PA66 (polyamide 66 or nylon 66), PA66 is more widely used in the automotive industry, instrument housings and other products that require impact resistance and high strength compared to PA6.
PA66 is also known as nylon 66; polyhexamethylene adipate; nylon 66, abbreviated NY66.
Chemical formula: [-NH(CH2)6-NHCO(CH2)4CO]n-
Appearance White bag or yellow granules
Density (g/cm3) 1.10-1.14
Tensile strength (MPa) 60. 0-80.0
Rockwell hardness 118
Impact strength (kJ/m2) 60-100
Static bending strength (MPa) 1 00-120
Martin Heat (°C) 50-60
Flexural modulus (MPa) 2000～3000
Volume resistivity (Ωcm) 1.83×1015
Dielectric constant 1.63
Translucent or opaque milky white crystalline polymer with plasticity. The density is 1.15 g/cm3. The temperature of 252 ° C. The embrittlement temperature is -30 °C. The thermal decomposition temperature is greater than 350 °C. Continuous heat resistance 80-120 ° C, equilibrium water absorption 2.5%. It is resistant to acids, alkalis, most inorganic salt solutions, halogenated alkanes, hydrocarbons, esters, ketones, etc., but is soluble in polar solvents such as ** and **. It has excellent wear resistance, self-lubricating properties and high mechanical strength. However, the water absorption is large and the dimensional stability is poor.
Widely used in the manufacture of mechanical, automotive, chemical and electrical components such as gears, rollers, pulleys, rollers, impellers in pump bodies, fan blades, high pressure seals, valve seats, gaskets, bushings, various handles , support frame, wire cladding, etc. It can also be made into a film for use as a packaging material. In addition, it can also be used to make ** equipment, sporting goods, daily necessities, etc.
