ʻO nā paʻakai ammonium Quaternary (QAS) he mau hui cationic e loaʻa ana nā hui alkyl i loko o kahi kaulahao lōʻihi o C8–C18, hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke hoʻohana ʻia ma ke ʻano he mau mea hoʻomake disinfectant i nā ʻoihana lole.
ʻO QAS nā hui ionic me kahi nitrogen ammonium quaternary, ʻehā mau hui alkyl a aryl paha i pili i kēia nitrogen, a me kahi ion anionic e like me chloride a bromide paha. Ma waena o nā hui alkyl ʻehā, hoʻokahi kahi hui kaulahao alkyl lōʻihi e loaʻa ana ma mua o ʻewalu hydrocarbons a lawelawe pū kekahi ma ke ʻano he hui hydrophobic. ʻO nā hui hydrophobic ma QAS e hoʻopilikia pinepine i kā lākou mau hana antimicrobial (Tiller et al., 2001; Zhao lāua ʻo Sun, 2007). Me ka hydrophobicity ikaika, ʻoi aku ka ikaika o nā hana antimicrobial a ka QAS (Zhao lāua ʻo Sun, 2008) (Kiʻi 16.1 a me ka Papa 16.1). He nui nā hui QAS i loaʻa nā hana surfactant. He biocides maikaʻi nā QAS i ka wā e hoʻohana ʻia ai i nā hopena wai a ma ke ʻano he disinfectants wai. Ke hoʻopili ʻia nā QAS me ke kemika i nā ʻili fiber hiki ke hoʻopilikia ʻia kā lākou mau hana ma muli o ke ʻano o ko lākou hoʻopili ʻia ʻana a me nā ʻano hope loa o QAS ma nā ʻili. Hiki i ka QAS i hoʻokomo kino ʻia i loko o nā fibers ke hāʻawi i nā hana antimicrobial ma ka hoʻokuʻu mālie ʻana iā lākou mai nā ʻili o ka fiber i ka wā e hoʻohana ai, hiki ke hāʻawi i nā hana i manaʻo ʻia o nā mea.
ʻO ka hoʻohuihui ʻana e hoʻemi i ka bacteria ma 6-log i ka manawa hoʻopili
| QAS | 1 minuke (ʻE. coli) (ppm) | 5 minuke (ʻE. coli) (ppm) | 1 minuke (S.ʻulaʻula) (ppm) | 5 minuke (S. aureus) (ppm) |
| ALPC | 100 | 100 | 100 | 50 |
| AALPC | 100 | 100 | 100 | 50 |
| BADPB | 50 | 50 | 50 | 10 |
| NADPB | 50 | 10 | 50 | 10 |
Ka manawa hoʻouna: ʻApelila-16-2021