問(wèn)：Apiezon真空潤(rùn)滑脂是否抗輻射？

答：Apiezon L 和 M真空潤(rùn)滑脂表現(xiàn)出一定程度的耐輻射性，在用 4 MeV 電子照射至約 1 MGy 水平后，剛度僅相對(duì)較小地增加。在此暴露之后，潤(rùn)滑脂的潤(rùn)滑性能仍然令人滿意，并且在更高水平的輻照下也是如此，盡管剛度增加得更快。

在高水平的照射下，會(huì)產(chǎn)生少量氣體（主要是甲烷和乙烯），從而使?jié)櫥テ錁O低蒸氣壓的特性。盡管如此，與其他高真空潤(rùn)滑劑（例如硅樹(shù)脂、酯類和鹵化產(chǎn)品）相比，Apiezon 潤(rùn)滑脂 L 和 M 在高輻照水平下是明顯更好的潤(rùn)滑劑。

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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