Journal
HIGH PERFORMANCE POLYMERS
Volume 29, Issue 7, Pages 849-856Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954008316660369
Keywords
Polymer-matrix composites; glass fiber; viscosity and viscoelasticity; mechanical properties; structure-property relations; polyphenylene sulfide
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Funding
- National Science Foundation of China [51173174, 11502248]
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Two kinds of glass fibers with round (RdGF) and rectangle cross-sections (RcGF) were used to reinforce polyphenylene sulfide (PPS), respectively. In this way, the effect of fiber cross-section shape on rheological and mechanical properties of the composites was studied for the first time. Results showed that the viscosity of the composites reinforced with RcGF was much lower than that of RdGF composites, owing to their higher sensitivity to flow. As a result, PPS/RcGF composites could be injection-molded at high fiber contents. Moreover, RcGF showed a better reinforcing effect on mechanical properties of PPS. So the use of RcGF could better balance the contradiction between processability and reinforcing effect for glass fiber-reinforced composites. Various characterizations were carried out to reveal the reinforcing mechanism. This work demonstrated the importance of fiber cross-section shape on design and production of fiber-reinforced composites.
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