CN114456482A - Wear-resistant high-elasticity regenerated EVA (ethylene-vinyl acetate) particles and production process thereof - Google Patents
Wear-resistant high-elasticity regenerated EVA (ethylene-vinyl acetate) particles and production process thereof Download PDFInfo
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- 239000002245 particle Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract description 64
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract description 64
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title description 57
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 239000005060 rubber Substances 0.000 claims abstract description 29
- 239000000314 lubricant Substances 0.000 claims abstract description 28
- 239000012745 toughening agent Substances 0.000 claims abstract description 28
- 239000010445 mica Substances 0.000 claims abstract description 26
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 26
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 20
- 239000004088 foaming agent Substances 0.000 claims abstract description 19
- -1 compatibilizer Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims description 53
- 239000013543 active substance Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- JEHFRMABGJJCPF-UHFFFAOYSA-N 2-methylprop-2-enoyl isocyanate Chemical group CC(=C)C(=O)N=C=O JEHFRMABGJJCPF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000012190 activator Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000004956 cell adhesive effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
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Abstract
The invention relates to the field of regenerated EVA (ethylene-vinyl acetate copolymer), in particular to a wear-resistant high-elasticity regenerated EVA particle and a production process thereof. The invention aims to solve the technical problem of providing regenerated EVA particles which can reduce the production cost and the pollution to the environment, and the produced rubber and plastic product has excellent wear resistance and elasticity. A regenerated antiwear high-elasticity EVA particle is prepared from EVA plastics, NR rubber, polyolefin elastomer, mica powder, antiwear agent, compatibilizer, activator, lubricant, cross-linking agent, foaming agent and toughening agent. The invention reduces the production cost and the environmental pollution, and the produced rubber and plastic product has excellent wear resistance and elasticity.
Description
Technical Field
The invention relates to the field of regenerated EVA (ethylene-vinyl acetate copolymer), in particular to a wear-resistant high-elasticity regenerated EVA particle and a production process thereof.
Background
EVA is an elastomer obtained by copolymerizing ethylene monomer and vinyl acetate monomer, and various processing methods can be used for EVA, such as extrusion, injection, blow molding, etc., since EVA is nontoxic, odorless, and has good mechanical properties, it has a wide application range.
The annual market consumption of EVA materials is increasing, and the EVA materials are particularly applied to shoe soles and interior materials of medium-high-grade travel shoes, climbing shoes, slippers and sandals in the shoe manufacturing industry. The EVA material is widely applied to the field of new energy resources, such as photovoltaic materials, solar cell adhesives and the like, with the wide application of the EVA material, a large amount of waste EVA becomes solid waste, such as waste shoes, every year, and if the EVA waste is directly discarded, huge environmental burden is brought; and resources are wasted, and if the EVA waste is recycled, not only can the productivity be enhanced, the economic benefit be increased, but also the environmental burden is reduced, so that the development of regenerated EVA particles which can reduce the production cost and reduce the environmental pollution, and the produced rubber and plastic products have excellent wear resistance and elasticity is urgently needed.
Disclosure of Invention
In order to overcome the defect that a large amount of waste EVA becomes solid waste, such as waste shoes, if the EVA waste is directly discarded, huge environmental burden is brought; the invention also provides a method for preparing the regenerated EVA particles, which has the advantages of reducing production cost and environmental pollution, and the produced rubber and plastic products have excellent wear resistance and elasticity.
The invention is achieved by the following specific technical means:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 60-80 parts of EVA plastic, 5-10 parts of NR rubber, 5-10 parts of polyolefin elastomer, 3-5 parts of mica powder, 5-7 parts of wear-resisting agent, 1-2.5 parts of compatilizer, 2-5 parts of active agent, 2-4 parts of lubricant, 1.6-2 parts of cross-linking agent, 1.5-2 parts of foaming agent and 1-2 parts of toughening agent.
Further, the wear-resisting agent is a polytetrafluoroethylene and styrene butadiene rubber composite solid material.
Further, the compatilizer is grafted by maleic anhydride.
Further, the active agent is Zn 0.
Further, the lubricant is glycerin or polyethylene wax.
Further, the crosslinking agent is methacryloyl isocyanate and a vulcanizing agent DCP, and the mass ratio of the crosslinking agent to the vulcanizing agent DCP is 1: 0.26-0.32.
Further, the blowing agent is an AC blowing agent.
Further, the toughening agent is chlorinated polyethylene.
Further, the wear-resistant high-elasticity regenerated EVA particles and the production process thereof are characterized by comprising the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 70-80 ℃ for 5-10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and are stirred and mixed by a stirrer for 3-5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resistant agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15-20min when the temperature reaches the temperature of 110-125 ℃, and carrying out material stirring once every 3-5 min; and adjusting the banburying temperature to 90-100 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 6-8min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
Compared with the prior art, the invention has the following beneficial effects:
the method not only can realize the recycling of waste resources, reduce the pollution to the environment and reduce the production cost, but also can prepare the wear-resistant high-elasticity granular rubber-plastic material which has excellent wear resistance and high elasticity, is particularly suitable for being applied to the aspects of soles and the like, and has good comfort and long service life.
