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TANG HONGYAN1,*
Poly(urethane-isocyanurate)(PUI) resin and glass fiber continuous strand mat reinforced PUI composites(CSM/PUI composites) were prepared by structural reaction injection molding process. ModeⅠinterlaminar fracture behaviors by use of double cantilever beam (DCB) tests were studied. It showed GⅠc varied significantly during crack propagation. GⅠc of CSM/PUI composites were higher than that of the pure PUI resin because of the additional force required to fracture fiber bridging in CSM/PUI composites. Comparative DCB tests were carried out to demonstrate the occurrence of fiber bridging. GⅠc varied markedly and were much dispersed, which would induce little variation when initial crack length was 40 mm. The fracture characteristics were analyzed by scanning electron microscope.
Poly(urethane-isocyanurate), Structural reaction injection molding(SRIM), Micro-phase separation, Interlaminar fracture toughness.
TANG HONGYAN, Interlaminar fracture properties of glass fiber reinforced poly (urethane-isocyanurate) composites prepared by SRIM process, Optoelectronics and Advanced Materials - Rapid Communications, 4, 9, September 2010, pp.1391-1395 (2010).
Submitted at: Aug. 2, 2010
Accepted at: Sept. 15, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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