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Aerogel modified expanded perlite heat preservation plate and preparing method thereof

A technology of expanded perlite and expanded perlite powder is applied in the field of aerogel modified expanded perlite thermal insulation board and its preparation, which can solve the problems of no obvious improvement in waterproof performance and mechanical strength, shorten the replacement cycle, reduce Radiation heat transfer, the effect of reducing heat conduction

Active Publication Date: 2017-08-25
天津朗华科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The Chinese patent No. 201310577279.5 discloses expanded perlite external wall thermal insulation board and its preparation method. This technology uses vitrified expanded perlite, inorganic binder, and appropriate amount of water as raw materials, and the prepared thermal insulation board has better thermal insulation effect , while the waterproof performance and mechanical strength of the material have not been significantly improved

Method used

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  • Aerogel modified expanded perlite heat preservation plate and preparing method thereof
  • Aerogel modified expanded perlite heat preservation plate and preparing method thereof
  • Aerogel modified expanded perlite heat preservation plate and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1～8

[0084] 1. A formula for airgel modified expanded perlite insulation board, comprising 30-80 parts by weight of expanded perlite powder, 2-20 parts by weight of airgel intermediate, 10-40 parts by weight One or both of mixture A, 2-20 parts by weight of cement, 10-40 parts by weight of water A, ceramic fiber cotton and wood fiber cotton, the specific consumption of each raw material in embodiments 1-8 can be found in Table 1;

[0085] Mixture A includes 20-70 parts by weight of silica sol, 10-50 parts by weight of silicone-modified acrylic emulsion, 70-130 parts by weight of water B, and 0.05-1 part by weight of polyacrylamide , 0.5 to 10 parts by weight of coupling agent A, the detailed composition of compound A in embodiments 1 to 8 is shown in Table 2;

[0086] The sum of the parts by weight of the ceramic fiber cotton and the wood fiber cotton is 0% to 15% of the sum of the parts by weight of the expanded perlite powder, the airgel intermediate, and the cement;

[0087] G...

Embodiment 9～16

[0130] The comparative group Examples 9-16 of Examples 1-8 are set respectively, and Examples 9-16 do not have foaming treatment process in the preparation process of the insulation board; for the rest, Example 9 is the same as Example 1, and Example 10 is the same Embodiment 2, embodiment 11 is the same as embodiment 3, embodiment 12 is the same as embodiment 4, embodiment 13 is the same as embodiment 5, embodiment 14 is the same as embodiment 6, embodiment 15 is the same as embodiment 7, and embodiment 16 is the same as embodiment 8;

[0131] In Examples 9-16, the preparation method of the airgel modified expanded perlite insulation board is carried out according to the following steps, and the specific values ​​of the parameters in each step are shown in Table 5:

[0132] (1) Primary selection of expanded perlite powder: classify and screen expanded perlite, and select expanded perlite powder with a particle size ≤ 3mm;

[0133] (2) Separation of expanded perlite powder: t...

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Abstract

The invention belongs to the technical field of energy-saving and environment-friendly materials, and particularly relates to an aerogel modified expanded perlite heat preservation plate for architecture and industrial energy conservation and heat preservation. The aerogel modified expanded perlite heat preservation plate is prepared from one or two expanded perlite powder, an aerogel intermediate, cement, a mixing material A, water, ceramic fiber cotton and wood fiber cotton. The preparing method comprises the steps of evenly mixing one or two in the expanded perlite powder, the aerogel intermediate, the cement, the ceramic fiber cotton and the wood fiber cotton, adding water to conduct even stirring, adding the mixing material A, after conducting even stirring, adopting a mold to conduct press forming, and conducting airing after conducting drying till full dryness is achieved. According to the aerogel modified expanded perlite heat preservation plate, the thermal conductivity and moisture content of the expanded perlite heat preservation plate product are drastically lowered, and the bending resisting strength and tensile resisting strength are both drastically improved.

Description

technical field [0001] The invention belongs to the technical field of energy-saving and environment-friendly materials, and in particular relates to an airgel-modified expanded perlite insulation board for building and industrial energy-saving insulation and a preparation method thereof. Background technique [0002] With the rapid development of social economy, the increasing shortage of global energy has become a worldwide problem. Improving the utilization rate of existing energy and saving energy have attracted great attention from all countries. my country is an energy-poor country, therefore, rational use of energy and energy conservation are of great significance to the sustainable development of our society. Adopting new technologies and new processes to develop environmentally friendly and efficient heat insulation materials is one of the most effective and economical measures to save energy. [0003] At present, the organic thermal insulation materials used in Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/08C04B14/18C04B16/02C04B38/10
CPCC04B14/185C04B16/02C04B28/00C04B2201/32C04B2201/50C04B14/064C04B14/06C04B14/46C04B24/42C04B24/2652C04B2103/0068C04B38/085C04B38/10
Inventor 郑善
Owner 天津朗华科技发展有限公司
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