A New Approach to Recycling PET Bottles by Blending Polyethylene- Terephthalate and HDPE Using Chemical Reactions in One Step Process

The overall goal of this study is to propose a new approach simplify the recycling process for producing high quality material from waste beverage bottles and other sources at lower cost by using mechanical chemical reactions inside injection molding machines in one-step process. water soft drink are made PET material, while caps mainly HDPE. blends HDPE incompatible. resulted has poor properties due immiscibility polymer blend components, phase separation, lack interfacial adhesion. (HDPE-g-MA) was found be an excellent reactive compatibilizer PET/HDPE blend. For purpose investigating morphological study, rPET virgin weight compositions 80/20, 60/40 were modified with concentrations 2 5 wt percent (HDPE-g-MA). addition 4,4-Methylenebis (phenyl isocyanate) compatiblizer increased viscosity molecular also improving miscibility interaction bonds between molecules, resulting significant reduction tension improved dispersion adhesion via interpenetration entanglements interface. segments have been grafted onto backbone chains. Since crystallinity low, crystallization temperature reduced. characteristics achieving uniform morphology. main finding that immiscible rPET/HDPE materials can treated processed single step sufficient because it shows improvement characteristics, two-step process, namely extrusion followed molding, improves fewer more expensive.