HIGH-TEMPERATURE-RESISTANT AND OXIDATION-RESISTANT LIGHT-WEIGHT HEAT-INSULATION FOAM MATERIAL AND PREPARATION METHOD THEREFOR - AEROSPACE RESEARCH INSTITUTE OF MATERIALS & PROCESSING TECH

Title:

HIGH-TEMPERATURE-RESISTANT AND OXIDATION-RESISTANT LIGHT-WEIGHT HEAT-INSULATION FOAM MATERIAL AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2022/174624

Kind Code:

A1

Abstract:

A high-temperature-resistant and oxidation-resistant light-weight heat-insulation foam material and a preparation method therefor. The foam material is one of an SiBCN foam material, an SiHfBCN foam material, an SiBCN/C composite foam material or an SiHfBCN/C composite foam material, and is prepared from a precursor solution by means of template impregnation, curing, drying and cracking processes, wherein the precursor solution is an SiBCN precursor solution or an SiHfBCN precursor solution, and the template is a polyurethane foam or an organic carbon modified polyurethane foam. The prepared SiBCN foam material, SiHfBCN foam material or SiBCN/C composite foam material and SiHfBCN/C composite foam material have the advantages of high temperature resistance, a low thermal conductivity, oxidation resistance, a low density and a high strength.

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Inventors:

CHEN ZHIYU (CN)
LI JUNNING (CN)
XU YIFEN (CN)
SUN CHENCHENG (CN)
HU JIDONG (CN)
HU ZIJUN (CN)
FENG ZHIHAI (CN)

Application Number:

PCT/CN2021/128855

Publication Date:

August 25, 2022

Filing Date:

November 05, 2021

Export Citation:

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Assignee:

AEROSPACE RESEARCH INSTITUTE OF MATERIALS & PROCESSING TECH (CN)

International Classes:

C04B35/58; C04B35/622; C04B38/06

Foreign References:

CN113896539A	2022-01-07
CN102491780A	2012-06-13
CN113135742A	2021-07-20
CN108147835A	2018-06-12
CN104311139A	2015-01-28
CN112960982A	2021-06-15
US5279737A	1994-01-18

Other References:

KOUSAALYA ADHIMOOLAM BAKTHAVACHALAM; KUMAR RAVI; SRIDHAR B.T.N.: "Thermal conductivity of precursor derived Si-B-C-N ceramic foams using Metroxylon sagu as sacrificial template", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 41, no. 1, 18 September 2014 (2014-09-18), NL , pages 1163 - 1170, XP029092712, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2014.09.044
See also references of EP 4151611A4

Attorney, Agent or Firm:

BEIJING WUZHOUYANGHE & PARTNERS (CN)

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