Interface control of bamboo fibers/polylactic acid composites

The interface of the bamboo fibers/polylactic acid was controlled by alkali(NaOH) treatment,isocyanate(MDI) treatment and NaOH+MDI treatment,respectively.The results show that the NaOH treatment could further refine bamboo fibers and increase specific surface area,realizing the physical control of bamboo fibers/polylactic acid composites interface;MDI treatment could realize the chemical control of bamboo fibers/polylactic acid composites interface.All of the three kinds of the interface control methods could improve the mechanical properties of bamboo fibers/polylactic acid composites,among which NaOH+MDI treatment has the best positive effects on the interface properties of the composites,the tensile strength and impact strength of the bamboofibers/polylactic acid composites with interface control are increased 36.9% and 36.5%,respectively.