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.
PY - 2022/2/2
Y1 - 2022/2/2
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.
KW - Fibers
KW - Organic compounds
KW - Carbon fiber
KW - Organic polymers
KW - Polymers
UR - http://www.scopus.com/inward/record.url?scp=85123531726&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/ARC/IH140100018
UR - http://purl.org/au-research/grants/ARC/DP180100094
UR - http://purl.org/au-research/grants/ARC/IC160100032
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 -