| 交联聚酰亚胺的减摩增韧改性 |
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| 引用本文： | 丛培红 李家泽. 交联聚酰亚胺的减摩增韧改性[J]. 工程塑料应用, 1997, 25(2): 1-4 |
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| 作者姓名： | 丛培红 李家泽 |
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| 作者单位： | 中国科学院兰州化学物理研究所 730000(丛培红，李同生，张绪寿)，中国科学院化学研究所 北京(李家泽) |
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| 摘 要： | 采用短碳纤维（ＣＦ）、聚四氟乙烯（ＰＴＦＥ）和缩合型线性聚酰亚胺（ＣＰＩ），用机械共混、热压模塑的方法，对加成型交联聚酰亚胺（ＡＰＩ）进行减摩增韧性性，并对复合材料的摩擦磨损、力学性能和形态结构进行了测试与分析。研究结果表明，与纯ＡＰＩ相比，含１０％ＣＦ的ＡＰＩ复合材料的冲击强度提高了２８０％；含２０％ＣＰＩ的ＡＰＩ复合材料的冲击强度，弯曲强度分别提高了１５０％和６０％；含３０ＴＰＴＥＥ的ＡＰＩ复
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| 关 键 词： | 聚酰亚胺 碳纤维 复合材料 增韧 摩擦 改性 |
PHYSICAL MODIFICATION OF CROSS-LINKING POLYIMIDE |
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| Abstract: | Tribological and mechanical properties of short carbon fiber (CF),polytetrafluoroethyIene ( PTFE ),condensation-type linear polyimide (CPI) filled addition-type cross-linking polyimide (API) were studied in this paper.Structural morphology were analyzed by means of Scanning Electron Microscope (SEM).It was found that,the content of CF was 10%.impact strength of composite was 280% times of API.Friction coefficient of 30% PTFE filled API reduced to 0.16,wear decreased to 0.3 urn3.The content of CPI was 20%,impact strength and flexural strength of composite were 250%,160% times of API respectively.Fillers which were compatible with API,could improve toughness and flexural strength of composites simultaneously. |
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| Keywords: | polyimide carbon fiber PTFE composite tougheness friction |
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