【摘要】 合成了4种含氰基季铵盐,比较了它们的杀菌活性;探讨了12种含氰基季铵盐的结构与杀菌性能之间的关系;试验了污水含油量、pH 值、温度对杀菌效果的影响及杀菌剂的贮存稳定性。结果表明:含氰基季铵盐的杀菌活性与其分子结构密切相关,分子的结构对称性越高,其杀菌活性越低;在杀菌剂浓度一定的情况下,杀菌剂的杀菌活性随污水含油量的增加而下降;含氰基季铵盐具有良好的贮存稳定性,在偏碱性及温度较高的条件下具有较好的杀菌效果。更多还原

【Abstract】 Four kinds of cyanogroup-containing quaternary ammonium salts have been prepared.The relationship between the structure of twelve kinds of cyanogroup-containing quaternaryammonium salts and their bactericidal activity has been discussed.The factors influencing thebactericidal activity of these cyanogroup-containing quaternary ammonium salts,includingthe oil content in waste water,the pH value,the temperature and the storage period of watersolution of these cyanogroup-containing quaternary ammonium salts,are studied experimen-tally.The experimental results show that the bactericidal activity of these cyanogroup-con-taining quaternary ammonium salts has close relation with their molecular structure,themore symmetrical the structure of these cyanogroup-containing quaternary ammonium saltsis,the less their bactericidal activity is;With the increase of oil content in waste water,thebactericidal activity of these cyanogroup-containing quaternary ammonium salts decreases;The cyanogroup-containing quaternary ammonium salts have long storage life and give com-paratively good results in bactericidal activity in weakly basic solution and in solution withslighly high temperature.更多还原