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| Effect of MAH Modifying Method on the Interfacial Compatibility of Starch/Polylactic Acid |
| ZUO Yingfeng1, WU Yiqiang1, GU Jiyou2, SHE Jiarong1, GUO Xin1, JIANG Ping1
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1 College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004;
2 Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education,Northeast Forestry University, Harbin 150040 |
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Abstract Starch/PLA composites were prepared by melt extrusion, in which corn starch and poly (lactic acid) (PLA) served as raw materials, maleic anhydride (MAH) as modifier. The effects of the two modifying methods by MAH, i.e. MAH as compatibilizing agent and MAH as esterifying agent of starch, on the compatibility of starch/PLA were studied. The melt processing property, mechanical properties and water resistance of composites were also tested. X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA) results showed that the esterified starch/PLA composite prepared by native starch dry-esterification modified with MAH and then blending with PLA had the better interface compatibility than native starch/MAH/PLA composite prepared with MAH as compatibilizer agent. Due to the influence of interfacial compatibility, the melt processing property, tensile strength, bending strength, elongation at break and water resistance of the esterified starch/PLA compo-sites were better than those of the native starch/MAH/PLA composites.
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Published: 25 August 2017
Online: 2018-05-07
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1 Zhong W, Ge J, Gu Z, et al. Study on biodegradable polymer materials based on poly (lactic acid). Ⅰ. Chain extending of low molecular weight poly (lactic acid) with methylenediphenyl diisocyanate[J]. J Appl Polym Sci,1999,74(10):2546.
2 Shogren R L, Doane W M, Garlotta D, et al. Biodegradation of starch/polylactic acid/poly (hydroxyester-ether) composite bars in soil[J]. Polym Degrad Stab,2003,79(3):405.
3 Mehta R, Kumar V, Bhunia H, et al. Synthesis of poly (lactic acid): A review[J]. J Macromolecular Science, Part C: Polymer Reviews,2005,45(4):325.
4 Zuo Yingfeng, Zhang Yanhua, Gu Jiyou, et al. Effect of coupling agent on the properties of glass fiber reinforced starch/polylactic acid composites[J]. Mater Rev:Res,2016,30(10):104(in Chinese).
左迎峰, 张彦华, 顾继友, 等. 偶联剂对玻璃纤维增强淀粉/聚乳酸复合材料性能的影响[J]. 材料导报:研究篇,2016,30(10):104.
5 Park J W, Lee D J, Yoo E S. Melt rheology of poly(lactic acid):Consequences of blending chain architecures[J]. Korea Polym J,1999,7(2):93.
6 Zhang J F, Sun X. Mechanical properties of poly (lactic acid)/starch composites compatibilized by maleic anhydride[J]. Biomacromolecules,2004,5(4):1446.
7 Wang N, Yu J, Ma X. Preparation and characterization of thermoplastic starch/PLA blends by one-step reactive extrusion[J]. Polym Int,2007,56(11):1440.
8 Yang Long, Zuo Yingfeng, Zhang Yanhua, et al. Effect of reaction temperature and time on properties of esterified starch prepared by dry method[J]. J Funct Mater,2013,44(15):2283(in Chinese).
杨龙, 左迎峰, 张彦华, 等. 反应温度和时间对干法制备马来酸酐淀粉酯性能的影响[J]. 功能材料,2013,44(15):2283.
9 Zuo Yingfeng, Zhang Yanhua, Yang Long, et al. Study on the synthesis process of maleic anhydride esterified starch by dry method[J]. J Southwest Forestry University,2013,33(5):88(in Chinese).
左迎峰, 张彦华, 杨龙, 等. 干法马来酸酐酯化淀粉的合成工艺研究[J]. 西南林业大学学报,2013,33(5):88.
10 Zuo Yingfeng, Gu Jiuyou, Yang Long, et al. Effects of maleic anhydride on the properties of dry method esterified starch/polylactic acid composite[J]. Acta Mater Compos Sin,2014,31(6):1182(in Chinese).
左迎峰, 顾继友, 杨龙, 等. MAH对干法酯化淀粉/聚乳酸复合材料性能影响[J]. 复合材料学报,2014,31(6):1182.
11 You Yingcai, Zhu Changying, Jiao Jingliang, et al. Studies on synthesis and biodegradability of starch/DL-lactide grafting copolymer[J]. Acta Polym Sin,2000(6):746(in Chinese).
由英才, 朱常英, 焦京亮, 等. 淀粉/DL-丙交酯接枝共聚物的合成和生物降解性能研究[J]. 高分子学报,2000(6):746.
12 Zuo Y, Gu J, Yang L, et al. Synthesis and characterization of maleic anhydride esterified corn starch by the dry method[J]. Int J Biol Macromol,2013,62:241.
13 Zuo Y, Gu J, Cao J, et al. Effect of starch/polylactic acid ratio on the interdependence of two-phase and the properties of composites[J]. J Wuhan University of Technology:Mater Sci Edition,2015,30(5):1108.
14 Maiti S N, Hassan M R. Melt rheological properties of polypropy-lene-wood flour composites[J]. J Appl Polym Sci,1989,37(7):2019.
15 Zuo Y, Gu J, Yang L, et al. Preparation and characterization of dry method esterified starch/polylactic acid composite materials[J]. Int J Biol Macromol,2014,64:174.
16 Wang Quanhua, Fu Zhongyu. The influence of melt index on flo-wing behavior of polypropylene and the tenacity of the produced fibers[J]. J Beijing Institute of Clothing Technology,2004,24(4):27(in Chinese).
王全华, 付中玉. 熔融指数对聚丙烯熔体流动性及纤维强度的影响[J]. 北京服装学院学报,2004,24(4):27. |
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2017, Vol. 31 
