The invention pertains to a composition based on a fluoroelastomer comprising nitrile or carboxylate-type cure sites and including a curing agent and a Br-containing marker having reactivity towards the said cure-sites, which can be cured so as to deliver cured parts maintaining chemically bound bromine atoms; this material, when submitted to wear/damage would hence release Br-containing contaminants, which can easily spotted via notably an on-line mass spectrometer, so as to monitor and anticipate critical failures of sealing materials based there upon.
本发明涉及一种基于
氟弹性体的组合物,该
氟弹性体包括腈类或
羧酸类固化位点,还包括一种固化剂和一种对上述固化位点具有反应活性的含
溴标记物,这种组合物可以固化,从而提供保持
化学结合
溴原子的固化部件;这种材料在受到磨损/损坏时会释放出含
溴污染物,通过在线质谱仪可以很容易地发现这些污染物,从而监测和预测基于这种材料的密封材料的严重故障。