Kev sib xyaw thiab kev faib tawm ntawm hiav txwv Island fibers

Hiav txwv kob fiber yog hais txog kev tawg ntawm ib lub polymer mus rau lwm lub polymer, nrog rau cov theem dispersed nyob rau hauv ib tug "kob" xeev nyob rau hauv lub fiber cross-section, thaum niam txiv lub cev yog sib npaug rau "hiav txwv", thiab nws "kob" thiab "hiav txwv. "Cheebtsam yog txuas ntxiv mus ntxiv, ntom, thiab cov txheej txheem sib xyaw ua ke, nws muaj cov txheej txheem ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov khoom siv ntau lawm, tab sis los ntawm cov txheej txheem ntau lawm, tab sis los ntawm cov khoom siv ntau lawm." fiber ntau tuaj yeem tau txais.

Kev sib xyaw ntawm hiav txwv Island fibers

Hiav txwv kob hom fiber ntau yog cov khoom sib xyaw fiber ntau tau los ntawm kev sib txuas lossis sib xyaw ob lub thermodynamically incompatible polymers hauv ib qho kev faib ua feem. Ib qho kev tivthaiv yog ib theem dispersed (kob tivthaiv), thiab lwm yam yog ib ntus (hiav txwv tivthaiv). Ob qho tib si polymers ntawm hiav txwv thiab kob tsim ib tug loj tus naj npawb ntawm cov kob hiav txwv qauv, uas yog ces uniformly sau. Yog li ntawd, kev tsim ntawm ntau cov qauv zoo nkauj hiav txwv hiav txwv thiab lawv cov khoom sib xws yog tus yuam sij rau kev tsim cov khoom siv spinning. Cov kob tivthaiv yog muaj nyob rau hauv hiav txwv tivthaiv nyob rau hauv daim ntawv ntawm cov fibers zoo heev, nrog ib tug ntoo khaub lig-section faib nyob rau hauv ib tug kob duab, thiab nws ntev axis parallel mus rau lub composite fiber.

Dissolve lub marine theem ntawm cov kob fibers, tawm hauv ib pob ntawm ultrafine fibers nrog ib tug fineness ntawm {{0}}.01 mus rau 0.2 deniers. Yog tias cov kob theem raug tshem tawm, nws tuaj yeem ua rau hauv qhov ntxeem tau hollow fibers nrog cov qauv honeycomb.

Classification ntawm hiav txwv Island fibers

Muaj ob hom hiav txwv kob fibers: filament thiab staple. Filament yog ib qho kev faib tawm tsis tu ncua ntawm fibrils hauv matrix, feem ntau yog tsim los ntawm kev sib tw ncaj nraim thiab sib xyaw spinning txoj kev. Tom qab txiav cov filament, ntau qhov ntev ntawm staple fibers tuaj yeem tsim tau; Cov fibers luv luv yog cov fibers faib tsis tu ncua hauv matrix, tab sis lawv lub ntsiab axes coincide nrog cov fiber axes.

Raws li cov kev cai sib txawv ntawm cov Islands tuaj, lawv tuaj yeem muab faib ua cov Islands tuaj ruaj khov thiab cov Islands tuaj tsis muaj hnub nyoog. Kev faib tawm ntawm cov kob ruaj khov hom fiber ntau Islands tuaj yog sib xws thiab ruaj khov, thiab kev sib xyaw spinning feem ntau yog siv; Nyob rau hauv rooj plaub tom kawg, cov Islands tuaj tsis ruaj thiab tsis sib npaug, nrog qhov sib txawv loj hauv thickness.