Analysis of variance of injection moulding process parameters and clay particles size effects on impact strength, shrinkage and warpage of polyethylene/kaolin clay composites

Abstract A correlation effect between particle size of kaolin clay and injection moulding process parameters on impact strength, shrinkage warpage high-density polyethylene/kaolin (HDPE/KC) composites was carried out using analysis variance (ANOVA). Kaolin with sizes < 75, 75–106 106–150 μm used. The that were taken into consideration temperature, packing pressure time. In general, experimental results showed the strength HDPE/KC clearly depended temperature. However, no clear dependency temperature observed. Furthermore, to have an influence only composites, where smaller led injected composite parts relatively less shrinkage. ANOVA containing 75 statistically significant ( p = 0.01 0.04, respectively). made having not 0.07). also indicated contain clays 0.03 0.01, respectively), whereas a 0.17). Contrary studied significant, which in good agreement observations.