Surface Induced Crystallization in Fiber Reinforced SemicrystallineThermoplastics Composites

摘要

This paper review the parameters influencing the appearance of a transcrystallinezone and the experimental techniques which have been used in the study of transcrystallization. A significant example is given for each characterization technique. The influence of transcrystallinity on the mechanical properties of the composite is then examined. Lastly, a theoretical approach based on the theory of heterogeneous nucleation and on the inducation time is presented, which allows to control the extent of the transcrystalline morphology. Little has been published on the mechanical aspect of transcrystallinity but this is an important aspect because this will ultimately determine if it is desireable to induce transcrystallization in semicrystalline thermoplastic composites. Although the main application of transcrystallization seems to be in fiber reinforced composites, results of studies with films as a substrate are directly applicable to fiber reinforced composites and have also been included in this chapter.