Being a kind of linear polymer with high crystallinity, polyoxymethylene (POM) is one of the best engineering plastics which crystallization behavior affects its other properties greatly.

• 聚甲醛是（POM）一种分子链中含有（CH2-O-）链节，没有侧链的高结晶性线性聚合物，综合性能优越的工程塑料，但缺口冲击强度较低，在某些方面不能满足工业化生产的需要。