CN110835470A - Plastic particle and preparation method thereof - Google Patents
Plastic particle and preparation method thereof Download PDFInfo
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- CN110835470A CN110835470A CN201810928398.3A CN201810928398A CN110835470A CN 110835470 A CN110835470 A CN 110835470A CN 201810928398 A CN201810928398 A CN 201810928398A CN 110835470 A CN110835470 A CN 110835470A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 50
- 239000004033 plastic Substances 0.000 title claims abstract description 50
- 239000002245 particle Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 18
- -1 polysiloxane Polymers 0.000 claims abstract description 24
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 18
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 15
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 10
- 239000002667 nucleating agent Substances 0.000 claims abstract description 10
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 16
- 238000005303 weighing Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 229920000426 Microplastic Polymers 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- INBMQYRWBRXTJA-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCC)[Na] Chemical compound C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCC)[Na] INBMQYRWBRXTJA-UHFFFAOYSA-N 0.000 claims 1
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000002585 base Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- UDHMTPILEWBIQI-UHFFFAOYSA-N butyl naphthalene-1-sulfonate;sodium Chemical compound [Na].C1=CC=C2C(S(=O)(=O)OCCCC)=CC=CC2=C1 UDHMTPILEWBIQI-UHFFFAOYSA-N 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- KZOJQMWTKJDSQJ-UHFFFAOYSA-M sodium;2,3-dibutylnaphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CCCC)C(CCCC)=CC2=C1 KZOJQMWTKJDSQJ-UHFFFAOYSA-M 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a plastic particle and a preparation method thereof, and the plastic particle comprises the following raw material components: 120-160 parts of recycled plastic, 30-40 parts of polysiloxane, 8-12 parts of antioxidant, 12-25 parts of plasticizer, 10-15 parts of emulsifier, 15-20 parts of polyvinylidene chloride, 1-5 parts of tackifier, 20-30 parts of aluminum oxide and 10-15 parts of nucleating agent. The invention takes the waste plastics as raw materials, is environment-friendly and reliable; and has stronger high temperature resistance, corrosion resistance and pressure resistance.
Description
Technical Field
The invention belongs to the field of plastic products, and particularly relates to plastic particles and a preparation method thereof.
Background
The invention of plastic brings convenience to people's life, but also causes pollution to the environment to a certain extent, and compared with the original resource development, the recovery of waste plastic has lower cost, so the recovery of waste plastic has very wide market and potential. The waste polyethylene is increased day by day, and if the waste polyethylene is not applied, resources are wasted, and the environment is greatly polluted.
The prior art (CN108003430A) discloses an environment-friendly recycled plastic particle and a preparation method thereof, wherein the environment-friendly recycled plastic particle is composed of the following raw materials in parts by weight: 18-36 parts of recycled plastic, 8-12 parts of starch, 3-5 parts of calcium carbonate powder, 3-5 parts of graphene, 1-3 parts of antioxidant, 0.5-1.5 parts of brightener and 2-4 parts of plasticizer. The preparation method comprises the following steps: (1) weighing raw materials according to the weight fraction of each raw material; (2) crushing the recycled plastic and barium sulfate; (3) heating the mixture obtained in the step (2) to a molten state, and adding starch, an antioxidant, a brightener and a plasticizer; (4) and (4) putting the mixed melt obtained in the step (3) into a screw injection molding machine to extrude granules, thus obtaining the regenerated plastic granules. Due to the mixed raw material sources of the recycled plastics, the application range of the recycled plastics has certain limitations in view of the safety and sanitation of the recycled plastics.
Therefore, the regenerated plastic particles are not suitable for being recycled on food, medical treatment, living and other articles, and are more suitable for indoor cold and hot water supply systems, heating systems and wastewater treatment systems of buildings. Therefore, the high-temperature strength is particularly important, and the cold and hot water pipes are buried, so that the corrosion resistance and the pressure resistance directly influence the service life of the cold and hot water pipes.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an environment-friendly, reliable, high-temperature-resistant and corrosion-resistant regenerated plastic particle and a preparation method thereof.
