Ha u khetha li-surfactants bakeng sa liforomo tsa hau tsa ho hloekisa kapa tsa ho sebetsa, foam ke tšobotsi ea bohlokoa. Ka mohlala, lits'ebetsong tsa matsoho tsa ho hloekisa sefahleho-tse kang lihlahisoa tsa tlhokomelo ea koloi kapa lijana tse hlatsuoang ka letsoho - maemo a phahameng a foam hangata ke tšobotsi e lakatsehang. Lebaka ke hore boteng ba foam bo tsitsitseng haholo bo bontša hore surfactant e butsoe 'me e etsa mosebetsi oa eona oa ho hloekisa. Ka lehlakoreng le leng, bakeng sa lits'ebetso tse ngata tsa ho hloekisa le ho sebetsana le liindasteri, foam e ka kena-kenana le liketso tse itseng tsa ho hloekisa mochini le ho thibela ts'ebetso ka kakaretso. Maemong ana, baetsi ba lihlahisoa ba hloka ho sebelisa li-surfactants tse nang le foam e tlase ho fana ka ts'ebetso e lakatsehang ea tlhoekiso ha ba ntse ba laola mahloriso a foam. Sengoliloeng sena se ikemiselitse ho hlahisa li-surfactants tse nang le foam e tlase, ho fana ka sebaka sa ho qala bakeng sa khetho ea li-surfactant lits'ebetsong tsa ho hloekisa foam e tlase.
Lisebelisoa tsa Low-Foam
Foam e hlahisoa ke ho ferekanngoa ha sebopeho sa moea o holim'a moea. Ka hona, liketso tsa ho hloekisa tse kenyelletsang ho ferekana ho hoholo, ho kopanya ho kuta haholo, kapa ho fafatsa ka mochini hangata ho hloka li-surfactants tse nang le taolo e nepahetseng ea foam. Mehlala e kenyelletsa: ho hlatsoa likarolo, ho hloekisa CIP (ho hloekisa sebakeng), ho hloekisoa fatše ka mechine, liaparo tsa indasteri le tsa khoebo, maro a tšepe, ho hlatsoa lijana, ho hloekisa lijo le lino, le tse ling.
Tlhahlobo ea li-Low-Foam Surfactants
Khetho ea li-surfactants - kapa metsoako ea li-surfactants - bakeng sa taolo ea foam e qala ka ho hlahloba litekanyo tsa foam. Litekanyo tsa foam li fanoa ke baetsi ba surfactant libukeng tsa bona tsa sehlahisoa sa tekheniki. Bakeng sa tekanyo e tšepahalang ea foam, li-dataset li lokela ho ipapisa le litekanyetso tse tsebahalang tsa tlhahlobo ea foam.
Liteko tse peli tse tloaelehileng le tse ka tšeptjoang tsa foam ke tlhahlobo ea foam ea Ross-Miles le teko ea foam e phahameng.
•Ross-Miles Foam Test , e lekola tlhahiso ea foam ea pele (flash foam) le botsitso ba foam tlas’a pherekano e tlase metsing. Teko e ka kenyelletsa ho baloa ha foam ea pele, e lateloe 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. Boholo ba liforomo tse batlang taolo ea foam e tlase li lebisa tlhokomelo ho tekanyo ea pele ea foam.
•High-Shear Test (bona ASTM D3519-88).
Teko ena e bapisa litekanyo tsa foam tlas'a maemo a litšila le a sa hloekang. Teko e phahameng ea ho kuta e boetse e bapisa bophahamo ba foam ea pele le bophahamo ba foam kamora metsotso e 5.
Ho ipapisitsoe le mekhoa efe kapa efe ea liteko tse kaholimo, li-surfactants tse 'maloa tse' marakeng li kopana le litekanyetso tsa lisebelisoa tse nang le maeba a tlase. Leha ho le joalo, ho sa tsotelehe mokhoa oa tlhahlobo ea foam o khethiloeng, li-surfactants tse nang le foam e tlase le tsona li tlameha ho ba le lisebelisoa tse ling tsa bohlokoa tsa 'mele le ts'ebetso. Ho ipapisitse le ts'ebeliso le tikoloho ea ho hloekisa, litšobotsi tse ling tsa bohlokoa bakeng sa khetho ea surfactant li ka kenyelletsa:
•Ho hloekisa tshebetso
• Litšobotsi tsa Tikoloho, bophelo bo botle le polokeho (EHS).
• Thepa ea ho lokolla mobu
•Mocheso o pharalletseng (ke hore, lisebelisoa tse ling tsa foam tse tlase li sebetsa feela maemong a mocheso o phahameng haholo)
• Ho bonolo ho etsa le ho lumellana le metsoako e meng
•Botsitso ba peroxide
Bakeng sa baetsi ba lihlahisoa, ho leka-lekanya thepa ena le tekanyo e hlokahalang ea taolo ea foam ts'ebetsong ho bohlokoa. Ho finyella tekanyo ena, hangata hoa hlokahala ho kopanya li-surfactants tse fapaneng ho sebetsana le litlhoko tsa foam le ts'ebetso-kapa ho khetha li-surfactants tse tlaase ho isa ho tse bohareng tse nang le ts'ebetso e pharaletseng.
Nako ea poso: Sep-11-2025