Ho hlalosa matla a rheological a metsoako ea surfactant e se nang sulfate ea cocamidopropyl betaine-sodium methyl cocoyl taurate ho pholletsa le sebopeho, pH, le maemo a ionic

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Mekhoa ea li-surfactant tsa metsi tse nang le mefuta e fapaneng ea li-charge e sebelisoa haholo makaleng a mangata a indasteri, ho kenyeletsoa litlolo, meriana, lik'hemik'hale tsa temo le liindasteri tsa ts'ebetso ea lijo. Ho amoheloa ha mekhoa ena ka bongata ho bakoa haholo ke ts'ebetso ea bona e phahameng ea interfacial le rheological, e nolofalletsang ts'ebetso e ntlafetseng mefuteng e fapaneng. Kopano ea li-surfactant tse joalo ka bonngoe ho li-aggregates tse kang seboko, tse kopantsoeng e fana ka thepa e ka fetoloang haholo ea macroscopic, ho kenyeletsoa le ho eketseha ha viscoelasticity le ho fokotseha ha tsitsipano ea interfacial. Haholo-holo, metsoako ea li-surfactant tsa anionic le zwitterionic e bonts'a ntlafatso ea synergistic ts'ebetsong ea bokaholimo, viscosity, le modulation ea tsitsipano ea interfacial. Boitšoaro bona bo hlaha ho tsoa likamanong tse matla tsa electrostatic le steric pakeng tsa lihlopha tsa hlooho ea polar le mehatla ea hydrophobic ea li-surfactants, ho fapana le litsamaiso tsa single-surfactant, moo matla a electrostatic a nyonyehang a atisang ho fokotsa ntlafatso ea ts'ebetso.

Cocamidopropyl betaine (CAPB; SMILES: CCCCCCCCCCCC(=O)NCCN+ (C)CC([O−])=O) ke surfactant e sebediswang haholo ka amphoteric mefuteng ya botle ka lebaka la bokgoni ba yona bo bobebe ba ho hlwekisa le bokgoni ba ho lokisa moriri. Tlhaho ya zwitterionic ya CAPB e nolofalletsa ho sebedisana ha electrostatic le anionic surfactants, ho ntlafatsa botsitso ba foam le ho kgothaletsa tshebetso e phahameng ya ho etsa. Lilemong tse mashome a mahlano tse fetileng, metswako ya CAPB le di-surfactants tse thehilweng ho sulfate, tse kang CAPB–sodium lauryl ether sulfate (SLES), e se e le motheo wa dihlahiswa tsa tlhokomelo ya motho ka mong. Leha ho le jwalo, ho sa tsotellehe katleho ya di-surfactants tse thehilweng ho sulfate, matshwenyeho mabapi le bokgoni ba tsona ba ho teneha ha letlalo le boteng ba 1,4-dioxane, e leng sehlahiswa sa ts'ebetso ya ethoxylation, a susumeditse thahasello mefuteng e meng e se nang sulfate. Bakgethi ba tshepisang ba kenyeletsa di-surfactants tse thehilweng ho amino-acid, tse kang taurates, sarcosinates, le glutamates, tse bontshang ho tsamaisana ha di-bio le thepa e bobebe [9]. Leha ho le jwalo, dihlopha tse kgolo tsa dihlooho tsa polar tsa mefuta ena hangata di sitisa ho thehwa ha dibopeho tsa micellar tse tshwerweng haholo, e leng se hlokang tshebediso ya diphetoho tsa rheological.

