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Lightweight decorative acrylic sheet and its preparation method

An acrylic sheet, light-weight technology, applied in the field of plastic foam sheet, can solve the problems of low energy consumption for dissolving and recycling, serious environmental pollution, high solvent toxicity, etc., to improve waste utilization rate, short preparation process, easy to obtain raw materials Effect

Active Publication Date: 2013-07-31
ANHUI XINTAO OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although waste plexiglass pyrolysis raw materials are widely recycled, the energy consumption is high
The energy consumption of its dissolution and recovery is low, but the solvent is highly toxic and causes serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Dissolving waste plexiglass powder and ethylene-vinyl acetate copolymer:

[0030] Under mechanical agitation, dissolve 50 parts of waste organic glass powder with 60 parts of methyl methacrylate to obtain slurry A, and dissolve 5 parts of ethylene-vinyl acetate copolymer into slurry B with 40 parts of methyl methacrylate;

[0031] The waste organic glass powder is obtained by washing, drying, crushing, pulverizing the waste organic glass, and passing through a 800-mesh sieve;

[0032] 2) Preparation of mixed slurry:

[0033] Pour slurry B into slurry A and stir evenly to obtain slurry C, add 50 parts of solid waste powder, 20 parts of fly ash-based paraffin composite phase change material, 5 parts of titanium dioxide, 10 parts of Xuetehei Black10C909A, 40 parts of magnesium hydroxide and 1 part of dibenzoyl peroxide were stirred evenly to obtain a high-viscosity slurry D, and 10 parts of absolute ethanol were added to the high-viscosity slurry D, and the mixed slurr...

Embodiment 2

[0040] 1) Dissolving waste plexiglass powder and ethylene-vinyl acetate copolymer:

[0041] Under mechanical agitation, dissolve 60 parts of waste organic glass powder with 50 parts of methyl acrylate to obtain slurry A, and dissolve 15 parts of ethylene-vinyl acetate copolymer to slurry B with 50 parts of methyl acrylate;

[0042] The waste organic glass powder is obtained by washing, drying, crushing, pulverizing the waste organic glass, and passing through a 600-mesh sieve;

[0043] 2) Preparation of mixed slurry:

[0044] Pour slurry B into slurry A and stir evenly to obtain slurry C, add 30 parts of solid waste powder, 15 parts of fly ash-based paraffin composite phase change material, 5 parts of iron oxide red, oxide The mixture of Iron Blue and Schott Black Black10C909A, 50 parts of magnesium hydroxide and 0.8 parts of dibenzoyl peroxide, stir evenly to obtain high-viscosity slurry D, add 2 parts of chloroform to high-viscosity slurry D, and stir well Obtain mixed slu...

Embodiment 3

[0051] 1) Dissolving waste plexiglass powder and ethylene-vinyl acetate copolymer:

[0052] Under mechanical agitation, dissolve 85 parts of waste organic glass powder with the mixed solution of 65 parts of ethyl methacrylate and butyl methacrylate to obtain slurry A, 35 parts of ethyl methacrylate and butyl methacrylate The mixed solution dissolves 10 parts of ethylene-vinyl acetate copolymer into slurry B;

[0053] Wherein the waste and old plexiglass powder is obtained by washing, drying, crushing and pulverizing the waste and old plexiglass, and passing through a 400-mesh sieve;

[0054] 2) Preparation of mixed slurry:

[0055] Pour slurry B into slurry A and stir evenly to obtain slurry C. Add 50 parts of solid waste powder, 25 parts of fly ash-based paraffin wax composite phase change materials, 12 parts of titanium dioxide, Schett The mixture of Black Black10C909A and Schett Green Green187B, 60 parts of magnesium hydroxide and 0.9 part of dibenzoyl peroxide are stirre...

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Abstract

The invention relates to a lightweight decorative acrylic sheet and its preparation method. The method comprises the steps of: dissolving waste organic glass powder by an acrylic acid monomer to obtain a slurry A, dissolving an ethylene-vinyl acetate copolymer by the acrylic acid monomer to obtain a slurry B, pouring the slurry B into the slurry A and stirring them uniformly to obtain a slurry C, then adding solid waste powder, a fly ash based paraffin composite phase change material, a pigment, magnesium hydroxide and dibenzoyl peroxide, stirring them evenly to obtain a hyperviscous slurry D; adding an organic solvent into the hyperviscous slurry D, conducting stirring, then placing the mixture into a steel die, performing cold press molding by a thermocompressor, then implementing heating at 70-80DEG C to carry out polymerization foaming for 2-4h; and conducting cooling and die release to obtain the lightweight decorative acrylic sheet. The method disclosed in the invention makes use of waste to prepare the lightweight decorative acrylic sheet and reduces environmental pollution. The obtained acrylic sheet has small density, high gloss, great hardness, good heat insulation and flame retardant effects and a high additional value, and can be widely applied in construction and decoration industries.

Description

technical field [0001] The invention belongs to the field of plastic foam boards, in particular to a light-weight decorative acrylic board and a preparation method thereof. Background technique [0002] Waste plexiglass mainly comes from unqualified products in production, casting (road) in the molding process, scraps and chips (chips) in machining, etc. In addition, a considerable part comes from the circulation field, for example, in a car In scrapped cars, the quality of plexiglass accounts for about 30% of the non-metallic parts (except tires). Fly ash mainly comes from solid waste discharged from thermal power generation and metallurgical coal combustion. In 1995, the discharge of fly ash reached 125 million tons, in 2000 it was about 150 million tons, in 2009 it was about 375 million tons, and in 2010 it reached 480 million tons. tons, causing enormous pressure on my country's national economic construction and ecological environment, and fly ash pollution has become C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08K3/22C08K7/24C08K7/18C08K5/01C08F291/06C08J9/00
Inventor 袁新强张伟杨晓明董兴轩程润东高聪张阳阳赵红
Owner ANHUI XINTAO OPTOELECTRONICS TECH CO LTD
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