Citation: Yan-ping Hao, Huan-huan Ge, Li-jing Han, Hui-liang Zhang, Li-song Dong. THERMAL AND MECHANICAL PROPERTIES OF POLYLACTIDE TOUGHENED WITH A BUTYL ACRYLATE-ETHYL ACRYLATE-GLYCIDYL METHACRYLATE COPOLYMER[J]. Chinese Journal of Polymer Science, ;2013, 31(11): 1519-1527. doi: 10.1007/s10118-013-1350-4 shu

THERMAL AND MECHANICAL PROPERTIES OF POLYLACTIDE TOUGHENED WITH A BUTYL ACRYLATE-ETHYL ACRYLATE-GLYCIDYL METHACRYLATE COPOLYMER

Yan-ping Hao ^1,2,3 ,
Huan-huan Ge ^1,2,3 ,
Li-jing Han ⁴ ,
Hui-liang Zhang ^4,, ,
Li-song Dong ⁴

1.
1. Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun 130022, ChinaShu-lin Sun
2.
2. Changchun University of Technology, Changchun 130012, China
3.
4.
Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun 130022, ChinaShu-lin Sun

Corresponding author: Hui-liang Zhang,
Received Date: 23 November 2012
Revised Date: 26 December 2012

Fund Project: This work was financially supported by the Science Technology Bureau of Jilin Province of China (No. 20126023).

In this work, a specific polylactide (PLA) 4032D was melt-mixed with a new toughener: butyl acrylate (BA), ethyl acrylate (EA) and glycidyl methacrylate (GMA) copolymer (BA-EA-GMA). DMA tests showed that PLA/BA-EA-GMA blends were partially miscible. The degree of crystallinity of PLA increased while the cold crystallization temperature shifted to higher temperatures with increasing BA-EA-GMA content. The SEM micrographs showed that PLA/BA-EA-GMA blends had a good dispersion and this phenomenon was in good agreement with their higher impact strength. The result showed that the adding of BA-EA-GMA has enhanced the flexibility of PLA/BA-EA-GMA blends as compared with pure PLA. The impact strength was changed from 3.4 kJ/m2 for pure PLA to 29.6 kJ/m2 for 80/20 PLA/BA-EA-GMA blend.
- Polylactide,
- Thermal properties,
- Mechanical properties
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