Abstract
The effects of dioctyl phthalate (DOP) loading on morphology and thermal and mechanical properties of the poly(vinyl chloride)/organically modified montmorillonite/DOP (PVC/O-MMT/DOP) nanocomposites are studied in this paper. Results of transmission electron microscope (TEM) indicate that O-MMT is partially intercalated and exfoliated in all PVC/O-MMT/DOP nanocomposites. It shows that the addition of DOP has no obvious influence on the dispersion of O-MMT in the PVC/O-MMT/DOP nanocomposites. Young’s modulus and tensile strength of the PVC/O-MMT/DOP nanocomposites are significantly decreased as the amount of DOP is increased. The thermal degradation onset temperature and glass transition temperature (Tg) of the PVC/O-MMT/DOP nanocomposites are decreased as the amount of DOP is increased. On the other hand, the elongation at break of the PVC/O-MMT/DOP nanocomposites is increased as the amount of DOP is increased. Also, the first thermal degradation weight loss (ΔY) of the PVC/O-MMT/DOP nanocomposites is increased as the amount of DOP is increased. While increasing DOP loading, the PVC/O-MMT/DOP nanocomposites change from a rigid product to a semirigid product and finally into a flexible product.
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The authors would like to appreciate the financial support provided by the Ministry of Economics Affairs, R.O.C (Project No. 93-EC-17-A-08-S1-023).
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Chen, CH., Liou, YL., Mao, CF. et al. Effects of dioctyl phthalate on the properties of poly(vinyl chloride)/organically modified montmorillonite nanocomposites. Polym. Bull. 78, 283–294 (2021). https://doi.org/10.1007/s00289-020-03109-3
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DOI: https://doi.org/10.1007/s00289-020-03109-3