Transcription of Polymer Matrix Composites - Princeton University
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Polymer Matrix Composites - Princeton University
Chapter 3 Polymer 3 Polymer Matrix CompositesFINDINGSP olymer Matrix Composites (PMCs) are com-prised of a variety of short or continuous fibersbound together by an organic Polymer a ceramic Matrix composite (CMC), inwhich the reinforcement is used primarily to im-prove the fracture toughness, the reinforcementin a PMC provides high strength and stiffness. ThePMC is designed so that the mechanical loads towhich the structure is subjected in service aresupported by the reinforcement. The function ofthe Matrix is to bond the fibers together and totransfer loads between Matrix Composites are often dividedinto two categories: reinforced plastics, and ad-vanced Composites . The distinction is based onthe level of mechanical properties (usually strengthand stiffness); however, there is no unambiguousline separating the two.
most of the current market for advanced com-posites resins. Initially, the viscosity of these re-sins is low; however, thermoset resins undergo chemical reactions that crosslink the polymer chains and thus connect the entire matrix to-gether in a three-dimensional network. This proc-ess is called curing. Thermoses, because of their
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