Abstract: The crystallization behavior of glass fiber reinforced PA66 composites was characterized using DSC. Parameters of isothermal and nonisothermal crystallization kinetics were calculated using of Mo and Kissinger methods. It showed that glass fiber played as a heterogeneous nucleating agent, which increased the crystallization rate of PA66. When the glass fiber content was 30 %, the crystallization rate reached the maximum. The greater the cooling rate, the greater the degree of crystallinity. The crystallization activation energy of the composites were -297.22, -356.32, -481.00, and -365.59 kJ/mol, respectively, when the glass fiber contents were 0, 15 %, 30 %, and 45 %.

Key words: glass fiber, polyamide 66, composite, nonisothermal crystallization kinetics