Ha o kgetha di-surfactants bakeng sa diforomo tsa hao tsa ho hlwekisa kapa ditshebediso tsa ho sebetsana le tsona, foam ke tšobotsi ya bohlokwa. Mohlala, ditshebedisong tsa ho hlwekisa tse thata tse entsweng ka letsoho—jwalo ka dihlahiswa tsa tlhokomelo ya dikoloi kapa ho hlatswa dijana ka letsoho—maemo a foam a phahameng hangata ke tšobotsi e lakatsehang. Lebaka ke hobane boteng ba foam e tsitsitseng haholo bo bontsha hore surfactant e kentswe tshebetsong mme e etsa mosebetsi wa yona wa ho hlwekisa. Ka lehlakoreng le leng, bakeng sa ditshebediso tse ngata tsa ho hlwekisa le ho sebetsana le tsona indastering, foam e ka sitisa diketso tse itseng tsa ho hlwekisa tsa mechini mme ya thibela tshebetso ka kakaretso. Maemong ana, di-formulator di hloka ho sebedisa di-surfactants tse nang le foam e tlase ho fana ka tshebetso e lakatsehang ya ho hlwekisa ha di ntse di laola mahloriso a foam. Sengolwa sena se ikemiseditse ho hlahisa di-surfactants tse nang le foam e tlase, ho fana ka sebaka sa ho qala bakeng sa kgetho ya surfactant ditshebedisong tsa ho hlwekisa tse nang le foam e tlase.
Litšebeliso tsa Foam e Tlase
Foam e hlahisoa ke ho fereha sebakeng sa moea le bokaholimo. Ka hona, liketso tsa ho hloekisa tse kenyeletsang ho fereha ho hoholo, ho kopanya ka ho shapa ho hoholo, kapa ho fafatsa ka mechine hangata li hloka li-surfactant tse nang le taolo e nepahetseng ea foam. Mehlala e kenyelletsa: ho hlatsoa likarolo, ho hloekisa CIP (hloekisa sebakeng), ho hloekisa fatše ka mechine, ho hlatsoa liaparo tsa indasteri le tsa khoebo, maro a sebetsang ka tšepe, ho hlatsoa lijana ka mochini o hlatsoang lijana, ho hloekisa lijo le lino, le tse ling.
Tlhahlobo ea Li-surfactants tse Foam e Tlase
Khetho ea li-surfactants—kapa metsoako ea li-surfactants—bakeng sa taolo ea foam e qala ka ho sekaseka litekanyo tsa foam. Litekanyo tsa foam li fanoa ke bahlahisi ba li-surfactant libukeng tsa bona tsa lihlahisoa tsa tekheniki. Bakeng sa tekanyo e tšepahalang ea foam, li-dataset li lokela ho ipapisa le litekanyetso tse amoheloang tsa teko ea foam.
Liteko tse peli tse tloaelehileng le tse tšepahalang tsa foam ke teko ea foam ea Ross-Miles le teko ea foam e nang le ho kuta ho hoholo.
•Teko ea Foam ea Ross-Miles ，e lekola tlhahiso ea pele ea foam (flash foam) le botsitso ba foam tlas'a ho sisinyeha ho tlase ka metsing. Teko e ka kenyelletsa lipalo tsa boemo ba pele ba foam, e lateloa ke boemo ba foam kamora metsotso e 2. E ka boela ea etsoa maemong a fapaneng a surfactant (mohlala, 0.1% le 1%) le maemo a pH. Bongata ba li-formulator tse batlang taolo ea foam e tlase li shebana le tekanyo ea pele ea foam.
•Teko ea ho Chesa ka Botebo bo Holimo (sheba ASTM D3519-88).
Teko ena e bapisa litekanyo tsa foam tlas'a maemo a litšila le a sa silafatsoang. Teko e nang le ho kuta ho hoholo e boetse e bapisa bophahamo ba pele ba foam le bophahamo ba foam kamora metsotso e 5.
Ho latela mekhoa efe kapa efe ea liteko tse boletsoeng ka holimo, li-surfactants tse 'maloa' marakeng li fihlela litekanyetso tsa metsoako e nang le foam e tlase. Leha ho le joalo, ho sa tsotelehe mokhoa oa teko ea foam o khethiloeng, li-surfactants tse nang le foam e tlase li tlameha ho ba le litšobotsi tse ling tsa bohlokoa tsa 'mele le ts'ebetso. Ho latela tikoloho ea ts'ebeliso le ea ho hloekisa, litšobotsi tse ling tsa bohlokoa bakeng sa khetho ea surfactant li ka kenyelletsa:
•Ts'ebetso ea ho hloekisa
•Litšobotsi tsa tikoloho, bophelo bo botle le polokeho (EHS)
•Matla a ho lokolla mobu
•Mefuta e fapaneng ea mocheso (ke hore, li-surfactants tse ling tse nang le foam e tlase li sebetsa feela maemong a phahameng haholo a mocheso)
•Ho bonolo ho e etsa le ho lumellana le metsoako e meng
•Ho tsitsa ha peroxide
Bakeng sa di-formulator, ho leka-lekanya thepa ena le tekanyo e hlokahalang ya taolo ya foam ts'ebelisong ke habohlokoa. Ho fihlella tekano ena, hangata ho hlokahala ho kopanya di-surfactants tse fapaneng ho sebetsana le ditlhoko tsa foam le tshebetso—kapa ho kgetha di-surfactants tse tlase ho isa ho tse mahareng tse nang le tshebetso e pharaletseng.
Nako ea poso: Loetse-11-2025