Shirye-shiryen emulsion na kwaskwarima 2 na 2

Cakuda man ya ƙunshi dipropyl ether a cikin rabo na 3: 1. The hydrophilic emulsifier ne 5: 3 cakuda coco-glucoside (C8-14 APG) da sodium laureth sulfate (SLES) .Wannan sosai kumfa anionic surfactant cakuda shi ne tushen da yawa jiki tsaftacewa formulations.The hydrophobic co-emulsifier ne glyceryl oleate. (GMO) .Abin cikin ruwa ya kasance baya canzawa a 60%.

Farawa tare da tsarin da ba shi da mai da haɗin kai, 40% C8-14 APG/SLES cakuda a cikin ruwa yana samar da crystal ruwa mai hexagonal. The surfactant manna ne sosai danko da kuma ba za a iya pumped a 25 ℃.

Kawai ƙaramin yanki na C8-14 APG/SLES cakuda an maye gurbinsu da hydrophobic co-surfactant GMO don samar da lokaci mai layi tare da matsakaicin danko na 23000 mPa·s a 1s-1. A aikace, wannan yana nufin cewa babban danko surfactant manna ya zama mai daɗaɗɗen surfactant.

Duk da ƙarar abun ciki na GMO, lokacin lamellar ya kasance cikakke. Koyaya, danko yana ƙaruwa sosai kuma ya kai matakan ga gel ɗin ruwa wanda har ma sama da na lokaci na hexagonal. A cikin kusurwar GMO, cakuda GMO da ruwa suna samar da gel mai siffar cubic mai ƙarfi. Lokacin da aka ƙara mai, an samar da ruwa mai jujjuyawar hexagonal tare da ruwa a matsayin lokaci na ciki. Hexagonal · ruwa crystal mai arziki a cikin surfactants da lamellar ruwa crystal sun bambanta da yawa a cikin halayensu ga ƙarin mai. Ganin cewa kristal na ruwa mai hexagonal zai iya ɗaukar ɗan ƙaramin mai kawai, yanki na lamellar ya kara nisa zuwa kusurwar mai. Ƙarfin kristal ɗin ruwa don ɗaukar mai yana ƙaruwa sosai tare da ƙara abun ciki na GMO.

Microemulsions ana yin su ne kawai a cikin tsarin da ƙananan abun ciki na GMO. Wani yanki na ƙananan danko o / w microemulsions ya shimfiɗa daga kusurwar APG/SLES tare da surfactant / man axis har zuwa man fetur na 14%. da microemulsion kunshi 24% surfactants, 4 % coemulsifier da 12% mai, wakiltar wani mai dauke da surfactant maida hankali tare da danko na 1600 mPa·s a 1 S-1.

Yankin lamellar yana biye da microemulsion na biyu. Wannan microemulsion shine gel mai arzikin mai tare da danko na 20,000 mPa·s a 1 S^-1(12 % surfactants, 8% coemulsifier, 20% mai) kuma ya dace da wankan kumfa mai sake faɗuwa. C8-14 APG / SLES cakuda yana taimakawa tare da kayan tsaftacewa da kumfa, yayin da cakuda mai ya zama kayan aikin kulawa na fata.Domin samun tasirin haɗuwa na microemulsion, dole ne a saki man fetur, wato, microemulsion dole ne ya kasance. karye a lokacin amfani. A lokacin aikin rinsing, microemulsion tare da abubuwan da suka dace suna diluted da ruwa mai yawa, wanda ya saki man fetur kuma yana aiki a matsayin kari ga fata.

Don taƙaitawa, ana iya haɗuwa da alkyl glycosides tare da masu haɗakarwa masu dacewa da kayan haɗin man fetur don shirya microemulsions. Ana nuna shi ta hanyar nuna gaskiya, kwanciyar hankali mai zafi, babban kwanciyar hankali da kwanciyar hankali.

Kaddarorin alkyl polyglycosides tare da ingantattun sarƙoƙin alkyl masu tsayi (C16 zuwa C22) kamar yadda o/w emulsifiers sun fi bayyana. A cikin emulsions na al'ada tare da barasa mai kitse ko glyceryl stearate azaman coemulsifier da mai daidaita daidaito, dogon sarkar alkyl polyglycosides suna nuna mafi kyawun kwanciyar hankali fiye da matsakaicin sarkar C12-14 APG da aka bayyana a sama. A zahiri, glycosidation kai tsaye na barasa mai kitse na C16-18 yana haifar da cakuda C16-18 alkyl polyglycoside da barasa cetearyl wanda ba za a iya kawar da barasa gaba ɗaya ta hanyar dabarun da aka saba don guje wa lalata launi da wari ba. Yin amfani da ragowar cetearyl barasa a matsayin co-emulsifier, kai-emulsifying o / w sansanonin dauke da 20-60% C6/18 alkyl polyglycoside sun fi dacewa a aikace don ƙirƙirar cremes na kwaskwarima da lotions dangane da kayan lambu gaba ɗaya. Danko yana da sauƙi don daidaitawa ta hanyar adadin alkyl polyglycoside/ cetearyl barasa fili kuma ana ganin kyakkyawan kwanciyar hankali, har ma a cikin yanayin emollient na polar sosai, kamar triglycerides.