The invention is realized by the following technical scheme: the plastic particle comprises the following components in parts by weight: 120-160 parts of recycled plastic, 30-40 parts of polysiloxane, 8-12 parts of antioxidant, 12-25 parts of plasticizer, 10-15 parts of emulsifier, 15-20 parts of polyvinylidene chloride, 1-5 parts of tackifier, 20-30 parts of aluminum oxide and 10-15 parts of nucleating agent.
Further, the plastic particles comprise the following components in parts by weight: the composition comprises the following components in parts by weight: 140 parts of recycled plastic, 35 parts of polysiloxane, 10 parts of antioxidant, 18 parts of plasticizer, 12 parts of emulsifier, 17 parts of polyvinylidene chloride, 3 parts of tackifier, 25 parts of aluminum oxide and 13 parts of nucleating agent.
Further, the polysiloxane is one or a mixture of polysiloxane rubber and polysiloxane resin.
Further, the antioxidant is one or a mixture of two of an antioxidant 1035 and an antioxidant 168.
Further, the plasticizer is one or a mixture of polyethylene wax and polyvinyl alcohol.
Further, the emulsifier is one or a mixture of sodium butyl naphthalene sulfonate and sodium dibutyl naphthalene sulfonate.
Further, the tackifier is a silane coupling agent KH 550.
The preparation method of the plastic particles comprises the following steps:
(1) weighing the regenerated plastic and the polysiloxane according to the parts by weight, grinding into powder, and fully mixing to obtain a base material;
(2) weighing the emulsifier, polyvinylidene chloride, the tackifier and alumina according to the weight parts, controlling the temperature to be 49-78 ℃, and mixing and stirring for 14-32 minutes to obtain a modified material 1;
(3) weighing the plasticizer according to the weight part, controlling the temperature at 69-110 ℃, and mixing and stirring for about 9-25 minutes to obtain a modified material 2;
(4) mixing the base material, the modified material 1 and the modified material 2 obtained in the steps (1), (2) and (3), sequentially and slowly adding an antioxidant and a nucleating agent in the mixing process, controlling the mixing time to be 13-35 minutes, then extruding into granules, and finally obtaining a finished product after cooling and forming.
Further, the mixing in step (4) may control the speed at 2400-.
Further, the extrusion granulation in the step (4) can control the extrusion temperature to 145-245 ℃.
Compared with the prior art, the regenerated plastic particles and the preparation method thereof have the following advantages: (1) the waste plastics are used as raw materials, so that the use amount of new plastics can be reduced, the waste plastics can be recycled, and the environment-friendly and reliable effects are achieved; (2) the recycled plastic has stronger high temperature resistance, corrosion resistance and pressure resistance, and can be widely used for indoor cold and hot water supply systems, heating systems and wastewater treatment systems of buildings; (3) the used auxiliary materials and additives have wide sources, low price and stronger practicability; (4) the preparation process of the plastic particles is simple, the production conditions are high in realizability, and the popularization is convenient.
PolysiloxanesThe polymer is a polymer which takes repeated Si-O bonds as main chains and directly connects organic groups on silicon atoms. The chemical formula is [ R ]nSiO4-n/2]mWherein R represents an organic group such as methyl, phenyl, etc.; n is the number (between 1 and 3) of organic groups connected to the silicon atom; m is polymerization degree (m is more than or equal to 2).
The ratio of organic substituents (R) to silicon atoms (Si) in the polysiloxane molecule is an important parameter in determining the form of the product. When R/Si is less than 2, the product is organic silicon resin; when R/Si is approximately equal to 2, the rubber is raw rubber with high viscous plastic property, namely silicon rubber; when R/Si is more than 2, the product is low molecular weight oil and is called silicone oil.
The polysiloxane has the performances of inorganic materials and organic materials, has the basic properties of low surface tension, small viscosity-temperature coefficient, high compressibility, high gas permeability and the like, has the excellent characteristics of high and low temperature resistance, electrical insulation, oxidation resistance stability, weather resistance, flame retardancy, hydrophobicity, corrosion resistance, no toxicity, no odor, physiological inertia and the like, and is widely applied to the industries of aerospace, electronics and electrical, construction, transportation, chemical engineering, textile, food, light industry, medical treatment and the like.
