Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite and preparation method thereof
The invention discloses a thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite and a preparation method thereof. The thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite is characterized in that silicon dioxide aerogel accounts for 50-80 weight parts of a matrix, and hydroxylation glass fiber felt accounts for 70-120 weight parts of a reinforcing body. The thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite is prepared by preparing a silica sol system of an MQ structure (M represents (CH3)3SiO1/2, Q represents SiO4/2) through raw materials including absolute ethyl alcohol, deionized water, hexamethyldisiloxane and the like under the acid catalysis environment, then adding gel catalysts, submerging preprocessed glass fiber in the silica sol system to form a wet gel and fiber felt composite, conducting soaking through normal hexane after ageing is conducted for 12-24 h so that water in the system can be removed, and conducting drying to obtain the silicon dioxide aerogel/hydroxylation glass fiber felt composite at temperature of 50-120 DEG C and pressure of 0.01-5 Pa for 1-5 h.
Thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite and preparation method thereof
The invention discloses a thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite and a preparation method thereof. The thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite is characterized in that silicon dioxide aerogel accounts for 50-80 weight parts of a matrix, and hydroxylation glass fiber felt accounts for 70-120 weight parts of a reinforcing body. The thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite is prepared by preparing a silica sol system of an MQ structure (M represents (CH3)3SiO1/2, Q represents SiO4/2) through raw materials including absolute ethyl alcohol, deionized water, hexamethyldisiloxane and the like under the acid catalysis environment, then adding gel catalysts, submerging preprocessed glass fiber in the silica sol system to form a wet gel and fiber felt composite, conducting soaking through normal hexane after ageing is conducted for 12-24 h so that water in the system can be removed, and conducting drying to obtain the silicon dioxide aerogel/hydroxylation glass fiber felt composite at temperature of 50-120 DEG C and pressure of 0.01-5 Pa for 1-5 h.
Thermal insulation silicon dioxide aerogel/hydroxylation glass fiber felt composite and preparation method thereof
HOU RENYI (Autor:in) / ZHANG ZHUORAN (Autor:in) / CHAN XIAOHUA (Autor:in) / LI FENGZHENG (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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