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Positron lifetimes and mechanical properties of gamma-irradiated ultra high molecular weight polyethylene

机译：γ辐照超高分子量聚乙烯的正电子寿命和力学性能

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Positron annihilation lifetime spectroscopy (PALS) has widely been used for probing open volume defects in various materials. PALS is in principle non-destructive, yet conventional PALS is not strictly non-destructive because cutting out of two specimens from the material is required. Recently we developed a novel method of PALS, which is potentially applicable to nondestructive, onsite material inspection. In order to explore the possibility of onsite monitoring of polymer degradation by this novel method of PALS, we studied variations of positron lifetime and mechanical properties of ultra high molecular weight polyethylene (UHMWPE) subjected to γ-irradiation. Correlations were found between the mechanical properties and ortho-positronium lifetimes, suggesting the feasibility of non-destructive, onsite monitoring of polymer degradation by PALS. The effect of γ-irradiation on positronium formation is discussed.

机译：正电子an没寿命谱（PALS）已广泛用于探测各种材料中的空体积缺陷。 PALS原则上是非破坏性的，但是常规PALS并非严格非破坏性的，因为需要从材料中切出两个样本。最近，我们开发了一种新颖的PALS方法，该方法可能适用于无损现场材料检查。为了探索通过这种新颖的PALS方法现场监测聚合物降解的可能性，我们研究了受到γ辐照的超高分子量聚乙烯（UHMWPE）的正电子寿命和力学性能的变化。在机械性能和正电子寿命之间发现了相关性，这表明通过PALS对聚合物降解进行无损现场监测的可行性。讨论了γ射线对正电子形成的影响。

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来源
《Positron and positronium chemistry X》|2011年|147-150|共4页
会议地点 Smolenice Castle(SK)
作者
Y. Kobayashi; M. Yamawaki; T. Oka; S. Saiki; Hamdy F. M. Mohamed; K. Hattori; Y. Watanabe;
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作者单位

National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan;

National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan;

Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan;

Japan Atomic Energy Agency, Takasaki, Gunma, 370-1292, Japan;

Physics Department, Faculty of Science, Minia University, P.O. box 61519, Minia, Egypt;

Toyo Seiko Co. Ltd., Yatomi, Aichi 490-1412, Japan;

Toyo Seiko Co. Ltd., Yatomi, Aichi 490-1412, Japan;

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正文语种 eng
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关键词
Positron annihilation lifetime spectroscopy; ultra high molecular weight polyethylene; irradiation; degradation; non-destructive onsite inspection;

机译：正电子an没寿命谱；超高分子量聚乙烯；辐照降解;无损现场检查;

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专利

1. Positron lifetimes and mechanical properties of gamma-irradiated ultra high molecular weight polyethylene [J] . Y. Kobayashi, M. Yamawaki, T. Oka, Materials science forum . 2013,第期

机译：γ辐照超高分子量聚乙烯的正电子寿命和力学性能
2. Surface modification of ultra-high-molecular-weight polyethylene. II. Effect on the physicomechanical and tribological properties of ultra-high-molecular-weight polyethylene/poly(ethylene terephthalate) composites [J] . Rezaei M, Shirzad A, Ebrahimi NG, Journal of Applied Polymer Science . 2006,第5期

机译：超高分子量聚乙烯的表面改性。二。对超高分子量聚乙烯/聚对苯二甲酸乙二酯复合材料的物理力学和摩擦学性能的影响
3. CORRELATION OF MECHANICAL AND CHEMICAL CHANGES IN GAMMA-IRRADIATED ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE [J] . Joao Carlos Miguez Suarez, Amal Elzubair, Claudia Maria, Journal of polymer engineering . 2005,第4期

机译：γ射线辐照的超高分子量聚乙烯的机械和化学变化的相关性
4. Positron lifetimes and mechanical properties of gamma-irradiated ultra high molecular weight polyethylene [C] . Y. Kobayashi, M. Yamawaki, T. Oka, International workshop on positron and positronium chemistry . 2013

机译：正电子寿命和γ辐射超高分子量聚乙烯的力学性能
5. An investigation of the microstructure, mechanical properties, and tribological performance of ultra high molecular weight polyethylene for applications in total joint arthroplasty. [D] . Van Citters, Douglas W. 2006

机译：对用于全关节置换术的超高分子量聚乙烯的微观结构，力学性能和摩擦学性能的研究。
6. Mechanical Rheological and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite [O] . Mazatusziha Ahmad, Mat Uzir Wahit, Mohammed Rafiq Abdul Kadir, 2012

机译：包含聚乙二醇和羟基磷灰石的超高分子量聚乙烯生物活性复合材料的机械流变和生物活性
7. Crystalline Orientation and Mechanical Properties with Biaxially Stretching of Ultrahigh Molecular Weight Polyethylene and Low Molecular Weight Polypropylene Blend Gel Film [O] . Yoshio OOMOTO, Takahiro NIWA, Shigehiro HASNIZUME, 1993

机译：超高分子量聚乙烯双轴拉伸和低分子量聚丙烯共混凝胶膜的结晶取向和力学性能
8. Relationship between Morphology and Mechanical Properties of Ultra High Molecular Weight Polyethylene [R] . Crissman, J. M. , Zapas, L. J. , Khoury, F. A. 1983

机译：超高分子量聚乙烯的形态与力学性能的关系

Positron lifetimes and mechanical properties of gamma-irradiated ultra high molecular weight polyethylene

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