I know Aramid is lighter. Does it need reinforcement to equal Kevlar durability?
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Aramid vs Kevlar
- Thread starter Black_Fly
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I always thought aramid was Kevlar and you can get different weights just like glass.
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That is what I thought too, that Kevlar was is a trade mark of an aramid product!
No polyester? Same thickness? Why is it so much lighter?
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From Wikipedia: "In 1973 DuPont was the first company to introduce a para-aramid fiber, which it called Kevlar, to the market; this remains one of the best-known para-aramids and/or aramids." Obviously there are lots of incantations of aramids, of which Nomex and Kevlar are parts, but with entirely different uses.
Ah, I see. I was thinking it was somehow different in resin or fiber. Thanks.
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Aramid fibers are a family of synthetic fibers that are renowned for their exceptional strength, resilience, and high-temperature tolerance. Para-aramids, like Kevlar® and Taparon®, are particularly known for their high strength-to-weight ratio, which makes them ideal for applications such as body armor, aerospace materials, and high-performance tires. On the other hand, meta-aramids, such as Nomex® and Tametar®, excel in heat and flame resistance, making them crucial in the production of fire-resistant fabrics and protective clothing. Understanding these subtle differences can help industries select the right type of aramid fiber for their specific needs. You can visit this website for more details: https://aramidchina.com/what-are-aramid-fibers-and-how-are-aramid-fibers-manufactured/
A quick look at the site linked above doesn't seem to cover any of the materials in use like most paddlers require them, which are mainly in composite structures. That I saw, it only mentions the fibers used in ropes and fabric weaves meant for protective clothing and automobile upholstry, which is all loose fabrics without any matrix to offer rigidity (and waterproofness) that is needed for boat hulls such as canoes and kayaks. It doesn't seem to mention that the polyethylene and aramid fabrics suffer from poor compressive strengths, likely because they don't take composite rigidity into account that I saw. The info could be there, but if so, I missed it.
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