ʻO nā paʻakai ammonium Quaternary (QAS) nā pūhui cationic i loaʻa nā pūʻulu alkyl i ka lōʻihi o ke kaulahao o C8–C18, hiki ke hoʻohana ʻia e like me nā disinfectants i nā ʻoihana textile.
ʻO QAS nā pūhui ionic me ka naikokene ammonium quaternary, ʻehā pūʻulu alkyl a i ʻole aryl i pili i kēia nitrogen, a me kahi ion anionic e like me ka chloride a i ʻole bromide. Ma waena o ʻehā pūʻulu alkyl, ʻo kekahi he pūʻulu kaulahao alkyl lōʻihi i loaʻa ma mua o ʻewalu mau hydrocarbons a lawelawe pū kekahi me ka pūʻulu hydrophobic. Hiki i nā hui hydrophobic ma QAS ke hoʻopili i kā lākou hana antimicrobial (Tiller et al., 2001; Zhao a me Sun, 2007). Me ka hydrophobicity ikaika, ʻoi aku ka ikaika o nā hana antimicrobial i loaʻa i ka QAS (Zhao and Sun, 2008) (Fig. 16.1 a me ka Papa 16.1). Nui nā pūhui QAS i nā hana surfactant. He biocides maikaʻi ʻo QAS i ka wā e hoʻohana ʻia ai i loko o nā hoʻonā wai a me nā disinfectants wai. Ke hoʻopili kemika ʻo QAS i nā ʻili fiber hiki ke hoʻopaʻa ʻia kā lākou mau hana ma muli o ke ʻano o ka hoʻopili ʻana a me nā hana hope o QAS ma luna o nā ʻili. Hiki i ka QAS hoʻokomo kino i loko o nā fiber 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 noʻonoʻo e hoʻemi i ka 6-log o ka bacteria i ka manawa pili
| He haunaele | 1 min (E. coli) (ppm) | 5 min (E. coli) (ppm) | 1 min (S.aureus) (ppm) | 5 min (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 kau: Apr-16-2021