Effect of different clay treatment on morphology and mechanical properties of PVC-clay nanocomposites
By Chaoying Wan, Xiuying Qiao, Yong Zhang, Yinxi Zhang. 2003
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Three kinds of polyvinyl chloride (PVC)/montmorillonite (MMT) nanocomposites were prepared by melt blending of PVC with Na+-MMT and two organically modified MMTs. The nanostructure and relaxation behavior of the PVC/MMT nanocomposites were studied by wide angle X-ray diffraction (WAXD), transmission electron microscopy (TEM) and dynamic mechanical thermal analysis (DMTA). It was found that partially intercalated and disordered structure formed in PVC/Na+-MMT nanocomposites, while partially intercalated and partially exfoliated structures coexisted in the two PVC/organic MMT nanocomposites. The stiffness and impact strength of the three kinds of nanocomposites were improved simultaneously within 0.5–3 wt% MMT content with respect to that of bulk PVC. Below 5 wt% MMT content, the three kinds of nanocomposites retain good optical clarity. In addition, the addition of organic MMT should be kept below 5 wt% in order to enhance the mechanical properties and improve the processing stability of the PVC/MMT nanocomposites.
Subfields: Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/e82090950de2f6e742ab5d51001caa09d63166af
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Citations in the corpus
- Applications and implications of nanotechnologies for the food sector (2008, background): “For example, nanocomposites have been reported to have improved properties with regard to durability (Wang et al. 2003), temperature resistance (Alexandra and Dubois 2000; Kotsilkova et al. 2001), flame resistance (Ray et al. 2002), barrier properties (Alexandra and Dubois 2000; Xu et al. 2006), opt”