Comparative studies on thermal and toughness properties of polybenzoxazine composites with two functionalized graphene oxides |
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| Authors: | Linlin Zhu Liyuan Zhang Xi Li Xiaoqi Jin Tiejun Shi |
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| Affiliation: | 1. Anhui Provincial Engineering laboratory of Silicon-based Materials, School of Materials and Chemical Engineering of Bengbu University, Bengbu, People’s Republic of China;2. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, People’s Republic of Chinazhulinlin654@163.com;4. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, People’s Republic of China |
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| Abstract: | AbstractGraphene oxide (GO) was functionalized by polyether amine (PEA) via two methods which were one-pot modification in acetone (GON) and two steps with the intermediate product of GOCO-Cl generated (GONS). There were more PEA successfully grafted onto GO for GONS than GON. The onset polymerization temperatures of the benzoxazine (Bz) composites decreased by the inclusion of 1?wt% of GO, GON or GONS. Thermal stability of the polybenzoxazine (PBz) composites was significantly improved indicated from the increase of weight loss temperature. T10, T20 and T50 values of the composites with GONS were higher than that of the others. Toughness of PBzs may be enhanced by the incorporation of nanofillers, and GONS had stronger interfacial interaction with PBz matrix than GON. |
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| Keywords: | Graphene oxide functionalizing polybenzoxazine thermal toughness |
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