Next Article in Journal
Ferroelectrics under the Synchrotron Light: A Review
Previous Article in Journal
Preparation and Characterization of Microencapsulated Phase Change Materials for Use in Building Applications
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle

Radiation-Induced Grafting with One-Step Process of Waste Polyurethane onto High-Density Polyethylene

Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 580-185, Korea
Author to whom correspondence should be addressed.
Academic Editor: Der-Jang Liaw
Materials 2016, 9(1), 13;
Received: 4 September 2015 / Revised: 1 December 2015 / Accepted: 22 December 2015 / Published: 29 December 2015
PDF [2177 KB, uploaded 29 December 2015]


The recycling of waste polyurethane (PU) using radiation-induced grafting was investigated. The grafting of waste PU onto a high-density polyethylene (HDPE) matrix was carried out using a radiation technique with maleic anhydride (MAH). HDPE pellets and PU powders were immersed in a MAH-acetone solution. Finally, the prepared mixtures were irradiated with an electron beam accelerator. The grafted composites were characterized by Fourier transformed infrared spectroscopy (FT-IR), surface morphology, and mechanical properties. To make a good composite, the improvement in compatibility between HDPE and PU is an important factor. Radiation-induced grafting increased interfacial adhesion between the PU domain and the HDPE matrix. When the absorbed dose was 75 kGy, the surface morphology of the irradiated PU/HDPE composite was nearly a smooth and single phase, and the elongation at break increased by approximately three times compared with that of non-irradiated PU/HDPE composite. View Full-Text
Keywords: waste; polyurethane; radiation grafting; recycling; polyethylene waste; polyurethane; radiation grafting; recycling; polyethylene

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Park, J.-S.; Lim, Y.-M.; Nho, Y.-C. Radiation-Induced Grafting with One-Step Process of Waste Polyurethane onto High-Density Polyethylene. Materials 2016, 9, 13.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top