气相法白炭黑季铵盐衍生物的皮革防霉和抗细菌作用

Mildewproof and Antibacterial Activity of Quaternary Ammonium Derivative of Fumed Silica

以气相法白炭黑(FS)、偶联剂和叔胺为原料,合成了3种气相法白炭黑季铵盐衍生物(DQAFS),并用红外光谱对其结构进行了表征。防霉抗菌试验表明:用悬菌定量法,3种DQAFS对大肠杆菌(8099)和金黄色葡萄球菌(ATCC6538)的15min抑菌率都达到99.99%,而对采自蓝湿革的混合霉菌的抑制效果则有很大区别,定性试验结果表明,有的是完全抑制,有的几乎无作用。

Three kinds of fumed silica derivatives modified with quaternary ammonium salts （DQAFS） were synthesised with fumed silica （FS） , coupling agent and tertiary amine, and their structures were characterized by Fourier -transform infrared spectroscopy （FTIR）. The results indicate that for Escherichia coli （8099） and Staphylococcus （ATCC6538）, the inhibition rates of three kinds of DQAFS are all 99.99% exposed to the microorganism in 15 rain. But for the mixing fungus from wet - blue leather, their inhibiting abilities are of great differences. Some of them show highly effective, while others almost have no inhibiting effects.