Development of biodegradable PLA/PBT nanoblends
作者: Luiza Gouvêa SantosLidiane Cristina CostaLuiz Antonio Pessan
作者单位: 1Department of Materials Engineering Federal University of Sao Carlos (UFSCar) Sao Carlos‐SP 13565‐970 Brazil
刊名: Journal of Applied Polymer Science, 2018, Vol.135 (12), pp.n/a-n/a
来源数据库: Wiley Journal
DOI: 10.1002/app.45951
关键词: biodegradablecrystallizationmechanical propertiesnanostructured polymers
原始语种摘要: ABSTRACT(#br)Poly(lactic acid)/poly(butylene terephthalate) (PLA/PBT) blends with 3, 5, and 10 wt % of PBT were produced in a twin‐screw extruder, with the addition of ethylene–glycidyl methacrylate copolymer as compatibilizer. An uncompatibilized PLA/PBT blend with 5 wt % of PBT was prepared for comparison studies. The epoxy reactive groups in the compatibilizer allowed modification of the interfacial tension in the blends and reduced the PBT dimensions. The crystallinity of the blends was studied, and its influence on mechanical properties was analyzed. Tensile tests showed an increase in strain at break from 3% for neat PLA to 49% for PLA with 3 wt % PBT, while the tensile modulus dropped from 3.59 GPa to 3.35 GPa for the same samples. Izod results showed a transition from a brittle...
全文获取路径: Wiley  (合作)

  • methacrylate 甲基丙烯酸酯
  • copolymer 共聚物
  • PBT 聚对苯二甲酸丁二醇酯
  • butylene 丁烯
  • PLA phase alternating line
  • crystallinity 结晶度
  • dropped 降下
  • produced 出品
  • modulus 系数
  • biodegradable 生物降解的