Moloko oa boraro oa defoamer ke silicone defoamer e thehiloeng ho polydimethylsiloxane (PDMS, oli ea dimethyl silicone). Hona joale, lipatlisiso le ts'ebeliso ea moloko ona oa defoamers li shebane haholo Chaena. PDMS e entsoe ka ketane ea oksijene ea silicon le lihlopha tse ling tsa lintho tse phelang, 'me e ke ke ea hlophisoa ka thata filiming ea mokelikeli oa foam, e le hore lipululana li phatlohe. Viscosity e tlase PDMS e na le thepa e ntle ea defoaming 'me viscosity e phahameng PDMS e na le thepa e ntle ea defoaming.
Melemo ea silicone defoamer
E na le inertia e ntle ea lik'hemik'hale 'me ho thata ho e sebetsana le lintho tse ling. E ka sebelisoa litharollong tsa asiti, alkali le letsoai.
E na le bofokoli bo botle ba 'mele, e ka sebelisoa indastering ea lijo le ea meriana, 'me ha e na tšilafalo tikolohong.
E na le botsitso bo botle ba mocheso le ho feto-fetoha ho tlase, 'me e ka sebelisoa maemong a fapaneng a mocheso.
Viscosity e tlase mme e ata ka potlako sebakeng sa khase-metsi.
Kgatelelo ya bokahodimo e ka tlase ho 1.5-20 Mn / M (76 Mn / m bakeng sa metsi).
Ha ho bonolo ho qhibiliha ka surfactant tsamaisong ea foam.
Tekanyo e tlase, viscosity e tlase le ho cha ho tlase.
Mathata a silicone defoamer
1. Ho thata ho hasana tsamaisong ea metsi.
2. Kaha e qhibiliha ka har'a oli, phello ea ho tlosa mafome tsamaisong ea oli ea fokotseha.
3. Ho hanyetsa mocheso o phahameng hampe.
4. Ho hanyetsa ha alkalinity e matla.
Theko e phahameng:PDMS ke emulsion ea oli (O/W) e entsoeng ka mafura a silicone, emulsifier, thickener, jj., e emulsifier ke metsi. Khatello ea bokaholimo e fokotseha ka potlako 'me e na le litlamorao tse matla tsa ho thibela ho foamela le ho thibela ho foamela. E arotsoe ka mefuta e meraro: oli ea silicone, oli ea silicone + polyether e fetotsoeng le oli ea silicone e fetotsoeng ea polyether.
E khetholloa ka:Kgatelelo e tlase ya bokaholimo, mosebetsi o phahameng wa bokaholimo le matla a matla a ho tlosa lefoa.
Tekanyo e tlase:E ka thibela le ho roba lipululana bakeng sa boholo ba mecha ea phatlalatso ea lipululana.E na le botsitso bo botle ba mocheso 'me e ka sebelisoa maemong a fapaneng a mocheso.E arolelanoa le polyether 'me e na le phello ea tšebelisano-'moho.E sebelisoa haholo bakeng sa ho tlosa mafome ho sesepa, ho etsa pampiri, pulp, ho etsa tsoekere, ho plating ka motlakase, manyolo a lik'hemik'hale, lintho tse ling tse sebelisoang, kalafo ea metsi a litšila le lits'ebetso tse ling tsa tlhahiso. Indastering ea peterole, e sebelisoa haholo bakeng sa ho tlosa sebabole sa khase ea tlhaho ho potlakisa karohano ea oli le khase; E boetse e sebelisoa ho laola kapa ho thibela lipululana lisebelisoa tse kang ho omisa ethylene glycol, ho ntša hydrocarbon e nkhang hamonate, ts'ebetso ea asphalt le ho tlotsa oli ka dewaxing. Indastering ea masela, e sebelisoa bakeng sa ho tlosa mafome ho daeng, ho sefa, ho etsa boholo le lits'ebetso tse ling; E sebelisoa ts'ebetsong ea emulsion ea lik'hemik'hale le ho tlosa mafome indastering; E sebelisoa bakeng sa ho tlosa mafome lits'ebetsong tse fapaneng tsa mahloriso, ho belisa le ho qhibilihisa indastering ea lijo.
Nako ea poso: Mots'eanong-05-2022