Method for preparing high-strength heat-preservation wallboard

A thermal insulation wall panel, high-strength technology, used in building components, building materials, buildings, etc., can solve the problems of insufficient thermal insulation and low strength, and achieve good thermal insulation effect, less environmental pollution, and light weight.

Inactive Publication Date: 2018-09-28
安徽臻烁新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the insulation materials used in buildings have the disadvantages of low strength and insufficient insulation performance, which need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method for a high-strength thermal insulation wallboard, comprising the steps of:

[0019] S1, mix 5kg xanthan gum, 30kg expanded perlite, 50kg concentration of 6wt% hydrogen peroxide solution, filter, adjust the system to be neutral, add 0.1kg ammonium persulfate, 0.09kg sodium bisulfite and stir for 10min under nitrogen protection, Add 2 kg of acrylamide and stir for 2 hours, precipitate with acetone, and dry to obtain the prefabricated material;

[0020] S2. Stir 100kg of cement, 20kg of prefabricated materials, 40kg of polyurethane emulsion, 10kg of nylon fiber, 23kg of coal gangue, and 2kg of glutinous rice flour for 6 minutes at a stirring speed of 100r / min, pressing for 40s at a pressing pressure of 2MPa, and pressing again for 2 minutes after shaking, then Steam curing for 10 hours, the temperature of steam curing is 100°C, and natural drying for 40 hours to obtain high-strength thermal insulation wallboard.

Embodiment 2

[0022] A preparation method for a high-strength thermal insulation wallboard, comprising the steps of:

[0023] S1, mix 10kg xanthan gum, 20kg expanded perlite, and 100kg concentration of 2wt% hydrogen peroxide solution evenly, filter, adjust the system to be neutral, add 0.2kg ammonium persulfate and 0.05kg sodium bisulfite under nitrogen protection and stir for 20min, Add 1 kg of acrylamide and stir for 4 hours, precipitate with acetone, and dry to obtain the prefabricated material;

[0024] S2. Stir 50kg of cement, 40kg of prefabricated materials, 20kg of polyurethane emulsion, 20kg of nylon fiber, 15kg of coal gangue, and 10kg of glutinous rice flour for 2 minutes at a stirring speed of 150 r / min, pressing for 20 seconds at a pressing pressure of 5 MPa, pressing again for 1 minute after shaking, and then Steam curing for 20 hours at a temperature of 90°C, and natural drying for 100 hours to obtain high-strength thermal insulation wallboards.

Embodiment 3

[0026] A preparation method for a high-strength thermal insulation wallboard, comprising the steps of:

[0027] S1, mix 6kg xanthan gum, 28kg expanded perlite, and 60kg concentration of 5wt% hydrogen peroxide solution evenly, filter, adjust the system to be neutral, add 0.12kg ammonium persulfate and 0.08kg sodium bisulfite under nitrogen protection and stir for 12min, Add 1.7 kg of acrylamide and stir for 2.5 hours, precipitate with acetone, and dry to obtain the prefabricated material;

[0028] S2. Stir 80kg of cement, 25kg of prefabricated materials, 35kg of polyurethane emulsion, 12kg of nylon fiber, 20kg of coal gangue, and 4kg of glutinous rice flour for 5 minutes at a stirring speed of 120r / min, press for 35s, and press at a pressure of 3MPa, and press again for 1.8min after shaking. Then steam curing for 12 hours, the temperature of steam curing is 98°C, and it is naturally dried for 60 hours to obtain a high-strength thermal insulation wallboard.

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Abstract

The invention discloses a method for preparing a high-strength heat-preservation wallboard. The method comprises the following steps that xanthan gum, expanded perlite and a hydrogen peroxide aqueoussolution are uniformly mixed and filtered, a system is adjusted to be neutral, ammonium persulfate and sodium bisulfite are added and stirred under the protection of nitrogen, acrylamide is added andstirred, and precipitating and drying are conducted to obtain a prefabricated material; cement, the prefabricated material, a polyurethane emulsion, nylon fibers, coal gangue and glutinous rice flourare stirred, pressed, shaken and then pressed, and then steam maintenance and natural airing are conducted to obtain the high-strength heat-preservation wallboard, wherein the weight ratio of the cement, the prefabricated material, the polyurethane emulsion, the nylon fibers, the coal gangue and the glutinous rice flour is (50-100):(20-40):(20-40):(10-20):(15-23):(2-10). The obtained heat-preservation wallboard has high compressive strength and flexural strength, low heat transfer coefficient and excellent heat preservation performance.

Description

technical field [0001] The invention relates to the technical field of thermal insulation wallboards, in particular to a preparation method of high-strength thermal insulation wallboards. Background technique [0002] Building energy conservation is an important part of my country's energy conservation work. There are many kinds of external insulation materials used for building exterior walls, including inorganic materials, organic materials, and composite materials. With the vigorous development of the construction industry, the continuous depletion of energy, and the impact of global warming, reducing building energy consumption and improving energy utilization have attracted the attention and attention of the whole society. At present, the insulation materials used in buildings have the disadvantages of low strength and insufficient insulation performance, which need to be improved. Contents of the invention [0003] Based on the technical problems existing in the bac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02E04C2/04
CPCC04B28/02C04B2201/20C04B2201/32C04B2201/50E04C2/044C04B24/38C04B14/185C04B22/068C04B22/14C04B24/124C04B24/282C04B16/0691C04B18/12
Inventor 张绪恕
Owner 安徽臻烁新材料技术有限公司
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