Amalungiselelo e-emulsion ye-cosmetic

Ukwenziwa kwe-solubilization yemilinganiselo emincinci ye-oyile ekuhlanjululweni nasekuxutyweni kweshampoo kubonisa iimpawu ezisisiseko ze-emulsification ekufuneka i-alkyl polyglycosides ilindeleke ukuba izibonise njenge-nonionic surfactants. Nangona kunjalo, ukuqonda okufanelekileyo kokuziphatha kwesigaba kwiinkqubo ze-multicomponent kuyimfuneko ukwenzela ukuvavanya i-alkyl polyglycosides njenge-emulsifiers enamandla ngokudibanisa ne-hydrophobic coemulsifiers efanelekileyo. Ngokubanzi, umsebenzi we-interfacial we-alkyl polyglycosides unqunywe ngubude be-carbon chain kwaye, ukuya ngaphantsi. ubungakanani, ngeqondo lepolymerization (DP). Umsebenzi we-Interfacial unyuka ngobude bekhonkco le-alkyl kwaye uphezulu kufuphi okanye ngaphezu kwe-CMC ngexabiso elingaphantsi kwe-1 mN/m. Kwi-interface ye-oyile yamanzi/yeminerali, i-C12-14 APG ibonisa ukunyanzeliswa komphezulu ophantsi kune-C12-14 alkyl sulfate lnterfacial tension ye-n-decane, isopropyl myristate kunye ne-2-octyl dodecanol ilinganiswe kwi-alkyl monoglucosides ecocekileyo (C8, C10,C12) kunye nokuxhomekeka kwabo kwi-solubility ye-alkyl polyglycosides kwinqanaba leoli lichazwe. I-alkyl polyglycosides yetsheyini ephakathi isenokusetyenziswa njengesithambiso se-emulsion ye-o/w zidityaniswe ne-hydrophobic co emulsifiers.

I-Alkyl polyglycosides ihluke kwi-ethoxylated nonionic surfactants ngenxa yokuba ayifuni ukuguqulwa kwesigaba seqondo lokushisa ukusuka kwioli emanzini (O / W) ukuya kwi-oyile emanzini (W / O) emulsions. Endaweni yoko, iimpawu ze-hydrophilic / lipophilic ziyakwazi lungelelaniswa ngokuxuba kunye ne-hydrophobic emulsifier efana ne-glycerin mono-oleate (GMO) okanye i-sorbitol e-dehydrated mono-laurate (SML) . Enyanisweni, ukuziphatha kwesigaba kunye noxinzelelo lwangaphakathi lwenkqubo ye-alkyl polyglycoside emulsifier ifana kakhulu neyesiqhelo. i-fatty alcohol ethoxylates system ukuba umxube wokuxuba we-hydrophilic/lipophilic emulsifier kwi-non-ethoxylated system isetyenziswa endaweni yobushushu njengeparameter yokuziphatha kwesigaba esiphambili.

Inkqubo ye-dodecane, amanzi, i-Lauryl Glucoside kunye ne-Sorbitan Laurate njenge-hydrophobic coemulsifier yenza i-microemulsions kwi-mixing ratio ye-C12-14 APG kwi-SML ye-4: 6 ukuya ku-6: 4 (Umfanekiso 1). Iziqulatho eziphezulu ze-SML zikhokelela kwi-emulsions ye-w/o ngelixa iziqulatho eziphezulu ze-alkyl polyglycoside zivelisa i-o/w emulsions. Ukwahluka kwe-concentration ye-emulsifier epheleleyo kubangela oko kuthiwa "intlanzi ye-Kahlweit" kumzobo wesigaba, umzimba oqukethe i-microemulsions yesigaba sesithathu kunye nomsila we-microemulsions yesigaba esisodwa, njengoko kubonwa nge-emulsifiers ethoxylated njengomsebenzi wokushisa.I-emulsifying ephezulu umthamo we-C12-14 APG/SML umxube xa kuthelekiswa ne-fatty alcohol ethoxylate system ibonakala kwinto yokuba ne-10% yomxube we-emulsifier yanele ukwenza i-microemulsion yesigaba esinye.

