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A platform for research: civil engineering, architecture and urbanism
Size-controllable graphene oxide modified aerogel composite material and preparation method thereof
The invention relates to a size-controllable graphene oxide modified aerogel composite material and a preparation method thereof. The material is prepared from the following raw materials: size-controllable graphene oxide, a silicon source, an alkali reagent, an acid reagent and a fiber composite material serving as a framework, the acid reagent is added in the hydrolysis stage to adjust the pH value to 2-5, and the alkali reagent is added in the gelling stage to adjust the pH value to 6-8; the fiber composite material serving as the skeleton is completely soaked in a graphene oxide composite silicon wet gel precursor solution composed of size-controllable graphene oxide, a silicon source, an acid reagent and an alkali reagent, and the graphene modified aerogel composite material is formed through gelling and drying; the scheme provided by the invention has the advantages that the heat conductivity coefficient of the aerogel composite material can be reduced, and the heat insulation effect is improved.
一种可控尺寸氧化石墨烯改性气凝胶复合材料及其制备方法，该材料的制备原料包括：可控尺寸氧化石墨烯，硅源，碱试剂，酸试剂和充当骨架的纤维复合材料；所述的酸试剂在水解阶段加入调节pH至2‑5，所述的碱试剂在成胶阶段加入调节pH至6‑8；所述的充当骨架的纤维复合材料完全浸渍于可控尺寸氧化石墨烯、硅源、酸试剂和碱试剂构成的氧化石墨烯复合硅湿凝胶前驱液中，经过凝胶、干燥形成石墨烯改性气凝胶复合材料；本申请的方案具有能降低气凝胶复合材料的导热系数，提高隔热效果的优点。
Size-controllable graphene oxide modified aerogel composite material and preparation method thereof
The invention relates to a size-controllable graphene oxide modified aerogel composite material and a preparation method thereof. The material is prepared from the following raw materials: size-controllable graphene oxide, a silicon source, an alkali reagent, an acid reagent and a fiber composite material serving as a framework, the acid reagent is added in the hydrolysis stage to adjust the pH value to 2-5, and the alkali reagent is added in the gelling stage to adjust the pH value to 6-8; the fiber composite material serving as the skeleton is completely soaked in a graphene oxide composite silicon wet gel precursor solution composed of size-controllable graphene oxide, a silicon source, an acid reagent and an alkali reagent, and the graphene modified aerogel composite material is formed through gelling and drying; the scheme provided by the invention has the advantages that the heat conductivity coefficient of the aerogel composite material can be reduced, and the heat insulation effect is improved.
一种可控尺寸氧化石墨烯改性气凝胶复合材料及其制备方法，该材料的制备原料包括：可控尺寸氧化石墨烯，硅源，碱试剂，酸试剂和充当骨架的纤维复合材料；所述的酸试剂在水解阶段加入调节pH至2‑5，所述的碱试剂在成胶阶段加入调节pH至6‑8；所述的充当骨架的纤维复合材料完全浸渍于可控尺寸氧化石墨烯、硅源、酸试剂和碱试剂构成的氧化石墨烯复合硅湿凝胶前驱液中，经过凝胶、干燥形成石墨烯改性气凝胶复合材料；本申请的方案具有能降低气凝胶复合材料的导热系数，提高隔热效果的优点。
Size-controllable graphene oxide modified aerogel composite material and preparation method thereof
一种可控尺寸氧化石墨烯改性气凝胶复合材料及其制备方法
ZHENG XIAOTIAN (author) / MOU YIRUI (author) / HUANG XIAOSHUAI (author) / FENG ZIBO (author) / JIN XIAOJUN (author) / LIU ZHAOPING (author)
2024-08-27
Patent
Electronic Resource
Chinese
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