<abstract xmlns="http://www.w3.org/1999/xhtml">The process of cross-linking of polyethylene using gamma radiation (γ) and electron beam (EB) was tested from the point of view of density of foam. Particular attention was paid to the postradiation oxidation effect of the polymers. The study used two types of radiation sources of varying dose rates: gamma radiation (4 kGy/h) and EB (14 000 kGy/h). Radiolysis studies of the polymers used the radiation yield of hydrogen evolved (<italic>G</italic>H2, approximately proportional to the number of radicals) and radiation yield of oxygen absorbed by the polymer (<italic>G</italic>O2). Oxidation of polymer due to radiation was also evaluated using diffuse reflectance spectroscopy.</abstract>

The process of cross-linking of polyethylene using gamma radiation (γ) and electron beam (EB) was tested from the point of view of density of foam. Particular attention was paid to the postradiation oxidation effect of the polymers. The study used two types of radiation sources of varying dose rates: gamma radiation (4 kGy/h) and EB (14 000 kGy/h). Radiolysis studies of the polymers used the radiation yield of hydrogen evolved (GH2, approximately proportional to the number of radicals) and radiation yield of oxygen absorbed by the polymer (GO2). Oxidation of polymer due to radiation was also evaluated using diffuse reflectance spectroscopy.

Effect of polyethylene cross-linking on properties of foams

Institute of Nuclear Chemistry and Technology

Institute for Engineering of Polymer Materials and Dyes

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Effect of polyethylene cross-linking on properties of foams"}

The process of cross-linking of polyethylene using gamma radiation (γ) and electron beam (EB) was tested from the point of view of density of foam. Particular...

Effect of polyethylene cross-linking on properties of foams

Published Online: Nov 02, 2018

Page range: 81 - 85

Received: Nov 13, 2017

Accepted: Apr 20, 2018

DOI: https://doi.org/10.2478/nuka-2018-0010

Keywords
polyethylene foam, radiation cross-linking, postradiation oxidation

© 2018 Wojciech Głuszewski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Effect of polyethylene cross-linking on properties of foams

Published Online: Nov 02, 2018

Page range: 81 - 85

Received: Nov 13, 2017

Accepted: Apr 20, 2018

DOI: https://doi.org/10.2478/nuka-2018-0010

Keywordspolyethylene foam, radiation cross-linking, postradiation oxidation

© 2018 Wojciech Głuszewski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
polyethylene foam, radiation cross-linking, postradiation oxidation