Modification of microstructures and physical properties of ultra high molecular weight polyethylene by electron beam irradiation

2005 ◽  
Vol 43 (21) ◽  
pp. 3019-3029 ◽  
Author(s):  
Sang Man Lee ◽  
Sun Woong Choi ◽  
Young Chang Nho ◽  
Hyun Hoon Song
Keyword(s):  
Molecular Weight ◽  
Electron Beam ◽  
Physical Properties ◽  
High Molecular Weight ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Ultra High Molecular Weight

Effects of electron beam irradiation on structure and properties of ultra-high molecular weight polyethylene fiber

2017 ◽  
Vol 47 (6) ◽  
pp. 1357-1377 ◽  
Author(s):  
Dongliang Dai ◽  
Meiwu Shi
Keyword(s):  
Molecular Weight ◽  
Electron Beam ◽  
High Molecular Weight ◽  
Electron Beam Irradiation ◽  
Breaking Strength ◽  
Beam Irradiation ◽  
Elongation At Break ◽  
Gel Content ◽  
Ultra High Molecular Weight ◽  
Polyethylene Fibers

This study introduced trimethylolpropane trimethacrylate into ultra-high molecular weight polyethylene fibers through supercritical CO2 pretreatment before the fibers were irradiated under an electron beam. Significant differences, emerging in the ultra-high molecular weight polyethylene fibers’ gel content, mechanical properties, and creep property according to their different irradiation doses, were studied through one-way analysis of variance. Regression equations were established between the irradiation dose and the gel content, breaking strength, elongation at break, and creep rate by regression analysis. A reasonable irradiation dosage range was determined after a verification experiment and the impact trends were analyzed; additionally, the sensitized irradiation crosslinking mechanism of ultra-high molecular weight polyethylene fibers was preliminarily examined. Then the surface morphology, chemical structures, thermal properties, and crystal properties of treated ultra-high molecular weight polyethylene fibers were measured. The results showed that as the irradiation dose increased, the gel content first rose and then declined; the breaking strength decreased continuously; the elongation at break increased at first and then decreased; and the creep rate originally fell and then rose before finally declining slowly. Electron beam irradiation had a significant etching effect on the fibers’ surface, and both the melting point and crystallinity decreased slightly.

Dielectric behavior induced by vitamin E and electron beam irradiation in ultra high molecular weight polyethylene

2014 ◽  
Vol 131 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jose Antonio Puértolas ◽  
Maria Jose Martínez-Morlanes ◽  
Roberto Teruel ◽  
Alfonso Martinez-Felipe ◽  
Ebru Oral ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Electron Beam ◽  
Vitamin E ◽  
High Molecular Weight ◽  
Electron Beam Irradiation ◽  
Dielectric Behavior ◽  
Beam Irradiation ◽  
Ultra High Molecular Weight
Sign in / Sign up

Export Citation Format

Share Document