The use of rhodamine B-decorated graphene as a reinforcement in polyvinyl alcohol composites |
| |
Authors: | Zhenghai Tang Yanda Lei Baochun Guo Liqun Zhang Demin Jia |
| |
Affiliation: | 1. Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;2. Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China |
| |
Abstract: | Individually dispersed graphene colloid is prepared using cationic dye rhodamine B (RhB) as a non-covalent modifier. Characterizations by UV–vis, photoluminescence and Raman, the graphene-RhB interactions are shown to be cation-π and π-π. Subsequently, the obtained graphene is incorporated into polyvinyl alcohol (PVA) to fabricate PVA/graphene composites by simple solution casting. On addition of 1.0 wt% graphene, the tensile strength and tensile modulus are increased by 178% and 139%, respectively. Interestingly, the strain of the composites is greatly maintained, which is related to the uniqueness interfacial structure and morphology of the composites. This work provides a promising methodology to fabricate high performance graphene-based composites with superior strength and ductility by simultaneously combining the reinforcement of graphene sheets and the uniqueness interfacial structure. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|