Thanks Richard
I will calculate the ideal grain density for my silicone propellant and see how
far I am from it with my casted grain.
Regarding silicone/AP propellant I am now degassing it. I have tried various
silicone and the one that works perfectly and easy to cast with a long pot life
is the following brand that you can get in the Netherlands
https://polyestershoppen.fr/siliconenrubber/siliconen-gietrubber-shore-15-216.html
https://polyestershoppen.nl/siliconenrubber/siliconen-gietrubber-shore-15-216.html
Regards
Boris
De : sugpro-bounce@xxxxxxxxxxxxx [mailto:sugpro-bounce@xxxxxxxxxxxxx] De la ;
part de Richard Nakka
Envoyé : 14 August 2023 00:30
À : sugpro@xxxxxxxxxxxxx
Objet : [sugpro] Re: Theoritical grain density
Boris, see:
https://www.nakka-rocketry.net/th_grain.html
https://www.nakka-rocketry.net/softw.html#GDC
Richard
On Sun, Aug 13, 2023 at 2:22 PM Boris du Reau <dmarc-noreply@xxxxxxxxxxxxx>
wrote:
Hi everyone
I was wondering if someone knew how to calculate the theoretical density of a
propellant grain knowing the density of each components for that grain.
I wanted to do it for my silicone/AP based propellant in order to know how far
my grains are from ideal grain density and do some quality control before
firing my motors
Regards
Boris
