Hydrophobic aluminum-silicon aerogel composite material and preparation method thereof
The invention discloses a hydrophobic aluminum-silicon aerogel composite material and a preparation method thereof. The preparation method comprises the following steps: preparing silica sol and aluminum sol; compounding silicon-aluminum gel on a fiber support body based on the silica sol and the al...
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| creator | SUI XUEYE DUAN XIAOFENG ZHOU CHANGLING TANG WENZHE LIU RUIXIANG LI ZHANFENG WANG MENGMENG |
| description | The invention discloses a hydrophobic aluminum-silicon aerogel composite material and a preparation method thereof. The preparation method comprises the following steps: preparing silica sol and aluminum sol; compounding silicon-aluminum gel on a fiber support body based on the silica sol and the aluminum sol to obtain a composite silicon-aluminum gel fiber support body; placing the composite silicon-aluminum gel fiber support body in a first solvent for aging; carrying out supercritical drying on the aged composite silicon-aluminum gel fiber support body through a drying medium; the first solvent comprises ethyl alcohol and ethyl orthosilicate, and the volume ratio of ethyl orthosilicate to ethyl alcohol in the first solvent is 1: (5-20); hydrophobic modification of the aluminum-silicon aerogel composite material is achieved, and it is avoided that due to the fact that the aluminum-silicon aerogel composite material finished product and a hydrophobic modifier solution are combined for modification, part of w |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SLAG THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE |
| title | Hydrophobic aluminum-silicon aerogel composite material and preparation method thereof |
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