| 增容剂对PE-HD/PC/CB导电复合材料PTC效应的影响 |
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| 引用本文： | 唐军辉,王兆波,胡海青,陶勇,王新.增容剂对PE-HD/PC/CB导电复合材料PTC效应的影响[J].中国塑料,2012(4):45-49. |
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| 作者姓名： | 唐军辉 王兆波 胡海青 陶勇 王新 |
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| 作者单位： | 青岛科技大学教育部橡塑工程重点实验室;青岛科技大学材料科学与工程学院 |
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| 基金项目： | 山东省自然科学基金(ZR2011EL008) |
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| 摘 要： | 研究了增容剂马来酸酐接枝聚乙烯(PE-g-MAH)、乙烯-醋酸乙烯酯(EVA)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)对高密度聚乙烯(PE-HD)/聚碳酸酯(PC)/炭黑(CB)复合材料导电性能的影响。结果表明,加入增容剂有利于增强复合材料的正温度系数(PTC)效应,其中嵌段共聚物SBS对复合材料PTC效应的改善效果相对较好,SBS含量为4%(质量分数,下同)时,复合材料的PTC强度最高,比未添加时提高了14.3%;接枝共聚物PE-g-MAH的加入对复合材料PTC效应的增强效果弱于SBS;无规共聚物EVA的加入对负温度系数(NTC)现象具有明显的抑制作用,使复合材料的NTC强度从0.3下降至0.08。
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| 关 键 词： | 高密度聚乙烯 聚碳酸酯 炭黑 增容剂 正温度系数 负温度系数 |
Effect of Different Compatibilizers on PTC Behaviors of PE-HD/PC/CB Conductive Composites |
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| TANG Junhui,WANG Zhaobo,HU Haiqing,TAO Yong,WANG Xin.Effect of Different Compatibilizers on PTC Behaviors of PE-HD/PC/CB Conductive Composites[J].China Plastics,2012(4):45-49. |
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| Authors: | TANG Junhui WANG Zhaobo HU Haiqing TAO Yong WANG Xin |
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| Affiliation: | 1(1.Key Laboratory of Rubber-plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China;2.College of Materials Science and Engineering, Qingdao University of Science and Technology,Qingdao 266042,China) |
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| Abstract: | Effects of three kinds of compatibilizers,maleic anhydride grafted polyethylene(PE-g-MAH),ethylene vinyl acetate(EVA) and styrene-butadiene-styrene block copolymer(SBS),on electrical properties of high-density polyethylene(PE-HD)/polycarbonate(PC) /carbon black(CB) composites were studied.It showed that the addition of compatibilizers to PE-HD/PC/CB composites promoted the positive temperature coefficient(PTC),and the modification effect of SBS was the best among the three compatibilizers.When the content of SBS was 4 wt %,the PTC intensity of the composite increased by 14.3 % based on neat PE-HD/PC/CB composite.The promotion of PTC intensity by PE-g-MAH was less than that of SBS.EVA had the advantage to inhibit the negative temperature coefficient(NTC) phenomenon,the NTC intensity of the composites decreased from 0.3 to 0.08. |
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| Keywords: | high-density polyethylene polycarbonate carbon black compatibilizer positive temperature coefficient negative temperature coefficient |
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