Apiezon真空润滑脂是否抗辐射？

问：Apiezon真空润滑脂是否抗辐射？

答：Apiezon L 和 M真空润滑脂表现出一定程度的耐辐射性，在用 4 MeV 电子照射至约 1 MGy 水平后，刚度仅相对较小地增加。在此暴露之后，润滑脂的润滑性能仍然令人满意，并且在更高水平的辐照下也是如此，尽管刚度增加得更快。

在高水平的照射下，会产生少量气体（主要是甲烷和乙烯），从而使润滑脂失去其极低蒸气压的特性。尽管如此，与其他高真空润滑剂（例如硅树脂、酯类和卤化产品）相比，Apiezon 润滑脂 L 和 M 在高辐照水平下是明显更好的润滑剂。

Q: Are Apiezon greases resistant to radiation?

A: Apiezon L and M greases show a degree of radiation resistance with only a comparatively small increase in stiffness after irradiation with 4 MeV electrons to a level of about 1 MGy. After this exposure the lubrication properties of the grease are still satisfactory and this is true at even higher levels of irradiation, although the stiffness increases more rapidly.

At high levels of irradiation small quantities of gases, (mainly methane and ethylene) are evolved so that the grease loses its very low vapour pressure characteristics. Nevertheless Apiezon greases L and M are markedly better lubricants at high irradiation levels than other high vacuum lubricants such as silicones, esters and halogenated products.

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