Effect of organically modified layered silicate nanoclay on the dynamic viscoelastic properties of thermoplastic polyurethane nanocomposites
作者: A.K. BarickD.K. Tripathy
作者单位: 1Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
刊名: Applied Clay Science, 2011, Vol.52 (3), pp.312-321
来源数据库: Elsevier Journal
DOI: 10.1016/j.clay.2011.03.010
关键词: Thermoplastic polyurethaneOrganoclayMelt intercalationNanocompositeMorphologyViscoelastic properties
原始语种摘要: Abstract(#br)Different formulations of organically modified layered silicate (OMLS) clay based medical grade thermoplastic polyurethane (TPU) nanocomposites were successfully prepared via melt blending followed by compression molding. The effect of incorporation of nanoclay on the spherulitic morphology of the TPU matrix was studied with a polarizing optical microscope (POM). The exfoliation/intercalation of organoclay was attributed to the TPU–organoclay interaction and shear stress during melt mixing. The effects of clay content and degree of clay dispersion on the rheological properties of nanocomposites were studied using a rubber process analyzer (RPA) with the help of dynamic strain, frequency, and temperature sweeps. The dynamic rheological studies show that the complex viscosity (...
全文获取路径: Elsevier  (合作)
影响因子:2.342 (2012)

  • organically 有机地
  • silicate 硅酸盐
  • polyurethane 聚氨酯
  • layered 成层的
  • properties 道具
  • thermoplastic 热塑性塑料
  • viscoelastic 粘弹性的
  • dynamic 动力学的
  • exfoliation 鳞剥
  • attributed 属性