| 新型隔热炭/炭复合材料的制备工艺 |
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| 引用本文： | 郭俊,张明瑜,苏哲安,黄启忠,肖勇. 新型隔热炭/炭复合材料的制备工艺[J]. 粉末冶金材料科学与工程, 2009, 14(3): 200-204 |
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| 作者姓名： | 郭俊 张明瑜 苏哲安 黄启忠 肖勇 |
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| 作者单位： | 中南大学粉末冶金国家重点实验室,长沙,410083 |
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| 基金项目： | 国家自然科学基金资助项目，国家重点基础研究发展规划(973计划)资助项目 |
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| 摘 要： | 针对国内对高性能隔热材料的广泛需求,以炭纤维毡为预制体、热固性树脂为先驱体,采用浸渍-固化-炭化的方法制备新型低密度隔热炭/炭复合材料.研究浸渍液的浓度、树脂和毡体的类型、层间粘接剂的浓度和类型、固化时所加的外部压力等因素对材料密度的影响,并借助扫锚电镜观察、分析样品的微观结构.实验结果表明,采用长纤维毡作预制体、呋喃树脂作先驱体,浸渍液浓度为8%,层间粘接剂选用环氧树脂,固化压力为1 200 MPa时,炭/炭复合材料的密度为0.17 g/cm3,热导率为0.19 W/(m·K).
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| 关 键 词： | 隔热材料 炭/炭复合材料 低密度 影响因素 |
Process of preparing new type of heat insulation carbon/carbon composite |
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| GUO Jun,ZHANG Ming-yu,SU Zhe-an,HUANG Qi-zhong,XIAO Yong. Process of preparing new type of heat insulation carbon/carbon composite[J]. materials science and engineering of powder metallurgy, 2009, 14(3): 200-204 |
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| Authors: | GUO Jun ZHANG Ming-yu SU Zhe-an HUANG Qi-zhong XIAO Yong |
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| Affiliation: | GUO Jun,ZHANG Ming-yu,SU Zhe-an,HUANG Qi-zhong,XIAO Yong(State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China) |
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| Abstract: | With carbon fiber felt as preform and thermosetting resin as precursor,impregnation-curing-carbonization process is employed to prepare a new type of low density heat insulation carbon/carbon composite,and the influence factors of the density including solution concentration,type of resin and felt,type and concentration of agglutinant as well as curing pressure are studied,the optimal condition of each factor is fixed.Through studying SEM photographs of samples after carbonization,causes of micro-defects ar... |
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| Keywords: | heat insulation carbon/carbon composite low density influence factors |
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