The crystallinity of polyaryl ether ether ketone |
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| Authors: | A A Mehmet-Alkan J N Hay |
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| Institution: | (1) The School of Chemistry, The University of Birmingham, B15 2TT Birmingham, UK |
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| Abstract: | Measurement of the degree of crystallinity of the polymer matrix in a composite is complicated by the presence of the reinforcing additive. This is particularly the case in APC-2 in which as much as 70% can be carbon fibre. A First Law procedure, developed for determining the degree of crystallinity of PEEK, which involves direct measurement of the enthalpy changes associated with melting, crystallization and heat capacity changes, has found to be an effective method for the determination of the crystallinity of the PEEK matrix. The procedure has been applied to carbon fibre and glass fibre PEEK composites. |
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| Keywords: | amorphous APC-2 crystalline density DSC enthalpy of fusion glass fibre PEEK WAXS |
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