Publicado em "ANTEC 2013 - Proceedings of the 71st Annual Technical Conference & Exhibition"Innovation, design freedom, cost and weight
reduction are some factors for the replacement of metals
by plastics. Plastics continue to offer attractive solutions
for design engineers. The metallic effect obtained by
incorporation of metal particles in polymers by injection
molding has the advantage of eliminating post-processing
techniques such as painting or metallization. Moreover, it
reduces production costs and time to get a superior part
quality. Nevertheless, undesired defects in the final
appearance of parts are common, such as flow lines and
weld lines. These defects occur due to inhomogeneous
orientation and anisotropy of the metal particles. Very few
studies are reporting the influence of metallic particles on
the morphology development of PP parts. Therefore, this
study is focused on the production of parts made of
PP/metallic pigments (aluminum, bronze and copper) by
injection molding in order to understand the influence of
metallic particles on the aesthetic and morphological
properties of the parts.ADI -American Dysautonomia Institut