Solid State Science and Technology, Vol. 12, No 1 (2004) 78-81




F. M. Rais1, Z.A.Talib1, W. M. Z. W. Yunus2, W. D. W.Yusoff1, A. Kassim2


1Physics Department,

2Chemistry Department,

Faculty of Science and Environmental Studies

University Putra Malaysia

43400 UPM, Serdang








Natural rubber/clay nanocomposites were synthesized via solvent method with the presence of cetyltrimethylammonium bromide (CTAB) as the compatibilising agent. Compatibilising agent is very important to compatibilize the chemistry of the clay and the hydrophobic of the rubber matrix. The composites were divided into various percentages of organoclay and the nanostructure of the composite was investigated by Shimadzu X-ray diffractometry (XRD) with radiation at 60kV and 80mA. The XRD patterns of NR/clay nanocomposites showed that the characteristics diffraction peak of the organoclay disappeared for nanocomposite with one percent to five percent of organoclay in the composite. This is attributed to the homogenous dispersion of the organoclay in the natural rubber matrix and forming an exfoliated nanocomposite. Between seven to fifteen percent of organoclay, the graph slowly showed a strong peak at 2θ = 2.6 with the d-spacing =33.953. This happened because of the insertion  of  the  natural  rubber  in  between  the  clay  layer  to  form  an  intercalated nanocomposite. Thus,  by  varying  the  concentration of  modified  clay,  different  type  of NR/clay nanocomposite can be obtained.





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