文献类型：期刊文献

中文题名：氧化石墨烯的疏水改性及在抗划伤透明涂层中的应用

英文题名：Hydrophobic Modification of Graphene Oxide and Its Application in Scratch-Resistant Transparent Coating

作者：王云[1];张玲[1];李春忠[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237

年份：2016

卷号：32

期号：8

起止页码：93

中文期刊名：高分子材料科学与工程

外文期刊名：Polymer Materials Science & Engineering

收录：CSTPCD;;EI(收录号：20163402729993);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金资助项目(21322607);上海市基础研究重点项目(15JC1401300);上海市重点科技攻关项目(14521100800);中央高校基本科研业务费专项资金资助

语种：中文

中文关键词：氧化石墨烯;疏水;改性;抗划伤;透明

外文关键词：graphene oxide; hydrophobie; modification; scratch resistance; transparent

摘要：以γ-甲基丙烯酰氧基丙基三甲氧基硅烷(MPS)为改性剂,对氧化石墨烯(GO)改性制得疏水氧化石墨烯(m-GO),并以此作为增强填料,以三羟甲基丙烷三丙烯酸酯(TMPTA)和氨酯-丙烯酸酯(UA)为基础,在聚碳酸酯(PC)表面制备了透明抗划伤涂层。研究了改性疏水GO对涂层抗划伤性能和光学性能的影响。结果表明,m-GO可以显著提高涂层在宏观尺度和微观尺度的抗划伤性能。与纯涂层相比,当m-GO的质量分数为0.1%时,涂层铅笔硬度增加3个等级达到2H,纳米压痕模量提高14%、硬度提高5%,摩擦系数降低15%。当m-GO的质量分数不超过0.1%时,涂层的可见光透过率在81%以上,雾度值在1.6%以下,涂层保持了良好的光学性质。
Hydrophobic grephene oxide （GO） was prepared from GO via modification with T-methacrylo,：y propyl trimethoxy silane （MPS）, and utilized as enforcing filler to fabricate transparent scratch-resistant coatings on polycarbonate （PC） based on trimethylol propane triacrylate （TMPTA） and urethane-acrylate （UA）. The influence of modified hydrophobic GO on scratch resistance and optical quality of composite coatings was investigated. The results show that, modified GO （m-GO） significantly can enhanced the scratch resistance of composite coatings from both macro-scale and nano-scale. Compared to neat coating, the pencil hardness of composite coating with mass fraction 0.1% m-GO reaches 2H, which is 3 grade higher than neat coating, the nano-indentation modulus and hardness are separately 14% and 5 % higher than those of the neat coating respectively, with the fraction coefficient decreasing by 15 %. The composite coatings with m-GO mass fraction at or below 0.1% present high optical quality, with the visible light transmittance above 81% and the haze value below 1.6%.