聚乙烯醇氧化石墨烯膦酸盐薄膜的制备及其热稳定性和力学性能研究
Preparation of polyvinyl alcohol graphene oxide phosphonate film and research of thermal stability and mechanical properties.
作者信息
Li Jihui, Song Yunna, Ma Zheng, Li Ning, Niu Shuai, Li Yongshen
机构信息
National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Hebei, Shijiazhuang 050024, China.
College of Huihua, Hebei Normal University, Hebei, Shijiazhuang 050024, China.
出版信息
Ultrason Sonochem. 2018 May;43:1-8. doi: 10.1016/j.ultsonch.2018.01.003. Epub 2018 Jan 2.
In this article, flake graphite, nitric acid, peroxyacetic acid and phosphoric acid are used to prepare graphene oxide phosphonic and phosphinic acids (GOPAs), and GOPAs and polyvinyl alcohol (PVA) are used to synthesize polyvinyl alcohol graphene oxide phosphonate and phosphinate (PVAGOPs) in the case of faint acidity and ultrasound irradiation, and PVAGOPs are used to fabricate PVAGOPs film, and the structure and morphology of GOPAs, PVAGOPs and PVAGOPs film are characterized, and the thermal stability and mechanical properties of PVAGOPs film are investigated. Based on these, it has been proved that GOPAs consist of graphene oxide phosphonic acid and graphene oxide phosphinic acid, and there are CP covalent bonds between them, and PVAGOPs are composed of GOPAs and PVA, and there are six-member lactone rings between GOPAs and PVA, and the thermal stability and mechanical properties of PVAGOPs film are improved effectively.
在本文中，使用片状石墨、硝酸、过氧乙酸和磷酸制备氧化石墨烯膦酸和次膦酸（GOPAs），并在弱酸性和超声辐照的情况下，使用GOPAs和聚乙烯醇（PVA）合成聚乙烯醇氧化石墨烯膦酸酯和次膦酸酯（PVAGOPs），然后使用PVAGOPs制备PVAGOPs薄膜，对GOPAs、PVAGOPs和PVAGOPs薄膜的结构和形貌进行表征，并研究PVAGOPs薄膜的热稳定性和力学性能。基于此，已证明GOPAs由氧化石墨烯膦酸和氧化石墨烯次膦酸组成，它们之间存在CP共价键，PVAGOPs由GOPAs和PVA组成，GOPAs和PVA之间存在六元内酯环，并且PVAGOPs薄膜的热稳定性和力学性能得到有效提高。
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