nkhani

Mchere wa Quaternary Ammonium wa Disinfectant

Mchere wa quaternary ammonium (QAS) ndi mankhwala a cationic omwe amakhala ndi magulu a alkyl munthawi yayitali ya C8-C18, yomwe imasungunuka m'madzi ndipo itha kugwiritsidwa ntchito ngati mankhwala ophera tizilombo m'mafakitale ovala nsalu.

QAS ndi ma ionic omwe ali ndi quaternary ammonium nitrogen, magulu anayi a alkyl kapena aryl olumikizidwa ndi nayitrogeni, ndi ion ya anionic monga chloride kapena bromide. Pakati pamagulu anayi a alkyl, limodzi ndi gulu lalitali la ma alkyl okhala ndi ma hydrocarboni opitilira eyiti ndipo amatumikiranso ngati gulu la hydrophobic. Magulu a Hydrophobic pa QAS amakonda kukhudza ntchito zawo za antimicrobial (Tiller et al., 2001; Zhao ndi Sun, 2007). Ndi hydrophobicity yamphamvu, mphamvu zowononga maantibayotiki zomwe QAS ili nazo (Zhao ndi Sun, 2008) (mkuyu. 16.1 ndi Table 16.1). Mitundu yambiri ya QAS imakhala ndimagwiridwe antchito. QAS ndi ma biocides ogwira ntchito akagwiritsidwa ntchito m'madzi amadzimadzi komanso ngati mankhwala ophera tizilombo. QAS ikalumikizidwa ndi mankhwala ndi fiber fiber ntchito zawo zimatha kulephereka kutengera momwe amalumikizidwira ndi zomaliza za QAS pamalo. Zomwe zimaphatikizidwa ndi QAS mu ulusi zimatha kupereka maantimicrobial ntchito mwa kuzimasula pang'onopang'ono kuchokera pachimake pazogwiritsa ntchito, zomwe zitha kupereka ntchito zomwe zidapangidwazo.

 

Kukhazikika komwe kumayambitsa kuchepa kwa mabakiteriya a 6 munthawi yolumikizana

QAS

Mphindi 1 (E. coli(ppm)

Mphindi 5 (E. coli(ppm)

Mphindi 1 (Saureus(ppm)

Mphindi 5 (S. aureus(ppm)

ALPC

100

100

100

50

AALPC

100

100

100

50

BADPB

50

50

50

10

NADPB

50

10

50

10

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Post nthawi: Apr-16-2021