Silicon-dioxide aerogel heat insulation composite material and preparation method thereof

The invention provides a fiber-reinforced silicon-dioxide aerogel heat insulation composite material and a preparation method thereof. According to the preparation method, mineral fibers with high mechanical strength, low heat conductivity and good heat stability serve as a reinforcing phase, silico...

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Hauptverfasser:	JIAO YUNA, LI HAILONG, SUN XIAOHONG, LI XIAOLEI, JI HUIMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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creator	JIAO YUNA LI HAILONG SUN XIAOHONG LI XIAOLEI JI HUIMING
description	The invention provides a fiber-reinforced silicon-dioxide aerogel heat insulation composite material and a preparation method thereof. According to the preparation method, mineral fibers with high mechanical strength, low heat conductivity and good heat stability serve as a reinforcing phase, silicon alcoholate serves as a precursor, fiber-composite silicon-dioxide wet gel is prepared by adopting an acid-base two-step catalysis method, and the block-shaped fiber-reinforced silicon-dioxide aerogel heat insulation composite material is then obtained through aging, modification, solvent displacement and supercritical drying. The prepared aerogel heat insulation composite material has the advantages of excellent mechanical property, good heat-insulating property and higher heat resistance. The aerogel composite material has a three-dimensional porous network-like structure, the compatibility between fibers and an aerogel matrix is good, the interfacial bonding is firm, and no obvious interfaces exist; and accordi
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subjects	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
title	Silicon-dioxide aerogel heat insulation composite material and preparation method thereof
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