Toughening of polylactide by melt blending with methyl methacrylate-butadiene-styrene copolymer

doi:10.1002/app.36952

CORC > 化学研究所 > 中国科学院化学研究所

	Toughening of polylactide by melt blending with methyl methacrylate-butadiene-styrene copolymer
	Zhang, Huiliang 1; Liu, Nanan 1; Ran, Xianghai 1,2; Han, Changyu 1; Han, Lijing 1,2; Zhuang, Yugang 1; Dong, Lisong 1
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2012-09-25
卷号	125 页码:E550-E561
关键词	Polylactide Methyl Methacrylate-butadiene-styrene Blends Toughening
ISSN号	0021-8995
DOI	10.1002/app.36952
英文摘要	Brittle polylactide (PLA) was toughened by introducing 5-25 wt % of methyl methacrylatebutadienestyrene (MBS) copolymer. PLA/MBS blends were characterized by dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), dynamic rheometer, mechanical testing, scanning electron microscopy, and transmission electron microscope. From the result of DSC, MBS could act as an effective heterogeneous nucleation agent for PLA and significantly improved the degree of crystallinity of PLA. DMA results showed a single high temperature peak of Tg between that of pure PLA and that of the shell composition of the MBS, which suggested that PLA and the shell of MBS were compatible. With an increase of MBS content, the tensile strength of the blends decreased; however, the elongation at break and impact strength increased significantly which indicated the toughening effects of the MBS on PLA. It was found that the PLA matrix showed large plastic deformation (shear yielding) in the blend subjected the impact tests, which was an important energy-dissipation process and led to a toughened polymer blend. MBS could act as impact modifier of PLA. Rheological investigation demonstrated that there was a significantly dependence of viscosity on composition. When the MBS content increased, the viscosity began to increase. (C) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000304862900065
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/49053]
专题	中国科学院化学研究所
通讯作者	Dong, Lisong
作者单位	1.Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Huiliang,Liu, Nanan,Ran, Xianghai,et al. Toughening of polylactide by melt blending with methyl methacrylate-butadiene-styrene copolymer[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2012,125:E550-E561.
APA	Zhang, Huiliang.,Liu, Nanan.,Ran, Xianghai.,Han, Changyu.,Han, Lijing.,...&Dong, Lisong.(2012).Toughening of polylactide by melt blending with methyl methacrylate-butadiene-styrene copolymer.JOURNAL OF APPLIED POLYMER SCIENCE,125,E550-E561.
MLA	Zhang, Huiliang,et al."Toughening of polylactide by melt blending with methyl methacrylate-butadiene-styrene copolymer".JOURNAL OF APPLIED POLYMER SCIENCE 125(2012):E550-E561.