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Waste plastic recycling method

A recycling method and waste plastic technology, applied in the field of waste plastic recycling, to achieve the effect of improving decoration effect, improving application grade and reducing production cost

Inactive Publication Date: 2016-02-10
XIXIANG LINSEN BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to use mixed plastics to produce boards, solve the problem of color consistency on the surface of the boards, and achieve high gloss performance, reduce the pretreatment process of waste plastics, reduce production costs, and improve the decorative effect and grade of use of the boards. Provided a recycling method for waste plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prefabricated surface film-forming tempered glass mold:

[0044] Wash the tempered glass with alkaline water and clear water for 3 times until there are no stains or traces, then dry it at 100°C for later use; use electric welding to bond PVC strips, and place it in the tempered glass to form a square cavity; add 4 parts of PS Diffusion agent and 0.08 parts of dibenzoyl peroxide are dissolved in 100 parts of polymethyl methacrylate prepolymer, then add 7 parts of pigment (common coloring pigment and near-infrared reflective pigment Black is mixed according to the ratio of 1:1) to obtain a mixed slurry by grinding, and then add 0.1 part of N, N-dimethylaniline to the mixed slurry to obtain a pre-filmed slurry; flow-coat the pre-filmed slurry to the belt In the tempered glass with square PVC adhesive strips, flow coat twice, let it stand at room temperature for 3 hours, and form a 400μm dry film; close the upper template and upper fixture, and you are done.

[0045] Rec...

Embodiment 2

[0048] Prefabricated surface film-forming tempered glass mold:

[0049]Wash the tempered glass with alkaline water and clear water for 4 times until there are no stains or traces, and dry it at 100°C for later use; use electric welding to bond PVC adhesive strips, and place it in the tempered glass to form a square cavity; add 5 parts of PS Diffusion agent and 0.05 parts of dibenzoyl peroxide are dissolved in 100 parts of polymethyl methacrylate prepolymer, and then 5 parts of pigment are added (common coloring pigment and near-infrared reflective pigment Dynamix Green 30C612 are mixed in a ratio of 1:1) After grinding to obtain a mixed slurry, add 0.05 parts of N,N-dimethylaniline to the mixed slurry to obtain a pre-filmed slurry; flow-coat the pre-filmed slurry onto tempered glass with square PVC strips Inside, flow coat once, and let it stand at room temperature for 2 hours to form a 200μm dry film; close the upper template and upper fixture, and you are done.

[0050] Rec...

Embodiment 3

[0053] Prefabricated surface film-forming tempered glass mold:

[0054] Wash the tempered glass twice with alkaline water and clear water until there are no stains or traces, and dry it at 100°C for later use; use electric welding to bond PVC strips, and place it in the tempered glass to form a square cavity; add 1 part of PS Diffusion agent and 0.15 parts of dibenzoyl peroxide are dissolved in 100 parts of polymethyl methacrylate prepolymer, then add 10 parts of pigments (common coloring pigments and near-infrared reflective pigments Black is mixed according to the ratio of 1:1) to obtain a mixed slurry by grinding, and then add 0.15 parts of N, N-dimethylaniline to the mixed slurry to obtain a pre-film-forming slurry; flow-coat the pre-film-forming slurry to the In the tempered glass with square PVC adhesive strips, flow coat it twice, and let it stand at room temperature for 4 hours to form a 500μm dry film; close the upper template and upper fixture, and you are done.

...

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PUM

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Abstract

The invention discloses a waste plastic recycling method. The waste plastic recycling method comprises the steps that waste plastic is subjected to the procedures of washing, drying, crushing, grinding and screening and then dissolved in acrylic ester monomers, a proper amount of packing, a reinforcing and toughening agent, Mg(OH)2 fire retardant, a small amount of an organic peroxy initiating agent, a small amount of an N,N tertiary amine organic compound and the like are added, the mixture is mixed, degassed and poured into a tempered glass die with a membrane formed on the surface in advance, a blank is subjected to exhausting and dimension deducting and then subjected to still standing at the room temperature to be solidified and formed, and finally a plastic board is obtained through high-temperature treatment, cooling, releasing and other procedures. According to the method, the waste plastic recycling technology is simple, the developed plastic board is good in surface decorating effect, free of the influences of types and colors of the waste plastic and capable of replacing a wood-plastic composite to be applied, and the application grade is increased; the plastic board can replace an acrylic face plate to lower the production cost and can replace a common plastic board to improve the decorating effect.

Description

technical field [0001] The invention relates to the field of recycling waste plastics, in particular to a method for recycling waste plastics. Background technique [0002] At present, the resource recovery and reuse technology of waste plastics has attracted more and more attention. It includes the recovery and reuse technology of mixed waste plastics and single species of waste plastics. Among them, the recovery and reuse technology of mixed waste plastics includes dissolving and preparing coatings and adhesives, pyrolysis oil, incineration and power generation, etc.; the recovery and reuse technologies of single-type waste plastics include mechanical blending, solvent dissolution and thermal Coatings, adhesives and sheets are produced by melting processing. Especially for the production of boards, it is necessary to sort waste plastics, which is very complicated; if mixed waste plastics are used to produce boards, there are problems of different colors and properties, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L23/08C08L25/12C08L77/00C08K13/02C08K3/22C08K5/14C08K5/18C08F291/00C09D133/12C09D7/12B29B17/00C08L97/02
CPCY02W30/62
Inventor 袁新强冯小明王可祝媛李研刘维兵郑凯曾怡
Owner XIXIANG LINSEN BUILDING MATERIALS
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