Talk:Kevlar
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Twaron is not Kevlar
editAs this entry notes, Kevlar is a registered trademark of E.I. Du Pont de Nemours and Co. Twaron is manufactured by Teijin Twaron, and is a different product, like Coke and Pepsi are different products. As Coke and Pepsi are both colas, Kevlar and Twaron are both aramid fibers. Kevlar, however, is not "also known as" Twaron; they are two competing products.
5 times as strong as steel?
editThis is debateable as there are many different types of steel. It could be between 3.31 and 77 times as strong, depending on your source of data. How about Dupont claim Kevlar is 5 times as strong as steel?
- Does it help that people say that its 5 times stronger weight for weight?
its a throw away comment as the type of strength isn't qualified like tensile or dynamic
It's imposible to be 5 times stronger than a good steel polyalloy. Maybe it's steel 5 times stronger than kevlar. - Having same thickness of steel and Kevlar, Winning side will be of Kevlar for higher strength.
Was researching Kevlar for something and my source text claimed 10x higher tensile strength, vs. the 5x on this article and the linked DuPont source. Can the sentence be rephrased to reflect the current DuPont wording? — Preceding unsigned comment added by DorotheaBredon (talk • contribs) 12:38, 26 September 2024 (UTC)
the picture
editI check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of Kevlar's orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.
Reference named "Book":
- From Asbestos: Jessica Elzea Kogel; et al., eds. (2006). Industrial minerals & rocks: commodities, markets, and uses. Society for Mining, Metallurgy, and Exploration. p. 195. ISBN 978-0-87335-233-8.
- From Lester Shubin: Sharon Rose, Neil Schlager (2003). How things are made: from automobiles to zippers. Black Dog & Leventhal. ISBN 1-57912-274-4.
I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. Feel free to remove this comment after fixing the refs. AnomieBOT⚡ 16:35, 11 July 2023 (UTC)
Semi-protected edit request on 6 September 2023
editThis edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request. |
I would like to provide a citation for the missing citation under 'Production'
Quote needing citation : "Kevlar production is expensive because of the difficulties arising from using concentrated sulfuric acid, needed to keep the water-insoluble polymer in solution during its synthesis and spinning"
[1] Roseifyy (talk) 04:21, 6 September 2023 (UTC)
References
- ^ "Chemical of the Week: Kevlar". rrc.ca. Red River College Polytech. Retrieved 6 September 2023.
Kevlar verses materials that contain Kevlar
editThis article describes all sorts of uses for Kevlar as if Kevlar is always the whole of the material. Where ever the article discusses a use, it ought to specify in what form Kevlar is used, eg is it woven fibers, is it chopped kevlar fibers reinforced epoxy resin, is it chopped kevlar fibers reinforced polypropylene, is it knitted fibres, it is braided fibres... FreeFlow99 (talk) 15:07, 28 August 2024 (UTC)