Sodium butylnaphthalenesulfonateOff-white or yellowish powder, readily soluble in water. The permeability can be greatly increased after a small amount of salt is added in the environment of acid resistance, alkali resistance, hard water resistance, inorganic salt resistance. It is widely used as an emulsifier in the synthetic rubber industry, and also as a detergent, a dyeing assistant, a dispersant, an insecticide, a herbicide, etc.
Di-butyl sodium naphthalene sulfonateIt can be used as emulsifier in the production of synthetic rubber, and also can be used in printing and dyeing, paper-making and wool-spinning industries, and can be used as penetrant, emulsifier, detergent, dyeing assistant, dispersant and wetting agent, etc.
For a better understanding and practice, the present invention is described in detail below.
Detailed Description
Example one
A plastic particle and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) weighing 140 parts of regenerated plastic and 35 parts of polysiloxane according to parts by weight, grinding into powder, and fully mixing to obtain a base material;
(2) weighing 15 parts of emulsifier, 20 parts of polyvinylidene chloride, 5 parts of tackifier and 27 parts of alumina according to the parts by weight, controlling the stirring temperature at 65 ℃, and mixing and stirring for 22 minutes to obtain a modified material 1;
(3) weighing 20 parts of plasticizer according to the parts by weight, feeding, controlling the stirring temperature at 85 ℃, and mixing and stirring for 15 minutes to obtain a modified material 2;
(4) and (3) mixing the base material, the modified material 1 and the modified material 2 obtained in the steps (1), (2) and (3), and in the mixing process, slowly adding 12 parts of antioxidant and 14 parts of nucleating agent in sequence, controlling the mixing speed at 2600r/m and the mixing time at 22 minutes, then controlling the extrusion temperature at 240 ℃ to extrude into granules, and finally obtaining the finished product after cooling and forming.
Example two
A plastic particle and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) weighing 148 parts of recycled plastic and 37 parts of polysiloxane according to parts by weight, grinding into powder, and fully mixing to obtain a base;
(2) weighing 12 parts of emulsifier, 16 parts of polyvinylidene chloride, 4 parts of tackifier and 23 parts of alumina according to the parts by weight, controlling the stirring temperature at 67 ℃, and mixing and stirring for 22 minutes to obtain a modified material 1;
(3) weighing 20 parts of plasticizer according to the parts by weight, controlling the stirring temperature at 90 ℃, and mixing and stirring for 19 minutes to obtain a modified material 2;
(4) and (3) mixing the base material, the modified material 1 and the modified material 2 obtained in the steps (1), (2) and (3), and in the mixing process, slowly adding 12 parts of antioxidant and 14 parts of nucleating agent in sequence, controlling the mixing speed at 2600r/m and the mixing time at 22 minutes, then controlling the extrusion temperature at 245 ℃ to extrude into granules, and finally obtaining the finished product after cooling and forming.
EXAMPLE III
A plastic particle and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) weighing 136 parts of regenerated plastic and 34 parts of polysiloxane according to parts by weight, grinding into powder, and fully mixing to obtain a base material;
(2) weighing 9 parts of emulsifier, 12 parts of polyvinylidene chloride, 3 parts of tackifier and 29 parts of alumina according to the parts by weight, controlling the stirring temperature at 67 ℃, and mixing and stirring for 30 minutes to obtain a modified material 1;
(3) weighing 23 parts of plasticizer according to parts by weight, controlling the stirring temperature at 85 ℃, and mixing and stirring for 15 minutes to obtain a modified material 2;
(4) and (3) mixing the base material, the modified material 1 and the modified material 2 obtained in the steps (1), (2) and (3), and in the mixing process, slowly adding 12 parts of antioxidant and 12 parts of nucleating agent in sequence, controlling the mixing speed at 2900r/m, controlling the mixing time at 14 minutes, then controlling the extrusion temperature at 215 ℃ for extrusion molding, and finally obtaining a finished product after cooling molding.
