Open AccessEffect of sizing agent on interfacial properties of carbon fiber-reinforced PMMA composite
Author(s) -
Jian Li
Publication year - 2021
Publication title -
composites and advanced materials
Language(s) - English
Resource type - Journals
ISSN - 2634-9833
DOI - 10.1177/2633366x20978657
Subject(s) - materials science , composite material , wetting , contact angle , sizing , composite number , x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , scanning electron microscope , shear strength (soil) , methacrylate , polymer , chemical engineering , copolymer , chemistry , organic chemistry , environmental science , soil science , engineering , soil water
The surface treatment of carbon fibers (CFs) was carried out using a self-synthesized sizing agent. The effects of sizing agent on the surface of CFs and the interface properties of CF/polymethyl methacrylate (PMMA) composites were mainly studied. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and static contact angle were used to compare and study the CFs before and after the surface treatment, including surface morphology, surface chemical element composition, and wettability of the surface. The influence of sizing agent on the mechanical properties of CF/PMMA resin composite interface was investigated. The results show that after sizing treatment, the CF surface O/C value increased by 35.1% and the contact angles of CF and resin decreased by 16.2%. The interfacial shear strength and interlayer shear strength increased by 12.6%.