Aramid fiber yog hu ua polybenzoylenediamine, thiab carbon fiber, ultra-siab molecular hnyav polyethylene fiber ntau thiab lub ntiaj teb no peb loj-kev ua tau zoo fiber ntau, kuj me me ntom, siab zog, siab modulus, kub kuj, corrosion kuj, rwb thaiv tsev, yog dav siv nyob rau hauv tub rog, aerospace, khoom siv hluav taws xob, kev thauj mus los, kev tsim kho, kev kho mob thiab lwm yam. Aramid fiber ntau yog cov hluavtaws hluavtaws polyamide fiber ntau, uas yog tsim los ntawm cov hluavtaws linear polymer (tsawg kawg 85% ntawm amide daim ntawv cog lus ncaj qha mus rau ob lub nplhaib uas muaj ntxhiab) tsim los ntawm amide bond interconnecting aromatic nplhaib (Ar-CONH-Ar). Cov saw tseem ceeb yog tsim los ntawm cov nplhaib uas muaj ntxhiab thiab cov khoom sib txuas ua ke, thiab cov nplhaib uas muaj ntxhiab tsw yog nruj. Cov saw hlau polymer yog ncab los tsim cov qauv zoo li tus pas nrig.
Nyob rau tib lub sijhawm, cov qauv linear ntawm cov saw molecular ua rau aramid fiber ntau qhov chaw siv tus nqi siab, yog li lub ntim ntim tuaj yeem ua kom haum rau ntau cov polymer, yog li lub zog siab dua. Qhov sib txawv ntawm cov khoom siv hloov pauv tau yooj yim polymer molecular chains, cov saw tseem ceeb ntawm para-aramid fiber ntau yog tsim los ntawm tus pas nrig zoo li cov qauv molecular tsim los ntawm lub nplhaib benzene. Vim tias muaj cov nplhaib sib txuas loj benzene, cov saw hlau molecular yog qhov nyuaj rau tig sab hauv, yog li nws nthuav tawm cov qauv tsis sib xws.
Post lub sij hawm: Nov-30-2023
