Progress in the Crystallization Mechanism of Modified Polylactic Acid
The four crystal forms of PLA and their characteristics are introduced . The research progress of the brittleness , toughness and thermal stability of polylactic acid (PLA) modified by copolymerization ,blending ,irradiation and sealing in recent years is reviewed .And the crystallization mechanism of modified PLA is analyzed .Moreover ,the direction of future research is put forward .