Influence of the Compaction Temperature on the Electrical and Mechanical Properties of the Segregated Conductive Ultrahigh Molecular Weight Polyethylene/Carbon Nanotube Composite
Influence of the Compaction Temperature on the Electrical and Mechanical Properties of the Segregated Conductive Ultrahigh Molecular Weight Polyethylene/Carbon Nanotube Composite
复制标题
压实温度对隔离导电超高分子量聚乙烯/碳纳米管复合材料电学性能的影响
DOI：
10.1080/03602559.2012.715708
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发表时间：
2012-11
期刊：
影响因子：
--
通讯作者：
Li, Zhong-Ming
中科院分区：
文献类型：
--
作者：
Pang, Huan;Bao, Yu;Chen Chen;Lei, Jun;Ji, Xu;Chen, Jun;Li, Zhong-Ming
研究了压制温度对偏析型导电聚合物（CPC）/碳纳米管（CNT）复合材料电学和力学性能的影响。导电填料并不均匀地分散在复合材料中，而是主要位于颗粒边界上，非常有效地形成导电网络。超高分子量聚乙烯（UHMWPE）分离的CPC在两个压实温度下合成，一个刚好高于熔融温度（145°C），另一个高于熔融温度（200°C）。与高密度聚乙烯（HDPE）/UHMWPE/CNT相比，UHMWPE/CNT具有更好的导电性，而HDPE/UHMWPE/CNT分离型CPC在两种压制温度下的拉伸力学性能均高于UHMWPE/CNT。较高的压制温度有利于UHMWPE/CNT复合材料力学性能的提高，但降低了复合材料的电性能。HDPE/UHMWPE/CNT复合材料的力学性能和电学性能均随压制温度的降低而降低。这些结果可以进一步确定偏析复合材料的最佳制备条件。
The effect of the compaction temperature on the electrical and mechanical properties of the segregated conductive polymer (CPC)/carbon nanotube (CNT) composites was investigated. The conductive fillers were not uniformly dispersed in the composites but were dominantly localized on the granule boundaries, very efficiently forming conductive networks. The ultrahigh-molecular-weight polyethylene (UHMWPE) segregated CPCs were synthesized with two compaction temperature, one just above the melting temperature (145°C) and another higher than the melting temperature (200°C). UHMWPE/CNT exhibited the better electrical conductivity by comparing to high-density polyethylene (HDPE)/UHMWPE/CNT, while the HDPE/UHMWPE/CNT segregate CPCs displayed the higher values of the tensile mechanical properties than those of UHMWPE/CNT at the two compaction temperatures. The higher compaction temperature was in favor of the improvement on mechanical properties and degraded the electrical performance of UHMWPE/CNT. For HDPE/UHMWPE/CNT, the electrical and mechanical properties both reduced with decreasing the compaction temperature. These results can further determine the optimal preparation conditions of the segregated composites.
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DOI：
10.1080/03602559.2011.639327
发表时间：
2012-01
期刊：
Polymer - Plastics Technology and Engineering
影响因子：
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作者：
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DOI：
10.1002/polb.22344
发表时间：
2011-11
期刊：
Journal of Polymer Science Part B
影响因子：
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