溶胶配比对炭气凝胶隔热复合材料力学性能的影响规律

来源 :第二届中国国际复合材料科技大会 (CCCM-2) | 被引量 : 0次 | 上传用户:yht52119
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  炭气凝胶复合材料由于具备轻质、耐高温、热导率低且良好的力学性能等优点,极具潜力作为新型高性能隔热材料应用于现代航天和工业等领域。传统的炭气凝胶隔热复合材料的制备工艺以水为溶剂,干燥之前需要经过溶剂置换过程,制备周期长。本文以异丙醇(Ⅰ)为溶剂,六次甲基四胺(H)为催化剂,配制间苯二酚(R)-糠醛(F)的醇溶胶,然后浸渍纤维预制件,经凝胶老化、超临界干燥、炭化制得炭纤维增强炭气凝胶复合材料,省却了置换过程。
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