Ama-Quaternary ammonium salts (QAS) ayinhlanganisela ye-cationic equkethe amaqembu e-alkyl ochungechungeni lobude be-C8–C18, ancibilika emanzini futhi angasetshenziswa njengezibulala-magciwane ezimbonini zendwangu.
I-QAS izinhlanganisela ze-ionic ezine-quaternary ammonium nitrogen, amaqembu amane e-alkyl noma e-aryl axhunywe kule nitrogen, kanye ne-anionic ion njenge-chloride noma i-bromide. Phakathi kwamaqembu amane e-alkyl, elilodwa yiqembu elide le-alkyl chain eliqukethe ama-hydrocarbon angaphezu kwayisishiyagalombili futhi lisebenza njengeqembu le-hydrophobic. Amaqembu e-Hydrophobic ku-QAS avame ukuba nomthelela ekusebenzeni kwawo kwe-antimicrobial (Tiller et al., 2001; Zhao kanye ne-Sun, 2007). Nge-hydrophobicity enamandla, imisebenzi enamandla kakhulu ye-antimicrobial i-QAS enayo (Zhao ne-Sun, 2008) (Fig. 16.1 kanye neThebula 16.1). Amakhompiyutha amaningi e-QAS anemisebenzi ye-surfactant. Ama-QAS ama-biocides asebenzayo uma esetshenziswa ezixazululweni ezinamanzi nanjengezibulala magciwane eziwuketshezi. Uma i-QAS ixhunywe ngamakhemikhali endaweni yefayibha imisebenzi yayo ingavinjelwa kuye ngokuthi ixhumeke kanjani kanye nezakhiwo zokugcina ze-QAS endaweni. I-QAS ehlanganiswe ngokomzimba kumafayibha inganikeza imisebenzi ye-antimicrobial ngokuyikhulula kancane kancane endaweni yefiber ngesikhathi sokusetshenziswa, enganikeza imisebenzi ehlosiwe yezinto zokwakha.
Ukugxilisa ingqondo ukuze kubangele ukuncishiswa kwama-bacteria angu-6 ngesikhathi sokuxhumana
| Isiphithiphithi | 1 iminithi (E. coli) (ppm) | 5 amaminithi (E. coli) (ppm) | 1 iminithi (S.aureus) (ppm) | 5 amaminithi (S. aureus) (ppm) |
| I-ALPC | 100 | 100 | 100 | 50 |
| I-AALPC | 100 | 100 | 100 | 50 |
| I-BADPB | 50 | 50 | 50 | 10 |
| NADPB | 50 | 10 | 50 | 10 |
Isikhathi sokuthumela: Apr-16-2021