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A platform for research: civil engineering, architecture and urbanism
Preparation process of flexible aerogel composite thermal insulation material
The invention discloses a preparation process of a flexible aerogel composite thermal insulation material. The preparation process comprises the following steps: (1), preparing silicon dioxide sol: mixing and hydrolyzing a silicon source, a solvent and a hydrolysis catalyst; (2), performing compounding: adding a softener and a gel catalyst into the silicon dioxide sol, uniformly mixing, and then spraying into the base material to enable the base material to be filled with the mixed solution; (3), performing molding: conveying the compounded material to the temperature of 35-45 DEG C, keeping the state for 10-30 minutes, and performing fixing and molding; (4), performing aging: soaking the formed composite material in a solvent; (5), performing hydrophobic modification: soaking the aged composite material in a modification solution; and (6), performing drying: drying the product by adopting supercritical carbon dioxide. The flexible aerogel composite thermal insulation material prepared by the invention has excellent thermal insulation, noise reduction, sunshade and fireproof performance, and is convenient to construct; the gel process time is effectively shortened, the reaction temperature is reduced, the process flow is simplified, the production can be continuous, and the production cost is low.
本发明公开了一种柔韧性气凝胶复合绝热材料的制备工艺，包括以下步骤：（1）制备二氧化硅溶胶：将硅源、溶剂和水解催化剂混合水解；（2）复合：在二氧化硅溶胶中加入柔顺剂、凝胶催化剂，混合均匀，然后喷淋到基材中，使基材充满混合溶液；（3）成型：将复合完成后的材料输送到温度35‑45℃的条件下保持10‑30min，固定成型；（4）陈化：将成型的复合材料放入溶剂中浸泡；（5）疏水改性：将陈化后的复合材料放入改性液中浸泡；（6）干燥：采用超临界二氧化碳进行干燥。本发明制备出的柔韧性气凝胶复合绝热材料具有优良的保温、降噪、遮阳、防火性能，且施工方便；有效地缩短凝胶工艺时间、降低反应温度，简化工艺流程，生产可连续化，且生产成本低。
Preparation process of flexible aerogel composite thermal insulation material
The invention discloses a preparation process of a flexible aerogel composite thermal insulation material. The preparation process comprises the following steps: (1), preparing silicon dioxide sol: mixing and hydrolyzing a silicon source, a solvent and a hydrolysis catalyst; (2), performing compounding: adding a softener and a gel catalyst into the silicon dioxide sol, uniformly mixing, and then spraying into the base material to enable the base material to be filled with the mixed solution; (3), performing molding: conveying the compounded material to the temperature of 35-45 DEG C, keeping the state for 10-30 minutes, and performing fixing and molding; (4), performing aging: soaking the formed composite material in a solvent; (5), performing hydrophobic modification: soaking the aged composite material in a modification solution; and (6), performing drying: drying the product by adopting supercritical carbon dioxide. The flexible aerogel composite thermal insulation material prepared by the invention has excellent thermal insulation, noise reduction, sunshade and fireproof performance, and is convenient to construct; the gel process time is effectively shortened, the reaction temperature is reduced, the process flow is simplified, the production can be continuous, and the production cost is low.
本发明公开了一种柔韧性气凝胶复合绝热材料的制备工艺，包括以下步骤：（1）制备二氧化硅溶胶：将硅源、溶剂和水解催化剂混合水解；（2）复合：在二氧化硅溶胶中加入柔顺剂、凝胶催化剂，混合均匀，然后喷淋到基材中，使基材充满混合溶液；（3）成型：将复合完成后的材料输送到温度35‑45℃的条件下保持10‑30min，固定成型；（4）陈化：将成型的复合材料放入溶剂中浸泡；（5）疏水改性：将陈化后的复合材料放入改性液中浸泡；（6）干燥：采用超临界二氧化碳进行干燥。本发明制备出的柔韧性气凝胶复合绝热材料具有优良的保温、降噪、遮阳、防火性能，且施工方便；有效地缩短凝胶工艺时间、降低反应温度，简化工艺流程，生产可连续化，且生产成本低。
Preparation process of flexible aerogel composite thermal insulation material
一种柔韧性气凝胶复合绝热材料的制备工艺
SONG DAWEI (author) / LUO SHAN (author)
2021-11-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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