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Toughening polylactide with polyether-block-amide and thermoplastic starch acetate: Influence of starch esterification degree
Zhou, Linyao1,2; Zhao, Guiyan1; Feng, Yulin1; Yin, Jinghua1; Jiang, Wei1
2015-08-20
Source PublicationCARBOHYDRATE POLYMERS
Volume127Pages:79-85
AbstractNative corn starch was esterified with acetic anhydride and plasticized with glycerol to give the thermoplastic starch acetate (TPSA). TPSA was blended with polylactide (PLA) and polyether-block-amide-graft-glycidyl methacrylate (PEBA-g-GMA) to obtain biodegradable PLA/PEBA-g-GMA/TPSA blends with high notched impact resistance and low cost. Compared with PLA/PEBA-g-GMA blends, as much as 9 wt% expensive PEBA-g-GMA elastomer could be substituted by the slightly acetylated thermoplastic starch while retaining high impact strength. The mechanical properties depended on the esterification degree of starch acetate. The impact strength, tensile strength and elongation at break increased to the peak value with increasing the esterification degree from 0 to 0.04, thereafter they decreased on further increasing the esterification degree. The morphological results showed that the TPSA particles were smaller and more uniform at the optimum esterification degree of 0.04, leading to the peak value of the mechanical properties. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordPolylactide (Pla) Impact Resistant Starch Acetate Esterification Biodegradable Polymer Blends
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/28169
Collection高分子物理与化学实验室
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Linyao,Zhao, Guiyan,Feng, Yulin,et al. Toughening polylactide with polyether-block-amide and thermoplastic starch acetate: Influence of starch esterification degree[J]. CARBOHYDRATE POLYMERS,2015,127:79-85.
APA Zhou, Linyao,Zhao, Guiyan,Feng, Yulin,Yin, Jinghua,&Jiang, Wei.(2015).Toughening polylactide with polyether-block-amide and thermoplastic starch acetate: Influence of starch esterification degree.CARBOHYDRATE POLYMERS,127,79-85.
MLA Zhou, Linyao,et al."Toughening polylactide with polyether-block-amide and thermoplastic starch acetate: Influence of starch esterification degree".CARBOHYDRATE POLYMERS 127(2015):79-85.
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