Preparation and Characterization of Crystallization and Thermal Property of Poly(ethylene terephthalate)and Poly(lactic acid) Blends Promoted by Compatilizer

被引：0
|
作者：
Qiu L. [1 ]
Liu H. [1 ]
Zhao S. [1 ]
Liu R. [1 ]
机构：
[1] College of Ecology and Resources Engineering, Fujian Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan
来源：
Qiu, Liqing (wuyi-qlq@163.com) | 2018年 / Sichuan University卷 / 34期
关键词：
Blend; Compatilizer; Crystal morphology; Phase morphology; Thermal property;
D O I：
10.16865/j.cnki.1000-7555.2018.03.013
中图分类号：
学科分类号：
摘要：
Crystal and phase morphology, thermal properties of poly(ethylene terephthalate) and poly(lactic acid) blends with reactive compatilizer types, contents and different ratio for PET/PLA were investigated by SEM, DSC, XRD, TG, 1H-NMR and FT-IR etc. Results of SEM and DSC show that (PLLA-g-BDO) compatilizer types and contents have better influences on the interface compatibility of PET/PLA blends. With addition of compatilizer, there is a dramatic shift from clear to fuzzy with no obvious reunion particles for the phase, and an unique melting peak in DSC curve appears at the optimum mass of 8% compatilizer. DSC and XRD confirm that they will crystallize individually as cooling from melt, but crystallinity of the latter is more than the former, which reduce the whole crystallinity at a wide range crystallization temperature. When cooled, PLA component with flexible chain will crystallize first; simultaneously, PET component at higher crystallization temperature will crystallize first when melted. TG indicates that the PET/PLA ratio is necessary for thermal stability of materials. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：73 / 80
页数：7
相关论文
共 11 条
  • [1] McLauchlin A.R., Ghita O.R., Studies on the thermal and mechanical behavior of PLA-PET blends, J. Appl. Polym. Sci., 133, pp. 1-11, (2016)
  • [2] Bai Z.F., Dou Q., Non-isothermal crystallization kinetics of polypropylene/poly(lactic acid)/maleic anhydride-grafted polypropylene blends, J. Therm. Anal. Calorim., 126, pp. 784-794, (2016)
  • [3] Wu N.J., Crystallization and phase morphology of PP/PC/PP-g-GMA blends, Polymer Materials Science & Engineering, 27, 2, pp. 94-98, (2011)
  • [4] Zou H.T., Yi C.H., Wang L.X., Et al., Crystallization, hydrolytic degradation, and mechanical properties of poly (trimethylene terephthalate)/poly(lactic acid) blends, Polymer, 64, pp. 471-481, (2010)
  • [5] Liang H., Wu W., Qian Q., Et al., Melting crystallization of PET/PTT blends, Polymer Materials Science & Engineering, 23, 1, pp. 153-156, (2007)
  • [6] Chen H., Pyda M., Cebe P., Non-isothermal crystallization of polyethylene terephthalate and polylactic acid blends, Thermochim. Acta, 492, pp. 61-66, (2009)
  • [7] Li K., Mao B., Cebe P., Electrospun fibers of poly(ethylene terephthalate) blended with poly(lactic acid), J Therm. Anal. Calorim., 116, pp. 1351-1359, (2014)
  • [8] Xia X.L., Liu W.T., Tang X.Y., Degradation behaviors, thermostability and mechanical properties of poly (ethylene terephthalate)/polylactic acid blends, J. Cent. South Univ. Technol., 21, pp. 1725-1732, (2014)
  • [9] Fox T.G., Influence of diluent and copolymer composition on the glass transition temperature of a polymer system, Bull. Am. Phys. Soc., 1, pp. 123-128, (1956)
  • [10] Zhang X.M., Yin Z.H., Et al., Grafting of glycidyl methacrylate onto ethylene-propylene copolymer: preparation and characterization, J. Appl. Polym. Sci., 61, pp. 2253-2257, (1996)
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