Zodzikongoletsera emulsion kukonzekera

Kusungunuka kwa zigawo zing'onozing'ono zamafuta mu mutsuko ndi shamposi zimawonetsa ma emulsification omwe alkyl polyglycosides ayenera kuwoneka ngati osagwiritsa ntchito ma nonionic surfactants. Komabe, kumvetsetsa koyenera kwa machitidwe a gawo mu machitidwe a multicomponent ndikofunikira kuti muwonetsetse kuti alkyl polyglycosides ndi emulsifiers amphamvu ophatikizana ndi ma hydrophobic coemulsifiers oyenera. Zochita zolumikizana zimawonjezeka ndi kutalika kwa tcheni cha alkyl ndipo chimakhala chapamwamba kwambiri pafupi kapena pamwamba pa CMC ndi mtengo wochepera 1 mN/m. Pa mawonekedwe amadzi / mchere wamafuta, C12-14 APG ikuwonetsa kutsika kwapang'onopang'ono kuposa C12-14 alkyl sulfate lnterfacial kukangana kwa n-decane, isopropyl myristate ndi 2-octyl dodecanol ayesedwera alkyl monoglucosides koyera (C8, C10, C12, C12) ndi kudalira kwawo kwamafuta zafotokozedwa. Medium-chain alkyl polyglycosides angagwiritsidwe ntchito ngati emulsifiers kwa o/w emulsions kuphatikiza ndi hydrophobic co emulsifiers.

Ma Alkyl polyglycosides amasiyana ndi ma ethoxylated nonionic surfactants chifukwa sasintha gawo lotenthetsera kutentha kuchokera kumafuta amafuta m'madzi (O/W) kupita kumafuta amadzimadzi (W/O). sorbitol mono-laurate (SML) .M'malo mwake, khalidwe la gawo ndi kusagwirizana kwapakati pa alkyl polyglycoside emulsifier system ndi ofanana kwambiri ndi machitidwe ochiritsira amafuta a mowa ethoxylates ngati chiŵerengero chosakanikirana cha hydrophilic / lipophilic emulsifier mu dongosolo lopanda ethoxylated likugwiritsidwa ntchito m'malo mwa kutentha monga gawo lofunika kwambiri.

Dongosolo la dodecane, madzi, Lauryl Glucoside ndi Sorbitan Laurate monga hydrophobic coemulsifier imapanga ma microemulsions pamlingo wina wosakanikirana wa C12-14 APG mpaka SML wa 4:6 mpaka 6:4 (Chithunzi 1). Zomwe zili pamwamba pa SML zimapangitsa kuti ma emulsion a w/o pomwe alkyl polyglycoside apamwamba amatulutsa ma emulsion o/w. Kusiyanasiyana kwa kuchuluka kwa emulsifier kumabweretsa zomwe zimatchedwa "Nsomba ya Kahlweit" mu chithunzi cha gawo, thupi lomwe lili ndi magawo atatu a microemulsions ndi ma microemulsions a gawo limodzi la mchira, monga momwe amachitira ndi ethoxylated emulsifiers monga ntchito ya kutentha. % ya emulsifier osakaniza ndi okwanira kupanga single-gawo microemulsion.

Kufanana kwa magawo osinthika amtundu wa mitundu iwiri ya surfactant sikungowonjezera ku machitidwe a gawo, komanso kungapezeke mu kusagwirizana kwa mawonekedwe a emulsifying system.The hydrophilic - lipophilic katundu wa emulsifier osakaniza anafika pamlingo pamene Chiŵerengero cha C12-14 APG / SML chinali 4: 6, ndi interfacial tension. Makamaka, kupsinjika kocheperako kocheperako (pafupifupi 10^-3mN/m) adawonedwa pogwiritsa ntchito kusakaniza kwa C12-14 APG/SML.

Pakati pa ma alkyl glycosides okhala ndi ma microemulsions, chifukwa cha mawonekedwe apamwamba kwambiri ndikuti ma hydrophilic alkyl glycosides okhala ndi magulu akuluakulu a glucoside-head ndi ma hydrophobic co-emulsifiers okhala ndi magulu ang'onoang'ono amasakanizidwa pa mawonekedwe amadzi amafuta mu chiŵerengero choyenera. Hydration (ndi kukula kwake kwa mutu wa hydration) sikudalira kutentha kusiyana ndi momwe zimakhalira ndi ethoxylated nonionic surfactants. Chifukwa chake, kusagwirizana kwapakati kumawonedwa kokha chifukwa cha gawo lodalira kutentha pang'ono la osakaniza omwe si a ethoxylated emulsifier.

Izi zimapereka ntchito zosangalatsa chifukwa, mosiyana ndi ethoxylates yamafuta amafuta, ma alkyl glycosides amatha kupanga ma microemulsions okhazikika kutentha. Posintha zinthu za surfactant, mtundu wa surfactant wogwiritsidwa ntchito, ndi chiŵerengero cha mafuta / madzi, ma microemulsions amatha kupangidwa ndi zinthu zinazake, monga kuwonekera, kukhuthala, kusinthika, ndi kutulutsa thovu. Co-emulsifier mu osakaniza dongosolo alkyl etha sulphate ndi sanali ion, ndi kukodzedwa microemulsion dera anaona, ndipo angagwiritsidwe ntchito kupanga maganizo kapena zabwino tinthu mafuta-madzi emulsions.

Kuunikira kwapangidwa ndi ma pseudoternary phase triangles a multicomponent system okhala ndi alkyl polyglycoside/SLES ndi SML yokhala ndi hydrocarbon (Dioctyl Cyclohexane) ndi alkyl polyglycoside/SLES ndi GMO yokhala ndi mafuta a polar (Dicaprylyl Etha/Octyl Dodecanol),Amawonetsa madera owoneka bwino/kusiyanasiyana magawo a hexagonal ndi magawo a lamellar potengera kapangidwe ka mankhwala ndi chiŵerengero chosakanikirana cha zigawozo. Ngati awa gawo makona atatu ndi superimposed pa congruent ntchito makona atatu kusonyeza mwachitsanzo thobvu khalidwe ndi mamasukidwe akayendedwe katundu wa lolingana zosakaniza, amapereka thandizo lofunika kwa formulator kupeza enieni ndi opangidwa bwino microemulsion formulations mwachitsanzo oyeretsa nkhope kapena refatting thovu osambira. Mwachitsanzo, oyenera microemulsion chiphunzitso kwa refatting thovu osambira akhoza anachokera ku makona atatu gawo.