用膨胀计法研究了聚苯硫醚及其碳纤维复合材料的结晶动力学行为。发现其碳纤维复合材料对Avrami方程有较明显的偏离。聚苯硫醚具有中等的结晶速率,与PE、PMO等高聚物比较,它的σσ_c值、堆砌系数K_c以及结晶动力学方程中的前置指数G_0值较低。G_0是决定高聚物结晶速率的主要因素,ρ_a/ρ_c(值较小的高聚物有可能出现较高的结晶速率。 The dilatometer method was used to study the crystallization kinetics of polyphenylene sulfide and its carbon fiber composites. It is found that the carbon fiber composites deviate significantly from the Avrami equation. Polyphenylene sulfide has a moderate crystallization rate. Compared with polymers such as PE and PMO, the σσ_c value, the stacking coefficient K_c and the G_0 value in the crystallization kinetics equation are lower. G_0 is the main factor that determines the crystallization rate of polymer, and ρ_a / ρ_c (higher polymer with smaller value may have higher crystallization rate.