Heat-insulation wallboard with low heat transfer coefficient

A heat transfer coefficient and thermal insulation wall panel technology, applied in the field of thermal insulation wall panels, can solve the problems of low strength and insufficient thermal insulation, and achieve the effects of low environmental pollution, good thermal insulation effect, and improved heat resistance stability

Inactive Publication Date: 2018-09-07
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

In building energy saving, wall insulation and energy saving are very important and indispensable. However, the current wall insulation materials have technical problems of low strength and insufficient heat preservation, which need to be solved urgently.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of thermal insulation wallboard with low heat transfer coefficient, its raw materials include: 80kg of cement, 50kg of prefabricated expanded perlite, 40kg of styrene-acrylic emulsion, 40kg of polyacrylonitrile-based carbon fiber, 30kg of glass fiber, 16kg of gypsum, and 15kg of ultra-high molecular weight polyethylene fiber , Steel fiber 10kg, diatomaceous earth 2kg, esterified starch 25kg, fly ash 10kg, talcum powder 16kg, calcium carbonate 10kg, mica powder 10kg. The solid content of the styrene-acrylic emulsion is 40%, and the viscosity is 100mPa·s.

[0016] The prefabricated expanded perlite is prepared by the following process: 10kg of gelatin, 12kg of expanded perlite, and 80kg of 8wt% hydrogen peroxide solution are mixed uniformly, filtered, and the adjustment system is neutral, and 0.2kg of ammonium persulfate and 0.2kg of sulfurous acid are added under nitrogen protection. Stir with sodium hydrogen for 15 minutes, add 3kg of acrylamide and stir for 4 ho...

Embodiment 2

[0018] A thermal insulation wallboard with low heat transfer coefficient, its raw materials include: 120kg of cement, 30kg of prefabricated expanded perlite, 60kg of styrene-acrylic emulsion, 20kg of polyacrylonitrile-based carbon fiber, 40kg of glass fiber, 8kg of gypsum, and 20kg of ultra-high molecular weight polyethylene fiber , steel fiber 5kg, diatomaceous earth 8kg, esterified starch 15kg, fly ash 20kg, talcum powder 8kg, calcium carbonate 20kg, mica powder 5kg. The solid content of the styrene-acrylic emulsion is 50%, and the viscosity is 500mPa·s.

[0019] The prefabricated expanded perlite is prepared by the following process: 16kg of gelatin, 8kg of expanded perlite, and 120kg of 4wt% hydrogen peroxide solution are mixed uniformly, filtered, and the adjustment system is neutral, and 0.4kg of ammonium persulfate and 0.1kg of sulfurous acid are added under nitrogen protection. Sodium hydrogen was stirred for 25 minutes, 1.5 kg of acrylamide was added and stirred for 6...

Embodiment 3

[0021] A low heat transfer coefficient thermal insulation wallboard, its raw materials include: 90kg of cement, 45kg of prefabricated expanded perlite, 45kg of styrene-acrylic emulsion, 35kg of polyacrylonitrile-based carbon fiber, 33kg of glass fiber, 14kg of gypsum, and 16kg of ultra-high molecular weight polyethylene fiber , steel fiber 8kg, diatomaceous earth 4kg, esterified starch 22kg, fly ash 12kg, talcum powder 14kg, calcium carbonate 12kg, mica powder 12kg. The solid content of the styrene-acrylic emulsion is 45%, and the viscosity is 300mPa·s.

[0022] The prefabricated expanded perlite is prepared by the following process: mix 12kg gelatin, 11kg expanded perlite, and 90kg hydrogen peroxide solution with a concentration of 7wt% evenly, filter, adjust the system to be neutral, add 0.25kg ammonium persulfate and 0.18kg sulfurous acid under nitrogen protection Sodium hydrogen was stirred for 18 minutes, 2.5 kg of acrylamide was added and stirred for 4.5 hours, precipita...

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Abstract

The invention discloses a heat-insulation wallboard with a low heat transfer coefficient, containing the following materials in parts by weight: 80-120 parts of cement, 30-50 parts of prefabricated expanded perlite, 40-60 parts of styrene-acrylic emulsion, 20-40 parts of poly-acrylonitrile base carbon fiber, 30-40 parts of glass fiber, 8-16 parts of gypsum, 15-20 parts of ultra-high molecular weight polyethylene fiber, 5-10 parts of steel fiber, 2-8 parts of kieselguhr, 15-25 parts of esterified starch, 10-20 parts of coal ash, 8-16 parts of talcum powder, 10-20 parts of calcium carbonate, and5-10 parts of mica powder. The prefabricated expanded perlite is prepared by adopting the following process: uniformly mixing gelatin, expanded perlite and hydrogen peroxide solution, filtering, adjusting the system to be neutral, adding ammonium persulfate and sodium hydrogen sulfite under nitrogen protection and stirring, adding acrylamide and stirring, precipitating, and drying, thus obtainingthe prefabricated expanded perlite.

Description

technical field [0001] The invention relates to the technical field of thermal insulation wallboards, in particular to a thermal insulation wallboard with low heat transfer coefficient. Background technique [0002] In recent years, with the rapid development of the country's economic construction, the conservation and utilization of energy and resources has been widely valued. The Ministry of Housing and Urban-Rural Development has proposed energy-saving requirements for residential buildings and public buildings, and various regions have also issued corresponding policies, measures and mandatory implementation standards. , mainly aiming at the energy-saving standards of 50% and 65% for newly-built residential buildings and public buildings respectively. In building energy conservation, wall insulation and energy saving are very important and indispensable. However, the current wall insulation materials have technical problems of low strength and insufficient thermal insula...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B20/02C04B14/18
CPCC04B20/023C04B28/00C04B2201/20C04B2201/32C04B2201/50C04B14/185C04B24/2641C04B14/386C04B14/42C04B22/143C04B16/0633C04B14/48C04B14/08C04B24/38C04B18/08C04B14/042C04B14/28C04B14/20
Inventor 张绪恕
Owner 安徽臻烁新材料技术有限公司
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