Ukusula i-foam yikhono le-coating lokususa i-foam ekhiqizwa ngesikhathi senqubo yokukhiqiza kanye ne-coating.Ama-defoamerluhlobo lwezithasiselo ezisetshenziselwa ukunciphisa igwebu elikhiqizwa ngesikhathi sokukhiqizwa kanye/noma ukusetshenziswa kwezimbozo. Ngakho-ke yiziphi izici ezithinta ukuhlanzwa kwezimbozo?

1. Ukucindezeleka kobuso
Ukuqina kobuso bengubo kunethonya elikhulu kumshini wokuhlanza. Ukuqina kobuso bengubo kufanele kube ngaphansi kokwengubo, ngaphandle kwalokho ngeke kukwazi ukukhipha igwebu nokuvimbela igwebu. Ukuqina kobuso bengubo kuyisici esiguquguqukayo, ngakho-ke lapho ukhetha umshini wokuhlanza, kufanele kucatshangelwe kokubili ukuqina kobuso okungaguquki kanye nokuguquguquka kokuqina kobuso besistimu.

2. Ezinye izithasiselo
Ama-surfactant amaningi asetshenziswa ekumbozweni awahambisani nokusebenza nama-defoamers. Ikakhulukazi, ama-emulsifier, ama-wetting kanye nama-dispersing agents, ama-leveling agents, ama-thickeners, njll. azothinta umphumela wama-defoamers. Ngakho-ke, lapho sihlanganisa izithasiselo ezahlukahlukene, kumelwe sinake ubudlelwano phakathi kwezithasiselo ezahlukene futhi sikhethe iphuzu elihle lokulinganisela.

3. Izinto zokwelapha
Uma upende ungena ekubhakeni okushisa okuphezulu ekamelweni lokushisa, i-viscosity izokwehla ngokushesha futhi amabhamuza angahamba aye phezulu. Kodwa-ke, ngenxa yokuguquguquka kwe-solvent, ukuqina kopende, kanye nokwanda kwe-viscosity ebusweni, i-foam ependeni izozinza kakhulu, ngaleyo ndlela ibambeke ebusweni, okuholela ekuncipheni kwemigodi kanye nemigodi. Ngakho-ke, izinga lokushisa lokubhaka, isivinini sokupholisa, izinga lokuguquguquka kwe-solvent, njll. nakho kuthinta umphumela wokususa i-foam.

4. Okuqukethwe okuqinile, ukujiya, kanye nokuqina kwezimbozo
Izembozo eziqinile kakhulu, izembozo eziqinile, kanye nezembozo eziqinile konke kunzima kakhulu ukuzikhipha igwebu. Kunezici eziningi ezingavumeli ukususwa kwegwebu, njengobunzima bezembozo eziqinile ukusabalala kulezi zembozo, izinga eliphansi lamagwebu amancane aphenduka amagwebu amakhulu, ikhono eliphansi lamagwebu lokuthuthela phezulu, kanye ne-viscoelasticity ephezulu yamagwebu. Igwebu kulezi zembozo kunzima kakhulu ukulisusa, futhi kuyadingeka ukukhetha amagwebu kanye nama-deaerators okusetshenziswa ngokuhlanganiswa.

5. Indlela yokumboza kanye nokushisa kokwakhiwa
Kunezindlela eziningi zokufaka i-coating, okuhlanganisa ukuxubha, i-roller coating, ukuthulula, ukuklwebha, ukufutha, ukuphrinta isikrini, njll. Izinga lokufutha le-coating elisebenzisa izindlela ezahlukene zokufutha nalo lihlukile. I-brushing ne-roller coating ikhiqiza i-foam eningi kunokufutha nokuklwebha. Ngaphezu kwalokho, indawo yokwakha enokushisa okuphezulu ikhiqiza i-foam eningi kunaleyo enokushisa okuphansi, kodwa i-foam kulula kakhulu ukuyisusa lapho ishisa kakhulu.