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Modifier for regenerating and processing hybrid waste plastic injection part materials and usage method

A technology for processing modifiers and waste plastics, which is applied in the field of waste plastic recycling processing aids, can solve the problems of no substantial improvement in processing methods, poor compatibility, complex components, etc., and achieve increased use value, increased strength, improved compatibility effect

Inactive Publication Date: 2014-03-26
PLASTIC UNION NEW MATERIAL TECH HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex composition of mixed waste plastic injection molding materials, poor compatibility during recycling, and no substantial improvement in processing methods, the defects of traditional waste plastic processing methods are still retained.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The mixed waste plastic injection molded part material recycling processing modifier of the present invention, its raw material formula is represented by weight ratio and includes the following components: maleic anhydride 1; chlorinated polyethylene 2; ethylene·vinyl acetate copolymer 3; benzene Ethylene·butadiene·styrene block copolymer 4; styrene 5, for later use; put the above-mentioned modifier raw material components into a high-speed mixer at a temperature of 110°C and mix evenly, then discharge and cool for later use.

[0014] The using method of modifying agent of the present invention operates according to the following steps:

[0015] (1) Classify the waste mixed plastic injection molded parts to obtain PE, PP and PS, as well as PA, PET, PVC and other mixed waste plastic injection molded parts wool;

[0016] (2) Crush, wash, dehydrate, dry and dehumidify all kinds of mixed waste plastic injection molding materials obtained from the above classification to obt...

Embodiment 2

[0020] This embodiment is basically the same as Embodiment 1, the difference is that:

[0021] The components and parts by weight of the mixed waste plastic injection molded part material recycling processing modifier according to the present invention are: maleic anhydride 2; chlorinated polyethylene 2.5; ethylene-vinyl acetate copolymer 4; styrene-butane ene-styrene block copolymer 5; styrene 6; put the above-mentioned modifier raw material components into a high-speed mixer at a temperature of 120°C and mix them.

[0022] The method of using the modifier of the present invention: (3) The amount of the modified modifier is 4% of the total weight after mixing, and the temperature is raised to 108°C at room temperature; (4) Use a plastic granulator Granulation was carried out under the temperature condition of 215° C., and the granulation time was 16 minutes.

Embodiment 3

[0024] This embodiment is basically the same as Embodiment 1, the difference is that:

[0025] The components and parts by weight of the mixed waste plastic injection molded part material recycling processing modifier according to the present invention are: maleic anhydride 4; chlorinated polyethylene 4.5; ethylene-vinyl acetate copolymer 6; styrene-butane ethylene-styrene block copolymer 7; styrene 7.5; put the above-mentioned modifier raw material components together into a high-speed mixer at a temperature of 118°C for mixing.

[0026] The method of using the modifier of the present invention: (3) The dosage of the modified modifier is 6% of the total weight after mixing, and the temperature is raised to 107°C at room temperature; (4) Use a plastic granulator Granulate under the temperature condition of 170 DEG C, and the granulation time is 20 minutes.

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PUM

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Abstract

The invention discloses a modifier for regenerating and processing hybrid waste plastic injection part materials, wherein the modifier contains the following components by weight: 1-7 parts of maleic anhydride, 2-7 parts of chlorinated polyethylene, 3-9 parts of ethane-vinyl acetate copolymer, 4-10 parts of styrene-butadiene-styrene segmented copolymer, and 5-10 parts of styrene; and a preparation process of the modifier comprises: uniformly mixing the raw materials of the modifier into a high speed mixer, discharging and cooling for standby application. A usage method of the modifier for regenerating and processing hybrid waste plastic injection part materials has the following steps of: (1) classifying the obtained hybrid waste plastic injection part materials; (2) crushing, washing, dehydrating, drying, dehumidifying and detecting the hybrid waste plastic injection part materials; (3) uniformly mixing the modifier for regenerating and processing hybrid waste plastic injection part materials and the hybrid waste material raw materials, heating to generate grafting reaction, and cooling for standby application; and (4) granulating. The modifier has characteristics of simple technology, convenient operation, low cost and no pollution, and can be widely used in a generating and processing field of waste plastic injection parts.

Description

technical field [0001] The invention relates to a recycling processing aid for waste plastics and an application method thereof, in particular to a recycling processing modifier for injection molded parts of mixed waste plastics and a using method thereof. Background technique [0002] As we all know, the traditional method of recycling waste plastics is generally to reheat and plasticize waste plastics to make them enter a viscous flow state and then pelletize them for utilization. Due to the high uneven heating of waste plastics, this method depolymerizes the macromolecular chains, loses some of the original compatibility of waste plastics, and greatly reduces its physical properties, and heating under the condition of moisture will make the plastics Further aging and degradation, therefore, the waste plastic recycled plastic processed by this method is of poor quality. In recent years, although some enterprises and researchers have added modifiers to waste plastics, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/08C08L31/04C08L23/28C08K5/01C08K5/1539C08L23/06C08L23/12C08L25/06C08L77/00C08L67/02C08L27/06B29B9/06
Inventor 邓丽邓军邓忠权陈绪煌
Owner PLASTIC UNION NEW MATERIAL TECH HUBEI
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