Research Progress on Effect of Transcrystallinity on Mechanical Properties of Natural Fiber Reinforced Polymer Composites

Natural fiber reinforced polymer composites are considered to be one of the most promising materials in the 21st century. As a heterogeneous nucleating agent, natural fibers change the crystallization mode of the polymer matrix and form a transcrystallinity (TC) at the interface. The change of crystal structure affects directly the interface properties and macro-mechanical properties of the composites. Many researchers have studied the growth mechanism of TC and the effect of TC on the properties of composites. They tried to put forward constructive proposals for improving the mechanical properties of natural fiber/thermoplastic polymer composites (NFTPC) through the analysis of TC structure and the exploration of theory. However, due to the particularity of structure and the complexity of mechanism, there are still many divergences on the growth mechanism of TC and the mechanism of its effect on the mechanical properties of NFTPC. The research progress of the effect of TC on mechanical properties of NFTPC was summarized and briefly analyzed, and the prospect of the research was putted forward in this paper. © 2021, Materials Review Magazine. All right reserved.