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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >The effect of the environment on the mechanical properties of medical grade silicones.
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The effect of the environment on the mechanical properties of medical grade silicones.

机译：环境对医用级有机硅机械性能的影响。

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摘要

Silicone spacers have been in use as replacement joints in the human hand for over 30 years. Since they were first used there has been a number of designs all of which have had problems with fracture. This may be due to a defect in the material caused during implantation, or by bony intrusions within the arthritic hand after implantation. The aim of this research was to investigate the effect of the environment on the mechanical properties of medical grade silicones used for human implantation. The materials were subjected to static tensile testing after various forms of ageing. The environmental conditions included temperatures of 37 and 80 degrees C and the environments of Ringer's solution, distilled water, and air. The environmental conditions employed resulted in reduced mechanical strength with ageing time of the silicones. This research supports the view that failure of silicone implants in the hand could be partly attributed to the effects of environmental ageing of the material.
机译：硅树脂垫片已被用作人类手中的替换关节已有30多年的历史了。自从首次使用它们以来，已有许多设计都存在断裂问题。这可能是由于在植入过程中造成的材料缺陷，或者是由于植入后关节炎手内的骨头侵入所致。这项研究的目的是研究环境对用于人体植入的医用级有机硅的机械性能的影响。在各种形式的老化之后，对材料进行静态拉伸测试。环境条件包括37和80摄氏度的温度以及林格氏溶液，蒸馏水和空气的环境。所使用的环境条件导致有机强度随着硅树脂的老化时间而降低。这项研究支持以下观点：手部有机硅植入物的故障可能部分归因于材料的环境老化的影响。

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