Compared with the prior art, the regenerated plastic particles and the preparation method thereof have the following advantages: (1) the waste plastics are used as raw materials, so that the use amount of new plastics can be reduced, the waste plastics can be recycled, and the environment-friendly and reliable effects are achieved; (2) the recycled plastic has stronger high temperature resistance, corrosion resistance and pressure resistance, and can be widely used for indoor cold and hot water supply systems, heating systems and wastewater treatment systems of buildings; (3) the used auxiliary materials and additives have wide sources, low price and stronger practicability; (4) the preparation process of the plastic particles is simple, the production conditions are high in realizability, and the popularization is convenient.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (10)
1. The plastic particle is characterized by comprising the following components in parts by weight: 120-160 parts of recycled plastic, 30-40 parts of polysiloxane, 8-12 parts of antioxidant, 12-25 parts of plasticizer, 10-15 parts of emulsifier, 15-20 parts of polyvinylidene chloride, 1-5 parts of tackifier, 20-30 parts of aluminum oxide and 10-15 parts of nucleating agent.
2. The plastic granules according to claim 1, characterized by consisting of the following components in parts by weight: 140 parts of recycled plastic, 35 parts of polysiloxane, 10 parts of antioxidant, 18 parts of plasticizer, 12 parts of emulsifier, 17 parts of polyvinylidene chloride, 3 parts of tackifier, 25 parts of aluminum oxide and 13 parts of nucleating agent.
3. Plastic granules according to claim 1 or 2, characterized in that: the polysiloxane is one or a mixture of polysiloxane rubber and polysiloxane resin.
4. Plastic granules according to claim 1 or 2, characterized in that: the antioxidant is one or the mixture of 1035 and 168.
5. Plastic granules according to claim 1 or 2, characterized in that: the plasticizer is one or a mixture of polyethylene wax and polyvinyl alcohol.
6. Plastic granules according to claim 1 or 2, characterized in that: the emulsifier is one or a mixture of butyl sodium naphthalene sulfonate and dibutyl sodium naphthalene sulfonate.
7. Plastic granules according to claim 1 or 2, characterized in that: the tackifier is a silane coupling agent KH 550.
8. A method for preparing plastic granules according to claim 1 or 2, characterized in that it comprises the following steps:
(1) weighing the regenerated plastic and the polysiloxane according to the parts by weight, grinding into powder, and fully mixing to obtain a base material;
(2) weighing the emulsifier, polyvinylidene chloride, the tackifier and alumina according to the weight parts, controlling the temperature to be 49-78 ℃, and mixing and stirring for 14-32 minutes to obtain a modified material 1;
(3) weighing the plasticizer according to the weight part, controlling the temperature at 69-110 ℃, and mixing and stirring for about 9-25 minutes to obtain a modified material 2;
(4) mixing the base material, the modified material 1 and the modified material 2 obtained in the steps (1), (2) and (3), sequentially and slowly adding an antioxidant and a nucleating agent in the mixing process, controlling the mixing time to be 13-35 minutes, then extruding into granules, and finally obtaining a finished product after cooling and forming.
9. The method for preparing plastic particles as claimed in claim 8, wherein the mixing in step (4) is performed at a speed of 2400-2900 r/m.
10. The method for preparing plastic granules according to claim 8 or 9, wherein the extrusion granulation in step (4) is performed while controlling the extrusion temperature to 145 ℃ to 245 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810928398.3A CN110835470A (en) | 2018-08-15 | 2018-08-15 | Plastic particle and preparation method thereof |
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| CN201810928398.3A CN110835470A (en) | 2018-08-15 | 2018-08-15 | Plastic particle and preparation method thereof |
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| CN110835470A true CN110835470A (en) | 2020-02-25 |
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| CN108003430A (en) * | 2017-12-13 | 2018-05-08 | 徐州傲扬自动化科技有限公司 | A kind of environment-friendly type regeneration plastic grain and preparation method thereof |
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2018
- 2018-08-15 CN CN201810928398.3A patent/CN110835470A/en active Pending
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