摘要
近年来,芳纶纳米纤维(ANF)因其优异的机械性能和耐候性能而备受学者们的关注,然而,较低的热导率极大的限制了其应用领域.基于此,本文采用还原氧化石墨烯(RGO)作为添加剂来提高ANF薄膜的热传导性能,系统表征了RGO/ANF复合膜的组成、结构、润湿性和热导率.结果表明:RGO/ANF复合物的热导率随着RGO含量的增加而增加,40%的RGO添加量可使ANF薄膜的热导率提升540.1%,高的热导率源于RGO优良的热传导性能;复合膜的疏水性也随着RGO含量的增加而增加.
Recently,aramid nanofibers(ANF)have attracted much attention due to the excellent mechanical,insulating and high temperature resistance properties.However,the poor thermal conduction behaviors severely limit the application fields of ANF,especially under some harsh conditions.In this work,reduced graphene oxide(RGO)was used as an additive to improve the thermal conduction ability of ANF films,and the composition,structure,wettability,and thermal conductivity of the RGO/ANF composite films were systematically characterized.The results show that the thermal conductivity of RGO/ANF composite increases with the increased RGO content,and the 40%RGO content can enhance the thermal conductivity of ANF by 540.1%.The high thermal conductivity of the as-prepared composites is due to the high thermal conduction ability of RGO.Besides,the contact angle of the composite film also increases with the increased RGO content.
作者
金崭凡
陆赵情
俄松峰
宁逗逗
骆志荣
王瑾
JIN Zhan-fan;LU Zhao-qing;E Song-feng;NING Dou-dou;LUO Zhi-rong;WANG Jin(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,Key Laboratory of Paper Based Functional Materials of China National Light Industry,Shaanxi University of Science&Technology,Xi′an 710021,China;Kingdecor(Zhejiang)Co.,Ltd.,Quzhou 324022,China)
出处
《陕西科技大学学报》
CAS
北大核心
2021年第1期12-19,共8页
Journal of Shaanxi University of Science & Technology
基金
国家“十三五”重点研发计划项目(2017YFB0308300,2017YFB0308302)
浙江省重点研发计划项目(2019C04008)
华南理工大学制浆造纸工程国家重点实验室开放基金项目(201333)。
关键词
芳纶纳米纤维
还原氧化石墨烯
复合膜
热导率
润湿性
aramid nanofiber
reduced graphene oxide
composite film
thermal conductivity
wettability