Ukufana kweepatheni zokuguqulwa kwesigaba seentlobo ezimbini ze-surfactant akukhawulelwanga kuphela kwindlela yokuziphatha kwesigaba, kodwa kunokufumaneka kwi-tension ye-interface ye-emulsifying system.I-hydrophilic - i-lipophilic properties yomxube we-emulsifier ifikelele ekulinganisweni xa i-Ratio ye-C12 -14 APG / SML yayingu-4: 6, kwaye ukuxhatshazwa kwe-interfacial kwakuyeyona nto iphantsi. Okuqaphelekayo, ubuncinci boxinzelelo lobuso obusezantsi kakhulu (malunga ne-10^-3mN / m) yabonwa ngokusebenzisa i-C12-14 APG / SML umxube.

Phakathi kwe-alkyl glycosides equlethe i-microemulsions, isizathu sokusebenza okuphezulu kwe-interfacial kukuba i-hydrophilic alkyl glycosides kunye namaqela amakhulu e-glucoside-head kunye ne-hydrophobic co-emulsifiers kunye namaqela amancinci axutywe kwi-interface yeoli-amanzi ngokomlinganiselo ofanelekileyo. I-Hydration (kunye nobukhulu obusebenzayo bentloko ye-hydration) ayixhomekeke kancinci kwiqondo lokushisa kunokuba kunjalo nge-ethoxylated nonionic surfactants. Ke ngoko, ukuxinana kobuso obunxuseneyo kujongwa kuphela kwindlela yokuziphatha exhomekeke kancinci kwiqondo lobushushu lomxube we-emulsifier ongeyo-ethoxylated.

Oku kubonelela ngezicelo ezinomdla kuba, ngokungafaniyo ne-fatty alcohol ethoxylates, i-alkyl glycosides inokwenza i-microemulsions ezinzile lokushisa. Ngokutshintsha umxholo we-surfactant, uhlobo lwe-surfactant esetyenzisiweyo, kunye nomlinganiselo we-oyile / wamanzi, i-microemulsions inokuveliswa kunye neempawu ezithile, ezifana nokungafihli, i-viscosity, imiphumo yokuguqulwa, kunye neempawu ze-foaming. I-co-emulsifier kwinkqubo edibeneyo ye-alkyl ether sulphate kunye ne-non-ion, indawo ye-microemulsion eyandisiweyo iyabonwa, kwaye ingasetyenziselwa ukwenza i-emulsions ye-concentrate okanye i-fine particle oil-water.

Uvavanyo lwenziwe ngonxantathu besigaba se-pseudoternary ye-multicomponent systems equlethe i-alkyl polyglycoside/SLES kunye ne-SML ene-hydrocarbon (i-Dioctyl Cyclohexane) kunye ne-alkyl polyglycoside/SLES kunye ne-GMO nge-oyile ye-polar (i-Dicaprylyl Ether / i-Octyl Dodecanol), Babonisa ukuguquguquka kunye nobukhulu. yeendawo ze-o/w, w/o okanye i-microemulsions yezigaba ezine-hexagonal kunye nezigaba ze-lamellar ngokuxhomekeka kwisakhiwo sekhemikhali kunye nomlinganiselo wokuxuba wamacandelo. Ukuba abanxantathu besigaba babekwe ngaphezulu koonxantathu bentsebenzo edibeneyo ebonisa umzekelo wokuziphatha ogwebu kunye neempawu ze-viscosity zemixube ehambelanayo, zibonelela ngoncedo oluxabisekileyo lomenzi we-formulator ekufumaneni iifomyulwa ze-microemulsion ezikhethekileyo neziyilwe kakuhle umz. Ngokomzekelo, ukuqulunqwa kwe-microemulsion efanelekileyo ye-refatting foam baths inokufumaneka kunxantathu wesigaba.