Crystallization behavior of polylactide nucleated by octamethylenedicarboxylic di(2-hydroxybenzohydrazide): Solubility influence
作者: Zhuyun ZhenQian XingRongbo LiXia Dong
作者单位: 1School of Materials Science and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, PR China
2Petrochina Petrochemical Research Institute, Beijing 102206, PR China
3Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
刊名: Thermochimica Acta, 2020, Vol.683
来源数据库: Elsevier Journal
DOI: 10.1016/j.tca.2019.178447
关键词: PolylactideOMBHCrystallizationNucleation effectSolubility
原始语种摘要: Abstract(#br)The crystallization ability of polylactide (PLA) was improved by the addition of a hydrazide compound, octamethylenedicarboxylic di(2-hydroxybenzohydrazide) (OMBH). The nucleation efficiency of OMBH significantly depended on its solubility during annealing treatment. The solubility of OMBH increased gradually with increasing the final annealing temperature ( T f ) and/or decreasing the addition concentration of OMBH ( C OMBH ). At a certain C OMBH ( e.g . 0.5 wt%), the crystallization of OMBH shifted to a lower temperature with increasing T f due to the increased OMBH solubility. This decreased the crystallization temperature, crystallization enthalpy, and isothermal crystallization rate of PLA. Additionally, at a certain T f ( e.g . 200 °C), the crystallization temperature...
全文获取路径: Elsevier  (合作)
影响因子:1.989 (2012)

  • enthalpy 
  • temperature 温度
  • Solubility 溶度
  • influence 影响
  • nucleation 成核
  • solubility 溶度
  • concentration 浓度
  • polylactide 聚交酯
  • nucleated 有核的
  • resulting 引起的