| BaTiO3对CB/HDPE复合材料网络结构及电性能的影响 |
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| 引用本文： | 徐海萍,张潇毅. BaTiO3对CB/HDPE复合材料网络结构及电性能的影响[J]. 上海第二工业大学学报, 2010, 27(2): 112-116 |
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| 作者姓名： | 徐海萍 张潇毅 |
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| 作者单位： | 上海第二工业大学城市建设与环境工程学院,上海,201209 |
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| 基金项目： | 上海市科委基础研究重点项目基金，上海市教委科研创新重点项目基金，"联盟计划"项目基金 |
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| 摘 要： | 将BaTiO3陶瓷作为第二相无机填料加入CB／聚合物基PTC复合材料，目的是利用BaTiO3陶瓷显著的PTC效应及在基体中与CB相互作用以进一步改善聚合物基复合材料的导电性及PTC性能。结合对材料显微结构的分析，当CB体积分数固定为8％，BaTiO3含量达到一定值时所得材料的导电性优于单一CB和聚合物复合，其PTC效应可提高近两个数量级，且能够在一定程度上削弱负温度系数效应。
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| 关 键 词： | CB／（HDPE—BT）复合材料 电性能 PTC效应 |
Effect of BaTiO3 on the Network Structure and Electrical Properties of CB/polymer Composites |
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| XU Hai-ping,ZHANG Xiao-yi. Effect of BaTiO3 on the Network Structure and Electrical Properties of CB/polymer Composites[J]. Journal of Shanghai Second Polytechnic University, 2010, 27(2): 112-116 |
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| Authors: | XU Hai-ping ZHANG Xiao-yi |
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| Affiliation: | (School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, E R. China) |
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| Abstract: | Barium titanate ceramic(BaTi03,BT)is considered as the most important positive temperature coefficient(PTC) ceramic materials,which can easily span across insulating regions and further connect the existing conductive pathways.BT is incorporated into the carbon black(CB)filled high density polyethylene(HDPE)polymer composites to achieve a desired conductivity and further improved PTC effect.It was found that the conductivity and PTC intensity of the specimens were remarkably improved when the concentration of BT reaches a certain level.When compared to the CB/HDPE composites,the negative temperature coefficient effect(NTC)in the CB/(HDPE-BT)composites was also weakened to some extent.These results were explained in microstructure of the CB/(HDPE-BT)composites. |
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| Keywords: | CB/(HDPE-BT)composites electrical property PTC effect |
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