Drawings
Fig. 1 is a graph 1 comparing the properties of the materials of the present invention.
Detailed Description
The wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 60-80 parts of EVA plastic, 5-10 parts of NR rubber, 5-10 parts of polyolefin elastomer, 3-5 parts of mica powder, 5-7 parts of wear-resisting agent, 1-2.5 parts of compatilizer, 2-5 parts of active agent, 2-4 parts of lubricant, 1.6-2 parts of cross-linking agent, 1.5-2 parts of foaming agent and 1-2 parts of toughening agent.
A wear-resistant high-elasticity regenerated EVA particle and a production process thereof comprise the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 70-80 ℃ for 5-10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and are stirred and mixed by a stirrer for 3-5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resistant agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15-20min when the temperature reaches the temperature of 110-125 ℃, and carrying out material stirring once every 3-5 min; and adjusting the banburying temperature to 90-100 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 6-8min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The first embodiment is as follows:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 60 parts of EVA plastic, 10 parts of NR rubber, 10 parts of polyolefin elastomer, 5 parts of mica powder, 5 parts of wear-resisting agent, 2 parts of compatilizer, 2 parts of active agent, 2 parts of lubricant, 1.6 parts of cross-linking agent, 1.5 parts of foaming agent and 1 part of toughening agent.
The preparation process comprises the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 70 ℃ for 5 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and stirring and mixing are carried out by a stirrer for 3 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resisting agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15min when the temperature reaches 110 ℃, and carrying out material turning once every 3 min; and adjusting the banburying temperature to 90 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 6min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The properties of the material obtained are shown in Table 1
Example two:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 65 parts of EVA plastic, 10 parts of NR rubber, 5 parts of polyolefin elastomer, 5 parts of mica powder, 5 parts of wear-resisting agent, 1.5 parts of compatilizer, 2.5 parts of active agent, 2.8 parts of lubricant, 1.7 parts of crosslinking agent, 1.6 parts of foaming agent and 1.5 parts of toughening agent.
The preparation process comprises the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 70 ℃ for 10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and stirring and mixing are carried out by a stirrer for 5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resisting agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15min when the temperature reaches 115 ℃, and carrying out material turning once every 3 min; and adjusting the banburying temperature to 95 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 6min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The properties of the material obtained are shown in Table 1.
Example three:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 70 parts of EVA plastic, 5 parts of NR rubber, 5 parts of polyolefin elastomer, 4 parts of mica powder, 6 parts of wear-resisting agent, 1.8 parts of compatilizer, 3 parts of active agent, 2.9 parts of lubricant, 1.8 parts of cross-linking agent, 2 parts of foaming agent and 1.7 parts of toughening agent:
the preparation process comprises the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at 75 ℃ for 10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and stirring and mixing are carried out by a stirrer for 5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resisting agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 16min when the temperature reaches 120 ℃, and carrying out material turning once every 4 min; and adjusting the banburying temperature to 97 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 7min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The properties of the material obtained are shown in Table 1.
Example four:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 75 parts of EVA plastic, 6 parts of NR rubber, 6 parts of polyolefin elastomer, 4.5 parts of mica powder, 6.4 parts of wear-resisting agent, 2 parts of compatilizer, 4 parts of active agent, 3.4 parts of lubricant, 1.9 parts of crosslinking agent, 1.7 parts of foaming agent and 1.9 parts of toughening agent.
The preparation process comprises the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 80 ℃ for 10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and stirring and mixing are carried out by a stirrer for 5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resisting agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15min when the temperature reaches 125 ℃, and carrying out material turning once every 3 min; and adjusting the banburying temperature to 98 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 8min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The properties of the material obtained are shown in Table 1.
Example five:
the wear-resistant high-elasticity regenerated EVA particles are prepared from the following raw materials in parts by weight: 80 parts of EVA plastic, 9 parts of NR rubber, 8 parts of polyolefin elastomer, 3 parts of mica powder, 5 parts of wear-resisting agent, 1.3 parts of compatilizer, 2.1 parts of active agent, 3.5 parts of lubricant, 2 parts of crosslinking agent, 1.8 parts of foaming agent and 2 parts of toughening agent.
The preparation process comprises the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 80 ℃ for 10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and stirring and mixing are carried out by a stirrer for 5 min. A
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resisting agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 20min when the temperature reaches 125 ℃, and carrying out material turning once every 5 min; and adjusting the banburying temperature to 100 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 8min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
The properties of the material obtained are shown in Table 1.
