Preparation and Performance of Graphene Oxide Modified Polyurethane Thermal Conductive Insulating Adhesive  

作　　者：LIU Yunxue KANG Xiaotian FAN Zhaorong GU Yaxin LIU Peng 刘运学;KANG Xiaotian;FAN Zhaorong;GU Yaxin;刘鹏(School of Materials Science and Engineering,Shenyang Jianzhu University,Shenyang,110168,China)

机构地区：[1]School of Materials Science and Engineering,Shenyang Jianzhu University,Shenyang,110168,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2022年第5期1025-1031,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Liaoning Natural Science Fund Project (No.20180550432);Liaoning Provincial Science and Technology Department Doctoral Research Start-Up Fund Project (No.2020-BS-158);Liaoning Provincial Department of Education Fund Project (Nos.lnfw202014 and LJKQZ2021060)。

摘　　要：A novel graphene oxide (GO) modified polyurethane thermal conductive insulating adhesive with small addition and excellent insulation properties was prepared by in-situ polymerization using GO as thermal conductive filler.The effects of GO content on the mechanical performance,thermal conductivity,thermal stability and insulation properties of the modified polyurethane adhesive were studied.The results showed that the tensile strength and elongation at break of polyurethane adhesive increased at first and then decreased with the increase of GO content.The thermal conductivity and thermal decomposition temperature of GO/PU composite adhesive can be effectively improved by adding appropriate amount of GO.The tensile strength,thermal conductivity and thermal decomposition temperature of polyurethane adhesive reached the maximum when GO content was 1.5 wt%.The novel GO-modified polyurethane adhesive exhibited good insulation property.The development of GO/PU thermal conductive adhesive will provide a facile method for effectively solving the “trade-off” problem between low filling and high thermal conductivity.

关 键 词：graphene oxide POLYURETHANE thermal conductive insulating adhesive performance 

分 类 号：TQ436[化学工程]