Manufacture method for flame-retardant heat-insulation acrylic sheet

An acrylic sheet, heating and polymerization technology, applied in the field of plastic casting sheet, can solve the problem that the total utilization rate of fly ash is not enough, and achieve the effect of increasing the utilization rate of waste, high surface hardness and gloss, easy molding and processing

Inactive Publication Date: 2011-09-21
SHAANXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current total utilization rate of fly ash in China is less than 50% of the annual emissions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Preparation of plexiglass prepolymer

[0023] First, 100 grams of methyl methacrylate and 0.3 grams of dibenzoyl peroxide were mixed evenly, then heated and polymerized in a water bath at 80°C for 35 minutes, and finally cooled rapidly to room temperature to obtain a viscous plexiglass prepolymer;

[0024] 2) Preparation of mixed slurry

[0025] Under the action of mechanical stirring, get 100 gram organic glass prepolymers, 60 gram particle size and be 40-80 purpose thermal power plant waste coal ash, 20 gram dry particle size be 200-400 purpose flame retardant magnesium hydroxide, Mix evenly with 0.4 gram of defoamer organosilicon monomer to obtain mixed slurry;

[0026] 3) Pour the mixed slurry into the mold and let it stand at room temperature for 20 minutes, then place the mold in an oven, and use an air bath to heat and polymerize;

[0027] The air bath heating polymerization is carried out according to the following steps: polymerization at 40°C for 3.5 hour...

Embodiment 2

[0030] 1) Preparation of plexiglass prepolymer

[0031] First, 100 grams of methyl methacrylate and 0.4 grams of dibenzoyl peroxide were mixed evenly, then heated and polymerized in a water bath at 83°C for 30 minutes, and finally cooled rapidly to room temperature to obtain a viscous plexiglass prepolymer;

[0032] 2) Preparation of mixed slurry

[0033] Under mechanical stirring, take 100 grams of plexiglass prepolymer, 70 grams of particle size of 40-80 purpose thermal power plant waste fly ash, 3 grams of coloring pigment iron oxide red, 25 grams of dry particle size of 200-400 The purpose flame retardant aluminum hydroxide and 0.5 gram of defoamer silicone oil are mixed uniformly to obtain a mixed slurry;

[0034] 3) Pour the mixed slurry into the mold and let it stand at room temperature for 30 minutes, then place the mold in an oven, and use an air bath to heat and polymerize;

[0035] The air-bath heating polymerization is carried out according to the following steps...

Embodiment 3

[0038] 1) Preparation of plexiglass prepolymer

[0039] First, mix 100 grams of methyl methacrylate and 0.5 grams of dibenzoyl peroxide evenly, then heat and polymerize in a water bath at 85°C for 25 minutes, and finally cool rapidly to room temperature to obtain a viscous plexiglass prepolymer;

[0040] 2) Preparation of mixed slurry

[0041] Under mechanical stirring, take 100 grams of plexiglass prepolymer, 80 grams of coal-fired power plant waste fly ash with a particle size of 40-80, 5 grams of coloring pigment iron oxide blue, and 30 grams of dry particle size of 200-400 Purpose Flame retardant magnesium hydroxide and 0.6 gram of defoamer silicone oil are mixed uniformly to obtain mixed slurry;

[0042] 3) Pour the mixed slurry into the mold and let it stand at room temperature for 25 minutes, then place the mold in an oven, and use an air bath to heat and polymerize;

[0043] The air bath heating polymerization is carried out according to the following steps: polymeri...

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Abstract

The invention relates to a manufacture method for a flame-retardant heat-insulation acrylic sheet. The flame-retardant heat-insulation acrylic sheet provided by the invention is manufactured from the following raw materials in a proportion by weight: 100 g of organic glass prepolymer, 60-80 g of wastes generated from a heat power plant, 0-5 g of a coloring pigment, 20-30 g of a flame retardant and 0.4-0.6 g of an antifoaming agent through mixing and pouring polymerization. The flame-retardant heat-insulation acrylic sheet provided by the invention has a heat-insulation temperature difference of 15-25 DEG C and a burning scale of FH-3-15 mm/min, and has the characteristics of diverse colors, high surface hardness and glossiness, light weight, easiness in shaping processing and good flame-retardant and heat-insulation effects; and the manufacture method provided by the invention can increase the utilization rate of wastes, reduce environmental pollution and lower production cost, and the flame-retardant heat-insulation acrylic sheet provided by the invention can be widely applied in building and house decoration industries.

Description

technical field [0001] The invention belongs to plastic casting plates, in particular to a preparation method of a flame-retardant and heat-insulating acrylic plate. Background technique [0002] In the 1970s, the global energy crisis, environmental pollution and the depletion of mineral resources strongly stimulated the research and development of fly ash utilization, and the resource utilization of fly ash has always been a matter of great concern to governments, experts and scholars all over the world. , Fly ash has become an eye-catching new building material raw material and chemical product raw material in the international market, which is rich in resources, low in price, and beneficial in eliminating harm. According to relevant data, the total stock of fly ash discharged in China has exceeded 1 billion tons, and it is increasing at a rate of 120 million tons per year. On September 15, 2010, the international environmental protection organization Greenpeace released ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L83/04C08K3/22C08K7/22C08K5/54C08F120/14
Inventor 袁新强张营堂顾艳聂小溪李东杉龙乔石付蕾
Owner SHAANXI UNIV OF TECH
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