摘要
本文通过Improved Hummers法制备氧化石墨烯(GO),采用水合肼对其进行还原,制备了还原氧化石墨烯(r GO)。以3,3',4,4'-二苯甲酮四羧酸二酐为二酐单体,4,4'-二氨基苯甲烷和1,5-二(4-氨基-2-三氟甲基苯氧基)萘为二胺单体,以r GO为填料,采用原位聚合法制备了一系列r GO含量不同的共聚型聚酰亚胺复合薄膜(r GO/PI复合薄膜),并研究r GO对聚酰亚胺薄膜拉伸性能的影响。结果表明,r GO的加入可改善聚酰亚胺薄膜的拉伸性能,当r GO含量为2wt%时,复合薄膜的拉伸强度和拉伸模量分别达到73.9MPa和2.90GPa,与纯聚酰亚胺薄膜相比分别提高了16.8%和3.9%。
In this paper,graphene oxide(GO)was prepared by the Improved Hummers method and reduced with hydrazine hydrate to prepare reduced graphene oxide(rGO).A series of copolymerized polyimide composite films(rGO/PI composite films)with different rGO contents were prepared by in-situ polymerization using 3,3',4,4'-benzophenone tetracarboxylic dianhydride as the dianhydride monomer,4,4'-diaminophenylmethane and 1,5-bis(4-amino-2-trifluoromethylphenoxy)naphthalene as the diamine monomer and rGO as the filler.The effect of rGO on the tensile properties of polyimide films was also investigated.The results indicated that the introduction of rGO improved the tensile properties of the polyimide films.When the content of RGO was 2wt%,the tensile strength and modulus of the composite films reached 73.9MPa and 2.90GPa,respectively,which were increased by 16.8%and 3.9%compared to those of the pure polyimide film.
作者
王志鹏
刘彦坚
吕克宇
魏浩
王强
张春红
WANG Zhi-peng;LIU Yan-jian;LV Ke-yu;WEI Hao;WANG Qiang;ZHANG Chun-hong(Naval Armament Division,Beijing 100161,China;College of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《化学工程师》
CAS
2020年第11期1-4,29,共5页
Chemical Engineer
基金
国家自然科学基金(51373044)
装备预先研究项目(JZX7Y20190248000801)。
关键词
还原氧化石墨烯
原位聚合
聚酰亚胺薄膜
拉伸性能
reduced graphene oxide
in-situ polymerization
polyimide film
tensile properties
