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The research and development of the S3P technology.has grown significantly since 1990 from the development of a new plastics recycling process to a much broader polymer processing method that allows intimate mixing of polymers with very different viscosities, sold-state dispersion of additives, including pigments, and continuous production of powder with unique shapes and larger surface areas. By contrast, S3P maintains polymers in the solid state and avoids the additional heat history that occurs during, which can be detrimental to the physical properties of pulverized materials. pulverizing mixtures of polymers with the S3P process.does not involve melting. Unlike where polymers are melted prior to pulverization.

This technology, which utilizes a pulverizer based on a modified co-rotating twin-screw extruder., has profound implications for both the creation of new polymer blends and recycling of plastic and rubber waste. Called Solid-State Shear Pulverization (S3P), this innovative process produces polymeric powders with unique physical properties not found in the output of conventional size-reduction methods. From the Preface This book is the first extended look at a new and multifaceted polymer processing technology that has already been discussed in numerous articles.

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