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Multi-element aerogel composite material and preparation method thereof

A composite material and multi-component technology, applied in the field of airgel composite materials and its preparation, can solve the problems of high brittleness of the heat insulation layer and complicated process

Active Publication Date: 2010-04-28
海鹰空天材料研究院(苏州)有限责任公司
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Problems solved by technology

[0008] In order to overcome the disadvantages of complex preparation process, low degree of hydrophobization and / or insufficient toughness of heat insulation material products in the existing heat insulation material technology related to airgel, the present invention provides a multi-component airgel Composite material and its preparation method, thereby solving the problems of high brittleness of the heat insulation layer and / or complicated process

Method used

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  • Multi-element aerogel composite material and preparation method thereof
  • Multi-element aerogel composite material and preparation method thereof
  • Multi-element aerogel composite material and preparation method thereof

Examples

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Embodiment 1

[0106] Add methanol as alcohol solvent and silicon alkoxide Si(OCH 3 ) 4 , silicon alkoxide CH 3 Si(OCH 3 ) 3 and silicon alkoxide (CH 3 )(C 2 h 5 )Si(OC 2 h 5 ) 2 Mix well with deionized water, then add ammonia water as a catalyst, and mix well to obtain silica sol. The molar ratio of silicon alkoxide, alcohol solvent, deionized water and catalyst is 1: 10: 3: 0.01, wherein the molar number of silicon alkoxide is used silicon alkoxide Si (OCH 3 ) 4 , silicon alkoxide CH 3 Si(OCH 3 ) 3 and silicon alkoxide (CH 3 )(C 2 h 5 )Si(OC 2 h 5 ) 2 The sum of moles; the silicon alkoxide Si(OCH 3 ) 4 , silicon alkoxide CH 3 Si(OCH 3 ) 3 and silicon alkoxide (CH 3 )(C 2 h 5 )Si(OC 2 h 5 ) 2 The molar ratio is 2:1:0.5.

[0107] Impregnate the quartz fiber cotton with the prepared silica sol, the impregnation method adopts the method (a) described herein to carry out, that is, directly add the silica sol to the mold cavity that is equipped with the quartz fibe...

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Abstract

The invention provides a multi-element aerogel composite material, comprising fiber materials and the multi-element aerogel, wherein the multi-element aerogel is prepared from multi-element silicon alkoxide. The invention also provides a method for preparing the multi-element aerogel composite material with simple process and easy operation, which comprises the steps of preparing silicon sol, gumming, gelatinizing, aging, supercritically drying and the like. The multi-element aerogel composite material has the advantages of good flexibility, high hydrophobicity, controllable structure and performance and the like, can be used in the field of civilian thermal insulation, and can meet special requirements of aviation, spaceflight or military and other fields.

Description

technical field [0001] The invention belongs to the technical field of preparation materials, and relates to a thermal insulation composite material and a preparation method thereof, in particular to an airgel composite material and a preparation method thereof. Background technique [0002] Energy saving and environmental protection are getting more and more attention, and thermal insulation technology in industry, construction, military and other fields is also being strengthened day by day. At present, there are many kinds of energy-saving materials used for heat preservation in my country, mainly including: ceramic fiber cotton board, glass fiber cotton board, rock wool board, polystyrene foam plastic board, foamed cement, new expanded perlite insulation system and poly Benzene particle insulation slurry, etc. my country is vigorously developing thermal insulation technology, and thermal insulation materials and technologies are gradually developing in the direction of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 邹军锋詹万初张昊张鹏赵小玲
Owner 海鹰空天材料研究院(苏州)有限责任公司
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