石墨烯-纳米金刚石/硅橡胶复合材料的制备与性能  

reparation and properties of graphene-nano-diamond hybrid/silicone rubber composites

作　　者：赵文[1] 汤琦 徐一诺 季泽阳 曹兰[1] 宗成中[1] ZHAO Wen;TANG Qi;XU Yi-nuo;JI Ze-yang;CAO Lan;ZONG Cheng-zhong(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Sino-German College of Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]青岛科技大学中德工程学院,山东青岛266042

出　　处：《合成橡胶工业》2024年第1期78-78,共1页China Synthetic Rubber Industry

基　　金：Supported by Natural Science Foundation of Shandong Province(ZR 2020 QE 0720)。

摘　　要：利用多巴胺对几乎任何表现的适应性,将纳米金刚石负载到石墨烯表面,得到结构稳定的石墨烯-纳米金刚石杂化材料(GND)。控制GND中石墨烯与纳米金刚石的杂化比例,利用纳米金刚石和硅橡胶基体阻断石墨烯的导电通路,在保证绝缘的条件下提高了GND/硅橡胶复合材料的导热性能。研究结果表明,当GND的质量分数为4%且石墨烯与纳米金刚石的质量比为0.25/1.00时,GND/硅橡胶复合材料在25,50,75,100℃下的热导率均为最高,分别比只用纳米金刚石时提高20.5%、32.6%、52.8%和79.2%。It has been proved that adding a single type of thermal con-ductivity filler is challenging to achieve a high theoretical ther-mal conductivity value of polymer composites.However,adding mixed thermal conductive filers of different shapes to the poly-mer matrix makes it easier to form a thermally conductive path or reduce the voids in the matrix.Hence,the polymer com-posite material has better thermal conductivity than the single-shape thermal conductive filling material.In this work,a struc-turally stable graphene-nano-diamond hybrid(GND)is ob-tained by taking advantage of dopamine's adaptability to almost any expression.Graphene is a two-dimensional material,while nano-diamond is a zero-dimensional material.They can pro-duce cooperative thermal conductivity when both are added to the polymer matrix simultaneously.Moreover,nano-diamond and silicone rubber(SR)can block the conductive path of graphene and prepare thermal-insulating SR composite mate-rials.

关 键 词：硅橡胶 石墨烯 纳米金刚石 导热性能 

分 类 号：TB332[一般工业技术—材料科学与工程]