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Preparation method of high-water-resistance gypsum-based thermal insulation composite board

A thermal insulation composite, gypsum-based technology, applied in the field of building materials, can solve the problems of easy moisture deformation, strong water absorption, etc., to achieve the effects of reducing water absorption, firm adsorption, and improving compressive strength

Inactive Publication Date: 2020-02-18
苏木兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that gypsum materials have strong water absorption and are easily deformed by moisture, a preparation method of high water-resistant gypsum-based thermal insulation composite board is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In parts by weight, weigh 30 parts of styrene, 36 parts of acrylic acid, 24 parts of butyl acrylate, 18 parts of methyl methacrylate, 6 parts of bisphenol A epoxy resin, 1.2 parts of nonylphenol polyoxyethylene Ether, 0.6 parts of sodium lauryl sulfate, 0.3 parts of sodium persulfate, 15 parts of sodium carbonate, 6 parts of glycerin, 60 parts of deionized water, adding nonylphenol polyoxyethylene ether and sodium lauryl sulfate 1 / 2 part by weight of deionized water was stirred at 120r / min for 10min at normal temperature to obtain an emulsifier solution. Styrene, acrylic acid, butyl acrylate and methyl methacrylate were added to the emulsifier solution, and stirred at 180r / min at normal temperature Stir at a speed of 160r / min for 300min to obtain a pre-emulsion, add sodium persulfate to 1 / 4 parts by weight of deionized water, and stir at a speed of 160r / min for 10min at room temperature to obtain an initiator solution, add sodium carbonate to the remaining 1 / 4 parts by w...

Embodiment 2

[0039] In parts by weight, weigh 35 parts of styrene, 42 parts of acrylic acid, 28 parts of butyl acrylate, 21 parts of methyl methacrylate, 7 parts of bisphenol A epoxy resin, 1.4 parts of nonylphenol polyoxyethylene Ether, 0.7 parts of sodium lauryl sulfate, 0.35 parts of sodium persulfate, 17.5 parts of sodium carbonate, 7 parts of glycerin, 70 parts of deionized water, nonylphenol polyoxyethylene ether, sodium lauryl sulfate 1 / 2 part by weight of deionized water was stirred at 140r / min for 12.5min at normal temperature to obtain an emulsifier solution. Styrene, acrylic acid, butyl acrylate and methyl methacrylate were added to the emulsifier solution. Stir at a speed of 190r / min for 35min to obtain a pre-emulsion, add sodium persulfate to 1 / 4 weight part of deionized water, stir at a speed of 170r / min for 11min at room temperature to obtain an initiator solution, add sodium carbonate to the remaining 1 / 4 weight part of deionized water, stirred at 190r / min for 9min at norma...

Embodiment 3

[0043] In parts by weight, weigh 40 parts of styrene, 48 parts of acrylic acid, 32 parts of butyl acrylate, 24 parts of methyl methacrylate, 8 parts of bisphenol A epoxy resin, 1.6 parts of nonylphenol polyoxyethylene Ether, 0.8 parts of sodium lauryl sulfate, 0.4 parts of sodium persulfate, 20 parts of sodium carbonate, 8 parts of glycerin, 80 parts of deionized water, and nonylphenol polyoxyethylene ether and sodium lauryl sulfate are added 1 / 2 part by weight of deionized water was stirred at 160r / min for 15min at normal temperature to obtain an emulsifier solution. Styrene, acrylic acid, butyl acrylate and methyl methacrylate were added to the emulsifier solution and stirred at 200rpm at normal temperature. Stir at a speed of 180r / min for 40min to obtain a pre-emulsion, add sodium persulfate to 1 / 4 parts by weight of deionized water, and stir at a speed of 180r / min for 12min at room temperature to obtain an initiator solution, add sodium carbonate to the remaining 1 / 4 parts ...

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Abstract

The invention relates to a preparation method of a high- water- resistance gypsum-based thermal insulation composite board and belongs to the technical field of building materials. A high-water-resistance gypsum thermal insulation material is prepared by adding organic silicon modified paraffin emulsion, and the molecular main chain of organic silicon contains Si groups or a silicon-containing compound with certain reaction activity, so that a cross-linked network film structure can be formed in gypsum and can be attached to an internal pore wall to fill the internal defects of the gypsum thermal insulation board; due to the fact that the silicon-containing molecular chain is high in rotational freedom degree and low in surface energy, an organosilicon waterproofing agent is endowed with good hydrophobic performance, and the water absorption rate of the board can be obviously reduced; after paraffin is prepared into the emulsion, the paraffin can be uniformly adsorbed on a plate, so that the waterproof performance is improved.

Description

technical field [0001] The invention relates to a preparation method of a high water-resistant gypsum-based thermal insulation composite board, which belongs to the technical field of building materials. Background technique [0002] Building energy conservation can effectively alleviate the contradiction between urban development and energy shortage, and achieve sustainable economic and social development. One of the effective ways to save energy in buildings is to use building exterior wall insulation materials. Gypsum is used in the field of building materials because of its heat insulation and noise reduction. As a new generation of green and environmentally friendly building materials, the deep processing of gypsum products has attracted the attention of many researchers. Gypsum storage is large and resources are abundant, but most of the materials used are raw materials or primary low-end products, resulting in a large waste of resources. Reasonable and maximum optimiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/26C04B24/42C08F283/10C08F212/08C08F220/06C08F220/18C08F220/14C04B111/27
CPCC04B24/2688C04B28/14C04B40/0039C04B2111/27C08F283/10C04B7/02C04B24/36C04B24/32C04B24/42C04B24/06C04B14/24C04B24/2623C04B2103/302C08F212/08C08F220/06C08F220/14
Inventor 苏木兰陈胜利
Owner 苏木兰
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