| 共混聚乙烯/炭黑复合温敏材料特性的研究 |
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| 引用本文： | 席保锋,陈凯,刘辅宜,徐传骧. 共混聚乙烯/炭黑复合温敏材料特性的研究[J]. 西安交通大学学报, 1999, 33(6): 17-19,54 |
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| 作者姓名： | 席保锋 陈凯 刘辅宜 徐传骧 |
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| 作者单位： | 西安交通大学,710049,西安 |
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| 摘 要： | 研究线性低密度聚乙烯（ＬＬＤＰＥ）和低密度聚乙烯（ＬＤＰＥ）分别与高密度聚乙烯（ＨＤＰＥ）进行共混改性后，对聚乙烯／炭黑复合正温度系数（ＰＴＣ）材料特性的影响，试验表明：ＬＬＤＰＥ与ＨＤＰＥ共混可形成共晶结构，而ＬＤＰＥ和ＨＤＰＥ共混后存在两种结晶结构，用ＬＬＤＰＥ改性ＨＤＰＥ，可使复合材料的机械物理性能大大改善，又不太影响其ＰＴＣ特性，是实现复合ＰＴＣ材料实用化的一条有效途径。
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| 关 键 词： | 聚乙烯 炭黑 PTC特性 温敏材料 复合材料 |
Electrical and Physical Properties of Polyethylene/Carbon Black Composites as Influence by Different Matrix Mixtures |
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| Xi Baofeng,Chen Kai,Liu Fuyi,Xu Chuanxiang. Electrical and Physical Properties of Polyethylene/Carbon Black Composites as Influence by Different Matrix Mixtures[J]. Journal of Xi'an Jiaotong University, 1999, 33(6): 17-19,54 |
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| Authors: | Xi Baofeng Chen Kai Liu Fuyi Xu Chuanxiang |
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| Abstract: | The PTC (positive temperature coefficient) properties of different polyethylene mixtures/carbon black composite are investigated in this paper. Experiments show that the LLDPE (line low density polyethylene) and HDPE (high density polyethylene) composite can form a cocrystalline structure, and two types of crystalline structure exist in the composite of LDPE (low density polyethylene) and HDPE. The mechanical and physical properities of polyethylene/carbon black composite are improved by adding LLDPE in HDPE, and the composite remains well behaved in PTC properties. |
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| Keywords: | polyethylene carbon black crystalline PTC property mechanical and physical property |
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