Wow, that's cheap, thanks for the info, Michael. One pound is enough to
last two or three lifetimes of rocketry work :-)
Richard
On Fri, Jun 30, 2017 at 9:35 AM, Michael Monteith <
dmarc-noreply@xxxxxxxxxxxxx> wrote:
Richard,
I had wondered if a pure form of Sodium Laureth Sulfate would be less
of an effect on burn rate? My thinking is that the other impurities in the
product might cause the burn rate reduction. Unless people don't like
rocket trails with split ends or smell good. lol But seriously I did find
where you can get it if someone wanted a purer form.
http://www.essentialwholesale.com/product/1368/sodium-laureth-sulfate-sles
Looks like it's inexpensive enough if someone wanted to try it in it's
pure form. Considering the small amounts needed the bath gel is the way
to go.
Thanks
Michael
------------------------------
*From:* Richard Nakka <richard.rocketry@xxxxxxxxx>
*To:* sugpro@xxxxxxxxxxxxx
*Sent:* Friday, June 30, 2017 9:43 AM
*Subject:* [sugpro] Re: help
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
