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Full-Text Articles in Nanoscience and Nanotechnology
Structure And Properties Of Polypropylene-Nanoclay Composites, Raghavendra R. Hegde Dr
Structure And Properties Of Polypropylene-Nanoclay Composites, Raghavendra R. Hegde Dr
Raghavendra R Hegde Dr
The structure, morphology and mechanical properties of polypropylene-nanoclay composites with 1 to 15 wt.% nanoclay additives were investigated. Mixture of intercalated and exfoliated morphology was observed in nanocomposites. At higher weight percentage reinforcement (10–15 wt.%), up to 67 % improvement in tensile modulus is observed. At higher weight percentage, exclusion of clay additives at the boundary of spherulites was observed. This study illustrates that along with the thermodynamic driving force, spherulite formation also drives the ultimate morphology
Nanoclay Reinforced Fibers And Nonwovens, Raghavendra R. Hegde Dr
Nanoclay Reinforced Fibers And Nonwovens, Raghavendra R. Hegde Dr
Raghavendra R Hegde Dr
In this research, polypropylene fibers and nonwoven samples were produced with the commercial samples of nanoclay additives in semi-commercial processing machinery. Influence of two different types of nanoclay additives, at different add on levels on processing, structure and morphology of nonwovens is studied. The WAXD and DSC data showed some change in crystallinity and melting behavior indicating changes in the fiber morphology towards improved mechanical properties. Presence and extent of exfoliation of nanoclay in the polymer was verified using transmission electron microscopy (TEM). TEM image reveals intercalated and exfoliated morphology of nanocomposites. About 10 to 20 % increase in tensile …