Nikolai,
The use of surfactant to reduce slurry viscosity and make for much easier
casting is something that I feel holds great promise. However, I must admit
that I have done only very limited experimenting....too many other rocketry
projects on the go. :-\
Here is what I have learned.
Foaming bath gel with "sodium laureth sulphate" as the primary ingredient
(make sure its is exactly this, not "sodium lauryl sulphate") works very
well to reduce the slurry of KNSB such that it pours like water. Only a
tiny amount is needed, I believe it was 0.2%...a few drops. Whether or not
other products such as shampoo will work, I cannot say.
The reduction of viscosity of KNDX is less than KNSB, but still noticeable.
I found that burn rate & impulse is only slightly affected (reduced) by the
surfactant.
Check out Scott Jolley's excellent website for a LOT more details, he's the
developer of the surfactant method.
Richard
On Fri, Jun 30, 2017 at 5:03 AM, Nikolai Nielsen <
nielsen.nikolai86@xxxxxxxxx> wrote:
Richard, I see that in one of your surfactant videos you showed that foam
bath gel was used that had sodium laureth sulphate in it and I went and
found that my shampoo has that same ingredient in it, could I use the
shampoo as is or do I have to extract it somehow?
Nikolai Nielsen
