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Received June 27, 2015
Accepted September 22, 2015
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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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†
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
hlzhang@ciac.jl.cn
Korean Journal of Chemical Engineering, March 2016, 33(3), 1104-1114(11), 10.1007/s11814-015-0202-z
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Abstract
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
References
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Cartier H, Hu GH, J. Mater. Sci., 35(8), 1985 (2000)
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Fischer EW, Sterzel HJ, Wegner G, Colloid Polym. Sci., 251, 980 (1973)
Zheng M, Luo X, Polym. -Plast. Technol. Eng., 52, 1250 (2013)
Zhang HL, Liu NA, Ran XH, Han CY, Han LJ, Zhuang YG, Dong LS, J. Appl. Polym. Sci., 125, 550 (2012)
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Hao YP, Liang HY, Bian JJ, Sun SL, Zhang HL, Dong LS, Polym. Int., 10, 1002 (2013)
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Van GM, Palmen J, Rheol. Bull., 67, 5 (1998)
Wu DF, Zhang YS, Zhang M, Yu W, Biomacromolecules, 10(2), 417 (2009)
Wang XM, Zhuang YG, Dong LS, J. Appl. Polym. Sci., 126(6), 1876 (2012)
Finkenstadt VL, Liu CK, Cooke PH, Liu LS, Willett JL, J. Polym. Environ., 16, 19 (2008)
Lazzeri A, Bucknall CB, J. Mater. Sci., 28(24), 6799 (1993)
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Avrami MJ, Chem. Phys., 8, 212 (1940)
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Kim GS, Kim MS, Kim BW, Korean Chem. Eng. Res., 50(3), 582 (2012)
Tsuji H, Ikarashi K, Fukuda N, Polym. Degrad. Stabil., 84, 515 (2004)
