Kunezinhlobo eziningiAma-Defoamersfuthi zisetshenziswa kabanzi. Inqubo "yokucindezelwa kwegwebu" kanye "nokwephuka kwe-foam" ye-defoamer yilezi: lapho i-defoamer yengezwa ohlelweni, ama-molecule ayo asakazwa ngokungahleliwe ebusweni boketshezi, avimbele ukwakheka kwefilimu enwebekayo, okungukuthi, ukuqeda isizukulwane segwebu. Lapho uhlelo lukhiqiza igwebu elikhulu, engeza i-defoamer, ama-molecule alo ngokushesha asakazeka ebusweni begwebu, asakazeka ngokushesha, akhe ungqimba lwefilimu oluncane kakhulu oluphindwe kabili, aqhubeke asakazeke, angenele, futhi ahlasele ngezingqimba, ngaleyo ndlela athathe indawo yodonga oluncane lwefilimu yokuqala yegwebu. Ngenxa yokuqina kwayo okuphansi kwendawo, igelezela oketshezini olunomfutho ophakeme okhiqiza igwebu, ukuze ama-molecule e-defoamer anengcindezi ephansi engaphezulu aqhubeke nokusabalala futhi angene phakathi kwe-interface ye-gas-liquid, okwenza udonga lwefilimu lube mncane ngokushesha, futhi igwebu liphinde lithinteke indawo ezungezile. Isendlalelo sefilimu esinokucindezeleka okuphezulu sidonsa ngamandla, ukuze ukucindezeleka okuzungeze i-foam kungalingani, okuholela "ekuqhekekeni kwe-foam". Ama-molecule e-defoamer angancibiliki ohlelweni azophinde abuyele ebusweni befilimu ye-foam, njalonjalo, yonke i-foam izobhujiswa ngokuphelele.
Indlela yokukhetha okulungileI-Antifoam
Ukukhiqizwa nokwakhiwa kwezingubo zokugqoka kuzokhiqiza amabhamuza ngamazinga ahlukahlukene. Ukukhiqizwa kwama-bubbles kuvimbela inqubekela phambili ebushelelezi yokukhiqiza nokwakhiwa, futhi ngesikhathi esifanayo kuletha amaphutha efilimu yokugqoka eqediwe. Ukukhethwa okulungile kwe-defoamer efanelekile kungaqinisekisa inqubekelaphambili evamile yokukhiqiza ukugqoka nokwakhiwa.
Umsebenzi we-defoamer: bhubhisa ifilimu ye-liquid ebusweni be-bubble, uvimbele ukwakheka kwe-bubble futhi ukhuthaze ukuwa kwe-bubble. I-defoamer isetshenziselwa amabhamuza amakhulu, futhi i-microfoam idinga ukusetshenziswa kanye nokukhipha umoya nokukhipha amagwebu.
Izici ze-Defoamer: I-defoamer ayincibiliki phakathi nendawo, kodwa ingangena futhi ihlakazeke phakathi ngendlela yama-microdroplets. Ububanzi obusebenza kahle kakhulu be-defoamer microdroplets bulingana nobukhulu bodonga lwegwebu.
Ukwakhiwa kwe-Defoamer:Ama-Defoamersngoba i-architectural coatings esekelwe emanzini ihlukaniswe ngezinhlobo ezingezona i-silicon ne-silicon-containing. OkuvamileAma-Defoamerszakhiwe yizingxenye ezilandelayo:
Into esebenzayo: Isebenza njenge-ejenti egqekeza igwebu futhi ikhiphe amagwebu enokuqina okuphansi kwendawo. Abameleli bahlanganisa amafutha ezilwane nemifino, i-silica ye-hydrophobic, utshwala obuphezulu, njll.
I-ejenti yokusabalalisa: I-emulsifier yokumanzisa ukuze kuqinisekiswe ukuthi amaconsi amancane asusa ugwebu ayasabalala futhi athinte ifilimu yebhamuza futhi asakazeke. Kukhona i-non(octyl) phenol polyoxyethylene ether, insipho kasawoti nokunye.
Umthwali: Isiza into esebenzayo ukuthi ihlangane nesistimu yokukhipha amagwebu, futhi kulula ukuhlakazeka ohlelweni olukhipha amagwebu. Ukuhlanganisa lezi zinto ezimbili, inokuqina okuphansi kwendawo, isiza ukucindezela igwebu, futhi inganciphisa izindleko.
Kumelwe kuhlangatshezwane nemibandela emibili yokukhipha amagwebu: isici sokungena: E=γ1+γ12-γ3 > 0, ukuze kuqinisekiswe ukuthi i-defoamer ingena odongeni lwegwebu; i-spreading factor S=γ1-v12-γ3 >0, ukuze kuqinisekiswe ukuthi amaconsi e-defoamer Asakaza kumidiya yegwebu.
Uma ufuna ukwazi okwengeziweI-Antifoam, ngicela uthinteI-Yuncang: sales@yuncangchemical.com. leave your contact information
Isikhathi sokuthumela: Jan-09-2023