Laminate Sample #27: Thin Open-Molded Carbon / Epoxy Sheet
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- Опубликовано: 1 авг 2024
- This Laminate Sample #27 is very simple: two plies of plain-weave carbon laminated with epoxy and consolidated with just a squeegee and roller. It shows how simple it can be to make composite sheets with reasonable resin contents and decent surface finishes.
The video compares this sample to Laminate Sample #17, which is the same idea but with e-glass instead of carbon. Both samples are similar weights (72 and 77g per square foot) and thicknesses (0.65 and 0.6mm), but the carbon is way stiffer! You can hear how "snappy" the carbon is compared to the glass, which seems almost floppy by comparison.
Thin carbon sheet is always handy and this should give an idea about weight, resin content and stiffness of a very simple panel.
Check out the EC! website for dozens of articles about building with composites:
explorecomposites.com 
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This channel needs way more hits than it has - solid content.
Thank you for the work you do, your videos are an incredible resource!
Thanks! I'm glad they're interesting!
Nice video, keep 'em coming!
Thanks! I'm really enjoying learning how to make videos and exploring all these different combinations of materials and processes. There's tons more I want to do!
Ah, you might want to fix your spreadsheet. Measured weight per square meter is 827.75 grams, not kilograms. Otherwise that would be 1 VERY heavy, resin rich laminate! Great job, love your videos.
Uh oh I forgot to show the 780mm solid lead core!
Sadly editing videos is hard but I will add a note though. Thank you for pointing out the mistake!
@@ExploreComposites Spreadsheet for your records, a simple note for the video is fine. I do love your videos, very clean, and informative. Wish I lived close, I'd love to work on some composites with you, that would be a blast!
Thank you Chris for an interesting comparison between e glass and carbon fibre. Never used ProSet myself but I was curious if you had post cured the panel/s?
Yes, kinda. The Proset 135 really benefits from a post cure and this only got up around 50C for a few hours. The glass sample was with Entropy CLR which (I think) does not benefit as much from postcuring as the Proset.
would be instructive to infuse and / or wet layup and bag this layup to compare for weight and any stiffness if you could measure that. would infused and just bagged produce the same result ?
Yes! That is part of the plan - so I'm glad you think it would be interesting. The bagged and infused samples would be thinner (floppier) and lighter (less resin) but not by a ton.
I'm trying to start grouping the samples into types that have similar properties or materials so they can be compared - which is where all these start to become useful. There is a whole list of samples to-do and the Saturdays are few and far between!
What do you use to clean the roller?
Acetone. It helps to take the roller end off. There are safer acetone alternatives available that work ok too.
If rollers get gummed up with cured resin you can sometimes fix with a heat gun or small gas torch - but it is messy and makes nasty smoke.