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chemical bang Thermoplastic Polyimide

SOLVER POLYIMIDE | Updated: Sep 15, 2014

muHIvtaHbogh Qeb aromatic bonded polymer tlham 'ej ghaj veb thermal stability, aromatic diamine aromatic cha' anhydride 'ej derived commercial thermoplastic polyimide. cha' anhydride, involves polycondensation aromatic polyimides, qeq aromatic diamine aromatic je motlh qaStaHvIS 'angbogh Da reaction medium yuQmeyDaq 'ej pey intermediate polyamic generate. laH lo' polyamide pey qaStaHvIS 'op yotlh pagh pong tuj pagh bIDameH chemical action vaj linear thermoplastic polyimide je Sa' tlham.

jen HIvje' 'elbogh bang aromatic thermoplastic polyimide transition Hat (tg) prominent, jen Hat resistance, toughness, QaQ bang electrical, DungDaj retardancy 'ej jen woj natural. 'ach qaSchoH tg 'ej viscosity thermoplastic polyimide relatively jen processing Hat, manufacturing relatively jen. qaStaHvIS 'op cases decomposition Hat polyimide chaq exceed processing Hat. naH jajmeymaj processing Hat neH linear aromatic polyimide thermal decomposition Hat wovbe' theoretically thermoplastic, 'ach pseudo thermoplastic polyimide roD pong'e'. loQ beQDaq case, ralqu'nIStaH Hergh puS Qav polyimide polyamide pey intermediate ngoS 'ej, possibly ngejtaH heating vaj polyimide moj mIllogh qonwI' qoSta' 'ay' pagh. qaStaHvIS polymer mIr juS je vo' vImughta' pagh batlhchaj Ha' aromatic resolved vaj such as ketone, ether 'ej jav fluorine pIm trimethylene flexible ghom pagh mIr SabtaHbogh cha' 'ej cha' amine aromatic polyimide intractable qay', be extent. Dub thermoplastic polyimide machinability particularly vaQ diamine aromatic perfluorinated isopropylidenebis amine (4 bdaf). cha' 4-bdaf aromatic 'ej cha' coordination reaction je figure tlham polyimide.

Dov'agh vIrur mIw puS cha' benzene amine 'ej polyimide cha' qeq polyimide aromatic vo' 4 bdaf pong thermal oxidation, thermal stability 'ej reH ghaj jen tg, polyimide exhibit electrical bang Dub qeq je luH and. 4-bdaf fluoride. diamine Dub yIlo' latlh thermoplastic polyimide processing aromatic diamine, modified siloxane 2 1 cha' je wa' pagh cha' amino benzene, indane.

'elbogh characteristics thermoplastic polyimide tuj resistance, jen tg jechlaHbe'bogh bIH. typical tg scope: vo' aromatic polyether imide 423 ° f, 'op 4-bdaf Sev polyimide 700 ° f exceeding

laH range Dub aromatic polyimide toughness compared je thermosetting polyimide, elongation rate ranges vo' 5 vatlhvI' puS 50 vatlhvI', fracture vo' 8.5 14 inch pounds per mach neH luDan inch.

electrical bang thermoplastic polyimide pov, 'ej dielectric ru'Ha'wI' jojvo' fluorinated aromatic polyimide vo' qup HoS 2.8 (1 khz) QI'yaH fluorinated polyimide (1 khz) 3.5.

puS lurIHbogh, aromatic thermoplastic polyimide resistant common 'ach organic solvents 'ej dilute pey. polyimide degradation chenmoH exposure pagh immerse reH qIm pey alkali 'ej tuj. 'op thermoplastic polyimide HoS polar organic solvent neH soluble neH.


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