| Title |
Mechanical properties of carbon fibre reinforced composites modified with star-shaped butyl methacrylate / |
| Authors |
Pinto, Rochele ; Monastyreckis, Gediminas ; Aboelanin, Hamza Mahmoud ; Spacek, Vladimir ; Zeleniakiene, Daiva |
| DOI |
10.1177/00219983211065206 |
| Full Text |
|
| Is Part of |
Journal of composite materials.. London : SAGE. 2022, vol. 56, iss. 6, p. 951-959.. ISSN 0021-9983. eISSN 1530-793X |
| Keywords [eng] |
carbon fibre composites ; impact ; star-shaped polymers ; tensile |
| Abstract [eng] |
This article presents the possibility of strength improvement and energy absorption of carbon fibre reinforced polymer composites by matrix modification. In this study, the mechanical properties of bisphenol-A epoxy matrix and carbon fibre reinforced polymer composites were modified with four different wt.% of star-shaped polymer n-butyl methacrylate (Pn-BMA) block glycidyl methacrylate (PGMA). The tensile strength of the epoxy with 1 wt.% star-shaped polymer showed 128% increase in comparison to unmodified epoxy samples. Two different wt.% were then used for the modification of carbon fibre-reinforced polymer composite samples. Tensile tests and low-velocity impact tests were conducted for characterising modified samples. Tensile test results performed showed a slight improvement in the tensile strength and modulus of the composite. Low-velocity impact tests showed that addition of 1 wt.% star-shaped polymer additives increase composite energy absorption by 53.85%, compared to pure epoxy composite specimens. Scanning electron microscopy (SEM) analysis of post-impact specimens displays fracture modes and bonding between the matrix and fibre in the composites. These results demonstrate the potential of a novel star-shaped polymer as an additive material for automotive composite parts, where energy absorption is significant. |
| Published |
London : SAGE |
| Type |
Journal article |
| Language |
English |
| Publication date |
2022 |
| CC license |
|
