10/29/2010
Effects of filler size and content on shrinkage and gloss of injection molded PBT/PET/talc composites
(pages 1020–1027)Polymer Composites 31 #6 (2010)
Kim, Lee and Youn of Seoul National University, South Korea “found that the planes of talc particles were aligned parallel to the mold wall due to applied shear stresses and the largest axes of the disk-like talc particles were oriented along the flow direction. Shrinkage of the PBT/PET/talc composites was decreased more rapidly along the flow direction than along the transverse direction as the talc content was increased. Small-sized talc was more effective for reduction of the surface shrinkage of PBT/PET composites than titanium dioxide (TiO2) or large-sized talc. Although the PBT/PET polymer matrix almost covered the surface of talc particles, surface gloss of the particle filled composites was decreased as the size of mineral filler was increased.” (RDC 12/16/2010)