Mchere wa Quaternary Ammonium wa Mankhwala Opha tizilombo

Quaternary ammonium salt (QAS) ndi mankhwala a cationic okhala ndi magulu a alkyl mu utali wa C8-C18, omwe amasungunuka m'madzi ndipo amatha kugwiritsidwa ntchito ngati mankhwala ophera tizilombo m'mafakitale a nsalu.

QAS ndi mankhwala a ionic okhala ndi quaternary ammonium nitrogen, magulu anayi a alkyl kapena aryl olumikizidwa ndi nayitrogeni iyi, ndi ayoni anionic monga chloride kapena bromide.Pakati pa magulu anayi a alkyl, limodzi ndi gulu lalitali la alkyl chain lomwe lili ndi ma hydrocarbon opitilira asanu ndi atatu ndipo limagwiranso ntchito ngati gulu la hydrophobic.Magulu a Hydrophobic pa QAS amakonda kukhudza ntchito zawo za antimicrobial (Tiller et al., 2001; Zhao ndi Sun, 2007).Ndi mphamvu ya hydrophobicity, ntchito zamphamvu kwambiri za antimicrobial zomwe QAS ili nazo (Zhao ndi Sun, 2008) (Mkuyu 16.1 ndi Table 16.1).Mankhwala ambiri a QAS ali ndi ntchito zowonjezera.QAS ndi ma biocides ogwira mtima akagwiritsidwa ntchito munjira zamadzimadzi komanso ngati mankhwala ophera tizilombo.Pamene QAS imalumikizidwa ndi ma fiber pamwamba ntchito zawo zimatha kusokonezedwa kutengera momwe zimalumikizidwira komanso mawonekedwe omaliza a QAS pamtunda.QAS yophatikizidwa ndi thupi mu ulusi imatha kupereka ntchito zolimbana ndi mabakiteriya powatulutsa pang'onopang'ono kuchokera pamalo omwe mumagwiritsa ntchito, zomwe zimatha kupereka ntchito zomwe zidapangidwazo.