Abstract
In order to show the importance of plastic recycling, a study of the mechanical, thermal and thermodegradative properties of low-density polyethylene (LDPE) blends with virgin and recycled high-density polyethylene (HDPE) was made to assess the possibility of using recycled polymers, and consequently, reducing environmental pollution brought about by those materials. The formation of an additional phase was determined through thermal analysis of LDPE blends with virgin and recycled HDPE. In the study of mechanical behavior of these blends, this intermediate phase was observed to increase tensile strength and flexibility of samples, thus acting as an interfacial agent. Regarding activation energy obtained in thermogravimetric studies, it was concluded that a phenomenon occurs which delays decomposition process at 30% and 40% recycled HDPE. because at higher compositions, properties completely deteriorate. It is possible to use recycled HDPE in blends with LDPE. since raw materials cost is reduced and properties of the finished product are enhanced.
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