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Title:
ABLATION-RESISTANT SILICON-BORON-NITROGEN RUBBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/111289
Kind Code:
A1
Abstract:
A high-temperature-resistant silicon-boron-nitrogen rubber and a preparation method therefor. Nano titanium dioxide is treated by using a supercritical method, many polar functional groups are formed on the surface of the nano titanium dioxide, and these functional groups can promote titanium dioxide and rubber to directly form polar bonds; the treated nano titanium dioxide is added into the silicon-boron-nitrogen mixed rubber, and the effects of the strength and heat resistance of the silicon-boron-nitrogen rubber after this addition is tested. The test shows that the prepared ablation-resistant silicon-boron-nitrogen rubber has more excellent tensile strength and temperature resistance. The nano titanium dioxide is treated by means of the supercritical method, and then is added to vinyl borosilazane to prepare the silicon-boron-nitrogen rubber, so that the strength and the heat resistance of the silicon-boron-nitrogen mixed rubber are remarkably improved.

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Inventors:
WANG GUOHUI (CN)
ZHANG BING (CN)
FU JIWEI (CN)
JIANG LI (CN)
CHEN HONGBO (CN)
DONG RUITAO (CN)
ZHAO JILIANG (CN)
LIN SANCHUN (CN)
XU XIBAO (CN)
YANG RUOLI (CN)
LV JING (CN)
LIAO XIGUANG (CN)
WANG XIAOYU (CN)
SUN YIXUAN (CN)
MENG WEIPENG (CN)
Application Number:
PCT/CN2021/129958
Publication Date:
June 02, 2022
Filing Date:
November 11, 2021
Export Citation:
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Assignee:
INST OF AEROSPACE SYSTEMS ENGINEERING (CN)
International Classes:
C08L83/16; C08K3/22; C08K9/02
Foreign References:
CN112457675A2021-03-09
CN111548443A2020-08-18
CN111534078A2020-08-14
US4150015A1979-04-17
CN111662541A2020-09-15
Attorney, Agent or Firm:
PATENT AGENT OF CHINA AEROSPACE TECHNOLOGY (CN)
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