Need lightweight plastic that will transfer heat and not melt...

[roark]

Hi,

I'm designing a model rocket that makes coffee. (Yes, I am bored with the kits!) Per the pesky "saftey code" I must construct my rocket using lightweight non-metal substances. My ideal is to fabricate a platic or ceramic containter that will surround the rocket motors. I'll put water in the container and of course I'll want it to boil. For this I need the heat from the motors. Stage 1 will provide heat from the outside of the motor (about 100 degrees for 6 seconds. Stage 2 will eject the stage one motor and provide the same heat from the outside of the motor. It will also flame directly onto the bottom half of the container (I haven't found a spec on this yet but it's going to be 'wicked' hot...say 1000 degress for about 6 seconds). Finally, there will be a small explosion to pop the chute out. I can put the container below this but if the material can handle it I'd rather suck up some more heat.

Is there a plastic or ceramic material that will fit the bill? Oh yeah, I want to drink the coffee when done so this material has to be sterile as well.

Thanks in advance!

 

[PravinP]

Roark,

Most of the plastics are non heat conductive. So when you apply heat, they start melting at a certain temp or over a range of temp. You can contact big plastic companies (DuPont, GE, BASF, RTP, LNP, etc), they might help you, but I doubt.

PravinP

 

[TheAnswerGuy]

roark,

As a Plastic Engineer, I can think of no polymer that will allow you to accomplish your objective. Although I believe the non-metallic material that you need to use is "Ceramic".

 

[roark]

Hi,

Thanks, I figured this as well but I can't find a similar ceramic forum that isn't arts and crafts related. Do you happen to know of any? Thanks!

 

[TheAnswerGuy]

roark,

Try asking your question in the electronics fourm area. Ceramics are used as insulators and capacitive discharge materials.