研究了高密度聚乙烯/碳黑-多壁碳纳米管复合材料的正温度系数效应(PTC).结果发现,HDPE/CB-MWNTs复合材料中MWNTs的含量为1%.(质量分数,下同)时复合材料的PTC强度达8.3,室温电阻率仅为1.2Ω·m;而当MWNTs的含量为3%.时复合材料的PTC强度迅速减小到小于3,室温电阻率则变化不大.SEM研究表明导电填料CB或者MWNTs在复合材料中分布均匀.对HDPE/CB-MWNTs复合材料的PTC效应随MWNTs含量的变化原因进行了探讨.
参考文献
| [1] | DISHOVSKY N;GIGOROVA M .On the correlation between electromagnetie waves absorption and electrical conductivity of carbon black filled polyethylene's[J].Materials Research Bulletin,2000,35:403-409. |
| [2] | Schwartz G.;Marzocca AJ.;Cerveny S. .A numerical simulation of the electrical resistivity of carbon black filled rubber[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(17):6589-6595. |
| [3] | DAS N C;KHASTGIR D;CHAKI T K et al.Electromagnetic interference shielding iveness of carbon black and carbon fiber filled EVA and NR based composites[J].COMPOSITES,2000,31:1069-1081. |
| [4] | Ghosh Premamoy;Chakrabarti Amit .Conducting carbon black filled EPDM vulcanizates: assessment of dependence of physical and mechanical properties and conducting character on variation of filler loading[J].European Polymer Journal,2000(5):1043-1054. |
| [5] | 易回阳,肖建中.金属及其化合物填充聚合物PTC材料的研究进展[J].现代塑料加工应用,2001(06):48-51. |
| [6] | ALLAOUI A;BAI S;CHENG H M.Mechanical and electric properties of a MWNT/epoxy composite[J].Composites Science and Technology,2002(62):1993-1998. |
| [7] | Stephan C.;Nguyen TP.;Lahr B.;Blau W.;Lefrant S.;Chauvet O. .Raman spectroscopy and conductivity measurements on polymer-multiwalled carbon nanotubes composites[J].Journal of Materials Research,2002(2):396-400. |
| [8] | 易回阳;陈芳;罗四清 .高密度聚乙烯/碳纳米管复合材料PTC特性研究[J].功能材料,2007,38(zk):610-612. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%