Polyurethane grafted attapulgite as novel fillers for nylon 6 nanocomposites

  • Jianshe Shi (史建设)
  • Xujie Yang (杨绪杰)
  • Qiaofeng Han
  • Xin Wang
  • Lude Lu
Article

Abstract

Attapulgite fibers were modified by polyurethane, forming polyurethane grafted attapulgite (AT-PU), which was confirmed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Nylon 6/AT-PU nanocomposites of different modified attapulgite loadings were prepared by melt blending in a twin screw extruder. Scanning electron microscopy (SEM) observation on the fracture surfaces of the nanocomposites showed not only a uniform dispersion of AT-PU but also a strong interfacial adhesion with the matrix. Differential scanning calorimeter (DSC) and Thermogravimetric analyzer (TGA) were used to illustrate the influence of AT-PU particles on the thermal properties of the nylon 6/AT-PU nanocomposites. The results indicated that the addition of attapulgite probably induced the heterogeneous nucleation and was favorable for the formation of γ -crystalline form, and that the higher thermal stability was obtained for the composites.

Key words

polyurethane grafted attapulgite nylon 6 nanocomposites 

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Copyright information

© Wuhan University of Technology and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Jianshe Shi (史建设)
    • 1
  • Xujie Yang (杨绪杰)
    • 1
  • Qiaofeng Han
    • 1
  • Xin Wang
    • 1
  • Lude Lu
    • 1
  1. 1.Key Laboratory for Soft Chemistry and Functional Material of the Ministry EducationNanjing University of Science and TechnologyNanjingChina

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