TY - JOUR
T1 - Mixed Surface Chemistry on Carbon Fibers to Promote Adhesion in Epoxy and PMMA Polymers
AU - Randall, James D.
AU - Eyckens, Daniel J.
AU - Sarlin, Essi
AU - Palola, Sarianna
AU - Andersson, Gunther G.
AU - Yin, Yanting
AU - Stojcevski, Filip
AU - Henderson, Luke C.
N1 - Funding Information:
The authors gratefully acknowledge Deakin University. This research was conducted with support from the Australian Research Council World Class Future Fibre Industry Transformation Research Hub (IH140100018), Discovery project (DP180100094), partial support by the Office of Naval Research (N62909-18-1-2024), and the ARC Training Centre for Lightweight Automotive Structures (IC160100032). The authors also thank the Carbon Nexus Production Facility for providing fibers. The authors acknowledge the facilities and the scientific and technical assistance of Microscopy Australia (formerly known as AMMRF) and the Australian National Fabrication Facility (ANFF) at Flinders University. The authors also acknowledge the expertise from Flinders Microscopy and Microanalysis (FMMA). This work made use of Tampere Microscopy Center facilities at Tampere University (33014 Tampere, Finland).
Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/1/20
Y1 - 2022/1/20
N2 - Carbon fibers were surface modified using mixed grafting solutions of methyl methacrylate and glycidyl (epoxy) methacrylate in ratios of 0:100; 25:75; 50:50; 75:25; and 100:0, respectively. When evaluated in an epoxy resin, all modified fibers showed significant improvement in fiber-to-matrix adhesion. Notably, the surface-grafted polymer with blends of methyl methacrylate:glycidyl methacrylate of 0:100 and 25:75, respectively, showed a >200% improvement in adhesion relative to control fibers. When evaluated in PMMA, again significant adhesion improvements were observed, though fibers grafted with ≥25% methyl methacrylate were statistically indistinguishable. This shows that by correctly tuning the surface chemistry an optimal covalent sizing can be developed for thermoplastic and thermoset resins. As an additional benefit, a significant improvement in the treated fiber's tensile strength and modulus was also observed.
AB - Carbon fibers were surface modified using mixed grafting solutions of methyl methacrylate and glycidyl (epoxy) methacrylate in ratios of 0:100; 25:75; 50:50; 75:25; and 100:0, respectively. When evaluated in an epoxy resin, all modified fibers showed significant improvement in fiber-to-matrix adhesion. Notably, the surface-grafted polymer with blends of methyl methacrylate:glycidyl methacrylate of 0:100 and 25:75, respectively, showed a >200% improvement in adhesion relative to control fibers. When evaluated in PMMA, again significant adhesion improvements were observed, though fibers grafted with ≥25% methyl methacrylate were statistically indistinguishable. This shows that by correctly tuning the surface chemistry an optimal covalent sizing can be developed for thermoplastic and thermoset resins. As an additional benefit, a significant improvement in the treated fiber's tensile strength and modulus was also observed.
U2 - 10.1021/acs.iecr.1c04409
DO - 10.1021/acs.iecr.1c04409
M3 - Article
AN - SCOPUS:85123531726
SN - 0888-5885
VL - 61
SP - 1615
EP - 1623
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 4
ER -