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2017
Journal Article
Titel
Mechanical and thermo-mechanical properties of discontinuously and continuously processed biogenic wood-plastic composites from polyamide 11 and chemically modified beech particles
Abstract
The resulting mechanical and thermo-mechanical properties of discontinuously and continuously processed biogenic wood-plastic composites (bio-WPC) from polyamide 11 and chemically modified beech particles are investigated. It is found that continuous processing with a twin-screw extruder (TSE) and subsequent industrial scale injection molding leads to a lower elastic modulus, an equal tensile strength, a higher strain at break and a lower glass transition temperature as compared to discontinuous processing with an internal mixer (IM) and subsequent laboratory scale injection molding. This is attributed to a more distinctive beech particle size reduction and shear stress induced chain scission during TSE processing and subsequent injection molding.