Polyamide-imide (PaI) is a new product developed by the amoco research institute in Napervill, Illinois, USA in 1964. It was made into insulating varnish in 1965, and later developed ultra-high functional engineering plastics. It was launched in 1971. The product, called TORLON, was originally produced in Joliet, Ill. In 1986, it established the amoco high-performance product company, and in 1988 it moved to Greenvill, South Carolina. The advent of PaI solves the technical problem that polyimide can not be injection molded in the past, and various precision products with complicated shapes can be formed by injection process, and the production efficiency is also significantly improved. Moreover, PaI has good heat resistance, and is superior to other engineering plastics in stretching, bending, compressive strength, dimensional stability and wear resistance. The polyamide-imide is usually obtained by polycondensation of phenyl tricarboxylic anhydride and diisocyanate in a DMF solution. PaI (polyamide-imide) is a new class of engineering plastics containing amide groups. Since the polyimide molecule has a very stable aromatic heterocyclic structure, it exhibits heat resistance and low temperature resistance which are unmatched by other polymer materials, and has excellent mechanical properties and dimensional stability in a high temperature environment. . Features: High allowable operating temperature in air, best dimensional stability in the 250 OC temperature range, excellent wear and friction properties, outstanding UV resistance, superior resistance to high energy radiation, inherently low flammability. High strength, high insulation, radiation resistance, corrosion resistance, self-lubrication, and low coefficient of thermal expansion. Application: Commonly used in the manufacture of precision parts for high-tech equipment, as well as in applications where high wear resistance is required, such as non-lubricated bearings, seals, bearing spacers and reciprocating compressor parts, electronics and semi-conductor industries. Products for high temperature, high vacuum, strong radiation, ultra-low temperature conditions, molded products used as aircraft parts, reciprocating compressor impellers, bearing isolation rings, jet engine combustion system parts; chip sets and sockets, cup welding bearings Used in the manufacture of precision parts such as the electronics and semiconductor industries, oil drilling equipment, etc.
application: viation,automotive, motorbike, bicycle, automatic equipment, household appliance, medical device ,toy, telecommunication,computer, instrument and meter,furniture, electric tools,mold and other industries
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What are the characteristics and application areas of PAI plastic (polyamide)?