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.
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Funded by the Natural Science Fundation of China and China Academy of Engineering Physics (10776014) and the Science and Technology Supporting Item of Jiangsu Province, China (BE2009159)
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Shi, J., Yang, X., Han, Q. et al. Polyurethane grafted attapulgite as novel fillers for nylon 6 nanocomposites. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 26, 615–619 (2011). https://doi.org/10.1007/s11595-011-0278-1
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DOI: https://doi.org/10.1007/s11595-011-0278-1