding 3-vinyl-4, 5-diaminophenyl titanate which is 0.6 times of the mass of the di-2-vinyl-3-amino-m-nitrophenyl isophthalate at 60 drops/min, and stirring for 40min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at 230 ℃ and a spinning speed of 800m/min, and cooling and solidifying for 30min by cross blowing under the conditions of 14 ℃ and a humidity of 60% and a wind speed of 0.8m/s to obtain flame-retardant fibers;
(2) Under the stirring condition of 25 ℃ and 130r/min, sodium nitrate and hydrochloric acid with the mass fraction of 36 percent are mixed according to the mass ratio of 1:0.6, mixing and stirring for 10min to obtain hydrochloric acid mixed solution; under 1700kHz ultrasonic conditions, ultrasonically atomizing the hydrochloric acid mixed solution for 7 hours to obtain atomized hydrochloric acid mixed solution; placing the flame-retardant fiber in a closed container, vacuumizing to 10Pa under nitrogen atmosphere, and heating to 40deg.C at a speed of 0.5m 3 Introducing atomized hydrochloric acid mixed solution with the mass 5 times of that of the flame-retardant fiber at the speed of/s, performing ultrasonic treatment at the frequency of 30kHz for 20min, taking out, and putting into a corona treatment machine for corona 2 times under the conditions of the speed of 6m/s and the current intensity of 8A to obtain the post-treated flame-retardant fiber;
(3) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:0.8, weaving the warp yarns and the weft yarns, fixing the warp yarn and weft yarn crosslinking points by using silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 90 ℃, heating for 25min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in a sodium carbonate solution with the mass fraction of 5% which is 5 times that of the post-treated flame-retardant fiber for 20min at the temperature of 30 ℃, taking out, rolling for 2 times at the rolling speed of 50 ℃ and the rolling speed of 200m/min and the pressure of 21MPa, and naturally cooling to room temperature to obtain a pretreated curtain;
(4) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution with the mass fraction of 28% which is 10 times of the mass of the pretreated curtain into the funnel at the speed of 10mL/min under the microwave conditions of 10Pa, 2000MHz and 800W, filtering for 30min, baking for 0.8h at the temperature of 40 ℃, and naturally cooling to room temperature to obtain the low-light-transmittance moisture absorption curtain.
Example 2
The low-light-transmittance moisture-absorbing curtain mainly comprises, by weight, 60 parts of post-treated flame-retardant fibers and 60 parts of wool fibers.
The preparation method of the low-light-transmittance moisture-absorbing curtain mainly comprises the following preparation steps:
(1) Under the stirring condition of 70 ℃ and 210r/min, di-2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 37 mass percent of olefine hydrochloric acid are mixed according to the mass ratio of 1:1:0.2, mixing and stirring for 15min, and then dropwise adding 3-vinyl-4, 5-diaminophenyl titanate with the mass which is 0.7 times that of the 2-vinyl-3-amino-m-nitrophenyl isophthalate at 70 drops/min, and stirring for 50min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at 252.5 ℃ and a spinning speed of 1000m/min, and cooling and solidifying for 35min by cross blowing under the conditions of 17 ℃ and a humidity of 72.5% and a wind speed of 1.15m/s to obtain flame-retardant fibers;
(2) Under the stirring condition of 25.5 ℃ and 150r/min, sodium nitrate and 37 mass percent hydrochloric acid are mixed according to the mass ratio of 1:0.7, mixing and stirring for 15min to obtain hydrochloric acid mixed solution; under 2050kHz ultrasonic condition, ultrasonically atomizing the hydrochloric acid mixed solution for 7.5 hours to obtain atomized hydrochloric acid mixed solution; placing the flame-retardant fiber in a closed container, vacuumizing to 15Pa, and heating to 50deg.C at a speed of 0.6m 3 Introducing an atomized hydrochloric acid mixed solution with the mass 5.5 times of that of the flame-retardant fiber at the speed of/s, performing ultrasonic treatment at the frequency of 40kHz for 25min, taking out, and putting into a corona treatment machine for corona 2 times under the conditions of the speed of 7m/s and the current intensity of 8A to obtain the post-treated flame-retardant fiber;
(3) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:1, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by using silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 100 ℃, heating for 30min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in 7.5 times of 7.5% sodium carbonate solution at 35 ℃ for 25min, taking out, rolling for 2 times at 55 ℃ and 220m/min under 21.5MPa, and naturally cooling to room temperature to obtain a pretreated curtain;
(4) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution with the mass fraction of 29% which is 15 times of the mass of the pretreated curtain into the funnel at the speed of 15mL/min under the microwave conditions of 15Pa, 2200MHz and 850W, filtering for 35min, baking for 1h at 45 ℃, and naturally cooling to room temperature to obtain the low-light-transmittance moisture absorption curtain.
