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Preparation method of aerogel fiber felt
The invention discloses a preparation method of an aerogel fiber felt, which is characterized in that aerogel slurry and a fiber felt are directly compounded to prepare the aerogel felt, and the aerogel slurry does not need to be dried into aerogel powder, re-dissolved into the aerogel slurry and compounded with the aerogel fiber felt, so that the preparation process is simplified, and the cost is saved. Compared with the method for preparing the aerogel slurry by using finished aerogel powder, the method for preparing the aerogel fiber felt by directly using the aerogel slurry prepared at present can avoid using an aqueous solvent to dissolve the aerogel powder, thereby avoiding damage to the structure of the aerogel and influence on the heat insulation performance of the aerogel fiber felt. The normal-temperature heat conductivity coefficient of the aerogel fiber felt is 0.0201 W/(m.k), and compared with an aerogel fiber felt prepared from finished aerogel powder, the heat conductivity coefficient is reduced by 20%, and the heat insulation performance is remarkably improved.
本发明公开了一种气凝胶纤维毡的制备方法，采用气凝胶浆料与纤维毡直接进行复合来制备气凝胶毡，无需将气凝胶浆料干燥成气凝胶粉，再溶解为气凝胶浆料，再与气凝胶纤维毡进行复合，简化了制备工艺，节约了成本。且相比于使用成品气凝胶粉来制备气凝胶浆料，直接使用现制的气凝胶浆料来制备气凝胶纤维毡，可以避免使用水性溶剂来溶解气凝胶粉，从而避免对气凝胶的结构造成破坏，影响气凝胶纤维毡的隔热性能。本发明气凝胶纤维毡的常温导热系数为0.0201W/(m·k)，相比使用成品气凝胶粉制得的气凝胶纤维毡，导热系数降低了20％，隔热性能显著提升。
Preparation method of aerogel fiber felt
The invention discloses a preparation method of an aerogel fiber felt, which is characterized in that aerogel slurry and a fiber felt are directly compounded to prepare the aerogel felt, and the aerogel slurry does not need to be dried into aerogel powder, re-dissolved into the aerogel slurry and compounded with the aerogel fiber felt, so that the preparation process is simplified, and the cost is saved. Compared with the method for preparing the aerogel slurry by using finished aerogel powder, the method for preparing the aerogel fiber felt by directly using the aerogel slurry prepared at present can avoid using an aqueous solvent to dissolve the aerogel powder, thereby avoiding damage to the structure of the aerogel and influence on the heat insulation performance of the aerogel fiber felt. The normal-temperature heat conductivity coefficient of the aerogel fiber felt is 0.0201 W/(m.k), and compared with an aerogel fiber felt prepared from finished aerogel powder, the heat conductivity coefficient is reduced by 20%, and the heat insulation performance is remarkably improved.
本发明公开了一种气凝胶纤维毡的制备方法，采用气凝胶浆料与纤维毡直接进行复合来制备气凝胶毡，无需将气凝胶浆料干燥成气凝胶粉，再溶解为气凝胶浆料，再与气凝胶纤维毡进行复合，简化了制备工艺，节约了成本。且相比于使用成品气凝胶粉来制备气凝胶浆料，直接使用现制的气凝胶浆料来制备气凝胶纤维毡，可以避免使用水性溶剂来溶解气凝胶粉，从而避免对气凝胶的结构造成破坏，影响气凝胶纤维毡的隔热性能。本发明气凝胶纤维毡的常温导热系数为0.0201W/(m·k)，相比使用成品气凝胶粉制得的气凝胶纤维毡，导热系数降低了20％，隔热性能显著提升。
Preparation method of aerogel fiber felt
一种气凝胶纤维毡的制备方法
OH KI-JUN (author) / XU TUOFU (author) / CHEN CUICUI (author) / XIONG FENG (author) / ZHAO JIAN (author) / LIU HAIBING (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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