Ultrasonic-microwave assisted synthesis of three-dimensional polyvinyl alcohol carbonate/graphene oxide sponge and studies of surface resistivity and thermal stability

被引:7
作者
Song, Yunna [1 ]
Li, Yuehai [2 ]
Li, Jihui [1 ]
Li, Yongshen [1 ]
Niu, Shuai [1 ]
Li, Ning [3 ]
机构
[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China
[2] Minnan Normal Univ, Dept Chem & Environm, Zhangzhou 363000, Peoples R China
[3] Real Estate CO LTD, CSCEC, Beijing 100070, Peoples R China
关键词
GO; PVAC/GO composite; Ultrasonic-microwave synergistic effect; 3D PVAC/GO sponge; Surface resistivity and thermal stability; GRAPHENE OXIDE; HIGHLY EFFICIENT; OIL; COMPOSITES; FABRICATION; ADSORBENTS; REDUCTION; POLYMER; METAL; FOAM;
D O I
10.1016/j.ultsonch.2017.12.037
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In the article, graphene oxide (GO) was prepared by flake graphite, nitric acid and peroxyacetic acid via the sonochemical method and characterized, and polyvinyl alcohol carbonate/GO composite (PVAC/GO composite) was synthesized by polyvinyl alcohol (PVA), dimethyl carbonate (DMC) and GO via the approach of transesterification in the rase of ultrasonic-microwave synergistic effects and characterized, and three-dimensional PVAC/GO sponge (3D PVAC/GO sponge) was manufactured by PVAC/GO composite via the foaming approach and characterized, and the thermal stability and surface resistivity of 3D PVAC/GO sponge were investigated. Based on those, it had been attested that PVAC polymer was structured by DMC and PVA and had the six-membered lactone rings and the ether bonds, and PVAC/GO composite was constituted by 2D GO lattice and PVAC polymer, and 3D PVAC/GO sponge was constructed by PVAC/GO composite, and the surface resistivity of 3D PVAC/GO sponge with 0.00, 0.60, 1.20, 1.80 and 2.40 g of GO were 9.07 x 107, 6.02 x 10(7), 4.65 x 10(7), 2.47 x 10(7) and 1.06 x 107 O/sq, and the thermal stability of 3D PVAC/GO sponge had improved.
引用
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页码:665 / 671
页数:7
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