Example 3
The low-light-transmittance moisture-absorbing curtain mainly comprises 80 parts of post-treated flame-retardant fibers and 96 parts of wool fibers in parts by weight.
The preparation method of the low-light-transmittance moisture-absorbing curtain mainly comprises the following preparation steps:
(1) Under the stirring condition of 80 ℃ and 220r/min, di-2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 38% of olefine hydrochloric acid are mixed according to the mass ratio of 1:1.2:0.3, mixing and stirring for 20min, and then dropwise adding 3-vinyl-4, 5-diaminophenyl titanate which is 0.8 times of the mass of the di-2-vinyl-3-amino-m-nitrophenyl isophthalate at 80 drops/min, and stirring for 60min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at a spinning speed of 1200m/min at a temperature of 275 ℃, and cooling and solidifying for 40min by cross blowing at a humidity of 85% and a wind speed of 1.5m/s at a temperature of 20 ℃ to obtain flame-retardant fibers;
(2) Under the stirring condition of 26 ℃ and 170r/min, sodium nitrate and hydrochloric acid with the mass fraction of 38% are mixed according to the mass ratio of 1:0.8, mixing and stirring for 20min to obtain hydrochloric acid mixed solution; under 2400kHz ultrasonic conditions, ultrasonically atomizing the hydrochloric acid mixed solution for 8 hours to obtain an atomized hydrochloric acid mixed solution; placing the flame-retardant fiber in a closed container, vacuumizing to 20Pa under nitrogen atmosphere, and heating to 60 ℃ to 0.7m 3 Introducing atomized hydrochloric acid mixed solution with the mass of 6 times of that of the post-treated flame-retardant fiber at the rate of/s, then performing ultrasonic treatment at the frequency of 50kHz for 30min, taking out, and performing ultrasonic treatment at the speed of 8m/sUnder the conditions of the speed of 8A and the current intensity, placing the fiber into a corona treatment machine for corona for 3 times to obtain post-treated flame-retardant fiber;
(3) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:1.2, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by using silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 110 ℃, heating for 35min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in 10 mass percent of 10% sodium carbonate solution with 10 mass percent of flame-retardant fibers for 30min at 40 ℃, taking out, rolling for 3 times at 60 ℃ and 240m/min under 22MPa, and naturally cooling to room temperature to obtain a pretreated curtain;
(4) Spreading the pretreated curtain in a funnel, pouring 30% ferric trichloride solution with the mass fraction of 30% which is 20 times of the pretreated curtain in mass at a rate of 20mL/min under the microwave conditions of 20Pa, 2400MHz and 900W into the funnel, carrying out suction filtration for 40min, drying for 1.2h at 50 ℃, and naturally cooling to room temperature to obtain the low-light-transmittance moisture absorption curtain.
Comparative example 1
The recipe of comparative example 1 was the same as in example 2. The manufacturing method of the low-transmittance moisture absorption curtain is different from that of the embodiment 2 only in the step (1), and the step (1) is modified as follows: 3-vinyl-4, 5-diaminophenyl titanate and toluene are stirred at 70 ℃ and 210r/min according to the mass ratio of 1:1, mixing and stirring for 50min to obtain spinning solution; and (3) putting the spinning solution into a spinning box, spinning by using a screw extruder at 252.5 ℃ and a spinning speed of 1000m/min, and cooling and solidifying for 35min by cross blowing at 17 ℃ under the conditions of a humidity of 72.5% and a wind speed of 1.15m/s to obtain the flame-retardant fiber. The remaining preparation steps were the same as in example 2.
