Muaj qhov sib txawv tseem ceeb ntawm carbon fiber precursor filaments thiab carbon fiber nyob rau hauv cov nqe lus ntawm ob qho tib si ntau lawm thiab daim ntawv thov. Carbon fiber precursor filaments-tseem hu ua carbon fiber precursors-xa mus rau cov polymer filaments siv thaum lub sij hawm cov txheej txheem carbon fiber manufacturing. Raws li cov khoom siv tshwj xeeb siv rau cov khoom ua ntej, cov filaments no tuaj yeem muab faib ua ntau hom, xws li polyacrylonitrile (PAN)-raws li, pitch-raws li, rayon-raws li, thiab vapor- cog carbon fibers.
Cov pa roj carbon fiber nws tus kheej yog cov khoom siv carbonaceous filamentous uas yog ib qho inorganic polymer fiber nrog lub cheeb ntawm kwv yees li 5 mus rau 10 micrometers thiab cov ntsiab lus carbon ntau tshaj 95%. Carbon fiber possesses exceptional physical and chemical properties-including low density, high strength, high-temperature resistance, superior chemical stability, fatigue resistance, and abrasion resistance-in addition to exhibiting excellent electrical and thermal conductivity, electromagnetic shielding capabilities, and a low coefficient of thermal expansion.
Cov yam ntxwv ntawm carbon fiber yog txiav txim los ntawm cov qauv ntawm nws precursor filaments raws li zoo raws li variations nyob rau hauv cov txheej txheem carbonization. Tshwj xeeb, kev xaiv ntawm cov khoom siv ua ntej thiab cov txheej txheem carbonization tom ntej ua rau muaj kev cuam tshuam ncaj qha rau qhov ua tau zoo ntawm cov pa roj carbon fiber ntau.
Ntau qhov kev ua haujlwm tam sim no tau tsom mus rau kev tsim khoom thiab kev ua kom zoo ntawm carbon fiber precursor filaments. Piv txwv li, ib qhov project uas muaj cov qhuav- ntub spinning ntawm PAN-raws li carbon fiber precursors aims kom ua tiav qhov nruam zus tau tej cov high-zoo, structurally uniform precursor filaments nrog ib tug tenacity tshaj 7.0 g/denier. Qhov no yog ua tiav los ntawm kev siv high-molecular- hnyav PAN polymers, ob-txoj kev ua cov kauj ruam, thiab qhuav-wt spinning technology, yog li tso lub hauv paus rau kev txhim kho siab - zog thiab siab -modulus carbon fibers.
Lwm qhov project tsom mus rau kev tsim kho tshiab ntawm cov cuab yeej ziab khaub ncaws rau carbon fiber precursor filaments, aiming los daws cov teeb meem cuam tshuam nrog cov pa drying systems-tshwj xeeb, lawv lub cev loj hneev taw thiab nyiam cov khoom siv pov tseg. Los ntawm kev sib koom ua ke lub tshuab ziab khaub ncaws uas nruab nrog txoj kev taug qab - thiab - cov menyuam cov tshuab, qhov kev tsim no ua kom cov pa roj carbon fiber ntau kom qhuav thaum tib lub sijhawm txo qhov ntim tag nrho ntawm lub tshuab ziab khaub ncaws thiab txo qhov chaw hauv pem teb kom tsawg, yog li ua rau kev txuag hluav taws xob.
Hauv cov ntsiab lus, carbon fiber precursor filaments thiab carbon fiber muaj qhov sib txawv ntawm lawv cov qauv tsim, cov yam ntxwv ntawm kev ua haujlwm, thiab daim ntawv thov domains; Tsis tas li ntawd, los ntawm kev nruam kev thev naus laus zis thiab kev ua kom zoo dua qub, nws muaj peev xwm txhim kho ob qho tib si kev tsim khoom thiab cov khoom zoo ntawm carbon fiber.
