Cov ntaub yaj tawmyog cov khoom siv lim tseem ceeb ntawm lub ntsej muag, uas feem ntau yog txiav txim siab los ntawm cov txheej txheem lim ntawm cov khoom siv lim yaj, feem ntau muab faib ua cov khoom siv thaiv tshuab, electrostatic adsorption thiab electret kho.
1. Kev thaiv teeb meem
Cov teeb meem kho tshuab tuaj yeem ua raws li nram no:
A. Cov tee dej uas muaj qhov loj tshaj 5um hauv huab cua tuaj yeem raug thaiv los ntawm cov khoom siv lim dej.
B. Thaum lub plua plav txoj kab uas hla tsawg dua 3um, cov plua plav raug cuam tshuam los ntawm cov txheej txheem fiber ntau hauv cov khoom siv lim lub ntsej muag.
C. Thaum qhov loj ntawm cov khoom me me thiab qhov ceev ntawm huab cua loj heev, cov khoom me me raug ntes vim yog kev sib tsoo ntawm inertia thiab fiber; thaum qhov ceev ntawm cov khoom me me thiab qis, cov khoom me me raug ntes vim yog Brownian kev txav uas cuam tshuam rau cov fiber.
2. Kev nqus dej electrostatic
Feem ntau nyob rau hauv cov txheej txheem ntau lawm ntawm cov ntaub tsuag molten yuav yog polar kho, yog li ntawd cov ntaub tsis-woven nrog ntau electrostatic, nrog electrostatic adsorption.Electrostatic adsorption hais txog kev ntes cov kab mob plua plav thiab cov kab mob los ntawm lub zog coulomb ntawm cov fiber them thaum lub fiber ntawm cov khoom siv lim dej raug them.
Muaj ob txoj hauv kev los txhim kho lub peev xwm khaws cia ntawm cov khoom siv electret:
A. Los ntawm kev txhim kho qhov crystallinity thiab kev hloov pauv ntawm cov khoom siv, cov qauv ntawm cov khoom siv yuav hloov pauv thiab yuav tsim ib txoj kab ntev thiab nyias nyias kom tiv thaiv kev hloov pauv ntawm tus nqi.
B. Tsim cov ntxiab them hluav taws xob los ntes cov nqi hluav taws xob los ntawm kev ntxiv cov khoom ntxiv uas muaj cov yam ntxwv khaws cia cov nqi hluav taws xob.
3. Kev ua tiav ntawm tus ncej sawv ntsug
Tus yuam sij rau kev txhim kho qhov ua tau zoo ntawm cov ntaub npog qhov ncauj yog nyob rau hauv qhov khaws cia electrostatic ntawm cov ntaub yaj uas tsis yog woven. Ntawm qhov tam sim no ntws ntawm cov ntaub npog qhov ncauj, qhov electrostatic attenuation tsis txaus (piv txwv li, ib nrab lub hlis tom qab lawv tawm hauv lub Hoobkas). Txawm li cas los xij, cov ntaub npog qhov ncauj kho mob ib txwm siv tau rau 6 lub hlis, thaum qee cov ntaub npog qhov ncauj Nyiv siv tau rau 3 xyoos.
Lub electret ntawm cov ntaub tsis yog woven uas yaj tau yooj yim heev rau cov av noo ib puag ncig. Ib tus neeg siv khoom tau ua ib qho kev sim. Tom qab khaws cia rau 7 hnub nyob rau hauv qhov kub thiab txias ib txwm muaj thiab av noo siab (av noo ntau dua 95%), qhov muaj peev xwm ntawm qhov chaw ntawm cov qauv them corona zoo thiab tsis zoo tau poob qis mus rau 28% thiab 36% ntawm tus nqi pib. Lub sijhawm no vim yog cov ntaub tsis-woven yaj-blown muaj qhov qhib qauv, thaj chaw tshwj xeeb yog loj dua, ntau qhov kev sib cuag nrog ib puag ncig, ua rau cov dej noo hauv ib puag ncig, cov pa roj corrosive, cov khoom me me heterosexual, xws li rhiab heev, tib lub sijhawm, lub kaw lus them corona tsuas yog tsim cov teeb tsa qis tuaj yeem them ionic, them nqi txhaj tshuaj hauv cov txheej txheem ntawm kev them feem ntau ntawm cov txheej ze ntawm qhov chaw tau tso rau ntawm cov ntaub nto fibers. Thaum cov qauv khaws cia lossis ua haujlwm hauv ib puag ncig av noo siab, ntau qhov poob nqi yog tshwm sim vim yog qhov cuam tshuam ntawm cov pab pawg polar hauv cov dej molecules thiab heteroions hauv huab cua rau qhov siab concentration ntawm qhov chaw them nqi ntawm cov fiber. Yog li ntawd, qhov chaw av noo siab yuav tsum tau zam hauv cov txheej txheem ntawm kev yaj thiab txau cov ntaub thauj khoom thiab khaws cia.
Qhov saum toj no yog kev tshuaj xyuas ntawm peb qho laj thawj rau qhovyaj tshuab nonwoven ntaubkom ntseeg tau tias qhov kev lim dej zoo. Kuv vam tias koj yuav nyiam nws. Peb yog ib tus kws tshaj lijchaw tsim khoom yaj blown nonwovenYog tias koj muaj tej yam yuav tsum tau yuav khoom, thov tsis txhob yig tiv tauj peb tam sim ntawd. Peb yuav xa cov qauv rau koj dawb xwb.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-07-2020