Advanced polymers with long-term stability at Temperatures above 400C ? as well as Composite Materials based on such matrices.
Those should be fully ORGANIC Polymers.
To obtain Hybrid and/or Inorganic polymers with long-term Temperature stability - is not a difficult problem at present time.
Leonid
I suppose poly acrylonitrile (PAN) is an option. Also Polyacrylonitrile-co-methyl(methacrylate) could be another option. You can get many studies. For example: doi:10.1016/j.eurpolymj.2011.10.006, 10.1002/pol.1966.150041005
Dear Dr. Mondal:
Thank you for your response.
BUT the systems you suggest (though have High Thermal stability) - are products of carbonization of PAN. Or in other words are alike carbon fiber, which of course has a very high thermal resistance. And can be used as fillers rather the matrix-polymers.
My question is about polymeric Thermally stable polymeric matrices.
Best Regards, Leonid
I can suggest Vespel polymer which can withstand Upto 350 degree C. But if you add graphite as a filler it will go Upto 400 degree C.
Best,
Kunal
The Polyimide Vespel , indeed, can withstand Upto 350 degree C . This polyimide is widely used for, I guess, over 30 years especially in Hight Temperature environments.
But my queston (my hope) is that by now were designed Palyimides or other Fully Aromatic polymers - with much Higher Heat resistance, namely, over 400C - as neat un-filled matrix polymers.
Do you know such ?
Leonid
Polybenzimidazole
https://en.wikipedia.org/wiki/Polybenzimidazole_fiber
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