Kev ua tau zoo ntawm cov khoom siv yaj tshuab feem ntau yog hais txog lawv lub cev thiab lub zog, xws li lub zog, ua pa, txoj kab uas hla, fiber ntau, thiab lwm yam. Niaj hnub no, tus editor yuav luv luv txheeb xyuas cov laj thawj ntawm qhov tsis muaj qhov tawv nqaij ntawm cov ntaub meltblown. Yog tias koj piav tsis tau zoo, thov muab cov lus qhia thiab cov lus qhia ntxiv!
Melt tshuab qib polypropylene PP particle raw khoom
Lub melt index (MFI) ntawm polypropylene hais yog ncaj qha ntsig txog lub zog tensile thiab bursting lub zog ntawm yaj cua tshuab nonwoven fabrics.Qhov qis molecular hnyav ntawm cov polymer, qhov siab dua qhov melt flow index (MFI), thiab cov yaj viscosity qis dua, ua rau nws tsim nyog rau cov tsis muaj zog.
Stretching nyhuv nyob rau hauv yaj txau txheej txheem
Qhov siab dua qhov ntsuas qhov ntsuas, qhov qis zog ntawm cov yaj cua tshuab ib leeg thiab qhov qis zog ntawm lub vev xaib fiber ntau.
Hauv kev tsim khoom tiag tiag, yuav tsum siv polypropylene nrog siab MFI lossis MFI qis?
MFI me me: muaj peev xwm ua tau cov khoom tawg uas tsis muaj woven nrog lub zog siab.
MFI loj: cov zis siab, siv hluav taws xob tsawg. Yog li ntawd, tam sim no txoj kev yog siv cov ntaub ntawv MFI siab dua.
Melt tshuab qib polypropylene PP pellets: MFI> 1500
Qhov ntawd yog hais tias, yog tias koj pom tias cov ntaub meltblown uas tsim tawm yog "nkig dhau", ua ntej kos lub melt index ntawm cov ntaub ntawv raw. Txoj kev tshwj xeeb los saib qhov ntsuas no nyob ntawm qhov chaw koj yuav cov khoom siv raw los ntawm.
Melt tshuab txheej txheem
Yog vim li cas vim li cas lub airflow ntawm cov cua kub me me dhau:
Qhov nrawm ntawm huab cua kub nce;
Qhov zoo ntawm fiber ntau txoj kab uas hla;
Tus txheeb ze lub zog ntawm ib leeg fibers nce;
Kev sib raug zoo ntawm cov fibers hauv lub vev xaib nce, thiablub zog ntawm cov ntaub tsis-wovennce.
Qhov ceev ntawm cov cua kub khiav yog tswj ntawm 0.08-0.2. Cov huab cua ntws yuav tsum tsis tu ncua thiab tsis tuaj yeem hloov pauv sai. Yog tias tus nqi ntws siab dhau lawm, nws yuav tsim qhov tshwm sim "shot". Vim muaj ntau yam khoom siv roj hauv kev ua lag luam tam sim no thiab kev ua haujlwm tsis sib xws, cov teeb meem yuav tsum tau kho sib txawv thiab cov txheej txheem txheej txheej txheej yuav tsum tau hloov kho kom yooj yim.
Qhov kub ntawm yaj tshuab pwm lub taub hau
Qhov kub siab dua, qhov viscosity ntawm cov yaj yuav qis dua, thiab cov fibers zoo dua
Txawm li cas los xij, qhov viscosity tsawg ntawm cov yaj tuaj yeem ua rau ntau dhau ntawm cov yaj filaments, uas ua rau luv luv thiab ultrafine fibers uas tawg mus rau saum huab cua thiab tsis tuaj yeem sau tau. Yog li ntawd, cov viscosity ntawm cov polymer yaj nyob rau hauv cov txheej txheem yaj yog tsis tas yuav zoo dua thaum nws qis dua. Lub sijhawm zoo li no, kuj tseem yuav muaj qhov tshwm sim ntawm 'flying paj', qhov twg tsis muaj fibers uas tau sau los yog tawg mus rau saum huab cua.
Qhov kub ntawm lub taub hau pwm, flange, thiab lub luj tshib yuav tsum tau khaws cia ntawm ib theem kab, thiab peb qhov kub yuav tsum tsis txhob deviate ntau dhau.
Cov saum toj no yog kev tshuaj xyuas ntawm cov laj thawj yog vim li cas cov ntaub meltblown ua nkig thiab muaj lub zog tensile tsis txaus. Nws nyob ntawm lub zog ntawm cov ntaub lub brittleness, thiab cov txheej txheem ntau lawm yuav tsum tau kho kom tsim nyog. Kev tsim cov ntaub meltblown tsis yog qhov nyuaj, tab sis qhov nyuaj yog nyob rau hauv cov txheej txheem meltblown, uas yuav tsum tau muaj qee qhov kev paub ntau ntxiv los kho cov cuab yeej ua haujlwm. Rau cov phooj ywg uas tsis to taub tiag tiag, lawv tuaj yeem nrhiav lub tshuab txhim khu kev qha hloov tus tswv lossis hu rau tus kws kho kom sib tham thiab txhawb nqa ua ke!
Dongguan Liansheng Nonwoven Fabric Co., Ltd., cov chaw tsim khoom ntawm cov ntaub ntawv tsis-woven thiab non-woven fabrics, tsim nyog ntawm koj txoj kev ntseeg siab!
Post lub sij hawm: Dec-14-2024