Comparative example 2
The low-light-transmittance moisture-absorbing curtain mainly comprises 60 parts of flame-retardant fibers and 60 parts of wool fibers in parts by weight.
The preparation method of the low-light-transmittance moisture-absorbing curtain mainly comprises the following preparation steps:
(1) Under the stirring condition of 70 ℃ and 210r/min, di-2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 37 mass percent of olefine hydrochloric acid are mixed according to the mass ratio of 1:1:0.2, mixing and stirring for 15min, and then dropwise adding 3-vinyl-4, 5-diaminophenyl titanate with the mass which is 0.7 times that of the 2-vinyl-3-amino-m-nitrophenyl isophthalate at 70 drops/min, and stirring for 50min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at 252.5 ℃ and a spinning speed of 1000m/min, and cooling and solidifying for 35min by cross blowing under the conditions of 17 ℃ and a humidity of 72.5% and a wind speed of 1.15m/s to obtain flame-retardant fibers;
(2) The flame-retardant fiber is used as warp yarn, the wool fiber is used as weft yarn, and the mass ratio is 1:1, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by using silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 100 ℃, heating for 30min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in sodium carbonate solution with 7.5 mass percent and 7.5 mass percent of flame-retardant fiber for 25min at 35 ℃, taking out, rolling for 2 times at 55 ℃ and 220m/min rolling speed and 21.5MPa pressure, and naturally cooling to room temperature to obtain a pretreated curtain;
(3) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution with the mass fraction of 29% which is 15 times of the mass of the pretreated curtain into the funnel at the speed of 15mL/min under the microwave conditions of 15Pa, 2200MHz and 850W, filtering for 35min, baking for 1h at 45 ℃, and naturally cooling to room temperature to obtain the low-light-transmittance moisture absorption curtain.
Comparative example 3
The recipe for comparative example 3 was the same as in example 2. The manufacturing method of the low-transmittance moisture absorption curtain is different from that of the embodiment 2 only in the steps (3) and (4), and the step (3) is modified as follows: the after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:1, weaving warp yarns and weft yarns to obtain a curtain; modifying step (4) to: spreading the curtain in a funnel, pouring a ferric trichloride solution with the mass fraction of 29% which is 15 times of the mass of the curtain into the funnel at the speed of 15mL/min under the microwave conditions of 15Pa, 2200MHz and 850W, filtering for 35min, baking for 1h at 45 ℃, and naturally cooling to room temperature to obtain the moisture absorption curtain with low light transmittance. The remaining preparation steps were the same as in example 2.
Comparative example 4
The low-light-transmittance moisture-absorbing curtain mainly comprises, by weight, 60 parts of post-treated flame-retardant fibers and 60 parts of wool fibers.
The preparation method of the low-light-transmittance moisture-absorbing curtain mainly comprises the following preparation steps:
(1) Under the stirring condition of 70 ℃ and 210r/min, di-2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 37 mass percent of olefine hydrochloric acid are mixed according to the mass ratio of 1:1:0.2, mixing and stirring for 15min, and then dropwise adding 3-vinyl-4, 5-diaminophenyl titanate with the mass which is 0.7 times that of the 2-vinyl-3-amino-m-nitrophenyl isophthalate at 70 drops/min, and stirring for 50min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at 252.5 ℃ and a spinning speed of 1000m/min, and cooling and solidifying for 35min by cross blowing under the conditions of 17 ℃ and a humidity of 72.5% and a wind speed of 1.15m/s to obtain flame-retardant fibers;
(2) Under the stirring condition of 25.5 ℃ and 150r/min, sodium nitrate and 37 mass percent hydrochloric acid are mixed according to the mass ratio of 1:0.7, mixing and stirring for 15min to obtain hydrochloric acid mixed solution; under 2050kHz ultrasonic condition, ultrasonically atomizing the hydrochloric acid mixed solution for 7.5 hours to obtain atomized hydrochloric acid mixed solution; placing the flame-retardant fiber in a closed container, vacuumizing to 15Pa, and heating to 50deg.C at a speed of 0.6m 3 Introducing an atomized hydrochloric acid mixed solution with the mass 5.5 times of that of the flame-retardant fiber at the speed of/s, performing ultrasonic treatment at the frequency of 40kHz for 25min, taking out, and putting into a corona treatment machine for corona 2 times under the conditions of the speed of 7m/s and the current intensity of 8A to obtain the post-treated flame-retardant fiber;
(3) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:1, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by using silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 100 ℃, heating for 30min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in 7.5 times of 7.5% sodium carbonate solution at 35 ℃ to obtain a finished flame-retardant fiber, taking out, rolling for 2 times at 55 ℃ and 220m/min under 21.5MPa, naturally cooling to room temperature, baking at 45 ℃ for 1h, and naturally cooling to room temperature to obtain the low-light-transmittance moisture-absorbing curtain.
