磷酸酯抗燃油不同形态氯检测方法及其对油性能影响

Discrimination of different forms of chlorides in phosphate ester fire-resistant fluids and their influences on fluid performance

研究了磷酸酯抗燃油样品中不同形态氯(可水解氯及不可水解氯)的测试方法及其对抗燃油水解安定性、电化学腐蚀性能等方面的影响。结果表明:采用水萃取-离子色谱法检测可水解氯的平均加标回收率为98.37%,相对标准偏差为1.09%,方法重复性、准确度较好,可用于测量抗燃油的可水解氯含量;可水解氯在抗燃油中的溶解度很小,低于5mg/kg;抗燃油样品的总氯含量主要由不可水解氯组成,其对抗燃油的性质影响较小,在抗燃油水解安定性、体积电阻率等指标合格的前提条件下,单纯的不可水解氯的增加不影响抗燃油的正常使用。

The determination methods of hydrolysable chlorides（HCs） and un-hydrolysable chlorides（UHCs） in phosphate ester fire-resistant fluids were presented.Moreover,the influence of HC and UHC on fluid performance were analyzed.The results indicate that the method of water extraction-ionic chromatogram（WE-IC） can be used for HCs determination,of which the average recovery was 98.37％ and the relative standard deviation（RSD） was 1.09％.The solubility of hydrolysable chlorides in fire-resistant fluid was lower than 5 mg/kg,contributing little to the total chlorine content.The UHCs had little influences on fluid performance.As long as the performance indexes,such as hydrolytic stability and direct current resistivity are under control,the phosphate ester fire-resistant fluid can still be in serves,in spite of a high content of UHCs.