How nylon is not a complete synthetic fiber?
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Nylon is a polymer—a plastic with super-long, heavy molecules built up of short, endlessly repeating sections of atoms, just like a heavy metal chain is made of ever-repeating links. Nylon is not actually one, single substance but the name given to a whole family of very similar materials called polyamides. So whenever we say "nylon is..." it's generally more correct to say "nylons are..."
One reason there's a family of nylons is because the original and most common form of the material, nylon 6,6, was patented by E.I. du Pont de Nemours & Company (DuPont™), the US firm where it was invented, so rivals such as German chemical giant BASF had to come up with alternatives. Another reason is that the different kinds of nylon have different properties, which makes them useful for different things. Other kinds of nylon include nylon 6, nylon 6,12, and nylon 5,10. Two other "fantastic plastics" made by DuPont, Kevlar® (a superstrong material used in bulletproof vests) and Nomex® (a fireproof textile used in racing car suits and oven gloves), are also polyamides and they're chemically related to nylon.
One reason there's a family of nylons is because the original and most common form of the material, nylon 6,6, was patented by E.I. du Pont de Nemours & Company (DuPont™), the US firm where it was invented, so rivals such as German chemical giant BASF had to come up with alternatives. Another reason is that the different kinds of nylon have different properties, which makes them useful for different things. Other kinds of nylon include nylon 6, nylon 6,12, and nylon 5,10. Two other "fantastic plastics" made by DuPont, Kevlar® (a superstrong material used in bulletproof vests) and Nomex® (a fireproof textile used in racing car suits and oven gloves), are also polyamides and they're chemically related to nylon.
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