SPE Library
The SPE Library contains thousands of papers, presentations, journal briefs and recorded webinars from the best minds in the Plastics Industry. Spanning almost two decades, this collection of published research and development work in polymer science and plastics technology is a wealth of knowledge and information for anyone involved in plastics.
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Technical Article Briefs
Polymer blends with improved mechanical properties
Hydrolytic degradation and elongation properties of polylactic acid can be enhanced by blending with polyhydroxybutyrate.
Off- and in-line analysis of phase morphology and evolution
The formation and evolution of phase structures of polymer blends during molten mixing and different heat-treatment processes is adequately described by fractal behavior.
Interpenetrating polymer network of blocked polyurethane and phenolic resin
Simultaneous polymerization enables synthesis of interpenetrating polymer networks.
Free-volume and mechanical properties of polymer composites
The average free-volume size, determined by positron-annihilation lifetime spectroscopy, is anticorrelated with the mechanical properties of polymer composites containing particulate fillers.
Forming hexagonal isopropylene crystals in a compatible blend
High crystallization temperatures and a slow cooling rate are optimal conditions for ß-type content in polypropylene/polyamide-6 blends.
Nascent morphology of polyolefin particles from gas-phase polymerization
Gas-phase polymerization of olefins at early times favors development of abrupt particle breakup, resulting in particle cracking even at very low polymer yields.
Improved mechanical and tribological properties of Boehmite-filled polymers
Surface modification of ceramic oxide filler reduces polymer melt viscosity and friction while enhancing tensile modulus.
Influence of molecular weight on the properties of poly(ether ether ketone)
Variations in molecular weight of poly(ether ether ketone) significantly alter its processing behavior, product properties, and performance.
Mechanical characterization of carbon-fiber/epoxy composites modified using novolac resin
Samples containing 13% by weight of the resin exhibit significantly enhanced mechanical properties compared to those without.
Composition of ethylene/ propylene co-polymer using IR
Gel-permeation chromatography linked to an IR detector can be used to reliably determine co-polymer compositions as an alternative to carbon nuclear-magnetic resonance.
The influence of atmospheric pollutants on plasticized poly(vinyl chloride)
Exposure of plasticized polymers to natural ageing exhibits hardness and tensile-strength degradation, particularly in the presence of both nitrogen dioxide and ozone.
Nacre-like organic-inorganic composites with remarkably improved mechanical properties
Laminated organic-inorganic composites represent a valuable bioroute to designing materials with excellent mechanical properties.
Effects of pressure and gases on viscosity of molten plastics
A high-pressure sliding-plate rheometer provides an attractive alternative to conventional instruments for measuring the impact of pressure and dissolved gases on polymer behavior.
Processing-property relationships in epoxy-resin/ titania nanocomposites
In situ precipitated titanium dioxide nanoparticles improve the physical properties of polymer composites.
Recycled polyvinyl chloride as a sustainable solution
An improved extrusion technique for polyvinyl chloride regrind could be useful to manufacturers, builders, and architects.
What to know when purchasing an extrusion screw
Finding the right extrusion screw is critical in avoiding molding faults and, accordingly, it merits careful preparation.
Rheological structure of silver nitrate micro-emulsions
Bicontinuous aqueous micro-emulsions exhibiting Newtonian behavior and low viscosity are suitable for silver-nanoparticle synthesis.
Visualizing expansion behavior of butane-blown foam
A CCD camera can be used to study the extrusion-die exit of n-butane-blown polymethyl methacrylate foams.
Supercritical carbon dioxide dissolves in potato starch and its derivatives
The solubility of supercritical carbon dioxide in potato starch is in the characteristic range of typical synthetic polymers.
Production of highly transparent polypropylene sheets
A combination of quick quenching and suitable heat treatment can improve the transparency of polypropylene extrusion sheets.
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