Sodium methyl cocoyl taurate (SMCT; HO BOSOSOA:
CCCCCCCCCCCC(=O)N(C)CCS(=O)(=O)O[Na]) ke anionic surfactant e entsoeng e le letsoai la sodium ka ho kopanya amide ea N-methyltaurine (2-methylaminoethanesulfonic acid) ka ketane ea mafura a acid e tsoang kokonate. SMCT e na le sehlopha sa hlooho sa taurine se kopantsoeng le amide hammoho le sehlopha se matla sa anionic sulfonate, e leng se etsang hore e bole 'me e lumellane le pH ea letlalo, e leng se e behang e le mokhethoa ea tšepisang bakeng sa liforomo tse se nang sulfate. Li-surfactant tsa Taurate li khetholloa ka ho thibela ha tsona ho matla, ho mamella metsi a thata, bonolo le botsitso bo pharaletseng ba pH.

Dipharamithara tsa rheological, ho kenyeletsoa le ho shear viscosity, viscoelastic moduli, le khatello ea chai, li bohlokoa ho khetholleng botsitso, sebopeho le ts'ebetso ea lihlahisoa tse thehiloeng ho surfactant. Mohlala, ho shear viscosity e phahameng ho ka ntlafatsa ho bolokoa ha substrate, ha khatello ea chai e laola ho khomarela ha motsoako letlalong kapa moriring kamora ts'ebeliso. Litšobotsi tsena tsa macroscopic rheological li fetoloa ke lintlha tse ngata, ho kenyeletsoa le mahloriso a surfactant, pH, mocheso, le boteng ba li-solvents kapa li-additives. Li-surfactants tse nang le chaji e fapaneng li ka feta liphetohong tse fapaneng tsa microstructural, ho tloha ho micelles e chitja le li-vesicles ho ea ho mekhahlelo ea kristale ea metsi, e leng se amang haholo rheology e kholo. Metsoako ea li-surfactants tsa amphoteric le anionic hangata e theha li-micelles tse telele tse kang liboko (WLMs), tse ntlafatsang haholo thepa ea viscoelastic. Ka hona, ho utloisisa likamano tsa microstructure-thepa ke habohlokoa bakeng sa ho ntlafatsa ts'ebetso ea sehlahisoa.

Lithuto tse ngata tsa liteko li batlisisitse litsamaiso tsa binary tse tšoanang, tse kang CAPB-SLES, ho hlakisa motheo oa sebopeho sa thepa ea tsona. Mohlala, Mitrinova et al. [13] e hokahantse boholo ba micelle (radius ea hydrodynamic) le viscosity ea tharollo ho CAPB-SLES-medium-chain co-surfactant mixes e sebelisang rheometry le dynamic light scattering (DLS). Mechanical rheometry e fana ka temohisiso mabapi le phetoho ea sebopeho sa metsoako ena 'me e ka eketsoa ke optical microrheology e sebelisang diffusing wave spectroscopy (DWS) e atolosang sebaka sa maqhubu a fumanehang, e hapang dynamics ea nako e khuts'oane haholo-holo e amanang le lits'ebetso tsa ho phomola tsa WLM. Ho DWS microrheology, karolelano ea sekwere sa li-probe tse kentsoeng tsa colloidal e lateloa ha nako e ntse e ea, e nolofalletsang ho ntšoa ha moduli ea viscoelastic e otlolohileng ea medium e potolohileng ka kamano e akaretsang ea Stokes-Einstein. Mokhoa ona o hloka feela li-volumes tse fokolang tsa sampole 'me kahoo o na le molemo bakeng sa ho ithuta maro a rarahaneng a nang le ho fumaneha ho fokolang ha thepa, mohlala, li-formulations tse thehiloeng ho protheine. Tlhahlobo ea data ea < Δr²(t)> ho pholletsa le li-spectra tse pharaletseng tsa maqhubu e thusa ho hakanya liparamente tsa micellar tse kang boholo ba letlooeng, bolelele ba ho kopana, bolelele ba ho phehella, le bolelele ba contour. Amin le ba bang ba bontšitse hore metsoako ea CAPB-SLES e lumellana le likhakanyo tse tsoang khopolo-taba ea Cates, e bonts'a keketseho e hlakileng ea viscosity ka ho eketsoa ha letsoai ho fihlela khatello ea bohlokoa ea letsoai, eo ho eona viscosity e theohelang ka potlako - karabelo e tloaelehileng lits'ebetsong tsa WLM Xu le Amin ba sebelisitse rheometry ea mechini le DWS ho hlahloba metsoako ea SLES-CAPB-CCB, e senola karabelo ea rheological ea Maxwellian e bontšang sebopeho sa WLM se kopaneng, e ileng ea tiisoa hape ke liparamente tsa microstructural tse fumanoeng ho tsoa litekanyo tsa DWS. Ha e hahuoa holim'a mekhoa ena, thuto ea hajoale e kopanya rheometry ea mechini le microrheology ea DWS ho hlakisa hore na litlhophiso tsa microstructure li tsamaisa boitšoaro ba shear ba metsoako ea CAPB-SMCT joang.

