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Method for mfg. low pressure heat-shrinkable material using waste plastics

A waste plastic, heat shrinking technology, applied in the field of environmental protection, can solve the problems of high raw material and product prices, complex preparation methods, low technical level, etc., achieve high added value, simple preparation process and equipment, and solve the effect of polluting the environment

Inactive Publication Date: 2003-03-12
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] According to the content of the above patents, most of the waste plastics are used to make composite materials such as plastic wood and produce lubricating oil, gasoline, diesel oil, etc. after pyrolysis, which not only has a low technical level and consumes a lot of energy, but also easily causes secondary pollution. The invention of materials is to make films, devices, etc., the price of raw materials and products is high, and the preparation method is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for manufacturing low-pressure heat-shrinkable materials from waste plastics, which is made of the following components in percentage by weight:

[0038] Plastic waste 20

[0039] Linear Low Density Polyethylene (LLDPE) 20

[0040] Ethylene-vinyl acetate copolymer (EVA) 25

[0041] Zinc stearate 5

[0042] carbon black 10

[0043] Aluminum hydroxide 5

[0044] Silane coupling agent 1

[0045] Flame retardant FR-E 10

[0046] Antioxidant 1010 2

[0047] Light aging agent GW-540 2

[0048] Weigh the materials according to the above formula, first wash and granulate the waste plastics, then add vinyltriethoxysilane coupling agent at room temperature, and mix evenly in a high-speed mixer at a speed of 900 rpm. Put the waste plastics mixed with the coupling agent into the internal mixer according to different formulations, linear low density polyethylene (LLDPE), and ethylene-vinyl acetate copolymer (EVA), and mix them at a temp...

Embodiment 2

[0050] A method for manufacturing low-pressure heat-shrinkable materials from waste plastics, which is made of the following components in percentage by weight:

[0051] Waste plastic 40

[0052] Linear Low Density Polyethylene (LLDPE) 10

[0053] Ethylene-vinyl acetate copolymer (EVA) 5

[0054]EPDM 12

[0055] carbon black 5

[0056] Aluminum hydroxide 10

[0057] Silane coupling agent 2

[0058] Flame retardant FR-E 13

[0059] Light aging agent GW-540 3

[0060] Weigh the materials according to the above formula, first wash and granulate the waste plastics, then add vinyltriethoxysilane coupling agent at room temperature, and mix evenly in a high-speed mixer at a speed of 1000 rpm. Put the waste plastic mixed with the coupling agent into the internal mixer according to different formulations, linear low-density polyethylene (LLDPE) and EPDM rubber. The temperature is 155°C, mix for 5-10 minutes, and then sequentially Add additives such as al...

Embodiment 3

[0062] A method for manufacturing low-pressure heat-shrinkable materials from waste plastics, which is made of the following components in percentage by weight:

[0063] Waste plastic 30

[0064] Linear Low Density Polyethylene (LLDPE) 5

[0065] Ethylene-vinyl acetate copolymer (EVA) 20

[0066] Chlorosulfonated polyethylene (CPE) 15

[0067] Zinc stearate 8

[0068] carbon black 15

[0069] Silane coupling agent 2

[0070] Flame retardant FR-E 5

[0071] Weigh the materials according to the above formula, first wash and granulate the waste plastics, then add vinyltriethoxysilane coupling agent at room temperature, and mix evenly in a high-speed mixer at a speed of 1200 rpm. Put the waste plastic mixed with coupling agent into the internal mixer according to different formulations and blend with linear low density polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA) and chlorosulfonated polyethylene (CPE) , the temperature is 150°C, mix ...

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Abstract

A low-pressure thermoshrinking material is prepared from waste plastics, LLDPE, EVA, EPT rubber, chlorosulfonated polyethylene, zinc stearate, carbon black, aluminium hydroxide, silane coupling agent, flame-retarding agent FR-E, antioxidant 1010 and light-resisting ageing agent Gw-540.1 through mixing and cross linking.

Description

Technical field: [0001] The invention belongs to the environmental protection technology for recycling and reusing waste plastics, and in particular relates to a method for manufacturing low-pressure heat-shrinkable materials from waste plastics. Background technique: [0002] As we all know, plastic has become an important part of human life, and its use is increasing day by day, so the amount of waste plastic is also increasing day by day. A large amount of waste plastics has constituted a serious threat to the human living environment, and the recycling and reuse of waste plastics is a cause that turns waste into wealth and benefits mankind. At present, the recycling and reuse of waste plastics in my country is not ideal. Most of them are simply used, with low technical level and lack of market competitiveness. No report consistent with the formula, process and use of the material of the present invention has been found through data and patent searches. , the related pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/24C08K5/54C08L23/04C08L101/00
Inventor 张万喜孙国恩张长春李笑明迟剑锋
Owner JILIN UNIV
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