Preparation of High Density Polyethylene-Waste Polyurethane Blends Compatibilized with Polyethylene-Graft-Maleic Anhydride by RadiationReport as inadecuate




Preparation of High Density Polyethylene-Waste Polyurethane Blends Compatibilized with Polyethylene-Graft-Maleic Anhydride by Radiation - Download this document for free, or read online. Document in PDF available to download.

Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 580-185, Korea





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Academic Editors: Navneet Soin and Tahir Shah

Abstract Polyurethane PU is a very popular polymer that is used in a variety of applications due to its good mechanical, thermal, and chemical properties. However, PU recycling has received significant attention due to environmental issues. In this study, we developed a recycling method for waste PU that utilizes the radiation grafting technique. Grafting of waste PU was carried out using a radiation technique with polyethylene-graft-maleic anhydride PE-g-MA. The PE-g-MA-grafted PU-high density polyethylene HDPE composite was prepared by melt-blending at various concentrations 0–10 phr of PE-g-MA-grafted PU. The composites were characterized using fourier transform infrared spectroscopy FT-IR, and their surface morphology and thermal-mechanical properties are reported. For 1 phr PU, the PU could be easily introduced to the HDPE during the melt processing in the blender after the radiation-induced grafting of PU with PE-g-MA. PE-g-MA was easily reacted with PU according to the increasing radiation dose and was located at the interface between the PU and the HDPE during the melt processing in the blender, which improved the interfacial interactions and the mechanical properties of the resultant composites. However, the elongation at break for a PU content >2 phr was drastically decreased. View Full-Text

Keywords: waste; polyurethane; radiation grafting; recycling; polyethylene waste; polyurethane; radiation grafting; recycling; polyethylene





Author: Jong-Seok Park * , Youn-Mook Lim and Young-Chang Nho

Source: http://mdpi.com/



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