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首页> 外文会议>TMS(The Minerals, Metals amp; Materials Society) Annual Meeting; 20050213-17; San Francisco, CA(US) >PLASMA STERILISATION AND SURFACE MODIFICATION OF THERMOLABILE MATERIALS
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PLASMA STERILISATION AND SURFACE MODIFICATION OF THERMOLABILE MATERIALS

机译：高温灭菌材料的等离子体灭菌和表面改性

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摘要

At the Institute for Electrical Engineering and Plasma Technology (AEPT) investigations on plasma sterilization and surface modification of thermolabile materials are performed. Our first field is plasma treatment of medical implants made of titanium, UHMWPE (Ultra High Molecular Weight PolyEthylen) and degradable polylactide. In a total treatment time of two minutes the developed process reduces germs by six and pyrogens by more than four decades, respectively. A modified plasma discharge hardens the surface of UHMWPE. Gel content measurements indicate the improvement of abrasion resistance while the bulk material is unaffected. An increasing part of non-carbonated and non-acidic beverages have been bottled in PET (Polyethylentherephthalat). Sensitive products require aseptic filling. Plasma treatment prepares bottles without toxic residua. To improve the shelf-live of oxygen-sensitive soft drinks a diffusion barrier made of SiO_x-layer can be deposited on the inner side of the PET bottle. At the end of an optimization phase the combined sterilization and coating process should take ten seconds.
机译：在电气工程与等离子技术研究所（AEPT），进行了对等离子灭菌和不耐热材料的表面改性的研究。我们的第一个领域是对钛，UHMWPE（超高分子量聚乙稀）和可降解聚丙交酯制成的医疗植入物进行等离子体处理。在总共两分钟的处理时间内，已开发的过程分别将细菌减少了六倍，热原减少了四十多年。改良的等离子放电可硬化UHMWPE的表面。凝胶含量的测量表明，在不影响大块材料的情况下，耐磨性得到了改善。越来越多的非碳酸和非酸性饮料被装在PET（聚对苯二甲酸乙二醇酯）瓶中。敏感产品需要无菌灌装。等离子体处理可以制备出无毒残留的瓶子。为了提高对氧敏感的软饮料的货架期，可以在PET瓶的内侧沉积由SiO_x层制成的扩散屏障。在优化阶段结束时，组合的灭菌和涂覆过程应花费十秒钟。

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