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Preparation method of low-cost and high-strength fiber-reinforced nano porous carbon composite material
The invention discloses a preparation method of a low-cost and high-strength fiber-reinforced nano porous carbon composite material, and belongs to the technical field of preparation of porous carbonand carbon aerogel. The method comprises the following steps: 1) preparing a precursor resin solution; 2) performing pressure impregnation on a fiber felt body; 3) performing pressurization assisted curing to prepare a wet gel composite material through ; 4) performing drying at normal pressure to prepare a phenolic aerogel composite material; and 5) performing carbonizing at high temperature to prepare the nano porous carbon composite material. According to the method, industrial phenolic resin is directly adopted to replace micromolecular monomers to prepare the precursor solution, so that the source of raw materials is expanded, the cost is reduced, the impregnation efficiency is improved through the pressure impregnation, internal defects of the composite material are reduced, the curing time is shortened through the high-pressure assisted curing, and the cured wet gel is directly dried under normal pressure to obtain the organic aerogel composite material. The density of the composite material is 0.20-0.75 g/cm<3>, the compression strength is 2.0-100.1 MPa, and the thermal conductivity is 0.051-0.426 W/(m.K).
本发明公开了一种低成本、高强度纤维增强纳米多孔炭复合材料的制备方法，属于多孔炭和炭气凝胶制备技术领域。该方法步骤：1)前驱体树脂溶液的配置；2)压力浸渍纤维毡体；3)加压辅助固化制备湿凝胶复合材料；4)常压干燥制备酚醛气凝胶复合材料；5)高温炭化制备纳米多孔炭复合材料。本发明直接采用工业酚醛树脂取代小分子单体配制前驱体溶液，扩大了原材料来源，降低了成本，压力浸渍提高了浸渍效率，并且减少了复合材料内部缺陷，高压辅助固化缩短了固化时间，固化后的湿凝胶直接常压干燥得到有机气凝胶复合材料。该复合材料密度0.20‑0.75g/cm3，压缩强度2.0‑100.1MPa，热导率0.051‑0.426W/(m·K)。
Preparation method of low-cost and high-strength fiber-reinforced nano porous carbon composite material
The invention discloses a preparation method of a low-cost and high-strength fiber-reinforced nano porous carbon composite material, and belongs to the technical field of preparation of porous carbonand carbon aerogel. The method comprises the following steps: 1) preparing a precursor resin solution; 2) performing pressure impregnation on a fiber felt body; 3) performing pressurization assisted curing to prepare a wet gel composite material through ; 4) performing drying at normal pressure to prepare a phenolic aerogel composite material; and 5) performing carbonizing at high temperature to prepare the nano porous carbon composite material. According to the method, industrial phenolic resin is directly adopted to replace micromolecular monomers to prepare the precursor solution, so that the source of raw materials is expanded, the cost is reduced, the impregnation efficiency is improved through the pressure impregnation, internal defects of the composite material are reduced, the curing time is shortened through the high-pressure assisted curing, and the cured wet gel is directly dried under normal pressure to obtain the organic aerogel composite material. The density of the composite material is 0.20-0.75 g/cm<3>, the compression strength is 2.0-100.1 MPa, and the thermal conductivity is 0.051-0.426 W/(m.K).
本发明公开了一种低成本、高强度纤维增强纳米多孔炭复合材料的制备方法，属于多孔炭和炭气凝胶制备技术领域。该方法步骤：1)前驱体树脂溶液的配置；2)压力浸渍纤维毡体；3)加压辅助固化制备湿凝胶复合材料；4)常压干燥制备酚醛气凝胶复合材料；5)高温炭化制备纳米多孔炭复合材料。本发明直接采用工业酚醛树脂取代小分子单体配制前驱体溶液，扩大了原材料来源，降低了成本，压力浸渍提高了浸渍效率，并且减少了复合材料内部缺陷，高压辅助固化缩短了固化时间，固化后的湿凝胶直接常压干燥得到有机气凝胶复合材料。该复合材料密度0.20‑0.75g/cm3，压缩强度2.0‑100.1MPa，热导率0.051‑0.426W/(m·K)。
Preparation method of low-cost and high-strength fiber-reinforced nano porous carbon composite material
一种低成本、高强度纤维增强纳米多孔炭复合材料的制备方法
TANG SUFANG (author) / GUO PENGLEI (author) / LI JIAN (author) / PANG SHENGYANG (author) / HU CHENGLONG (author)
2021-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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