Determination of the Influence of Irradiation on Physical and Structural Properties of UHMWPE |
| M. Nabrdalik, M. Sobociński
Czestochowa University of Technology, 42-201 Czestochowa, Poland |
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| The degradation process of UHMWPE polyethylene in in vitro conditions under the influence of X-rays was assessed. For the tests, the samples were submitted to the radiation dosages of 90, 120, and 150 cGy. The use of copper screening and the use of so-called water phantom made it possible to create samples of irradiation conditions similar to those occurring in the human body at a depth of 4 cm in soft tissues. The differential scanning calorimetry method was used for test on the degree of crystallinity in UHMWPE samples. The test also included friction-wear tests aimed at defining the influence of irradiation dosage on the wear of UHMWPE. The tests were conducted on the T-05 simulator. For the tested models, no significant changes were detected. |
DOI:10.12693/APhysPolA.142.104 topics: UHMWPE, irradiation, wear, degree of crystallinity |