Enhancing the interfacial strength of glass/epoxy composites using ZnO nanowires

Autor: Gowrisankar Chidambaram, Gowthaman Swaminathan, Gaëlle Henri, Chandrasekhar Udayagiri, Chandrakumar Palanisamy
Rok vydání: 2017
Předmět:
Zdroj: Composite Interfaces. 25:151-168
ISSN: 1568-5543
0927-6440
DOI: 10.1080/09276440.2017.1341790
Popis: This paper investigated the application of ZnO nanowires (ZnO NW) to enhance the interfacial strength of glass/epoxy composites. ZnO NW were grown on glass fibers by hydrothermal method, tensile properties of bare and ZnO NW coated fibers were measured by single fiber tensile testing, wettability of fiber with resin was studied by contact angle measurements and finally the interfacial strength and mechanisms were determined by single fiber fragmentation testing of glass/epoxy composites. The surface coverage of ZnO NW on glass fibers was fairly uniform without formation of major clusters. The coating of ZnO NW slightly reduced the tensile strength and improved the tensile modulus of fibers. Wettability tests showed reduction in contact angles for ZnO NW coated fibers because of enhanced wetting and infiltration of epoxy resin into nanowires. In fragmentation testing of microcomposites, smaller and concentrated interfacial debonding zones for ZnO NW coated fibers indicated good stress transfer and ...
Databáze: OpenAIRE