本文通过熔融共混法制备了多种聚丙烯(PP)基复合材料,研究了添加不同含量石墨烯微片(GNP)的GNP/PP复合材料的导热和导电性能以及科琴黑(KB)和气相生长碳纤维(VGCF)对GNP/PP复合材料导热和导电性能的影响.结果表明,随着GNP含量的增加,GNP/PP复合材料的导热系数不断增加,当GNP含量为60％时,GNP/PP复合材料的导热系数比纯PP(0.096 W/m·K)提高了12倍多;当在GNP含量为10％的GNP/PP复合材料中添加KB或VGCF后,该复合材料的导热和导电性能明显提高;扫描电镜照片表明KB或VGCF分布在GNP团聚体之间的PP基体中,GNP团聚体通过KB或VGCF链接形成通路,使得PP基体中形成了更多和更为完善的导电导热网络.
参考文献
| [1] | Zhidong Han;Alberto Fina .Thermal conductivity of carbon nanotubes and their polymer nanocomposites: A review[J].Progress in Polymer Science,2011(7):914-944. |
| [2] | Fukushima H;T Drzal L;Rook BP;Rich MJ .Thermal conductivity of exfoliated graphite nanocomposites[J].Journal of thermal analysis and calorimetry,2006(1):235-238. |
| [3] | 刘加奇,张立群,杨海波,丁雪佳,陈琪,卢咏来.粒子填充聚合物基复合材料导热性能的数值模拟[J].复合材料学报,2009(01):36-42. |
| [4] | 乔梁,赵洪强,郑精武,姜力强.片状Al_2O_3对Al_2O_3/FEP复合材料热导率的影响[J].复合材料学报,2009(06):37-41. |
| [5] | 周文英,齐暑华,王彩风,郭建.高温导热绝缘涂料[J].复合材料学报,2007(02):28-32. |
| [6] | Yunsheng Xu;D. D. L. Chung;Cathleen Mroz .Thermally conducting aluminum nitride polymer-matrix composites[J].Composites, Part A. Applied science and manufacturing,2001(12):1749-1757. |
| [7] | 陈贵巧,李晓云,丘泰.高导热AlN基复相微波衰减陶瓷的研究进展[J].材料科学与工程学报,2007(02):321-324. |
| [8] | Zhou WY;Qi SH;Li HD;Shao SY .Study on insulating thermal conductive BN/HDPE composites[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(1):36-42. |
| [9] | 石志想,傅仁利,何兵兵,李冉,俞晓东.无机填料对环氧模塑料导热和阻燃性能的影响[J].复合材料学报,2011(06):8-13. |
| [10] | 曾亮,周春玉,张东.相变材料导热性能强化的研究进展[J].材料科学与工程学报,2010(06):946-950,954. |
| [11] | Antar Z;Feller J F;Noel H;Glouannec P Elleuch K .Thermoelectric behavior of melt processed carbon nanotube/ graphite/poly(lactic acid) conductive biopolymer nanocomposites(CPC)[J].Materials Letters,2012,67:210-214. |
| [12] | Yu AP;Ramesh P;Itkis ME;Bekyarova E;Haddon RC .Graphite nanoplatelet-epoxy composite thermal interface materials[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(21):7565-7569. |
| [13] | 刘俊峰,袁华,杜波,曹敬煜,黄德欢.碳纳米管/导热硅脂复合材料的导热性能[J].材料科学与工程学报,2009(02):271-273,313. |
| [14] | Aiping Yu;Palanisamy Ramesh;Xiaobo Sun;Elena Bekyarova;Mikhail E. Itkis;Robert C Haddon .Enhanced Thermal Conductivity In A Hybrid Graphite Nanoplatelet - Carbon Nanotube Filler For Epoxy Composites[J].Advanced Materials,2008(24):4740-4744. |
| [15] | Park J G;Cheng Q F;Lu J;Bao J W Li S Tian Y Liang Z Y Zhang C Wang B .Thermal conductivity of MWCNT/epoxy composites:The effects of length,alignment and functionalization[J].CARBON,2012,50:2083-2090. |
| [16] | Chih-Chun Teng;Chen-Chi M. Ma;Chu-Hua Lu .Thermal conductivity and structure of non-covalent functionalized graphene/epoxy composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,2011(15):5107-5116. |
| [17] | 费海燕,朱鹏,宋艳江,谷和平,王晓东,黄培.石墨和炭纤维分别改性热塑性聚酰亚胺复合材料的导热行为[J].复合材料学报,2007(05):44-49. |
| [18] | Mohsin Ali Raza;Aidan Westwood;Andy Brown .Characterisation of graphite nanoplatelets and the physical properties of graphite nanoplatelet/silicone composites for thermal interface applications[J].Carbon: An International Journal Sponsored by the American Carbon Society,2011(13):4269-4279. |
| [19] | Guohua Chen;Wengui Weng;Dajun Wu .Preparation and characterization of graphite nanosheets from ultrasonic powdering technique[J].Carbon: An International Journal Sponsored by the American Carbon Society,2004(4):753-759. |
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%