Poly(lactic acid) is surely one of the most interesting commercially available biodegradable polymers. Being a slowly crystallizing material, it generally does not have the time to crystallize at the cooling rates involved in the common processing techniques. However, the properties induced by ...
Poly(lactic acid) is a biobased and compostable thermoplastic polyester that has rapidly evolved into a competitive commodity material over the last decade. One key bottleneck in extending the use of PLA is the control of its crystallinity. Understanding the crystallization behavior is particularly cru...
melt crystallizationDifferential Scanning Calorimetry (DSC) was used to evaluate the crystallization behavior of poly(lactic acid) and its blends with elastomer. It has been observed that the cold crystallization temperature of the blends decreased as the weight fraction of elastomer increased as well ...
Crystallization, Morphological, and Mechanical Response of Poly(Lactic Acid)/Lignin-Based Biodegradable CompositesLignincompositesmechanical propertiesphase interactionpoly(lactic acid)Green/bio-based composites of poly(lactic acid) and lignin were prepared by melt blending in a twin-screw extruder. Thermal ...
The influences of molecular structure, heterogeneous phases, and stress fields on its crystallization were also discussed.关键词: poly (lactic acid crystallization behavior crystal morphology DOI: 10.1016/S0379-4172(06)60085-1 被引量: 52 年份: 2006 ...
The half time of crystallization (τ1/2) of poly(l-lactic acid), measured in isothermal conditions after cooling from the melt, is reported in Fig. 1 as a function of temperature (Tc). As typical for polymers, crystallization of PLLA is slow in the temperature ranges close to the melting...
Differential Scanning Calorimetry (DSC) was used to evaluate the crystallization behavior of poly(lactic acid) and its blends with elastomer. It has been observed that the cold crystallization temperature of the blends decreased as the weight fraction of elastomer increased as well as the onset tempe...
crystallizationCrystallization of amorphous poly(lactic acid) (PLA) was investigated in various organic solvents, such as acetone, ethylacetate, diethylether, tetrahydrofurane, methanol, hexane, toluene, xylene, and o-dichlorobenene. Most of the solvents, except hexane, induced crystallization of ...
Many works have been published on the miscibility, morphology, crystallization kinetics and melting behavior of PLLA blends, such as poly(butylene succinate)/PLLA,3 poly(3-hydroxybutyrate)/ poly(L-lactic acid)5 and poly(ethylene succinate)/PLLA.6,7 The morphologies of the crystalline/crystalline ...
Crystallization kinetics of Poly-(lactic acid) with and without Talc: rheo-optical and calorimetric analysis A novel way using a polarized optical microscopy and statistical image analysis techniques for direct investigation of the crystallization kinetics and sph... Z Refaa,M Boutaous,F Rousset,.....