Solid state extrusion of semicrystalline polymers
Source abstract
Abstract
Abstract The dynamics of solid state extrusion of polypropylene, high density polyethylene, and poly(tetrafluorethylene) have been investigated at various extrusion temperatures and piston velocities. A model of solid state extrusion of semicrystalline polymers is proposed. The formulae are obtained relating the value of the extrusion pressure with the parameters of the process and polymer properties. It has been found that for certain values of the parameters, defects of two main types emerge. A mechanism of defect formation is suggested.
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Research context
OpenAlex topics: Polymer crystallization and properties · biodegradable polymer synthesis and properties · Polymer Foaming and Composites
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References (18)
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