MICROSTRUCTURE DEVELOPMENT DURING THE INJECTION MOULDING OF PET/LCP BLENDS

摘要

For several years, plastics processors have been blending two or more generally incompatible materials in order to improve physical or mechanical properties. Depending on the degree of compatibility and thermomechanical history during processing, various goals may be attained: easier processing, improved mechanical (modulus, impact strength), thermal and barrier properties. Polyethylene terephthalate (PET) enjoys wide success in industrial applications because of its outstanding mechanical, optical and barrier properties. However, the growing demands of the electronics and automotive sectors have surpassed the PET performance limits. With its outstanding barrier properties as well as mechanical properties even at high temperatures, LCP's are potential candidates as a blend component.