And so am I…Latest thing I did for myself here was APC2-PEI carbon plates sandwiching a Kevlar/PP stack. Boring, but bullet proof.
But here are some pictures of our semi-working HAAKE (ThermoSci) extruder. Ran some sparkle effects in some anhydrated Polypropylene so I can laminate/vacuum form it around some CF cups and bowls to seal the fibers. Yes, it will be food safe then!
Oh, and here is what happens when you have WAAAAAY too much resin in a sealed (membrane) powdered resin infusion.
Fabric just swims in resin.
oops. Wasn’t my fault, they gave me a calc sheet with 6x6" panel listed, so I doubled the resin for the 12x12"! The calcs WERE for a 12x12"
So your layup is Polypropylene, and kevlar? Wont the PP pull away from the cloth after a small bit of torque is applied to it?
Cool job you have by the way.
It is an already made 0/90 prepreg. I’d say about Vf of 80%. Check out Polystrand. Stuff cuts easily with a sharp blade, and of course isn’t tacky!! I haven’t had any issues with any of my PP prepregs. Only when I try to infuse dry fiber with PP film. Just doesn’t want to bond. It’s all about what sizing the fiber has, I’m sure.
I used a layer of an ionomer film to bond the Kevlar/PP to the CF. I didn’t trust the PP sticking to the PEI!
Recently I tried to bond PP film to a CF/epoxy plate…it didn’t stick one bit!
That makes sense now. I was wondering how you got it to stick seeing as how PP is a release agent for epoxy.