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How would you interpret these mixing instructions?
“Mix all ingredients and heat to 80 °C. Add phase C to phase A+B and
homogenise via vigorous stirring for approx. 10 min.”-1- Do you think they are saying that the preparation needs to be brought to 80 degrees and kept at 80 degrees for the full 10 minutes? Or probably not?-2- How fast (in RPM) do you interpret “vigorous stirring” to be? I see some references online that some people consider this 500RPM and others 16,000RPM.Thank you.(Full text is contained here, but I don’t think it’s more helpful than the above excerpt. Thank you. https://cosphatec.com/en/formulations/?product=1069 ) -
1 Reply
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Since there is an A and B phase it’s important to know what ingredients are in A and what ingredients are in B. In their formulations that is listed on the left side column.
So, that means in one container mix the A phase. Then slowly add phase B ingredients with high shear mixing. These are the polymers and they need to go in room temp water. Then you heat up that phase.At 80C, add the ingredients from phase C (this is the oil phase). Use the homogenizer for 10 minutes. Then begin cooling down the batch.
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