I. Amafutha Emvelo (okungukuthi Amafutha Kabhontshisi Wesoya, Amafutha ommbila, njll.)
II.I-Carbon Alcohol Ephezulu
III.Ama-Antifoam we-Polyether
IV.I-Poliether Modified Silicone
...Isahluko esedlule ukuze uthole imininingwane.
V. Organic Silicon Antifoamer
I-Polydimethylsiloxane, eyaziwa nangokuthi uwoyela we-silicone, iyisakhi esiyinhloko se-silicone defoamer.Uma kuqhathaniswa namanzi namafutha avamile, ukungezwani kwawo okungaphezulu kuncane, okulungele kokubili uhlelo lokugwebulwa kwamanzi olusekelwe emanzini kanye nesistimu ye-foaming esekelwe uwoyela.Uwoyela we-Silicone unomsebenzi ophezulu, ukuncibilika okuphansi, izakhiwo zamakhemikhali ezizinzile, ububanzi bokukhanya okukhanyayo, ukuguquguquka okuphansi, okungewona ubuthi, nekhono elivelele lokuqeda amagwebu.Ububi ukusebenza kabi kokuvimbela igwebu.
1. I-Antifoamer Eqinile
I-Solid Antifoamer inezici zokuzinza okuhle, inqubo elula, ukuthutha okulula nokusetshenziswa kalula.Ifanele kokubili isigaba samafutha kanye nesigaba samanzi, futhi uhlobo lokuhlakazeka okuphakathi nalo luvelele.Isetshenziswa kabanzi emkhakheni we-foam ephansi noma i-powder yokugeza igwebu.
2. I-Emulsion Antifoamer
Uwoyela we-silicone ku-emulsion defoamer unokudonsa kanzima, futhi i-emulsification coefficient inkulu kakhulu.Uma i-emulsifier isikhethwe ngendlela engafanele, izobangela ukuthi i-ejenti yokukhipha amagwebu ifakwe izendlalelo futhi i-metamorphic ngesikhathi esifushane.Ukuzinza kwe-emulsion kubaluleke kakhulu kwikhwalithi ye-agent defoaming.Ngakho-ke, ukulungiswa kwe-emulsion yohlobo lwe-silicone defoamer kugxile ekukhethweni kwe-emulsifier.Ngesikhathi esifanayo, i-emulsion defoamer inesilinganiso esikhulu kunazo zonke ku-silicone defoamer enezici zentengo ephansi, ububanzi bokufaka isicelo, umphumela ocacile wokuqeda amagwebu, njalonjalo.Ngokuqhubeka kobuchwepheshe bokubunjwa, i-emulsion defoamer izothuthuka kakhulu.
3. Isixazululo se-Antifoamer
Kuyisixazululo esenziwe ngokuncibilikisa uwoyela we-silicone ku-solvent.Umgomo wayo wokuqeda amagwebu ukuthi izingxenye zikawoyela we-silicone zithwalwa yi-solvent futhi zihlakazwe kusisombululo esinamagwebu.Kule nqubo, uwoyela we-silicone uzojiya kancane kancane ube amaconsi ukuze uqedele ukukhipha amagwebu.Amafutha e-Silicone ancibilikisiwe ohlelweni lwesisombululo se-organic non-aqueous, njenge-polychloroethane, i-toluene, njll., angasetshenziswa njengesixazululo samafutha sokuqeda amagwebu.
4. I-Antifoamer Yamafutha
Ingxenye eyinhloko ye-oil defoamer i-dimethyl silicone oil.Amafutha ahlanzekile e-silicone e-dimethyl ayinawo umphumela wokuqeda amagwebu futhi adinga ukufakwa emulsified.Ukungezwani okungaphezulu kwe-silicone emulsified kuncipha ngokushesha, futhi inani elincane lingafinyelela ukuphuka kwegwebu eliqinile kanye nokuvinjwa.Lapho uwoyela we-silicone uxutshwa nengxenye ethile yabasizi be-silica abaphathwa nge-hydrophobically, i-defoamer ehlanganisiwe kawoyela ingakhiwa.I-Silicon dioxide isetshenziswa njenge-filler, ngoba inani elikhulu lamaqembu e-hydroxyl ebusweni bayo lingathuthukisa amandla okuhlakaza amafutha abicah ohlelweni lwe-foaming, lwandise ukuzinza kwe-emulsion, futhi ngokusobala luthuthukise impahla ye-defoamer ye-silicone defoamer.
Ngenxa yokuthi uwoyela we-silicone une-lipophilic, i-silicone defoamer inomphumela omuhle kakhulu wokuqeda ugwebu esixazululweni esincibilika uwoyela.Kodwa-ke, la maphuzu kufanele anakwe lapho usebenzisa i-silicone defoamer:
● I-viscosity ephansi ye-silicone defoamer inomphumela omuhle wokukhipha amagwebu, kodwa ukuphikelela kwayo akulungile;I-silicone defoamer ene-viscosity ephezulu inomphumela wokukhipha amagwebu kancane kodwa iyaphikelela.
● Uma i-viscosity yesisombululo esinamagwebu iphansi, kungcono ukhethe i-silicone defoamer ene-viscosity ephezulu.Ngokuphambene nalokho, ukuphakama kwe-viscosity yesisombululo esinamagwebu, kungcono ukhethe i-silicone defoamer ene-viscosity ephansi.
● Isisindo samangqamuzana e-silicone defoamer enamafutha sinethonya elithile emthelela walo wokuqeda ugwebu.
● I-defoamer enesisindo esiphansi samangqamuzana kulula ukuyihlakaza futhi incibilike, kodwa ukuntuleka kokuphikelela.Ngokuphambene nalokho, ukusebenza kokwehlisa ugwebu kwe-high molecular weight defoamer kubi, futhi i-emulsification inzima, kodwa ukuncibilika kubi futhi ukuqina kuhle.
Isikhathi sokuthumela: Nov-19-2021