Thermal properties of blend of PP/RPET with PP-g-MAH as compatibilizer / Haikal M. ...[et al.]

Polyethylene terephthalate is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially convenience sized soft drinks, juices and water. PET is too valuable to only be used once and it need to be recycled. One of recycle technique is blending polymers to generate a composite with improved properties, such as enhancement in thermal stability. Thermoplastic polymer such as polypropylene (also known as PP) is one of the most versatile polymer. The blending between PP and RPET gives more benefits as RPET is rigid than PP at higher temperature while PP could crystallize RPET by heterogeneous nucleation. However with maleic anhydride-grafted polypropylene (PP g-MAH), as an addition compatibilizers that can diminish the Tg (glass transition) which the polymer can withstand at low temperature that is good than virgin PP. This experiment is to study between blending RPET and PP on thermal properties such as glass transition, crystallization and melting point. However, due to the several factors the result could not be achieved same as the previous studies. The glass transition temperature should be increase following the previous studies, however in this study, the glass transition have been decrease. The few factor that affect the result are the compounding ratio, moisture content and viscoelastic.