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氧化石墨烯改性不同表面性质的碳纤维/环氧树脂的微观形貌与动态热力学性能
Authors
代少伟
刘文军
+6 more
周川
周玉敬
李伟东
白华
胡晓兰
邱虹
Publication date
21 October 2019
Publisher
'Surface Science Society Japan'
Doi
Cite
Abstract
通过模压成型,用氧化石墨烯(GO)对四种碳纤维(CF)(CCF300、T700、CCF800、CCM40J)织物增强环氧树脂(EP)复合材料进行改性,通过材料的微观形貌、动态热力学性能等研究了GO对这四种不同表面性质的CF/EP复合材料的改性效果。研究表明,添加GO后,GO-EP对四种CF的浸润性均比EP明显提高,纤维与GO/EP间的界面黏接比与EP基体间的黏接明显改善;CF/EP复合材料的破坏主要发生在CF与EP的界面,而GO的存在使GO-CF/EP复合材料的破坏由CF与EP基体的界面向GO/EP区域过渡。CF的表面氧碳比和沟槽均会显著影响复合材料的玻璃化转变温度(Tg),CF中具有最高表面氧碳比的GO-CCF300/EP表现出最高的Tg,但沟槽更丰富的CCM40J和CCF300对CF/EP复合材料的Tg表现出更好的GO改性效果。航空科学基金(2016ZF68011)福建省科技创新平台建设计划(2014H2006)厦门大学石墨烯工业技术研究院资助项目(2014I2005
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Last time updated on 20/11/2020