本文制备了四种低密度炭/炭保温材料,分析了材料成型结构、基体炭类型、处理温度以及材料密度对导热系数的影响.结果表明:针刺整体毡结构导热系数最大,薄毡粘接结构导热系数最小,而厚毡粘接和薄毡与厚毡交替铺层结构的导热系数介于两者之间.树脂炭基体的炭/炭保温材料导热系数小于热解炭基体的导热系数.对于薄毡粘接结构低密度炭/炭保温材料随着处理温度的升高,导热系数呈上升的趋势.同样,薄毡粘接结构低密度炭/炭保温材料随着密度的增大,导热系数增大.
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