Prepreg + Nomex honeycomb


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Carbonnewbie
Carbonnewbie
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Hello!

I am planning to make carbon fiber + nomex honey comb sandwich sheets, about 1.5 m2 pieces. The sheets are not 100% straight, but no radical shapes neither included
The skins would be app 220g/m2 carbon, and inside 4,8mm Nomex, 5mm thick. What are my possibilities?
I red about dipping the honeycomb in epoxy. Also about the adhesive films etc. Even some sources say, that I can do everything in one pass, without glues (when using prepreg)..... 

Only the surface facing to the mold has to be perfect, other side does not matter at all.



Carbonnewbie
Edited 9 Years Ago by Carbonnewbie
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f1rob
f1rob
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When you say "perfect" what exactly do you want ?

If you want perfect out of the mould your only choice is 2 shot with film glue

You can get some pre preg resin systems that are core bondable (mtm28b for example) that you could do it in one hit with but you will almost certainly need to to lacquer to get a perfect Finnish

A debulk on your 1st ply will help

If you are doing a autoclave cure always use a vented cure
GO

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