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    Eugenol Polysiloxane-Polycarbonate/Graphene Nanocomposite: Enhanced in Thermostability and Barrier Property

    Year: 2019

    Journal: Nanomaterials, Volume 9, DEC

    Authors: Pang, Xiaoyan; Chen, Mingde; Fu, Junwei; Lin, Zehua; Li, Yuming; Wu, Jianxin; Yan, Jie; Chen, Xunjun; Ge, Jianfang

    Organizations: Special Funds for Applied Science and Technology Research and Development of Guangdong Province [2015B090925022]; Guangdong PublicWelfare Fund and Ability Construction Project [2016A010103037]; Guangzhou Science and Technology Project [201604020074]; Innovation and Entrepreneurship Training Program for College Students [201911347009]

    Keywords: eugenol polysiloxane-polycarbonate; graphene; thermostability; barrier property

    Graphene (GR) was used to blend with eugenol polysiloxane-polycarbonate (Si-PC) copolymer to prepare a Si-PC/GR nanocomposite via a solution blending method and the impact of graphene on the properties of Si-PC/GR nanocomposite was investigated. The morphology and structure of the Si-PC/GR nanocomposite were characterized. Combining morphology and property analysis, the result showed that when the graphene dispersed uniformly in the Si-PC matrix, the mechanical properties, thermostability and barrier property of Si-PC/GR nanocomposite were enhanced. Compared with Si-PC copolymer, the pyrolytic temperature of Si-PC/2.5%GR nanocomposite at 5% weight loss was 434.3 degrees C, which was 20.6 degrees C higher than Si-PC copolymer; and the oxygen barrier value of Si-PC/1.5%GR nanocomposite decreased to 160.2 cm(3)/m(2) 24 h 0.1 MPa, which was 53.2 less than pure Si-PC. The mechanical properties of Si-PC/GR nanocomposite were enhanced with an appropriate additive amount of graphene. The hydrophobicity also had been enhanced at the meantime.
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