Global ETD Search
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Showing 1 to 6 of 6 for “"Polypropylenes"”.
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Properties and foaming behaviour of thermoplastic olefin blends based on linear and branched polypropylene
The recent commercial availability of branched polypropylenes (PPs) combined with the advent of single-site metallocene catalysts has ignited interest in thermoplastic polyolefin blends (TPOs) with controlled melt strength. These blends have potential applications in a variety of industries …
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Melt electrospinning of thermoplastic polymers
… by blending of different molecular weights polypropylenes, by addition of small molecules (sodium stearate) and by increasing of the melt temperature. The aim is to recognize the melt viscosity limits which enable us to obtain ultra-fine polypropylene fibers. In the following chapter, …
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Polymer-organoclay nanocomposites by melt processing
… exfoliation in these systems. Amine grafted polypropylenes and a conventionally used maleic anhydride grafted polypropylene were used as compatibilizers for polypropylene based nanocomposites to improve the organoclay exfoliation. A series of ethylene vinyl acetate copolymers, the polarity of …
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Safe formulations of polyethylene and polypropylene: Exploring non-estrogenic antioxidants
… may result in even more stable non-estrogenic polypropylenes and HDPEs, as well as increased fundamental knowledge of polymer stability and degradation.
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An investigation into thermally induced structural modifications in isotactic polypropylene and its blends with amorphous terpolymers
… quenching exist between various commercial grade polypropylenes. <br/><br/>DSC studies on the samples quenched rapidly from the molten state revealed the presence of a double melting endotherm. Further DSC investigations using controlled quenching rates <i>in situ </i>showed that multiple peaks …
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Efficacy and Safety Comparison of Robotic-Assisted Sacrocolpopexy Using Light-Weight and Heavy-Weight Polypropylene Mesh
AIMS: This study compares long-term surgical outcomes of light-weight polypropylene mesh (LWPPM) and heavy-weight polypropylene mesh (PPM) for robotic sacrocolpopexy (RSC). METHODS: Following IRB approval, a 2-surgeon POP database of women who underwent RSC at a single institution was reviewed. …