Litokisetso tsa emulsion tsa litlolo

Ho kopanngoa ha likaroloana tse nyane tsa oli ha ho hlatsuoa le liforomong tsa shampoo ho bonts'a thepa ea mantlha ea emulsification eo alkyl polyglycosides e lokelang ho lebelloa ho e bontša joalo ka li-nonionic surfactants. Leha ho le joalo, kutloisiso e nepahetseng ea boits'oaro ba mohato lits'ebetsong tsa likarolo tse ngata e ea hlokahala molemong oa ho lekola li-alkyl polyglycosides e le li-emulsifiers tse matla hammoho le li-coemulsifiers tse loketseng tsa hydrophobic. tekanyo, ka tekanyo ea polymerization (DP). Ts'ebetso e kopaneng ea sefahleho e eketseha ka bolelele ba ketane ea alkyl mme e maemong a holimo haufi kapa kaholimo ho CMC ka boleng bo ka tlase ho 1 mN/m. Sehokelong sa oli sa metsi / liminerale, C12-14 APG e bonts'a tsitsipano e tlase ho feta C12-14 alkyl sulfate lnterfacial tsitsipano ea n-decane, isopropyl myristate le 2-octyl dodecanol e lekantsoe bakeng sa alkyl monoglucosides e hloekileng (C8, C10, C12) 'me ho itšetlehile ka ho qhibiliha ha alkyl polyglycosides mokhahlelong oa oli ho hlalositsoe. Li-alkyl polyglycosides tsa ketane e mahareng li ka sebelisoa e le li-emulsifiers bakeng sa li-emulsion tsa o/w hammoho le li-hydrophobic co emulsifiers.

Alkyl polyglycosides e fapane le li-ethoxylated nonionic surfactants ka hore ha li kenelle phetohong e bakoang ke mocheso ho tloha ho oli-in-water (O/W) ho ea ho oli-in-water (W/O) emulsions. Ho e-na le hoo, thepa ea hydrophilic/lipophilic ho leka-lekana ka ho kopanya le hydrophobic emulsifier e kang glycerin mono-oleate (GMO) kapa dehydrated sorbitol mono-laurate (SML). tsamaiso ea mafura a joala ethoxylates haeba karolelano ea motsoako oa hydrophilic / lipophilic emulsifier tsamaisong e seng ethoxylated e sebelisoa ho e-na le mocheso e le parameter ea bohlokoa ea boitšoaro.

Sistimi ea dodecane, metsi, Lauryl Glucoside le Sorbitan Laurate joalo ka hydrophobic coemulsifier e etsa li-microemulsions ka tekanyo e itseng ea ho kopanya ea C12-14 APG ho SML ea 4: 6 ho 6: 4 (Setšoantšo sa 1). Likahare tse phahameng tsa SML li lebisa ho li-emulsion tsa w/o athe li-alkyl polyglycoside tse phahameng li hlahisa li-emulsion tsa o/w. Phapang ea kakaretso ea mahloriso a emulsifier e fella ka seo ho thoeng ke "tlhapi ea Kahlweit" setšoantšong sa mokhahlelo, 'mele o nang le li-microemulsions tsa mekhahlelo e meraro le mohatla o le mong-phase microemulsions, joalokaha ho hlokomeloa ka li-emulsifiers tsa ethoxylated e le mosebetsi oa mocheso.The high emulsifying Bokhoni ba motsoako oa C12-14 APG/SML ha bo bapisoa le tsamaiso ea ethoxylate ea joala bo mafura bo bonahala tabeng ea hore esita le 10% ea motsoako oa emulsifier e lekane ho theha microemulsion ea mohato o le mong.

Ho tšoana ha mekhoa ea ho fetoha ha mekhahlelo ea mefuta e 'meli ea li-surfactant ha e felle feela boitšoarong ba mohato, empa hape e ka fumanoa ho tsitsipano ea sebopeho sa tsamaiso ea emulsifying.The hydrophilic - lipophilic properties tsa motsoako oa emulsifier o fihlile tekano ha Ratio ea C12 -14 APG/SML e ne e le 4:6, mme tsitsipano ya sefahleho e ne e le tlase haholo. Habohlokoa, tsitsipano e tlase haholo ea sefahleho (hoo e ka bang 10^-3mN/m) e ile ea bonoa ho sebelisoa motsoako oa C12-14 APG/SML.

Har'a li-alkyl glycosides tse nang le li-microemulsions, lebaka la ts'ebetso e phahameng ea sefahleho ke hore hydrophilic alkyl glycosides e nang le lihlopha tse kholoanyane tsa glucoside-head le li-emulsifiers tsa hydrophobic tse nang le lihlopha tse nyane li tsoakoa sebopehong sa metsi a oli ka karolelano e loketseng. Hydration (le boholo bo sebetsang ba hlooho ea hydration) ha bo itšetlehe ka mocheso ho feta kamoo ho leng kateng ka li-surfactants tsa ethoxylated nonionic. Ka hona, tsitsipano e tšoanang ea sefahleho e hlokomeloa feela bakeng sa boitšoaro ba mohato o itšetlehileng ka mocheso hanyenyane oa motsoako o se nang ethoxylated emulsifier.

Sena se fana ka lits'ebetso tse khahlisang hobane, ho fapana le li-ethoxylates tsa joala tse mafura, li-alkyl glycosides li ka etsa li-microemulsion tse tsitsitseng mocheso. Ka ho feto-fetoha ha li-surfactant content, mofuta oa surfactant e sebelisitsoeng, le karo-karolelano ea oli / metsi, li-microemulsions li ka hlahisoa ka thepa e khethehileng, e kang pepenene, viscosity, liphello tsa phetoho, le thepa ea ho phophoma. Co-emulsifier tsamaisong e tsoakiloeng ea alkyl ether sulphate le e seng ion, sebaka se atolositsoeng sa microemulsion se bonoa, 'me se ka sebelisoa ho etsa li-emulsions tsa concentrate kapa tse ntle tsa oli-metsi.

Tekolo e entsoe ka li-triangles tsa pseudoternary phase tricomponent system tse nang le alkyl polyglycoside/SLES le SML e nang le hydrocarbon (Dioctyl Cyclohexane) le alkyl polyglycoside/SLES le GMO ka oli ea polar (Dicaprylyl Ether/Octyl Dodecanol), Li bonts'a phapang le boholo. ea libaka bakeng sa o / w, w/o kapa microemulsions bakeng sa mekhahlelo e hexagonal le bakeng sa mekhahlelo ea lamellar ho itšetlehile ka sebopeho sa lik'hemik'hale le ho kopanya karo-karolelano ea likarolo. Haeba kgutlotharo tsena mokhahlelo superimposed ka congruent tshebetso kgutlotharo e bontšang ka mohlala ho foaming boits'oaro le viscosity thepa ea metsoako e tsamaisanang, ba fana ka thuso ea bohlokoa bakeng sa formulator ho fumana khethehileng le hantle etselitsoeng microemulsion formulations bakeng sa mohlala ho hloekisa sefahleho kapa refatting foam bateng. Ka mohlala, sebopeho se loketseng sa microemulsion bakeng sa ho hlapa ha foam refatting se ka fumanoa ho tloha ho kgutlotharo ea mohato.