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[[Image:Kevlar chemical structure.png|thumb|400px|Para-aramid structure]] ...nt, and that company was the first to introduce a ''para-aramid'' called [[Kevlar]] in 1973. A similar fiber called [[Twaron]] with roughly the same chemica

** [[aramid|Aromatic polyamids]] (aramids) such as Twaron, Kevlar and Nomex thermally degrade at high temperatures and do not melt. These fib [[no:Fiber]]

...implest polymer architecture is a ''linear'' chain: a single backbone with no branches. A related unbranching architecture is a ''ring'' polymer. A [[bra ...lasticized polyvinylchloride, is used for things such as pipes. A pipe has no plasticizers in it, because it needs to remain strong and heat-resistant. P

...ques—such materials can be spun into fibers with strength greater than [[Kevlar]], and unique electrical properties. These materials are not aerogels, howe [[no:Aerogel]]

| Name = Kevlar | ImageFile1 = Kevlar chemical structure.png

.../sub> + 2 NH₃ → H₂NC₆H₄NO₂ + NH₄Cl :H₂NC₆H₄NO₂ + 3 H₂ → H₂NC₆H<sub>4<

...exUriServ/LexUriServ.do?uri=CELEX:32006R1907:EN:NOT |title=Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006 [[Chrysotile]], [[CAS registry number|CAS No.]] 12001-29-5, is obtained from [[serpentinite]] rocks which are common thr