화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.3, 1104-1114, March, 2016
DOI10.1007/s11814-015-0202-z  Export Citation
Rheology, mechanical properties and crystallization behavior of glycidyl methacrylate grafted poly(ethylene octene) toughened poly(lactic acid) blends
Yan Zhao1, 2, Ye Zhang1, 2, Zonglin Li2, Hongwei Pan2, Qinglin Dong2, Lijing Han2, Huiliang Zhang2, †, and Lisong Dong2
  • 1Synthetic Resins and Special Fiber Engineering Research Center, Ministry of Education, Changchun University of Technology, Changchun 130012, China
  • 2Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun 130022, China
E-mail:
Poly(lactic acid) (PLA)/poly(ethylene octene) grafted with glycidyl methacrylate (POE-g-GMA denoted as GPOE) blends were prepared via simple melt compounding method at GPOE loadings from 5 to 20wt%. GPOE can significantly affect the physical properties of PLA. Compared to neat PLA, the elongation at break and impact strength of the blends were significantly improved. Scanning electron micrograph analysis revealed large numbers of cavities in the fracture surface of the blends, and the size of the cavities increased along with the increase of GPOE content in the PLA/GPOE blends. Furthermore, the overall crystallization rates were faster in the PLA/GPOE blends than that in neat PLA. However, the crystallization mechanism and crystal structure of these blends remained unchanged despite the presence of GPOE. The addition of GPOE decreased the degree of crystallinity of PLA. The toughened PLA could be of great use and importance for wider practical applications.
Keywords:PLA;GPOE;Blends;Mechanical Properties;Crystallization
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