PA66 Nylon66: Melting Temperature, Processing Methods
Date:2022-6-01 Author:hcscrew
【PA66】Nylon 66 (PA66, Polyamide66) is an engineering thermoplastic material that has excellent mechanical properties and chemical resistance. It is used in many applications, such as automotive parts, electrical wire insulation, and cable sheathings.
Polyamide66 (Nylon66) melting temperature and features
The polymer nylon 66 is made of two monomers, adipic acid and hexamethylene diamine. Each monomer has six carbon atoms. It’s tougher and more heat resistant than nylon 6 because nylon 66 has stronger, shorter hydrogen bonds.
PA66 density 1.13-1.15 g/cm3
Glass transition temperature 54 – 58 ℃
Max/Min continuous Service temperature 80-140 ℃/-80 to -65 ℃
Melting temperature 255 – 265 ℃
PA66 processing methods
If the moisture content is over 0.2 percent, dry it at 80 to 110 °C before processing. For Injection Moulding: PA 66 melting temperature is 270-300 °C, while mould temperature is 55-80 °C.
Extrusion: A temperature between 270 and 290°C is most suitable for viscous grades.
Nylon 66 is a versatile engineering thermoplastic with high strength, ductility, and heat resistance, making it a superior alternative to metal. Since nylon 66 has a high melting point, excellent ductility, and slower permeability, it’s more resilient and more resilient after compression. There’s 12% more toughness and 20% more durability than nylon 6. Nylon 66 can be used for everything from thin-walled components to thick-walled housings. Adding fillers, fibres, internal lubricants, and impact modifiers make them easy to customize. Added fibre reinforcements can make the resin five times stronger and ten times stiffer. Adding impact modifiers to nylon 66 turns it ductile like polycarbonate.
PA66 Strengths
High temperature strength and stiffness, self-lubricating, strong impact strength even at low temperatures (better than PA 6), extremely good flow for simple processing Excellent abrasion and wear resistance, Excellent resistance to gasoline and oil, as well as fatigue resistance Excellent electrical insulating characteristics.
PA66 Limitations
High water absorption reduces electrical and mechanical characteristics, necessitates UV stabilisation, high mould shrinkage, low dimensional stability, and is vulnerable to strong acids, bases, and oxidising agents. Because of its low viscosity, PA 6 requires pre-drying before processing, making it more difficult to process. Exceptional notch sensitivity
PA66 Applications
Carpets, tyre ropes, brushes, broom bristles, filters, industrial gear, slide, cams and wheels, friction bearings and plug parts, radiator grilles, air intake manifolds, engine covers, relay boxes, electrical circuit breakers, contactors, connectors, coil formers, card guides, terminal blocks, low voltage switch gear Airbag containers, stadium chairs, photovoltaic connections, cordless hammer drills, washing machine control modules, Doorknobs, etc. Tubes for protecting wires and cables, cable ducts, packing films, furniture fittings, and medical items.
Summary
By understanding the melting point of PA66, we can optimize the screw barrel structure of a PA extruder. It also helps to select the right screw barrel.
Contact HUACHEN Screw Barrel for a quote， or to speak to our expert team about the melting points of PA Nylon plastics processed by extruder screws.
About us: HUACHEN Screw barrel Factory
HUACHEN Screw has been a leading manufacturer of PA extrusion screw barrels in Zhoushan Jintang since 1993. As one of the leading companies in designing and processing plastic filament and yarn machinery replacement parts, HUACHEN Screw can provide its customers with a wide range of services, including drawing rebuilding, design, modification, and customized screw barrels. Our company has also successfully exported and supplied screw barrels to customers worldwide. >>Learn more about our company
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