Cov ntsev ammonium Quaternary (QAS) yog cov tshuaj cationic uas muaj cov pab pawg alkyl hauv cov saw ntev ntawm C8-C18, uas yaj tau hauv dej thiab siv tau ua cov tshuaj tua kab mob hauv kev lag luam textile.
QAS yog cov ionic compounds uas muaj quaternary ammonium nitrogen, plaub alkyl lossis aryl pawg txuas nrog cov nitrogen no, thiab ib qho anionic ion xws li chloride lossis bromide. Ntawm plaub pawg alkyl, ib qho yog ib pawg alkyl saw ntev uas muaj ntau tshaj yim hydrocarbons thiab kuj ua haujlwm ua pawg hydrophobic. Cov pawg hydrophobic ntawm QAS feem ntau cuam tshuam rau lawv cov haujlwm antimicrobial (Tiller et al., 2001; Zhao thiab Sun, 2007). Nrog hydrophobicity muaj zog dua, cov haujlwm antimicrobial muaj zog dua QAS muaj (Zhao thiab Sun, 2008) (Daim duab 16.1 thiab Rooj 16.1). Ntau cov tshuaj QAS muaj cov haujlwm surfactant. QAS yog cov biocides zoo thaum siv rau hauv cov kua dej thiab ua cov tshuaj tua kab mob kua. Thaum QAS txuas nrog cov fiber nto lawv cov haujlwm tuaj yeem raug cuam tshuam nyob ntawm seb lawv txuas li cas thiab cov qauv kawg ntawm QAS ntawm nto. Lub cev QAS uas koom ua ke hauv cov fibers tuaj yeem muab cov haujlwm antimicrobial los ntawm kev maj mam tso lawv tawm ntawm cov fiber nto thaum siv, uas tuaj yeem muab cov haujlwm xav tau ntawm cov ntaub ntawv.
Kev sib sau ua ke ua rau muaj kev txo qis ntawm cov kab mob 6-log hauv lub sijhawm sib cuag
| QAS | 1 feeb (E. coli) (ppm) | 5 feeb (E. coli) (ppm) | 1 feeb (S.aureus) (ppm) | 5 feeb (S. aureus) (ppm) |
| ALPC | 100 | 100 | 100 | 50 |
| AALPC | 100 | 100 | 100 | 50 |
| BADPB | 50 | 50 | 50 | 10 |
| NADPB | 50 | 10 | 50 | 10 |
Lub sijhawm tshaj tawm: Plaub Hlis-16-2021