Thermal, Mechanical and Rheological Behavior of Poly(lactic acid)/Talc Composites

被引：67
|
作者：
Jain, Shikha [1 ]
Misra, Manjusri [2 ,3 ]
Mohanty, Amar K. [2 ,3 ]
Ghosh, Anup K. [1 ]
机构：
[1] Indian Inst Technol Delhi, Ctr Polymer Sci & Engn, New Delhi 110016, India
[2] Univ Guelph, Dept Plant Agr, Bioprod Discovery & Dev Ctr, Guelph, ON N1G 2W1, Canada
[3] Univ Guelph, Sch Engn, Guelph, ON N1G 2W1, Canada
来源：
JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2012年 / 20卷 / 04期
关键词：
Poly(lactic acid); Talc; Crystallinity; Spherulite morphology; Blown film; CRYSTALLIZATION BEHAVIOR; MELTING BEHAVIOR; TALC; MORPHOLOGY; KINETICS; BIOCOMPOSITES;
D O I：
10.1007/s10924-012-0500-z
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In the present study, influence of talc on thermal, mechanical and rheological behavior of PLA is investigated and the structure-property correlation for the PLA/talc composites is established. Poly(lactic acid)/talc composites are prepared by melt mixing of PLA with talc in twin screw extruder followed by blown film processing. Various characterizations techniques are used to evaluate thermal, morphological, mechanical and rheological behavior of PLA/talc composites and its blown film. DSC analysis showed that degree of crystallinity of PLA/talc composites was higher than that of neat PLA because of nucleating ability of talc. Spherulite morphology of PLA/talc composites showed that talc has increased nucleation density of spherulite having smaller radius than that of neat PLA. Talc is effective in enhancing tensile modulus and storage modulus of PLA due to reinforcing ability of talc particles.
引用
收藏
页码：1027 / 1037
页数：11
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