期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 97, 期 -, 页码 6-11出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2014.03.019
关键词
Nanocomposites; Mechanical properties; Thermal properties
资金
- National Natural Science Foundation of China [50703017]
- PetroChina Innovation Foundation [2012D5006-0502]
- Key Laboratory of Oil 82 Gas Fine Chemicals, Ministry of Education 82 Xinjiang Uyghur Autonomous Region, Xinjiang University [XJDX0908-2012-1]
- Fundamental Research Funds for the Central Universities [LZUjbky2010-78]
- basic scientific research business expenses of the central university
- Open Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University
Due to the aggregation or restacking of graphene and the weak interactions between pristine graphene and polymeric matrices, a method to chemically functionalize graphene nanosheets by silylation was developed in this study. The silanized graphene oxide sheets were reduced to produce well water-soluble graphene derivatives after graphene oxide sheets silanized with 3-Methacyloxypropyltrimethoxysilane (MPS). The MPS-graphene oxide (MPS-GO) and MPS-reduced graphene oxide (MPS-RGO) could be redispersed in polar solvents, which could facilitate their incorporation into poly(methyl methacrylate) (PMMA) through in situ copolymerization method. The mechanical properties of the nanocomposites were studied after fabrication of the graphene/PMMA film through hot press process. And the MPSRGO/PMMA composites with 0.5 wt.% of MPS-RGO incorporation lead to a similar to 44% increases in tensile strength than that of the reduced graphene oxide (RGO)/PMMA composites. (C) 2014 Elsevier Ltd. All rights reserved.
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