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A Comparative Study of Multiwalled Carbon Nanotube Based Polystyrene and Toughened Polycarbonate Nanocomposites- Juniper Publishers

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Juniper Publishers - Academic Journal of Polymer Science Authored by  Nisha Bagotia The main objective of this article is to describe the effect of different length (aspect ratio) of carbon nanotubes (CNTs) on the electrical conductivity and electromagnetic shielding effectiveness of polystyrene/l-MWCNT and toughened polycarbonate/s-MWCNT composites. Long and short MWCNTs having aspect ratio of ~666 - 1333 and ~157 respectively were used for melt-mixed with polystyrene and toughened polycarbonate in a micro compounder. The uniform dispersion of MWCNT in matrix was confirmed by scanning electron microscopy. The realization shielding effectiveness value of -21dB respectively for PS/l-MWCNT composites: and -27dB for TPC/s-MWCNT composites at 10phr loading of MWCNTs, which show their potential use in making of mechanically strong and light weight EMI shield used for commercial application. For more Open Access Journals in  Juniper Publishers ...

Energy Potential of Natural, Synthetic Polymers and Waste Materials -Juniper Publishers

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Juniper Publishers-  Academic Journal of Polymer Science Authored by  Michael Ioelovich In this paper, the energy potential of natural (polysaccharides, lignin, etc.), and synthetic polymers (polyolefins, etc.), polymer materials (plant biomass, plastics and their solid waste), as well as combustible liquids and gases derived from them has been studied. To determine calorific values of solid, liquid and gaseous substances, various experimental and calculation methods were used. For this purpose, improved equations based on chemical structure and elemental analysis was proposed. It was shown that the conversion of solid materials into liquids or gases reduces the yield of thermal energy. Therefore for the production of thermal energy, it is more profitable to burn the solid biomass or plastic than combustible liquids and gases, derived from them. Studies have shown that lipids and lignin increase, whereas moisture and ash reduce the calorific value of...

Microdroplet Chemistry: Difference of Organic Reactions between Bulk Solution and Aqueous Microdroplets- Juniper Publishers

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Juniper Publishers-  Academic Journal of Polymer Science Authored by Inho Nam Recent applications of microdroplet reactions are noted as reaction acceleration in confined environments and possible future scale-up synthesis compare to that of bulk phase reactions. Microdroplet reactions overcome the thermodynamic and kinetic challenges in an aqueous solution. Due to the microdroplet’s distinctive surface environment, the chemistry in Microdroplets significantly differs from that in the bulk solution. For more Open Access Journals in Juniper Publishers  please click on: https://juniperpublishers.com/ For more articles on Academic Journal of Polymer Science please click on: https://juniperpublishers.com/ajop/ To read more… FullText