DEVELOPMENT OF NOVEL ONE-STEP HYBRID PROCESSING
2010
The plastics processing industry typically must precompound using extrusion prior to part fabrication by injection molding (IM). The aim of this work is to implement a novel method that combines compounding and part fabrication into one processing step, thereby eliminating a costly, heat-intensive extra step. Poly (trimethylene terephthalate) (PTT) is blended with 10, 15, 20, and 30 % fiberglass (FG) by three methods, including standard IM, pre-compounding followed by standard IM, and a novel, one-step IM process using an innovative mixing screw design. The effect of processing method on the mechanical, impact, and thermal properties of a FGPTT composite is presented.
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