环氧树脂/改性碳纳米管复合材料的导热性能

doi:10.19491/j.issn.1001-9278.2015.01.005

中国塑料 ›› 2015, Vol. 29 ›› Issue (01): 23-28 .DOI: 10.19491/j.issn.1001-9278.2015.01.005

环氧树脂/改性碳纳米管复合材料的导热性能

郭秀生,,于德梅,李琴,王洪武

西安交通大学理学院应用化学系

收稿日期:2014-07-18 修回日期:2014-09-25 出版日期:2015-01-26 发布日期:2015-01-26

Thermal Conductivity of Epoxy/Modified Multiwall Carbon Nanotube Nanocomposites

Received:2014-07-18 Revised:2014-09-25 Online:2015-01-26 Published:2015-01-26

摘要/Abstract

摘要： 采用硝酸氧化开口、银（Ag）填充和1,6己二胺接枝3种方法对多壁碳纳米管（MWCNTs）进行了改性，并用熔融共混法分别制备了各环氧树脂/改性MWCNTs纳米复合材料，通过扫描电子显微镜、透射电子显微镜、红外光谱等对复合材料的性能进行了测试。结果表明，各改性MWCNTs在环氧树脂中分散均匀，与树脂结合紧密无空隙；复合材料的热导率显著提高，其中改性MWCNTs含量为2.2 %（质量分数，下同）的开口多壁碳纳米管（Opened MWCNTs）和Ag填充多壁碳纳米管（Ag-filled MWCNTs）复合材料的热导率均达到0.20 W/（m·K），比纯环氧树脂提高了33.3 %。

Abstract: Multiwall carbon nanotubes (MWCNTs) were modified in three ways, namely, oxidizing with HNO3, filling with Ag, and grafting with hexamethylene diamine. Epoxy/modified MWCNTs composites were prepared and its thermal conductivity was tested. TEM images showed that the modified MWCNTs were dispersed in the epoxy matrix homogeneously. The thermal conductivity was improved obviously. As the modified MWCNTs was 2.2 %, the thermal conductivity of the composites containing Opened MWCNTs or Ag-filled MWCNTs reached 0.20 W/(m·K), 33.3 % higher than that of neat epoxy resin.

郭秀生, 于德梅, 李琴, 王洪武. 环氧树脂/改性碳纳米管复合材料的导热性能[J]. 中国塑料, 2015, 29(01): 23-28 .

环氧树脂/改性碳纳米管复合材料的导热性能

Thermal Conductivity of Epoxy/Modified Multiwall Carbon Nanotube Nanocomposites

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