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Title: | Flammability and thermomechanical properties of dianhydride-modified polybenzoxazine composites reinforced with carbon fiber |
Authors: | Jubsilp C. Panyawanitchakun C. Rimdusit S. |
Keywords: | Advanced composite materials Carbon fiber composite Degradation temperatures Limiting Oxygen Index Mechanical and thermal properties Mechanical integrity Self-extinguishing Thermomechanical properties Carbon fibers Elastic moduli Reinforcement |
Issue Date: | 2013 |
Abstract: | Composites based on carbon fiber (CF) and benzoxazine (BA-a) modified with PMDA were investigated. The flammability of the carbon fiber composites was examined by limiting oxygen index (LOI) and UL-94 vertical tests. The LOI values increased from 26.0 for the CF/poly(BA-a) composite to 49.5 for the CF-reinforced BA-a/PMDA composites as thin as 1.0 mm and the CF-reinforced BA-a/PMDA composites were also achieved the maximum V-0 fire resistant classification. Moreover, the incorporation of the PMDA into poly(BA-a) matrix significantly enhanced the Tg and the storage modulus (E') values of the CF-reinforced BA-a/PMDA composites rather than those of the CF/poly(BA-a). The Tg values and storage moduli of the obtained CF-reinforced BA-a/PMDA composites were found to have relatively high value up to 237°C and 46 GPa, respectively. The CF-reinforced BA-a/PMDA composites exhibited relatively high degradation temperature up to 498°C and substantial enhancement in char yield with a value of up to 82%, which are somewhat higher compared to those of the CF/poly(BA-a) composite, i.e., 405°C and 75.7%, respectively. Therefore, due to the improvement in flame retardant, mechanical and thermal properties, the obtained CF-reinforced BA-a/PMDA composites exhibited high potential applications in advanced composite materials that required mechanical integrity and self-extinguishing property. © 2013 Society of Plastics Engineers. |
URI: | https://ir.swu.ac.th/jspui/handle/123456789/13956 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888012673&doi=10.1002%2fpc.22615&partnerID=40&md5=bbd0dda1e4abf806d9416eb3bd98fe6b |
ISSN: | 2728397 |
Appears in Collections: | Scopus 1983-2021 |
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