Expanded graphite nanoplatelets as coupling agents in glass fiber reinforced polypropylene composites |
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| Affiliation: | 1. INFIQC, Departamento de Matemática y Física, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina;2. IFEG, Facultad de Matemática Astronomía y Física, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba. Argentina;1. Engineering Department, University of Ulster at Jordanstown, Shore Road, Newtownabbey BT370QB, Northern Ireland, UK;2. Department of Analytical Chemistry, Peiking University, 202 Chengfu Road, Haidian District, Beijing 100871, PR China;1. Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;2. Instituto de Química de São Carlos, Departamento de Físico-Química, Universidade de S. Paulo, Caixa Postal 780, São Carlos, Brazil;1. School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China;2. Department of Physics, Jining University, Qufu 273155, People’s Republic of China;1. Department of Mineral Processing Engineering, Shahid Bahonar University of Kerman, Kerman, Iran;2. Department of Materials Science and Engineering, Shahid Bahonar University of Kerman, Kerman, Iran |
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| Abstract: | The interfacial adhesion between E-glass fibers and various types of nanomodified polypropylene (PP) matrices have been investigated on single-fiber model composites. In particular, an evaluation of the fiber–matrix interfacial shear strength was performed by the fragmentation tests on model composites prepared by using PP matrices containing various amounts (up to 7 wt%) of expanded graphite nanoplatelets (xGnP).The presence of xGnP in the polymer matrix resulted in a remarkable increase of the interfacial shear strength values (up to a factor of about 6 for a 7 wt% content of xGnP) if compared to neat PP. Moreover, wettability measurements in various liquids evidenced that the work of adhesion of the polymer matrix with respect to glass fiber, was improved by the presence of xGnP. |
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| Keywords: | A Polymer–matrix composites (PMCs) B Interface/interphase B Fiber/matrix bond Single-fiber fragmentation test (SFFT) |
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