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Method for recycling polystyrene shell materials of waste electrical appliances

A technology of waste polystyrene and polystyrene, which is applied in recycling technology, plastic recycling, etc., can solve the problems of low performance of blended modified products, easy delamination of blends, and limited practical application, and achieves improved Tensile strength, reduce white pollution, and expand the effect of application field

Inactive Publication Date: 2012-10-10
TPV DISPLAY TECH (XIAMEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the above recovery method, there are the following problems: 1. The recovery process uses organic solvents, so there are procedures such as solvent recovery, which easily cause secondary pollution; 2. The recovery process is complicated and requires high process equipment; 3. After recovery 4. The performance of the blended modified product is low; 5. The modification cost of the above recovery methods is too high, and the practical application is limited; 6. Due to the maleic anhydride in the recovery process Adding lead to bad smell during the modification process, polluting the environment

Method used

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  • Method for recycling polystyrene shell materials of waste electrical appliances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Weigh each raw material according to the following parts:

[0053] 70 pieces of waste polystyrene shell material;

[0054] Resin raw material HIPS original rice 10 copies;

[0055] Toughening agent methyl methacrylate-butadiene-styrene graft copolymer (MBS) 10 parts;

[0056] 6 parts of reinforced filler nano-montmorillonite;

[0057] 0.1 part of coupling agent KH550;

[0058] Antioxidant 1010 0.5 parts;

[0059] Diffusion agent ethylene bis-stearate (EBS) 1.2 parts;

[0060] Lubricant barium stearate 0.8 part;

[0061] 1 part white oil;

[0062] 2) Add the above raw materials to the high-speed mixer, and mix for 3 minutes to obtain the premix;

[0063] 3) Add the premix obtained in step 2) into a granulator, and granulate at 180-210°C to obtain modified granules;

[0064] 4) The modified pellets obtained in step 3) are put into an injection molding machine to be injected into a test strip.

Embodiment 2

[0066] 1) Weigh each raw material according to the following parts:

[0067] 78 pieces of waste polystyrene shell material;

[0068] Resin raw material K resin: 6 parts;

[0069] Toughening agent styrene-[ethylene-butylene copolymer]-styrene (SEBS) 8 parts;

[0070] 3 parts of reinforcing filler nano calcium carbonate;

[0071]0.8 part of coupling agent KH550;

[0072] Antioxidant 168 0.1 part;

[0073] Diffusion agent polyethylene wax 3 parts;

[0074] 1 part of lubricant sodium stearate;

[0075] 1 part white oil;

[0076] 2) Add the above raw materials to a high-speed mixer, and mix for 5 minutes to obtain a premix;

[0077] 3) Add the premix obtained in step 2) into a granulator, and granulate at 180-210°C to obtain modified granules;

[0078] 4) The modified pellets obtained in step 3) are put into an injection molding machine to be injected into a test strip.

Embodiment 3

[0080] 1) Weigh each raw material according to the following parts:

[0081] 85 pieces of waste polystyrene shell material;

[0082] Resin raw material K resin: 5 parts;

[0083] Toughening agent thermoplastic polyurethane (TPU) 5 parts;

[0084] 2 parts of reinforcing filler talc;

[0085] 0.5 part of coupling agent KH550;

[0086] Antioxidant 2264 0.5 parts;

[0087] Diffusion agent ethylene bis-stearate (EBS) 1 part;

[0088] Lubricant zinc stearate 0.5 part;

[0089] 0.5 part of white oil;

[0090] 2) Add the above raw materials to the high-speed mixer, and mix for 4 minutes to obtain the premix;

[0091] 3) Add the premix obtained in step 2) into a granulator, and granulate at 180-210°C to obtain modified granules;

[0092] 4) The modified pellets obtained in step 3) are put into an injection molding machine to be injected into a test strip.

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Abstract

The invention discloses a method for recycling polystyrene shell materials of waste electrical appliances. The method comprises the following steps of: 1) weighing waste polystyrene shell materials and other raw materials according to a formula; 2) adding the raw materials into a high-speed mixing machine and mixing for 3 to 5 minutes to obtain premix; 3) adding the premix obtained in the step 2) into a granulator and granulating at the temperature of between 180 and 210 DEG C to obtain modified particles; and 4) feeding the modified particles obtained in the step 3) into an injection molding machine and performing injection molding. Equipment used by the method for recycling the polystyrene shell materials and the process are simple, and secondary pollution is avoided; the adding amount of flexibilizer is reduced, so that the processability of the materials is improved, and the modification cost is reduced; according to the formula of the method for recycling the polystyrene shell materials, additives which are strong in volatility and have peculiar smell are avoided, and working environment is improved; and the performance of the modified product is improved, the application field of the modified particles is widened, the white pollution is reduced, and environment is protected.

Description

technical field [0001] The invention relates to a method for recycling polystyrene shell materials, in particular to a method for recycling polystyrene (PS) shell materials of waste household appliances. Background technique [0002] At present, the polystyrene (PS) shell materials of waste household appliances generally have the following recycling methods: 1. Recycling to make coatings; 2. Recycling to make adhesives; 3. Cracking into styrene monomers and lower alkanes, and then making derivatives Products, such as: styrene monomer to re-synthesize polystyrene, making flocculants, etc.; 4. After crushing, it is mixed with cement to make light-weight building materials; Using the above recovery method, there are the following problems: 1. Since organic solvents are used in the recovery process, there are procedures such as solvent recovery, which are likely to cause secondary pollution; 2. The recovery process is complex and requires high process equipment; 3. After recover...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L51/04C08L53/02C08L51/00C08L9/02C08L23/08C08L31/04C08L75/04C08K13/02C08K3/34C08K3/26C08K5/134C08K5/526C08K5/13C08K5/098C08J11/06
CPCY02W30/62
Inventor 张永伟
Owner TPV DISPLAY TECH (XIAMEN) CO LTD
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