Effects of SEBS-g-MAH on the properties of injection moulded poly(lacticacid)/nano-calcium carbonate composites

被引：27
|
作者：
Chow, W. S. [1 ,2 ,3 ]
Leu, Y. Y. [1 ]
Ishak, Z. A. Mohd [1 ,2 ]
机构：
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia
[2] Univ Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, Malaysia
[3] Kaiserslautern Univ Technol, Inst Composite Mat, Inst Verbundwerkstoffe GmbH, D-67663 Kaiserslautern, Germany
来源：
EXPRESS POLYMER LETTERS | 2012年 / 6卷 / 06期
关键词：
nanocomposites; poly(lactic acid); nano-precipitated calcium carbonate; thermal properties; mechanical properties; CALCIUM-CARBONATE; POLY(LACTIC ACID); NANOCOMPOSITES; POLYPROPYLENE; MECHANISMS; CELLULOSE; POLYMERS; BLENDS;
D O I：
10.3144/expresspolymlett.2012.53
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(lactic acid)/nano-precipitated calcium carbonate (PLA/NPCC) composites toughened with maleated styrene-ethylene/butylene-styrene (SEBS-g-MAH) were prepared by melt-compounding on a co-rotating twin-screw extruder followed by injection moulding. The mechanical properties of the PLA nanocomposites were characterized by tensile, flexural and impact tests, while their morphology were investigated using transmission electron microscopy (TEM). The thermal properties of the composites were examined with differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). The elongation at break and impact strength of the PLA/NPCC nanocomposites increased significantly after addition of SEBS-g-MAH. Both nano-dispersed NPCC and small NPCC clusters were found in PLA matrix. Also, some SEBS-g-MAH encapsulated NPCC can be observed. Thermal stability of PLA/NPCC was enhanced prominently by the addition of SEBS-g-MAH.
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页码：503 / 510
页数：8
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