Glass fiber reinforced PA66 features and applications

Glass fiber reinforced PA66 characteristics and application of 2019 - 05 - 13 PA66, Polyamide 66 English abbreviations, chemical name gather adipic acid hexamethylenediamine, commonly known as nylon 66. Is a colorless transparent semicrystalline thermoplastic polymer, are widely used in automobile, electronic appliances, machinery, instruments and meters, industrial parts, etc. But due to the large water imbibition, nylon acid resistance is poor, dry and low temperature impact strength is low and easy to deformation after water absorption, affect the dimensional stability of the products, make its application range is limited by a certain. In order to improve the above shortcomings, to expand its application field, and better meet the requirements of the use of performance, people use a variety of methods to modification of PA66, to improve the impact of PA66 plastic, thermal deformation, forming properties and resistance to chemical corrosion. Because of the glass fiber ( 女朋友) Than strength and young's modulus of 10 ~ 20 times larger than that of PA66, about 1/20 of PA66 linear expansion coefficient, bibulous rate is close to zero, and has good heat resistance and chemical resistance, so the glass fiber filling is the most common methods for reinforced PA66. PA66 is PA series of high mechanical strength, varieties, the most widely used because of its high crystallinity, therefore its rigidity, heat resistance is higher. Character translucent or opaque milk white crystal polymer, have plasticity. Density of 1. 15g/cm3。 Melting point is 252 ℃. Brittle temperature - 30℃。 The thermal decomposition temperature greater than 350 ℃. Continuous heat - 80 120 ℃, balance the bibulous rate is 2. 5%. To most acid, alkali, inorganic salt aqueous solution, halogenated hydrocarbons, esters, ketones, such as corrosion, but soluble in polar solvent phenol, formic acid, etc. With excellent wear resistance, self-lubrication, high mechanical strength. But larger water imbibition, and poor dimensional stability. Application widely used in the manufacture of machinery, automobile, chemical and electrical device parts, such as gear, roller, roller, roller, pump impeller in the body, fan blade, high pressure seal, valve seat, gasket, liner, all kinds of hand, racks, electrical, cladding, etc. Can be made into film used as packaging materials. In addition, can also be used for making medical equipment, sports goods, daily necessities, etc. The application of nylon 66 nylon 66 is mainly used in automotive, industrial machinery, electronic appliances, precision instruments, etc. From the end use, the consumption of automobile industry of nylon 66 first, electronic appliances for second place. About 88% of nylon 66 by injection molding processing into various parts, about 12% of nylon 66 is by extrusion molding, blow molding and other processed into the corresponding products. 1. Automobile industry because of nylon 66 excellent heat resistance, chemical resistance, strength and easy processing, etc. , and the application in automobile industry, now has can be used for almost all parts of the car, such as engine parts, electrical parts and body parts. Engine parts including air intake system and fuel system, such as the engine cylinder head cover, throttle, air filter machine shell, automotive air horn, automotive air conditioning hose, cooling fan and casing, pressure pipe, brake oil tank and filling and cap, and so on. Car body parts parts are: car fenders, rearview mirror, bumper, instrument panel, roof racks, door handle, take the wipers stent, buckle, car decoration and so on. The car appliances such as electric doors and Windows, connector, crisper, cable tie wire, etc. 2. Electronic appliances industry PA66 can produce electrical insulation parts, precision electronic instrument parts, electrical lighting equipment and electrical and electronic components, etc. , can be used in the production of electric rice cooker, electric vacuum cleaners, high-frequency electric food warmer, etc. PA66 with excellent solder resistance, are widely used as a junction box, the production of switch and a resistor, etc. Flame retardant PA66 level can be used in color TV wire clamp, clamp and focus knob. 3. Mechanical transportation and machinery industrial train passenger door handles, truck brake joint plate available PA66. Other insulation gasket, baffle, turbine on the ship, propeller shaft, propeller, sliding bearing, etc. Can also be made of PA66. High impact nylon 66 still can make tongs, plastic mold, radio control car, etc. Strengthened grade nylon 66 is usually used in the manufacture of low creep, no corrosion of nuts, bolts, screws, nozzle, etc; Enhance the level of nylon 66 used in the production chain, conveyor belt, blades, impeller and scaffolding fixed climbers, etc. （ Source: the micro injection molding)