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Corrosion Resistance of PEEK

Views: 21     Author: Site Editor     Publish Time: 2020-03-20      Origin: Site

  1. Peek can tolerate almost any chemical except fuming sulfuric acid. It can maintain good chemical stability even at high temperature. With strong chemical corrosion resistance, it is usually used to manufacture parts that work in harsh environment or need frequent disinfection treatment (such as chemical storage tanks, medical devices that need strong oxidant hydrogen peroxide disinfection).

  2. Although peek polymer has been widely considered as a material that can withstand extremely strong chemical corrosion, of course, the specific resistance of peek to a certain corrosive medium is also related to the crystallinity of PEEK parts, the residual internal stress and the temperature and concentration of the medium contacted by the parts. For details, please refer to the following table (because the file is relatively large, please download and check it)

  3. The chemical corrosion resistance of PEEK can be divided into the following three categories:

  A: No erosion, little or no absorption;

  B: Slight erosion, the applicability depends on the application;

  C: It is severely eroded and cannot be used in the case of these chemicals.


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