Non‐isothermal crystallization of poly(etheretherketone) aromatic polymer composite

摘要: Non-isothermal crystallization kinetics of poly(ether-etherketone), PEEK, in the presence carbon fibers has been studied for APC-2 composites. Samples PEEK composite were cooled from melt at rates ranging −1 to −20°C/min. A differential scanning calorimeter was used monitor heat flow during non-isothermal crystallization. Effects cooling rate on temperature, degree crystallinity, and conversion studied. We show that Ozawa analysis fails provide an adequate description process PEEK. modified Avrami describe kinetics. For material, change primary free crystal growth slower secondary occurred about 50 percent relative all rates. can be characterized by higher initiation maximum greater processes when compared 450G neat resin