Bio Composites - Working With Natural Fibres and Resins

[@dancingbird233]

Thanks for sharing! Awesome vid.

[@charlesblithfield6182]

Hi thanks for this. What brands of epoxy do you use? I want to make a bio Composite musical instrument using Amplitex.

[@ilgnir]

You used 100g of epoxy and 40g of hardener. If the ratio is 1:4, shouldn’t you use 25g of hardener only?

[@sinnombre5466]

Great work m8 🤙🏼

[@alyssavillarreal4770]

I didn't catch what kind of plan based epoxy resin you are using, would you mind sharing, please

[@BamboobicycleclubOrg]

Entropy resins

[@stauffap]

@@BamboobicycleclubOrg Those aren't 100 percent plant based though, are they? On their website they say that they only have 30 percent bio based materials in it, if i'm not mistaken. That's better than the conventional stuff, but it's still not unproblematic.

[@disband_thebbc5933]

@@stauffap I'm no chemist but I believe it's an epoxidized plant oil or glycerine, due to epoxies being a two part chemical formula I don't believe there is currently a 100% plant based epoxy resin currently available on the market. Two alternatives are Bcomp which is about 35% plant based and another brand called Sicomin which I think is around 60% plant based. Generally composites are usually around a 66% fibre to 33% resin mix by weight in the finished part so if a natural fibre is used the end part should have a much higher natural content to that of the epoxy resin used in the lay up. It might not be as eco friendly as you desire for your project but it is better than the purley synthetic composite alternatives whilst offering reasonable mechanical property characteristics for less demanding applications. it's a technology that is under active research and development so things may improve in the future.

[@stauffap]

@@disband_thebbc5933 I totally agree with you. If i needed epoxy i'd go with a brand that has a high proportion of plant based raw materials. Lets support the brands that at least try to do research in that area. I also see no reason why we can't have a 100 percent epoxy resin in the future. It's just a matter of time, i think.

[@suganthvelumani]

bio_composites-curing-time?

[@BamboobicycleclubOrg]

I would always refer to technical sheet of the glue you are using but it’s typically 24hrs.