TITLE

Dose and Dose-rate Dependence of Polyethylene Irradiation with Electron Beams "in Air."

AUTHOR(S)
Torrisi, L.; Visco, A. M.; Campo, N.
PUB. DATE
February 2007
SOURCE
Journal of Materials Engineering & Performance;Feb2007, Vol. 16 Issue 1, p97
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The chemical and physical properties of ultra-high-molecular-weight-polyethylene (UHMWPE) can be modified by high absorption dose of ionizing radiations. Energetic electron beams, 5 MeV in energy, with a penetration depth higher than 1 cm, can be used to deposit electron energy in thick UHMWPE. Different doses and different dose-rates have been employed at room temperature to irradiate the polyethylene samples in air. Mechanical measurements of tensile strength, wear resistance and hardness were performed on the pristine and electron-irradiated polymers. Results suggested the better irradiation conditions in order to optimize the mechanical properties of the polymer. Special medical applications of the electron-irradiated UHMWPE are presented and discussed.
ACCESSION #
24739425

 

Related Articles

  • Thermal, tensile and rheological properties of high density polyethylene (HDPE) processed and irradiated by gamma-ray in different atmospheres. Ferreto, H. F. R.; Oliveira, A. C. F.; Gaia, R.; Parra, D. F.; Lug√£o, A. B. // AIP Conference Proceedings;2014, Vol. 1593, p236 

    The aim of this paper is to investigate structural changes of high density polyethylene (HDPE) modified by ionizing radiation (gamma rays) in different atmospheres. The gamma radiation process for modification of commercial polymers is a widely applied technique to promote new physical-chemical...

  • ASIAN POLYMERS ENJOY UPWARD PRICE TRENDS. Gibson, Jane // ICIS Chemical Business;2/6/2006, Vol. 1 Issue 5, p42 

    The article reports on price trends covering polymers in Asia as of February 6, 2006. Asian polyethylene rose in January primarily due to high crude oil prices, tight ethylene supply and firm prices. Traders in southern China were sold out of imported high-density polyethylene blow molding...

  • Nanohardness of Electron Beam Irradiated HDPE. Manas, David; Ovsik, Martin; Manas, Miroslav; Stanek, Michal; Kocman, Karel; Bednarik, Martin; Senkerik, Vojtech // Advanced Materials Research;2014, Vol. 1025-1026, p410 

    Micromechanical changes in the surface layer of High-density polyethylene HDPE modified by beta radiation were measured by instrumented test of nanohardness. The specimens were prepared by injection technology and subjected to radiation doses of 0, 132, 165, 198 kGy. Measurements of nanohardness...

  • Market firms on stronger demand. Todd, Martin // European Chemical News;8/4/2003, Vol. 79 Issue 2064, p13 

    Presents updates on European commodity polymer prices as of August 4, 2003. Effort of producers to match production to actual demand; Price erosions of high-density polyethylene; Stability of polypropylene prices.

  • Low op rates, tight PP. Viswanathan, Prema // Asian Chemical News;1/13/2003, Vol. 9 Issue 385, p26 

    Presents an update on the prices of polymers as of January 2003. Reason for the tight supply of polypropylene; General-purpose polystyrene prices for January delivery; Reason for the improvement in buying interest on high-density polyethylene from Indonesia, Vietnam and the Philippines.

  • Reversals amid changing sentiment. Gibson, Jane // European Chemical News;3/7/2005, Vol. 82 Issue 2137, p15 

    Reports on the status of polymer market in Europe as of March 2005. Factors that contributed to the decrease in prices of high density polyethylene in February 2005; Reason behind the decision of European producers to lower the prices of low density polyethylene; Decrease in prices of polyvinyl...

  • Price slump begins to bottom out? Todd, Martin // European Chemical News;7/07/2003, Vol. 79 Issue 2060, p14 

    Details the market prices of European commodity polymer in June 2003. High density polyethylene; Linear low density polyethylene; Polystyrene.

  • COMMENT.  // ICIS Chemical Business;6/25/2007, Vol. 2 Issue 72, p15 

    The author cites Braskem's leadership in the green polyethylene (PE) project. The author notes that the company's green polymer, a high density polyethylene (HDPE), is the result of a $5 million research project. He believes that the monomer to polymer move of Braskem is essentially the same as...

  • Russian HDPE production, Jan-Oct 2012.  // CIREC Monthly News;Dec2012, Issue 264, p12 

    The article reports on the increase in the production of high density polyethylene (HDPE) in Russia from January-October 2012.

Share

Read the Article

Other Topics