I-Defoaming yikhono lokugubungela ukuphelisa i-foam eyenziwa ngexesha lokuvelisa kunye nenkqubo yokugqoka.Defoamersluhlobo lwezongezo ezisetyenziselwa ukunciphisa i-foam eyenziwe ngexesha lokuvelisa kunye / okanye ukusetyenziswa kweengubo. Ke zeziphi izinto ezichaphazela ukukhutshwa kogwebu kweengubo?

1. Uxinzelelo lobuso
Uxinzelelo oluphezulu lwengubo lunempembelelo enkulu kwi-defoamer. Ukunyanzeliswa komphezulu we-defoamer kufuneka kube ngaphantsi kwengubo, ngaphandle koko ayiyi kukwazi ukucima kunye nokuvimbela i-foam. Ukunyanzeliswa komphezulu wengubo yinto eguquguqukayo, ngoko ke xa ukhetha i-defoamer, zombini ukunyanzeliswa komphezulu oqhubekayo kunye nokuhlukahluka komgangatho wenkqubo kufuneka kuthathelwe ingqalelo.

2. Ezinye izongezo
Uninzi lwee-surfactants ezisetyenzisiweyo kwiingubo azihambelani ngokusebenzayo kunye ne-defoamers. Ngokukodwa, i-emulsifiers, i-wetting kunye ne-dispersing agents, i-agent yokulinganisa, i-thickeners, njl.njl iya kuchaphazela umphumo we-defoamers. Ke ngoko, xa udibanisa izongezo ezahlukeneyo, kufuneka sinikele ingqalelo kubudlelwane phakathi kwezongezo ezahlukeneyo kwaye ukhethe indawo elungileyo yokulinganisa.

3. Imiba yokunyanga
Xa ipeyinti ingena kwiqondo lokushisa eliphezulu lokubhaka kwiqondo lokushisa, i-viscosity iya kuhla ngokukhawuleza kwaye iibhubhu ziyakwazi ukuhamba phezulu. Nangona kunjalo, ngenxa ye-volatilization ye-solvent, ukunyangwa kwepeyinti, kunye nokunyuka kwe-viscosity yomhlaba, i-foam kwipeyinti iya kuzinza ngakumbi, ngaloo ndlela ibanjwe phezu komhlaba, okubangela imingxuma yokuncipha kunye neepinhole. Ngoko ke, ubushushu bokubhaka, isantya sokunyanga, izinga lokunyuka kwe-solvent, njl njl.

4. Isiqulatho esiqinileyo, i-viscosity, kunye ne-elasticity ye-coatings
Iingubo ezityebileyo eziqinileyo, i-high-viscosity coatings, kunye ne-high-elasticity coatings zonke zinzima kakhulu ukukhupha amagwebu. Zininzi izinto ezingancediyo ekungcoliseni amagwebu, ezinje ngobunzima bee-defoams ukuba zisasazeke kolu gquba, isantya esicothayo samabhabhule amancinci ajike abe zii-macrobubbles, ukuncitshiswa kokukwazi kwamagwebu ukufudukela phezulu, kunye ne-viscoelasticity ephezulu yamagwebu. I-foam kule ngubo inzima kakhulu ukuyiphelisa, kwaye kuyimfuneko ukukhetha i-defoamers kunye ne-deaerators ukuze zisetyenziswe ngokudibeneyo.

5. Indlela yokwaleka kunye nobushushu bokwakha
Kukho iindlela ezininzi zokufaka isicelo sokugquma, kubandakanya ukuxubha, ukugquma, ukugalela, ukukhuhla, ukutshiza, ukuprintwa kwesikrini, njl njl. Ukuxubha kunye ne-roller coating kuvelisa amagwebu amaninzi kunokutshiza kunye nokukhuhla. Ukongezelela, indawo yokwakha enobushushu obuphezulu ivelisa i-foam ngaphezu kweqondo lokushisa eliphantsi, kodwa i-foam nayo ilula ukuyiphelisa kwiqondo lokushisa eliphezulu.

 


Ixesha lokuposa: May-09-2025