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A kind of foam material and its preparation method and application

A foaming material and foaming agent technology, applied in the field of thermal insulation materials, can solve the problems of poor thermal insulation performance, brittleness, and high bulk density of thermal insulation materials, and achieve the effects of increasing toughness, wide application range, and reducing dry bulk density and thermal conductivity.

Active Publication Date: 2018-06-22
重庆天维绿色建筑技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a foaming material and its preparation method and application, which are used to solve the problem of high bulk density, poor toughness, fragility, and poor thermal insulation performance of thermal insulation materials in the prior art. question

Method used

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  • A kind of foam material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A foaming material, comprising the following raw materials in parts by weight:

[0028] 80 parts of modified cement base, 0.5 parts of modified acrylic acid emulsion, 0.5 parts of polycarboxylate superplasticizer, 0.5 parts of fiber, 8 parts of foaming agent, and 38 parts of water.

[0029] The raw material of modified cement base and its weight ratio is cement: mineral admixture: modified whisker = 80:20:2, the raw material of modified whisker and its weight ratio is whisker: stearic acid: coupling agent : liquid paraffin=50:0.3:0.2:0.2, the whiskers in the modified whiskers are calcium carbonate whiskers, the coupling agent in the modified whiskers is a titanate coupling agent, and the cement in the modified cement base is Ordinary Portland cement grade 42.5, mineral admixture is slag powder S95 grade (conforming to "GB / T 18046-2008 Granulated blast furnace slag powder used in cement and concrete"), raw materials and weight of modified acrylic acid emulsion The ratio...

Embodiment 2

[0036] A foaming material, comprising the following raw materials in parts by weight:

[0037] 90 parts of modified cement base, 1 part of modified acrylic emulsion, 1 part of polycarboxylate superplasticizer, 0.7 parts of fiber, 8.5 parts of foaming agent, and 35 parts of water.

[0038] The raw material of modified cement base and its weight ratio is cement: mineral admixture: modified whisker = 60:40:4, the raw material of modified whisker and its weight ratio is whisker: stearic acid: coupling agent =60:1:0.5, the whiskers in the modified whiskers are calcium sulfate whiskers, the coupling agent in the modified whiskers is an aluminate coupling agent, and the cement in the modified cement base is ordinary Portland cement Grade 52.5, the mineral admixture is first-class fly ash (in line with "GB1596-2005 for fly ash in cement and concrete"), the raw material and weight ratio of the modified acrylic emulsion are acrylic emulsion: coupling agent: Water = 45:1:15. The coupli...

Embodiment 3

[0045] A foaming material, comprising the following raw materials in parts by weight:

[0046] 95 parts of modified cement base, 1.5 parts of modified acrylic emulsion, 1.5 parts of polycarboxylate superplasticizer, 0.8 parts of fiber, 9 parts of foaming agent, and 40 parts of water.

[0047] The raw material of modified cement base and its weight ratio is cement:modified whisker=95:5, the raw material of modified whisker and its weight ratio is whisker:stearic acid:coupling agent:absolute ethanol=80: 1.5:1:1, the whiskers in the modified whiskers are basic magnesium sulfate whiskers, the coupling agent in the modified whiskers is a silane coupling agent, and the cement in the modified cement base is sulphoaluminate cement and Ordinary Portland cement 42.5 grade mixture, modified acrylic emulsion raw materials and their weight ratio is acrylic emulsion: coupling agent: water = 50:1.5:20. The coupling agent in the modified acrylic emulsion is a silane coupling agent, and the p...

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Abstract

The invention provides a foam material and a preparation method and application thereof. The material is prepared from, by weight, 80-110 parts of modified cement base, 0.5-3 parts of modified acrylic emulsion, 0.5-2 parts of polycarboxylate superplasticizer, 0.5-1 part of fiber, 6-11 parts of foaming agent and 30-60 parts of water. According to the foam material and the preparation method and application thereof, an existing cement-based material foaming technology is optimized, the dry density and heat conductivity coefficient are decreased, toughness of the material is increased, the dry density and heat conductivity coefficient of the material are closer to those of organic plates, the strength and toughness are properly improved on the existing basis, the requirements of construction can be met, and the foam material particularly can be applied to the material fields of building energy conservation, external wall insulation, pipeline insulation and the like.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a foaming material and its preparation method and application. Background technique [0002] Cement-based foam thermal insulation materials have attracted widespread attention in the industry due to their excellent physical and economic properties, and set off a wave of research and development. At present, the common practice of cement-based foam thermal insulation materials is as follows: First, the physical method is to make water and foaming agent into stable foam, then mix it with cement slurry, put it into a mold and harden it to form a certain strength thermal insulation material with a large number of pores. Insulation materials; the other is to add chemical foaming agents such as hydrogen peroxide directly into the cement slurry, and put them into the mold to harden to form a certain strength insulation material. Both of the above two cement foam insulation m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/02
CPCC04B28/04C04B38/02C04B24/26C04B2103/302C04B14/383C04B18/141
Inventor 李云军刘建
Owner 重庆天维绿色建筑技术开发有限公司