Effect of Plasticizers on Structure and Property of Polylactic Acid/Thermoplastic Starch Blends
Two plasticizers, tributyl citrate(TBC)and polyethylene glycol(PEG), were employed to plasticize poly(lactic acid)(PLA)blend/thermoplastic starch(TPS), regulated the rheological properties, improved the compatibility of PLA and TPS, melt blending properties, microstructure and mechanical proper-ties. The results indicated that:the modification effectiveness of TBC was remarkabler than that of PEG;TBC could increase better TBC dispersion, and the disperse size phase became smaller; The tensile strengthand the elongation at break of the PLA/TPS blend modified by TBC improved obviously, but the water absorp-tion was smaller.
NETL
NSTL
万方数据
维普
