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 kachitidwe ka gawo mu machitidwe amitundu yambiri ndikofunikira kuti muwunikire ma alkyl polyglycosides ngati emulsifiers amphamvu kuphatikiza ndi ma hydrophobic coemulsifiers oyenera. kuchuluka, ndi digiri ya polymerization (DP). Zochita zolumikizana zimawonjezeka ndi kutalika kwa unyolo wa alkyl ndipo ndipamwamba kwambiri pafupi kapena pamwamba pa CMC ndi mtengo wochepera 1 mN/m. Pa mawonekedwe amafuta amadzi/mineral, C12-14 APG ikuwonetsa kupsinjika kwapang'onopang'ono kuposa C12-14 alkyl sulfate lnterfacial kukangana kwa n-decane, isopropyl myristate ndi 2-octyl dodecanol ayesedwa kwa alkyl monoglucosides koyera (C8, C10, C12) ndi kudalira kwawo pa kusungunuka kwa alkyl polyglycosides mu gawo la mafuta kwafotokozedwa. Medium-chain alkyl polyglycosides angagwiritsidwe ntchito ngati emulsifiers wa ma emulsion a o/w kuphatikiza ndi hydrophobic co emulsifiers.

Ma Alkyl polyglycosides amasiyana ndi ma ethoxylated nonionic surfactants chifukwa sasintha magawo osinthika kuchokera kumafuta am'madzi (O/W) kupita kumafuta am'madzi (W/O) emulsions. khalani oyenerera posakaniza ndi hydrophobic emulsifier monga glycerin mono-oleate (GMO) kapena dehydrated sorbitol mono-laurate (SML). Ndipotu, khalidwe la gawo ndi kusagwirizana kwapakati pa alkyl polyglycoside emulsifier system ndizofanana kwambiri ndi zomwe zimachitika kawirikawiri. mafuta mowa ethoxylates dongosolo ngati kusakaniza chiŵerengero cha hydrophilic/lipophilic emulsifier mu dongosolo non-ethoxylated ntchito m'malo kutentha monga kiyi gawo khalidwe parameter.

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. Kusintha kwa chiwerengero cha emulsifier ndende kumabweretsa zomwe zimatchedwa "Nsomba ya Kahlweit" mu chithunzi cha gawo, thupi lomwe lili ndi magawo atatu a microemulsions ndi mchira umodzi wa gawo limodzi la microemulsions, monga momwe amaonera ndi ethoxylated emulsifiers monga ntchito ya kutentha. Kuchuluka kwa C12-14 APG/SML osakaniza poyerekeza ndi mafuta amowa ethoxylate dongosolo zimaonekera mu mfundo yakuti ngakhale 10 % ya emulsifier osakaniza ndi okwanira kupanga single-gawo microemulsion.

Kufanana kwa magawo osinthika amitundu iwiri ya surfactant sikumangokhalira kuphatikizika kwa gawo, komanso kumapezeka muzovuta za mawonekedwe a emulsifying system.The hydrophilic - lipophilic properties of the emulsifier osakaniza anafika pa mgwirizano pamene Ratio wa C12 -14 APG/SML inali 4:6, ndipo kusagwirizana kwapakati kunali kotsika kwambiri. 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, 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.

Kuwunika 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 kusiyanasiyana ndi kusiyanasiyana. za madera a o/w, w/o kapena ma microemulsions a magawo a hexagonal ndi magawo a lamellar potengera kapangidwe kake ndi kusakanikirana kwa 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, abwino microemulsion chiphunzitso kwa refatting thovu osambira akhoza anachokera ku gawo makona atatu.