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Natural rubber (NR)/clay and styrene–butadiene rubber (SBR)/clay nanocomposites were prepared by mixing with aqueous sodium montmorillonite (Na+-MMT) clay dispersion by different concentrations of Na+-MMT ranging from 2 to 10 phr.… Click to show full abstract
Natural rubber (NR)/clay and styrene–butadiene rubber (SBR)/clay nanocomposites were prepared by mixing with aqueous sodium montmorillonite (Na+-MMT) clay dispersion by different concentrations of Na+-MMT ranging from 2 to 10 phr. These nanocomposites were irradiated with gamma radiation at doses from 10 to 100 kGy. X-ray diffraction (XRD) results indicated well dispersion of rubber latex into clay stacked layers and the platelets have a preferential orientation forming exfoliated NR/Na+-MMT nanocomposites while SBR/Na+-MMT form intercalated nanocomposites. Irradiation overall irradiation dose range together with clay loading improve the mechanical properties of rubber/Na+-MMT nanocomposites. However, SBR nanocomposite attains its higher value at 50 kGy, then decrease. Also, the thermal stability at 50 kGy is higher than 100 kGy. POLYM. COMPOS., 2016. © 2016 Society of Plastics Engineers
Journal Title: Polymer Composites
Year Published: 2017
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