Mechanical, Thermal, Rheological and Morphological Properties of Binary and Ternary Blends of PLA, TPS and PCL

被引：79

作者：

Mittal, Vikas ^{[1
]}

Akhtar, Tehsin ^{[1
]}

Matsko, Nadejda ^{[2
]}

机构：

[1] Petr Inst, Dept Chem Engn, Abu Dhabi, U Arab Emirates

[2] Graz Ctr Electron Microscopy, Graz, Austria

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2015年 / 300卷 / 04期

关键词：

atomic force microscopy (AFM); crystallization; biodegradable; intermixing; modulus; morphology; POLY(LACTIC ACID); STARCH; BEHAVIOR; COMPATIBILIZATION; POLYCAPROLACTONE; PLASTICIZERS; MISCIBILITY; POLYLACTIDE; POLYESTERS;

D O I：

10.1002/mame.201400332

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Binary and ternary blends containing different compositions of poly-l-lactide (PLA), thermoplastic starch (TPS) and poly(e-caprolactone) (PCL) polymers were generated by melt extrusion procedure. The onset of thermal degradation was observed to increase from 300 degrees C to 327 degrees C when the PCL content was increased form 0% to 50%. DSC analysis further revealed that TPS addition resulted in slight lowering of peak melting temperature of PLA and PCL. Tensile modulus value of 1591 MPa was measured for PLA(50)TPS(50) blend, which decreased to 866 MPa for the PLA(50)PCL(50) blend. Storage modulus was also observed to decrease as a function of PCL content in the blends. The miscibility analysis revealed the impact of PCL in enhancing the intermixing of the polymers in the ternary blends.

引用

页码：423 / 435

页数：13

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