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Polyimide buv

laH wav polyimide vaj polycondensation 'ej cha' Segh polyaddition.

(1) qon condensation Segh polyimide, condensed aromatic polyimide aromatic amines 'ej aromatic yuan cha' cha' anhydride, pey carboxylic aromatic joq aromatic carboxylic pey loS loS cha' alkyl esters lIng. qach synthesis reaction condensation Segh polyimide qabwIj cha' dimethyl formamide, n-methyl pyrrolidone jen aprotic solvents 'ej polyimide composite Hap 'u' pub motlh prepreg mIw molding, Hap 'u' ram Qu'maj mung je mIw roD jen aprotic solvent neH prepreg pub Qatlh evaporate, legh rap poH polyamic pey cyclization (imide) puj je volatile release , baS ngeD porous composite products lIng, 'oH Qatlh jen laHlIj, pagh porosity Hap 'u' composite Suq. vaj qup lo' condensation Segh polyimide je matrix resin composite Hap 'u', rewbe'mey'e' lo' neH mIllogh qonwI' polyimide lang qoSta' coatings 'ej manufacture.

(2) polyaddition Segh polyimide mo' polyimide shortcomings, chaq in order to shortcomings overcome Segh condensation Hach polyaddition Segh polyimide. rewbe'mey'e' poly bismaleimide 'ej norbornene widely lo' Qu'mey potlh polyimides baq. motlh resins 'eS relative molecular MaQa' unsaturated ghom bertlham, jatlhqa' vegh unsaturated 'er'In ghom polymer applications polyimide.

①polybismaleimide, Poly bismaleimide maleic anhydride 'ej cha' aromatic amines cha' je polycondensation. yIqaw polyimide quvmoH 'e' qawqu' qul naQmey, compared 'oH 'ach synthetic mIw nap Hergh vutmeH ngeD processing, 'eS cost, vaj Sar products composite. 'ach brittle puS vor.

polyimide resin baq waw' ②norbornene 'eb, So'meH rav potlh 'oH nuq'e' pmr nasa lewis Segh development (insitu polymerization monomer reactants, monomeric reactant qaStaHvIS-situ polymerization) botlh Qul polyimide resin. rmr Segh polyimide resin cha' alkyl esters pey carboxylic aromatic, loS amines aromatic 'ej yuan cha' 5-norbornene-2, alcohol (such as methanol pagh ethanol), waw' 3 wejmaH cha' carboxylic pey monoalkyl ester monomers neH mum ngoS Hoch laH Hoch wo' yIlo' taS impregnation fibers.