Effect example
The following table 1 shows the analysis results of formaldehyde degradation rate, ultraviolet absorptivity and hygroscopicity of the low-transmittance moisture-absorbing curtains prepared by using examples 1 to 3 and comparative examples 1 to 4 of the present invention.
TABLE 1
From table 1, it can be found that the low-transmittance moisture absorption curtains prepared in examples 1, 2 and 3 can effectively degrade harmful gases such as indoor formaldehyde under illumination, and have good moisture absorption, ultraviolet absorption and flame retardance; from comparison of experimental data of examples 1, 2 and 3 and comparative example 1, it can be found that the flame-retardant fiber is prepared by using the blending yarn of the isophthalic acid di-2-vinyl-3-amino-m-nitrophenyl ester and the titanic acid 3-vinyl-4, 5-diaminophenyl ester, the interaction hydrolysis of the isophthalic acid di-2-vinyl-3-amino-m-nitrophenyl ester and the titanic acid 3-vinyl-4, 5-diaminophenyl ester generates silica gel and benzimidazole polymer, the diazonium compound is generated during subsequent ultrasonic atomization corona, the benzotriazole compound is generated during needle point heating and tatting, and the hexaphenol ferrite complex is generated during microwave negative pressure washing, so that the flame retardance of the flame-retardant fiber is strong, harmful gases such as indoor formaldehyde can be effectively degraded under illumination, and further the flame retardance, hygroscopicity and ultraviolet absorptivity of the low-transmittance hygroscopic curtain are strong, and harmful gases such as indoor formaldehyde can be effectively degraded under illumination; from the experimental data of examples 1, 2 and 3 and comparative examples 2 and 3, it can be found that the flame-retardant fiber is subjected to ultrasonic atomization corona by using a hydrochloric acid solution containing sodium nitrate, amino groups in the flame-retardant fiber are reacted to generate diazonium salt, so as to obtain post-treated flame-retardant fiber, and then the post-treated flame-retardant fiber and wool fiber are woven to generate benzotriazole compound after being subjected to needle point heating and weaving treatment, so that the low-light-transmittance moisture-absorbing curtain has ultraviolet absorptivity and strong moisture absorption; from the experimental data of examples 1, 2, 3 and comparative example 4, it was found that after the microwave negative pressure washing using the ferric trichloride solution, hexaphenol ferrite complex was generated in the low-transmittance hygroscopic window curtain, and the hygroscopicity of the low-transmittance hygroscopic window curtain was enhanced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The preparation method of the low-light-transmittance moisture absorption curtain is characterized by mainly comprising the following preparation steps of:
(1) Atomizing the hydrochloric acid mixed solution, introducing the atomized hydrochloric acid mixed solution into a closed container with flame-retardant fibers, performing ultrasonic treatment, and then performing corona treatment to obtain post-treated flame-retardant fibers;
(2) The method comprises the steps of tatting with the flame-retardant fibers after the post-treatment as warp yarns and the wool fibers as weft yarns, heating with needle points, dipping and rolling to obtain a pretreated curtain;
(3) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution, and carrying out suction filtration under the microwave condition to obtain a low-light-transmittance moisture absorption curtain;
the preparation method of the low-light-transmittance moisture absorption curtain mainly comprises the following preparation steps:
