关键词: Kevlar纤维, MC尼龙6, 温度场, 有限差分法

Abstract: Numerical Simulation of cast-forming process and crystallization of Kevlar fiber reinforced MC nylon6 was performed with polymerization and latent heat as internal heat sources by finite difference method. Crystallization had great effect on the temperature of reaction system when the mould temperature ranged from 145 to 160℃. However, the effect weakened with the drop of mould temperature and disappeared as the mould temperature reached 175℃. The highest temperature of reaction system reduced with increase of the fiber mass. Compared with the simulated results, experimental results falled far behind at the reaction beginning, and they agreed well with each other later. What the reasons for the deviation between simulated results and experimental results are slow endothermic velocity, crystallinity tested by density method and fibers distributed non–uniformly.

Key words: Kevlar fiber, MC nylon 6, temperature field, finite difference method