Comparative example one:
the difference from example five is that there is no polyolefin elastomer, and the other is the same as example five.
Comparative example two:
the difference from the fifth embodiment is that there is no mica powder, and the rest is the same as the fifth embodiment.
Comparative example three:
the difference from the fifth embodiment is that no anti-wear agent is used, and the rest is the same as the fifth embodiment
Comparative example four:
the difference from the fifth embodiment is that no lubricant is present, and the rest is the same as the fifth embodiment.
Comparative example five:
the difference from the fifth embodiment is that there is no toughening agent, and the rest is the same as the fifth embodiment.
Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.
Claims (9)
1. The wear-resistant high-elasticity regenerated EVA particle is characterized by being prepared from the following raw materials in parts by weight: 60-80 parts of EVA plastic, 5-10 parts of NR rubber, 5-10 parts of polyolefin elastomer, 3-5 parts of mica powder, 5-7 parts of wear-resisting agent, 1-2.5 parts of compatilizer, 2-5 parts of active agent, 2-4 parts of lubricant, 1.6-2 parts of cross-linking agent, 1.5-2 parts of foaming agent and 1-2 parts of toughening agent.
2. The regenerative EVA particles with wear resistance and high elasticity of claim 1, wherein the wear-resistant agent is a composite solid material of polytetrafluoroethylene and styrene butadiene rubber.
3. The wear-resistant highly elastic recycled EVA particles of claim 1, wherein the compatibilizer is maleic anhydride grafted.
4. The wear-resistant highly elastic recycled EVA particles of claim 1, wherein the active agent is Zn 0.
5. The wear-resistant highly elastic recycled EVA particles of claim 1, wherein the lubricant is glycerin or polyethylene wax.
6. The wear-resistant high-elasticity regenerated EVA particles of claim 1, wherein the cross-linking agent is methacryloyl isocyanate and vulcanizing agent DCP, and the mass ratio of the methacryloyl isocyanate to the vulcanizing agent DCP is 1: 0.26-0.32.
7. The abrasion-resistant highly elastic recycled EVA particles of claim 1, wherein the foaming agent is an AC foaming agent.
8. The wear-resistant high-elasticity regenerated EVA particles of claim 1, wherein the toughening agent is chlorinated polyethylene.
9. The wear-resistant high-elasticity regenerated EVA particle and the production process thereof according to claim 1, wherein the wear-resistant high-elasticity regenerated EVA particle and the production process thereof comprise the following steps:
1) and weighing the raw materials of the wear-resistant high-elasticity regenerated EVA particles according to the parts by weight.
2) Preheating and drying the EVA plastic, the NR rubber and the polyolefin elastomer at the preheating temperature of 70-80 ℃ for 5-10 min.
3) After preheating, mica powder, a wear-resisting agent, a compatilizer, an active agent, a lubricant and a toughening agent are added, and are stirred and mixed by a stirrer for 3-5 min.
4) After mixing, introducing the mixture of EVA plastic, NR rubber, polyolefin elastomer, mica powder, wear-resistant agent, compatilizer, active agent, lubricant and toughening agent into an internal mixer for mixing, carrying out heat preservation and internal mixing, continuing mixing for 15-20min when the temperature reaches the temperature of 110-125 ℃, and carrying out material stirring once every 3-5 min; and adjusting the banburying temperature to 90-100 ℃ during the last turn-over, adding the cross-linking agent and the foaming agent into the banbury mixer, fully and uniformly mixing, and keeping for 6-8min to obtain a mixture.
5) After the internal mixing is finished, the mixture is led out of a granulator, and the granulation is cooled.
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| CN101805475A (en) * | 2010-04-26 | 2010-08-18 | 泰亚鞋业股份有限公司 | Formula of soles of PU-simulated foaming sneakers through injection and manufacturing method |
| CN103242584A (en) * | 2013-04-27 | 2013-08-14 | 上虞市佳华高分子材料有限公司 | Wear-resistant EVA (Ethylene-Vinyl-Acetate) sole material |
| CN113308044A (en) * | 2021-06-23 | 2021-08-27 | 上高远大化纤有限公司 | Method for preparing light high-elastic wear-resistant rubber and plastic material by utilizing regenerated EVA |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805475A (en) * | 2010-04-26 | 2010-08-18 | 泰亚鞋业股份有限公司 | Formula of soles of PU-simulated foaming sneakers through injection and manufacturing method |
| CN103242584A (en) * | 2013-04-27 | 2013-08-14 | 上虞市佳华高分子材料有限公司 | Wear-resistant EVA (Ethylene-Vinyl-Acetate) sole material |
| CN113308044A (en) * | 2021-06-23 | 2021-08-27 | 上高远大化纤有限公司 | Method for preparing light high-elastic wear-resistant rubber and plastic material by utilizing regenerated EVA |
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