02225nas a2200241   4500008004100000022001400041245013900055210006900194260006900263300001200332490000700344520129300351653003701644653001501681653003901696653001601735653002601751653003701777100001401814700001401828700001601842856012501858       2005                        eng d  a0254-058400aDegradability of composites, prepared from ethylene-propylene copolymer and jute fiber under accelerated aging and biotic environments0 aDegradability of composites prepared from ethylenepropylene copo  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcAUG  a458-4690 v923 a<p>The utilization of natural fiber as reinforcement for the thermoplastic composites is growing not only for ecological concern but also for wide range of applications. In the present article, three types of composites were prepared by melt mixing of ethyl ene-propylene (EP) copolymer and (i) 3% NaOH treated jute fiber, (ii) 17.5% NaOH treated jute fiber and (iii) commercial microcrystalline cellulose powder using maleated EP copolymer as compatibilizer. The obtained composites were characterized by Fourier transform infrared spectroscopy (FTIR), Thermal gravimetric analysis (TGA) and microscopic measurements. The durability of the composites was evaluated under polychromatic irradiation (λ &amp;GE; 290 nm) and composting condition for different time intervals. It was found that the treatments on the natural fiber have influenced the service life of the end product. Composites made from microcrystalline cellulose showed better mechanical properties as well as photo-resistance. The specimen containing 3% NaOH treated fiber exhibited relatively lowest photo-resistance and biosusceptibility. It was found that the composites were less durable under both abiotic and biotic conditions in comparison of the neat polymer matrix. © 2005 Elsevier B.V. All rights reserved.</p>10aaccelerated aging and composting10acomposites10aethylene-propylene (EP) copolymers10ajute fibers10amechanical properties10amicrocystalline cellulose powder1 aKumar, AP1 aSingh, RP1 aSarwade, BD  uhttps://library.ncl.res.in/content/degradability-composites-prepared-ethylene-propylene-copolymer-and-jute-fiber-under-001971nas a2200205   4500008004100000022001400041245013600055210006900191260007700260300000900337490000700346520118200353653002301535653002601558653001901584653000901603100001501612700001401627856012401641       2005                        eng d  a0038-905600aGreen nanocomposites from renewable resources: effect of plasticizer on the structure and material properties of clay-filled starch0 aGreen nanocomposites from renewable resources effect of plastici  aPO BOX 10 11 61, D-69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcJAN  a8-150 v573 a<p>Nanocomposites of starch were prepared via different addition sequences of plasticizer and clay by the solution method. The extent of dispersion of the filler was evaluated by wide angle X-ray diffractometry (WAXD) in the resulting composites. Thermal stability, mechanical properties and water absorption studies were conducted to measure the material properties whereas FT-IR spectroscopy was used to study the microdomain structure of composites. The sequence of addition of components (starch/plasticizer (glycerol)/clay) had a significant effect on the nature of composites formed and accordingly properties were altered. Glycerol and starch both have the tendency to penetrate into the silicate layers but penetration of glycerol is favored owing to its smaller molecule size. The filler dispersion becomes highly heterogeneous and the product becomes more brittle when starch was plasticized before filling with clay due to the formation of a bulky structure resulting from electrostatic attractions between starch and plasticizer. It was concluded that best mechanical properties can be obtained if plasticizer is added after mixing of clay in the starch matrix.</p>10aclay-filled starch10aeffect of plasticizer10aNanocomposites10aWAXD1 aPandey, JK1 aSingh, RP  uhttps://library.ncl.res.in/content/green-nanocomposites-renewable-resources-effect-plasticizer-structure-and-material-001593nas a2200241   4500008004100000022001400041245006000055210006000115260009900175300001200274490000700286520082300293653001901116653001601135653002201151653001901173653001501192100001501207700001401222700001401236700001401250856008701264       2005                        eng d  a0141-391000aOverview on the degradability of polymer nanocomposites0 aOverview on the degradability of polymer nanocomposites  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcMAY  a234-2500 v883 a<p>Polymer nanocomposites have attracted great attention world wide from both academic and industrial points of view. The material properties of polymers can be enhanced dramatically by incorporating layered silicates at fairly low concentrations. The durability of any material depends upon several factors e.g. light, heat, microwaves, mechanical abrasion etc. The study and the effect of these factors on the performance are essentially required to extend the application limits. The durability of polymer nanocomposites has been evaluated under different environments. The present review describes the durability of different polymer nanocomposites mainly under thermal- and photoageing. Biodegradable nanoeomposites of different polymers are also discussed briefly. (c) 2004 Elsevier Ltd. All rights reserved.</p>10aBiodegradation10aDegradation10alayered silicates10aNanocomposites10aweathering1 aPandey, JK1 aReddy, KR1 aKumar, AP1 aSingh, RP  uhttps://library.ncl.res.in/content/overview-degradability-polymer-nanocomposites-0