高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (6): 1305.doi: 10.7503/cjcu20170751

• 高分子化学 • 上一篇    下一篇

HDPE/HIPS/CB复合材料的制备及PTC性能

秦艳丽1, 徐海萍1,2(), 仇厚田1, 翟月1, 代秀娟1, 杨丹丹1,2, 王静荣1,2   

  1. 1. 上海第二工业大学工学部环境与材料工程学院, 上海 201209
    2. 上海材料创新研究院, 上海 200444
  • 收稿日期:2017-11-20 出版日期:2018-06-10 发布日期:2018-04-16
  • 基金资助:
    上海市自然科学基金(批准号: 16ZR1412400, 15ZR1417100)、 上海市科委科普项目(批准号: 16DZ2348700)、 上海第二工业大学重点学科(批准号: XXKYS1601)、 上海第二工业大学研究生项目(批准号: A01GY17F022)和国家自然科学基金(批准号: 51607109)资助.

Preparation and PTC Properties of HIPS/HDPE/CB Composites

QIN Yanli1, XU Haiping1,2,*(), QIU Houtian1, ZHAI Yue1, DAI Xiujuan1, YANG Dandan1,2, WANG Jingrong1,2   

  1. 1. School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China
    2. Shanghai Innovation Institute for Materials, Shanghai 200444, China
  • Received:2017-11-20 Online:2018-06-10 Published:2018-04-16
  • Contact: XU Haiping E-mail:hpxu@sspu.edu.cn
  • Supported by:
    † Supported by the Shanghai Natural Science Foundation, China(Nos. 16ZR1412400, 15ZR1417100), the Science and Technology Committee of Shanghai Municipal Science and Technology Commission-New Energy and New Materials, China(No. 16DZ2348700), the Key Subject of Shanghai Polytechnic University, China(No. XXKYS1601), the Shanghai Second Polytechnic University Graduate Project Fund, China(No. A01GY17F022) and the National Natural Science Foundation of China(No. 51607109).

摘要:

以高抗冲击聚苯乙烯(HIPS)和高密度聚乙烯(HDPE)为基体, 炭黑(CB)为导电填料, 采用熔融法制备聚合物基正电阻率温度系数效应(PTC)复合材料. 通过扫描电子显微镜(SEM)研究了CB在复合材料两相基体中的选择分布, 采用热敏电阻温度(RT)曲线测试仪研究复合材料PTC性能随CB含量的变化规律. 结果表明, 在HIPS/CB体系中加入HDPE后, 复合材料的渗流阈值降低, PTC强度增强, 耐电压强度有所提高.

关键词: 复合材料, 高抗冲击聚苯乙烯, 高密度聚乙烯, 正电阻率温度系数效应, 聚苯乙烯, 炭黑

Abstract:

Polymer-based positive temperature coefficient(PTC) composites were prepared by melting blending with high impact polystyrene(HIPS) and high density polyethylene(HDPE) as matrix, carbon black(CB) as conductive filler. The selective distribution of CB in two-phase matrix composite was characterized by scanning electron microscopy(SEM). The PTC performance of composite with different contents of CB was studied by thermistor resistivity-temperature(RT) curve tester. The results show that after adding HDPE in HIPS/CB system, the percolation threshold of HIPS/CB/HDPE composites decreases, the PTC intensity increases and the capability of voltage-withstanding also is improved.

Key words: Composite, High impact polystyrene, High density polyethylene, Positive temperature coefficient property, Polystyrene, Carbon black

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