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Usawoti we-Quaternary Ammonium weSibulala-magciwane

Ama-quaternary ammonium usawoti (i-QAS) ayizinhlanganisela ze-cationic eziqukethe amaqembu e-alkyl ngobude bamaketanga we-C8-C18, ancibilikiswa ngamanzi futhi angasetshenziswa njengezibulala-magciwane ezimbonini zendwangu.

I-QAS yizinhlanganisela ze-ionic ezine-quaternary ammonium nitrogen, amaqembu amane e-alkyl noma ama-aryl axhunywe kule nitrogen, kanye ne-anionic ion efana ne-chloride noma i-bromide. Phakathi kwamaqembu amane e-alkyl, elilodwa liyiqembu elide le-alkyl chain eliqukethe ama-hydrocarbon angaphezu kwesishiyagalombili futhi lisebenza njengeqembu le-hydrophobic. Amaqembu e-Hydrophobic ku-QAS ajwayele ukuthinta imisebenzi yawo elwa namagciwane (UTiller et al., 2001; UZhao noSun, 2007). Nge-hydrophobicity enamandla, imisebenzi enamandla kakhulu yokulwa namagciwane i-QAS inayo (iZhao neSun, 2008) (I-Fig. 16.1 neThebula 16.1). Amakhemikhali amaningi e-QAS anemisebenzi yokuthintana. I-QAS ingama-biocides asebenzayo lapho isetshenziswa kwizixazululo ezinamandla futhi njengezibulala-magciwane eziketshezi. Lapho i-QAS ixhunywe ngamakhemikhali ezindaweni zefayibha imisebenzi yayo ingavinjelwa kuye ngokuthi zixhunywe kanjani kanye nezakhiwo zokugcina ze-QAS ezindaweni. I-QAS efakwe ngokomzimba kumicu inganikeza imisebenzi elwa namagciwane ngokuyikhipha kancane kancane ezindaweni ze-fiber ngesikhathi sokusetshenziswa, okunganikeza imisebenzi ehlosiwe yezinto zokwakha.

 

Ukugxila ukudala ukuncipha kwama-bacteria ayi-6 ngesikhathi sokuxhumana

I-QAS

1 iminithi (E. coli(ppm)

5 amaminithiE. coli(ppm)

1 iminithi (Saureus(ppm)

5 amaminithiS. aureus(ppm)

I-ALPC

100

100

100

50

I-AALPC

100

100

100

50

IBADPB

50

50

50

10

I-NADPB

50

10

50

10

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Isikhathi Iposi: Apr-16-2021