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Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking. The problem was formerly very common, especially in tires, but is now rarely seen in those products owing to preventive measures. However, it does occur in many other safety-critical items such as fuel lines and rubber seals, such as gaskets and O-rings, where ozone attack is considered unlikely. Only a trace amount of the gas is needed to initiate cracking, and so these items can also succumb to the problem.

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  • Ozonrissbildung (de)
  • Ozone cracking (en)
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  • Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking. The problem was formerly very common, especially in tires, but is now rarely seen in those products owing to preventive measures. However, it does occur in many other safety-critical items such as fuel lines and rubber seals, such as gaskets and O-rings, where ozone attack is considered unlikely. Only a trace amount of the gas is needed to initiate cracking, and so these items can also succumb to the problem. (en)
  • Als Ozonrissbildung wird die Bildung charakteristischer Risse in verschiedenen Elastomeren und Kautschuken bezeichnet, die durch Ozon entstehen. Früher war das Problem vor allem bei Reifen sehr verbreitet, tritt aber dort heute aufgrund von Präventionsmaßnahmen kaum noch auf. Hingegen ist die Rissbildung in vielen anderen, auch sicherheitskritischen, Bereichen wie Kraftstoffleitungen und Gummidichtungen, problematisch. Zur Einleitung der Ozonrissbildung reicht schon eine relativ geringe Konzentration des Gases aus. Ozon in der Luft greift Doppelbindungen im Gummi an, wobei Naturkautschuk, Polybutadien, Styrol-Butadien-Kautschuk und Nitrilkautschuk am empfindlichsten auf die Zersetzung reagieren. (de)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Crack2.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Spec1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/General_reaction_equation_of_ozonolysis.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ozone_cracks_in_tube1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Weather-cracked_Tire.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ozonecr2.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/GORP_rubber_band.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ozonecr1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ozonecr3.jpg
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