Effects of Electron Beam Irradiation of Biaxially Oriented Polyethylene Shrink Films, 2001 Polymers Laminations & Coatings Conference Proceedings

Jim Huang, Peter Sipos, Larry Kale, and Jim Auger--Effects of electron beam (EB) irradiation were investigated on biaxially oriented polyethylene shrink films between 0 and 6 MRad. Direct evidence of crosslinking as examined by gel permeation chromatography is manifest. While toughness attributes generally improve with increasing EB exposure, the enhancement in puncture resistance is realized at a lower dosage level than the enhancement in tear resistance. Tensile properties or optical characteristics change little with respect to irradiation. At low dosage level, EB was found to increase the shrink tension in the machine direction and decrease in the transverse direction. Irradiation was effective in extending the operating range of shrink wrap packaging; however, optimization in polyethylene resin design can yield similar improvements without the process of irradiation crosslinking.

Author: Huang, J., Sipos, P., Kale, L., Auger, J.
Effects of Electron Beam Irradiation of Biaxially Oriented P
Effects of Electron Beam Irradiation of Biaxially Oriented Polyethylene Shrink Films, 2001 Polymers Laminations & Coatings Conference Proceedings
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