{"id":7739,"date":"2018-02-23T08:00:03","date_gmt":"2018-02-23T14:00:03","guid":{"rendered":"https:\/\/www.ulprospector.com\/knowledge\/?p=7739"},"modified":"2018-03-02T16:15:28","modified_gmt":"2018-03-02T22:15:28","slug":"pcc-water-silicone-emulsions-video","status":"publish","type":"post","link":"https:\/\/ulprospector.ul.com\/7739\/pcc-water-silicone-emulsions-video\/","title":{"rendered":"Smooth moves: Water in silicone emulsions [VIDEO]"},"content":{"rendered":"

Want to know how to create water-in-silcone emulsions? Check out the video below for tips on materials, rotation speeds, formulations, and more.<\/p>\n

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Transcript:<\/h3>\n

Hi, my name is Lucas Portilho. I’m a Pharmacist from Cosmetology Institute, and this video is exclusive for the Prospector Knowledge Center Channel. Today, I’ll talk about water-in-silicone emulsion, and compare the performance of three emulsifiers that can be used to create this kind of formulation. We know water-in-silicone emulsions offer a very pleasant sensorial experience. They acquire viscosity with no need to use polymers, or long-chain alcohols, or esters. So, they are not heavy and they are also tack free.<\/p>\n

The first emulsifier I’m going to show is the DC 5225 from Dow Corning<\/strong>. It has been used for many years in the cosmetic industry, and we use about 10% of it in the formulation. Let’s see the preparation process.<\/p>\n

Here, I used the emulsifier at 10% plus dimethicone at 15%, and elastomer silicon at 10%. We add water very slowly and the energy needed to form the emulsion is very high. From 3,000 to 5,000 rpm, approximately.<\/p>\n

And this is the only negative point. In industrial processes, companies do not always have large scale equipment capable of this agitation speed. A greater amount of water will result in more viscosity, and this emulsion is ideal to deliver water-soluble actives such as vitamin C, and as we can see, no heating is necessary.<\/p>\n

I don’t recommend adding fat-soluble actives to this formulation.<\/p>\n

Second, I will test KSG-210 from Shin-Etsu<\/strong><\/a>. This emulsifier is used at lower concentrations, but it requires a co-emulsifier in order to increase the stability. Here, we’ll use KF-6038 silicone<\/strong><\/a>. The KF 6038 silicone has an Alkyl radical that gives the stability for formulations where oils are used. So, we recommended using this Silicone whenever you use oil components in water-in-silicone emulsions.<\/p>\n

Notice that its preparation can be completed with a much lower rotation. We are using about 200 rpm. In this formulation, I used KSG 210 at 5%, combined it with KF 6038 at 1%.<\/p>\n

The third emulsifier I will test is Abil 180<\/strong><\/a>. This one is used in small concentrations. Using it as low as 2.5%, it’s possible to emulsify and provide viscosity. At high temperatures, it’s possible to form the emulsion using low rotation. Here, we can add small amounts of oily raw materials.<\/p>\n

These are the formulations I’ve just made. All of them offer very pleasant sensorial experiences, and I hope these tips provided can help my friends formulators all around the globe. Like my Facebook page to keep in touch. If you want to know more about emulsions, check my course in my website, and please feel free to send suggestions for the next topics. See you in our next videos.<\/p>\n

Looking for silicones for your personal care formulations?<\/h3>\n

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Further viewing:<\/h3>\n