Table 2. Classification of Polyamide

Classification Monomers Structures Melting point (°C) Applications
Polyamide 6 caprolactam 215~225
Polyamide 66 HMDA*, adipic acid 255~260 General Machinery Parts: Gear, bearing, chem, nylon boil, valve sheet, bolt, nut, packing
Polyamide 610 HMDA*, sebacic acid 213~215 Automobile parts: carburetor-needle valve, oil reserve tank, speed meter gear, wire harness connector
Polyamide 46 butanediamine, adipic acid 278~290
Polyamide 11 aminoundecanonic acid 187 Electric parts: coil bobbins, relay parts, washers, refrigerators, door latches, gears, connectors, plugs
Polyamide 12 laurolactam 176~183 Construction parts: chassis parts, door latch, curtain rollers
Polyamide 6-6T HMDA*, adipic acid terephthalic acid 310 Sundry: Crockery for artisan, non-return hammer head, lighter body, hanger book, comb, soles
Polyamide 6-6IT HMDA*, adipic acid isophthalic acid terephthalic acid 310 Pressed products: film, tube, sheet, monofilament (toothbrush)
Polyamide 6M-T HMDA*, methylpentane diamine terephthalic acid 305 Sporting Goods: Ski boots, roller blades, snow bikes, bowling pins
Polyamide 9-T nonadiamine methyloctane diamine terephthalic acid 263~306