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polyamide-imide
Sign in to saveAlso known as polyamide-imides, polyamideimide, polyamideimides, PAI, PAIs
Polyamide-imides are either thermosetting or thermoplastic, amorphous polymers that have exceptional mechanical, thermal and chemical resistant properties. Polyamide-imides are used extensively as wire coatings in making magnet wire. They are prepared from isocyanates and TMA (trimellic acid-anhydride) in N-methyl-2-pyrrolidone (NMP). A prominent distributor of polyamide-imides is Solvay Specialty Polymers, which uses the trademark Torlon.
~11 min read
Article
14 sectionsContents
- Chemistry
- Acid chloride route
- Diisocyanate route
- Fabrication
- Coatings
- Molded or machined articles
- [http://www.matweb.com/search/DataSheet.aspx?MatGUID=1ca9588da84640d199959da7c00a6083 Properties of molded PAI]
- High-strength grades only
- Wear-resistant PAI grades
- Injection molding
- Other applications
- See also
- References
- Further reading
Polyamide-imides are either thermosetting or thermoplastic, amorphous polymers that have exceptional mechanical, thermal and chemical resistant properties. Polyamide-imides are used extensively as wire coatings in making magnet wire. They are prepared from isocyanates and TMA (trimellic acid-anhydride) in N-methyl-2-pyrrolidone (NMP). A prominent distributor of polyamide-imides is Solvay Specialty Polymers, which uses the trademark Torlon.
Polyamide-imides display a combination of properties from both polyamides and polyimides, such as high strength, melt processibility, exceptional high heat capability, and broad chemical resistance. Polyamide-imide polymers can be processed into a wide variety of forms, from injection or compression molded parts and ingots, to coatings, films, fibers and adhesives. Generally these articles reach their maximum properties with a subsequent thermal cure process.