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10.polyester
11. Nylon 6 & 66 are very similar materials, they do provide slightly different characteristics. The reason for the differences is largely due to their differences in chemical structure. Nylon 6 is made from one monomer which has 6 carbon atoms whilst Nylon 66 is made from 2 monomers with each one having 6 carbon atoms, hence the Nylon 66 name.
12.Polyester is a category of polymers that contain the ester functional group in their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. The material is used extensively in clothing.
13.Nylon is a versatile syntheticmaterial that can be formed into fibers, sheets, filaments orbristles. These are in turn be used in the production of fabric, yarn and cordage. For example, fine nylon 6 filaments are used in the manufacture of hosiery, knitted clothing and parachutes. Nylon 6 bristles are used to produce toothbrushes and bristle brushes. As a composite with other polymers, nylon 6 is alsoused in the production of molded products like toy cars, skate-board wheels and gun frames
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