02388nas a2200193   4500008004100000022001400041245010900055210006900164260009800233300001200331490000700343520154600350653003701896653006701933100002202000700002002022700002002042856013202062       2007                        eng d  a1042-714700aPhoto-stabilization of EPDM-clay nanocomposites: effect of antioxidant on the preparation and durability0 aPhotostabilization of EPDMclay nanocomposites effect of antioxid  aTHE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLANDbJOHN WILEY & SONS LTDcNOV  a891-9000 v183 a<p>The present study is to examine the photo-stabilization effect of an antioxidant on the photo-oxidation of ethylene-propylene-diene monomer (EPDM)-clay nanocomposites. During the preparation of EPDM-clay nanocomposites via melt processing antioxidants are usually incorporated along with clay, which allows phenolic antioxidant molecules to get adsorbed onto acidic clay platelets and their interaction with metallic impurities reduces the stabilizing efficiency of the antioxidant. The nanocomposites were obtained by solution dispersion followed by melt compounding of EPDM and organophilic montmorillonite (OMMT). The samples were characterized by conventional tools such as X-ray diffraction (XRD), Fourier Transform Infra Red (FT-IR) spectroscopy, and thermo-gravimetric analysis (TGA). It was found, upon photo-irradiation (lambda &gt; 290 nm) studies by following the changes in functional groups and surface morphology, that photo-degradation was lowered by the antioxidant and the efficiency of the antioxidant could be improved by initial incorporation of antioxidant in the EPDM matrix. In EPDM-clay nanocomposites, a stabilizing activity of the antioxidant was observed above some threshold concentration of the antioxidant. The relationship between the nanoclay reinforcement and stabilizing efficiency in terms of photo-oxidation and surface morphology for their applicability are discussed. The methodology adopted for this study is also justified through our observation. Copyright (C) 2007 John Wiley &amp; Sons, Ltd.</p>10aethylene-propylene-diene monomer10ananocomposites photo-degradation antioxidant and stabilization1 aLonkar, Sunil, P.1 aKumar, Pratheep1 aSingh, Raj, Pal  uhttps://library.ncl.res.in/content/photo-stabilization-epdm-clay-nanocomposites-effect-antioxidant-preparation-and-durability-0