we check the viscosities of commercial products but they stay always stable. the way of preparing the composite may affect this? we use rotary alginate mixer for this purpose or is there some chemicals to help composites maintain its final viscosity?
we also found that the amount of silane used for surface modification affected this much but there is still a problem.
See slides 25 - 27 and onwards in:
August 12th, 2014 Applications of rheology in the waxes, creams, and emulsions arena
https://www.brainshark.com/malvern/vu?pi=879232723
Seems to me Seref is after the secret how in commercial products rheological behaviour is ensured not to change over time. Likely this is not open source.
First you have to find out what is going on in your formulation over time, build-up or loss of structure. If you understand this you may find ways preventing it.
Im not after a "secret".. We have been trying to figure out why this change happens over a long period of time. Unlike us, they produce the material in factory conditions. I just wanted to know if we are overlooking a point or doing something wrong.. but thank you, the big idea of checking formulation and structure is what we never thought of and helped a lot.
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