I-Defoaming yikhono lokugqoka ukuze kuqedwe igwebu elikhiqizwa ngesikhathi sokukhiqiza kanye nenqubo yokumboza.Ama-Defoamersziwuhlobo lwesithasiselo esisetshenziselwa ukunciphisa igwebu elikhiqizwa ngesikhathi sokukhiqiza kanye/noma ukusetshenziswa kwezingubo zokumboza. Ngakho yiziphi izici ezithinta ukukhishwa kwamagwebu kwezingubo?

1. Ukushuba kobuso
Ukungezwani okungaphezulu kwe-coating kunethonya elikhulu ku-defoamer. Ukungezwani okungaphezulu kwe-defoamer kufanele kube ngaphansi kunokwemboza, ngaphandle kwalokho ngeke kukwazi ukudambisa futhi kuvimbele i-foam. Ukungezwani kwendawo yokumboza kuyisici esiguquguqukayo, ngakho-ke lapho ukhetha i-defoamer, kokubili ukungezwani kwendawo okuhlala njalo kanye nokuhlukahluka kokuqina kwesistimu kufanele kucatshangelwe.

2. Ezinye izithasiselo
Ama-surfactants amaningi asetshenziswa embotsheni awahambisani kahle nama-defoamers. Ikakhulukazi, ama-emulsifiers, ama-ejenti wokumanzisa kanye nezihlakazayo, ama-leveling agents, ama-thickeners, njll. azothinta umphumela wama-defoamers. Ngakho-ke, lapho sihlanganisa izithasiselo ezihlukahlukene, kufanele sinake ubuhlobo phakathi kwezithasiselo ezahlukene futhi sikhethe iphuzu elihle lokulinganisa.

3. Ukwelapha izici
Lapho upende ungena ekubhakeni okusezingeni eliphezulu lokushisa ekamelweni, i-viscosity izokwehla ngokushesha futhi ama-bubbles angahamba phezulu. Kodwa-ke, ngenxa yokuguquguquka kwe-solvent, ukuphulukiswa kopende, nokwanda kwe-viscosity ebusweni, igwebu kupende lizozinza kakhulu, ngaleyo ndlela livaleleke phezulu, okuholela ekuncipheni kwezimbobo namaphinikhodi. Ngakho-ke, izinga lokushisa lokubhaka, isivinini sokuphulukisa, izinga lokuguquguquka kwe-solvent, njll. nakho kuthinta umphumela we-defoaming.

4. Okuqukethwe okuqinile, i-viscosity, nokunwebeka kwezingubo
Izingubo eziwugqinsi eziqinile, izimbotshana ezine-viscosity ephezulu, nezingubo ezinwebekayo zonke zinzima kakhulu ukuqeda amagwebu. Kunezici eziningi ezingahambisani nokukhipha amagwebu, njengobunzima bokusabalalisa ama-defoam kulezi zinto zokumboza, izinga eliphansi lamabhamuza amancane aphenduka ama-macrobubbles, amandla ancishisiwe amagwebu afudukele phezulu, kanye ne-viscoelasticity ephezulu yamagwebu. Igwebu kulezi zembatho linzima kakhulu ukuliqeda, futhi kuyadingeka ukukhetha ama-defoamers nama-deaerators ukuze asetshenziswe ngokuhlanganiswa.

5. Indlela yokugqoka kanye nezinga lokushisa lokwakha
Kunezindlela eziningi zokufaka isicelo sokumboza, okuhlanganisa ukuxubha, ukumboza nge-roller, ukuthulula, ukuklwebula, ukufutha, ukuphrinta isikrini, njll. Izinga le-foaming le-coatings usebenzisa izindlela ezihlukene zokuhlanganisa nalo lihlukile. Ukuxubha nama-roller kukhiqiza igwebu eliningi kunokufafaza nokukhuhla. Ngaphezu kwalokho, indawo yokwakha enokushisa okuphezulu ikhiqiza i-foam eyengeziwe kunaleyo enezinga lokushisa eliphansi, kodwa i-foam nayo ilula ukuyiqeda ekushiseni okuphezulu.

 


Isikhathi sokuthumela: May-09-2025