Effects of Cooling Rate on the Crystallinity and Mechanical Properties of Thermoplastic Composites
作者： Woo I. Lee , Margaret F. Talbott , George S. Springer , Lars A. Berglund
DOI: 10.1177/073168448700600101
关键词: Polymer 、 Composite material 、 Ultimate tensile strength 、 Crystallinity 、 Materials science 、 Young's modulus 、 Composite number 、 Fracture toughness 、 Peek 、 Graphite
摘要: Tests were performed to evaluate the effects of crystallinity on mechanical properties PEEK 150P polymer and APC-2 graphite/PEEK composite. The tensile strengths, ten sile moduli fracture toughnesses polymer, mixed mode I II composite measured at crystallinities ranging from 27 43 percent by weight. results show that, in range studied, are not affected significantly changes crystallinity, while toughness depends strongly crystallinity. A model is also described which can be used calculate known applied cooling rate. validity was verified tests with polymer.
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