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Why O/W polymers are added to W/Si emulsions?
Hello All,
I have some modest experience with O/W products and have an
idea how o/w polymers such as Sepinov EMT 10 or Aristoflex AVC work.Recently I started exploring W/Si world and had to forget
all rules I learnt before. For example O/W polymers don’t really like
electrolytes (with some exceptions), while in W/O they are must have for
stability. I also heard on the institute of personal care science channel that
O/W polymers (I think they particularly mentioned xanthan) should not be used
in W/O systems because they somehow break the emulsion.On the other hand there is Seppic’s Geltrap (that is utterly
unstable) that mixes Easynov with Sepiplus 400. Seppic however doesn’t recommend
adding electrolytes for an obvious reason (they will break gelled water phase).
I tried to apply geltrap’s logic to other materials. I mixed Aristoflex AVC
with PEG-30 Dipolyhydroxystearate W/O
HIPE emulsifier and all I got is a greasy mess with W/O properties that
separated the next day. I thought it must be a good idea because Easynov is a
combination of PEG-30 Dipolyhydroxystearate and Fluidanov. Apparently it doesn’t
work.Apologies for the long introduction, but how can this be
explained:Water, Cyclopentasiloxane, Ethylhexyl Methoxycinnamate,
Cyclohexasiloxane, Glycerin, Isododecane, Butylene Glycol, SD Alcohol 40
(Alcohol Denat.), Lauryl PEG-9
Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-4 Isostearate, Cetyl PEG/PPG-10/1 Dimethicone,
Hexyl Laurate, Disteardimonium Hectorite, Nylon-12, Glycoproteins, Panax
Ginseng Root Extract, Equisetum Arvense (Horsetail) Extract, Glycine Soja
(Soybean) Oil Unsaponifiables, Ilomastat, Ursolic Acid, Hydrogenated Lecithin,
Retinyl Palmitate, Hydrolyzed Soy Protein, Ascorbyl Palmitate, Plankton
Extract, Camellia Sinensis Leaf Extract, Carnosine, Sodium Hyaluronate, Olea
Europaea (Olive) Oil Unsaponifiables, Dimethicone/PEG-10/15 Crosspolymer,
Triticum Vulgare (Wheat) Germ Oil Unsaponifiables, Algin, Hydrolyzed Malt
Extract, Polymethyl Methacrylate, Phospholipids, Tocopheryl Acetate,
Caprylic/Capric Triglyceride, Octyldodecanol, Pollen Extract, Disodium Stearoyl
Glutamate, Acacia Senegal Gum, Magnesium Sulfate, Squalane, Dipropylene Glycol, Trihydroxystearin, Serine, Acrylates
Copolymer, Aluminum Starch Octenylsuccinate, PEG-8, Diphenyl Dimethicone, Polysorbate 60, Cellulose Gum, Hydroxyethyl Acrylate/Sodium
Acryloyldimethyl Taurate Copolymer, Sodium Phosphate, Sucrose,
Dimethicone/Vinyl Dimethicone Crosspolymer, Xanthan Gum, Caprylyl Glycol,
Aluminum Hydroxide, Propylene Glycol, BHT, Sodium Laureth Sulfate, Fragrance,
Butylphenyl Methylpropional, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde,
Hydroxycitronellal, Linalool, Citronellol, Alpha-Isomethyl Ionone, Geraniol,
Methylisothiazolinone, Phenoxyethanol, Methylparaben, Ethylparaben,
Propylparaben, Butylparaben, Titanium Dioxide, Iron Oxides, Iron Oxides, Iron
OxidesI can see several W/Si emulsifiers on the top of the list
mixed with what must be Seppic’s Simulgel NS.Does anyone know what is the purpose of O/W gelmaker in a
W/Si system?Thanks in advance!
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