Ka lebaka la tlhoko e ntseng e eketseha ea metsoako e hloekisang e bonolo le e tsitsitseng haholoanyane, ho batlisisa li-surfactants tsa anionic tse se nang sulfate ho hatetse pele ho sa tsotellehe liphephetso tsa ho etsa metsoako. Meralo e fapaneng ea limolek'hule ea litsamaiso tse se nang sulfate hangata e hlahisa liprofaele tse fapaneng tsa rheological, e leng se thatafatsang maano a tloaelehileng a ntlafatso ea viscosity joalo ka letsoai kapa polymeric thickening. Mohlala, Yorke le ba bang ba batlisisitse mekhoa e meng e seng ea sulfate ka ho batlisisa ka mokhoa o hlophisehileng thepa ea foam le rheological ea metsoako ea binary le ternary surfactant e nang le alkyl olefin sulfonate (AOS), alkyl polyglucoside (APG), le lauryl hydroxysultaine. Karolelano ea 1:1 ea AOS-sultaine e bontšitse litšobotsi tsa ho fokotsa le ho fokotsa foam tse tšoanang le CAPB-SLES, e bontšang sebopeho sa WLM. Rajput le ba bang [26] ba hlahlobile surfactant e 'ngoe e se nang sulfate anionic, sodium cocoyl glycinate (SCGLY), hammoho le li-co-surfactants tse seng tsa ionic (cocamide diethanolamine le lauryl glucoside) ka DLS, SANS, le rheometry. Leha SCGLY e le 'ngoe e ne e theha li-micelles tse chitja haholo, ho eketsa li-co-surfactant ho nolofalitse kaho ea libopeho tse rarahaneng tsa micellar, tse lumellanang le phetoho e tsamaisoang ke pH.

Ho sa tsotellehe tsoelo-pele ena, lipatlisiso tse fokolang ha li bapisoa li shebane le litšobotsi tsa rheological tsa litsamaiso tse tsitsitseng tse se nang sulfate tse kenyeletsang CAPB le taurates. Phuputso ena e ikemiselitse ho tlatsa sekheo sena ka ho fana ka e 'ngoe ea litlhaloso tsa pele tsa rheological tse hlophisitsoeng tsa sistimi ea binary ea CAPB-SMCT. Ka ho fetola sebopeho sa surfactant ka mokhoa o hlophisehileng, pH, le matla a ionic, re hlakisa lintlha tse laolang viscosity ea shear le viscoelasticity. Re sebelisa rheometry ea mechini le microrheology ea DWS, re lekanya litlhophiso tsa microstructural tse thehiloeng boitšoarong ba shear ba metsoako ea CAPB-SMCT. Liphuputso tsena li hlakisa tšebelisano-'moho pakeng tsa pH, karolelano ea CAPB-SMCT, le maemo a ionic ho ntšetseng pele kapa ho thibela ho thehoa ha WLM, ka hona li fana ka temohisiso e sebetsang mabapi le ho fetola liprofaele tsa rheological tsa lihlahisoa tse tsitsitseng tse thehiloeng ho surfactant bakeng sa lits'ebetso tse fapaneng tsa indasteri.