abrasion acrylic fiber alpaca fiber amide angora wool animal fiber aramid arthroplasty asbestos bmx ballistic vest bamboo fibre basalt fiber camel hair carbon fiber carbon steel cashmere wool catgut celsius chiengora climbing coefficient of friction coir composite material cotton crystallinity east asia entanglement ester ethylene fiber fiber crop fiberglass fishing line flax glass wool hawser heerlen hemp high-density polyethylene hydroxyl impact force interceptor body armor japan john charnley jute kaminsky catalyst kenaf kevlar kilogram linear low-density polyethylene low-density polyethylene melting point metallocene microfiber mineral wool mohair monomer natural fiber netherlands nomex nylon olefin fiber parachute parasailing polyester polyethylene polyolefin prusik ramie rayon sail sailing short track speed skating silicone oil silk sisal ski spandex spearfishing spider silk spinneret synthetic fiber technora teflon tenax tensile strength terrain park ticona toughness twaron united states vertebral column vinalon webbing wetting wool yachting yarn zylon