(1) Placing the flame-retardant fiber in a closed container, vacuumizing to 10-20 Pa under nitrogen atmosphere, heating to 40-60 ℃, introducing atomized hydrochloric acid mixed solution with the mass 5-6 times of that of the flame-retardant fiber at a rate of 0.5-0.7 m < 3 >/s, performing ultrasonic treatment at a frequency of 30-50 kHz for 20-30 min, taking out, and placing into a corona treatment machine for corona for 2-3 times under the conditions of a speed of 6-8 m < 3 > and a current intensity of 8A to obtain the post-treated flame-retardant fiber;
the preparation method of the flame-retardant fiber comprises the following steps: under the stirring condition of 60-80 ℃ and 200-220 r/min, the 2-vinyl-3-amino m-nitrophenyl isophthalate, distilled water and 36-38 mass percent of dilute hydrochloric acid are mixed according to the mass ratio of 1:0.8:0.1 to 1:1.2:0.3, mixing and stirring for 10-20 min, and then dripping 0.6-0.8 times of 3-vinyl-4, 5-diaminophenyl titanate of which the mass is 0.6-0.8 times of that of di-2-vinyl-3-amino-m-nitrophenyl isophthalate at 60-80 drops/min, and stirring for 40-60 min at the same temperature and speed to obtain spinning solution; putting the spinning solution into a spinning box, spinning by using a screw extruder at the temperature of 230-275 ℃ and the spinning speed of 800-1200 m/min, and cooling and solidifying for 30-40 min by lateral blowing under the conditions of 14-20 ℃ with the humidity of 60-85% and the wind speed of 0.8-1.5 m/s to obtain flame-retardant fibers;
(2) The after-treated flame-retardant fiber is used as warp yarn, and wool fiber is used as weft yarn, and the mass ratio is 1:0.8 to 1:1.2, weaving warp yarns and weft yarns, fixing warp yarn and weft yarn crosslinking points by silver needles, connecting a resistance wire with a silver needle handle, adjusting the temperature to 90-110 ℃, heating for 25-35 min, and then pulling out the silver needles to obtain a curtain; soaking the curtain in 5-10 times of sodium carbonate solution with the mass fraction of 5-10% of the mass of the post-treated flame-retardant fiber for 20-30 min at 30-40 ℃, taking out, rolling for 2-3 times at 50-60 ℃ and under the rolling speed of 200-240 m/min and the pressure of 21-22 MPa, and naturally cooling to room temperature to obtain the pretreated curtain;
(3) Spreading the pretreated curtain in a funnel, pouring ferric trichloride solution with the mass fraction of 28% -30% which is 10-20 times of the mass of the pretreated curtain into the funnel for suction filtration for 30-40 min under the microwave conditions of 10-20 Pa, 2000-2400 MHz and 800-900W, naturally cooling to room temperature, and obtaining the low-light-transmittance moisture absorption curtain.
2. The method for preparing a low-transmittance moisture-absorbing curtain as set forth in claim 1, wherein the method for preparing the atomized hydrochloric acid mixture in step (1) comprises the following steps: and under the ultrasonic condition of 1700 kHz-2400 kHz, carrying out ultrasonic atomization on the hydrochloric acid mixed solution for 7-8 hours to obtain the atomized hydrochloric acid mixed solution.
3. The method for preparing a low-transmittance moisture-absorbing curtain as claimed in claim 2, wherein the hydrochloric acid mixture is obtained by mixing sodium nitrate and hydrochloric acid.
4. The method for preparing the low-light-transmittance moisture-absorbing curtain as claimed in claim 3, wherein the method for preparing the hydrochloric acid mixed solution comprises the following steps: under the stirring condition of 25-26 ℃ and 130-170 r/min, sodium nitrate and hydrochloric acid with the mass fraction of 36-38% are mixed according to the mass ratio of 1:0.6 to 1:0.8, mixing and stirring for 10-20 min to obtain hydrochloric acid mixed solution.
5. The method for preparing the low-light-transmittance moisture-absorbing curtain as claimed in claim 1, which is characterized by mainly comprising 40-80 parts of post-treated flame-retardant fibers and 32-96 parts of wool fibers in parts by weight.
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