Mtundu wa Antifoamers I

Ma antifoamers amagwiritsidwa ntchito kuchepetsa kuthamanga kwa madzi, yankho ndi kuyimitsidwa, kuteteza kupangika kwa thovu, kapena kuchepetsa thovu lomwe limapangidwa panthawi yopanga mafakitale.Common Antifoamers ndi awa:

I. Mafuta Achilengedwe (ie Mafuta a Soya, Mafuta a Chimanga, ndi zina zotero)
Ubwino: zilipo, zotsika mtengo komanso zosavuta kugwiritsa ntchito.
Kuipa: ndikosavuta kuwonongeka ndikuwonjezera kuchuluka kwa asidi ngati sikusungidwa bwino.

II.Mowa Wapamwamba wa Carbon
Mowa wambiri wa kaboni ndi molekyulu yofananira yokhala ndi hydrophobicity yamphamvu komanso hydrophilicity yofooka, yomwe ndi antifoamer yogwira bwino m'madzi.Mphamvu ya antifoaming ya mowa imakhudzana ndi kusungunuka kwake komanso kufalikira kwa thovu.Mowa wa C7 ~ C9 ndiye Antifoamers othandiza kwambiri.Mpweya wa carbon Mowa wa C12 ~ C22 umakonzedwa ndi emulsifiers yoyenera ndi kukula kwa tinthu 4 ~ 9μm, ndi 20 ~ 50% emulsion yamadzi, ndiko kuti, defoamer m'madzi.Ma esters ena amakhalanso ndi antifoaming effect mu kuwira kwa penicillin, monga phenylethanol oleate ndi lauryl phenylacetate.

III.Ma Antifoam a Polyether
1. GP Antifoamers
Amapangidwa ndi kuwonjezera polymerization wa propylene okusayidi, kapena osakaniza ethylene okusayidi ndi propylene okusayidi, ndi glycerol monga woyambitsa.Ili ndi hydrophilicity yotsika komanso kusungunuka kochepa mu sing'anga yotulutsa thobvu, kotero ndiyoyenera kugwiritsidwa ntchito mumadzimadzi owonda kwambiri.Popeza luso lake loletsa kutulutsa thobvu ndilapamwamba kuposa la kufota, ndiloyenera kuonjezedwa mu basal sing'anga kuletsa kuchita thovu panjira yonse yowotchera.

2. GPE Antifoamers
Ethylene okusayidi anawonjezera pa mapeto a polypropylene glycol unyolo ulalo wa GP Antifoamers kupanga polyoxyethylene oxypropylene glycerol ndi hydrophilic mapeto.GPE Antifoamer ili ndi hydrophilicity yabwino, mphamvu yoletsa kutulutsa thovu, komanso imakhala ndi kusungunuka kwakukulu komwe kumayambitsa nthawi yaying'ono yokonza za antifoaming.Choncho, zimakhala ndi zotsatira zabwino mu viscous nayonso mphamvu msuzi.

3. GPEs Antifoamers
Chophimba chotchinga chokhala ndi unyolo wa hydrophobic kumapeto onse ndi unyolo wa hydrophilic chimapangidwa ndikusindikiza kumapeto kwa unyolo wa GPE Antifoamers ndi hydrophobic stearate.Mamolekyu omwe ali ndi kapangidwe kameneka kamakonda kusonkhana pamalo amadzi a gasi, motero amakhala ndi zochitika zamphamvu zapamtunda komanso kuchita bwino kwambiri pochotsa thovu.