Dab tsi yog yaj tshuab tsis woven ntaub

Dab tsi yog yaj tshuab tsis-woven ntaub

Melt blown non-woven fabric yog ib hom tshiab ntawm cov ntaub ntawv textile ua los ntawm cov ntaub ntawv polymer siab los ntawm cov txheej txheem xws li kev npaj cov khoom siv raw, kub melting, tshuaj tsuag molding, txias thiab solidification. Piv nrog rau cov tsoos rab koob punched non-woven fabrics, yaj tshuab tsis-woven fabrics muaj ib tug finer thiab ntau uniform fiber qauv, raws li zoo raws li tej yam breathability thiab dej kuj, ua rau lawv ib tug tseem ceeb txoj kev loj hlob kev taw qhia nyob rau hauv cov ntaub ntawv ntawm textile.

Cov yam ntxwv ntawm melt blown non-woven npuag

1. Kev ua tau zoo ntawm kev lim dej, uas tuaj yeem thaiv kev sib kis ntawm cov khoom tsis zoo xws li cov kab mob, kab mob, kab mob, thiab lwm yam;

2. Cov mos mos thiab xis nyob, nrog kev ua pa zoo, nyiam hnav, thiab tsis muaj kev fab tshuaj;

3. Hnav resistant, waterproof thiab roj resistant, nrog ib tug ntev kev pab cuam lub neej thiab zoo heev durability;

4. Yooj yim rau txheej txheem, muaj peev xwm txiav, xaws, kub nias, laminating thiab lwm yam kev kho mob raws li kev xav tau sib txawv.

Daim ntawv thov ntawm melt blown non-woven npuag

Melt blown non-woven npuag muaj ntau yam ntawm daim ntawv thov kev cia siab, thiab tau tshawb nrhiav hauv thaj chaw xws li kev kho mob, kev tu cev, thiab khoom vaj khoom tsev. Cov cheeb tsam tseem ceeb ntawm daim ntawv thov yog raws li nram no:

1. Kev kho mob thiab kev noj qab haus huv: Melt tshuab tsis-woven npuag yog siv dav hauv kev tsim cov khoom siv tiv thaiv xws li lub qhov ncauj qhov ntswg, cov ris tsho phais, thiab cov ris tsho cais tawm, uas tuaj yeem cais cov kab mob thiab cov kab mob, ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm kho mob thiab cov neeg mob.

2. Cov Khoom Siv Hauv Tsev: Cov ntaub nplaum uas tsis yog-woven yog siv los ua cov khoom siv niaj hnub xws li cov ntaub so ntub dej, cov tshuaj ntxuav lub ntsej muag, thiab cov ntaub ntxhua khaub ncaws uas muaj dej zoo, dej tsis kam, thiab tsis yooj yim rau cov plaub hau, txhim kho cov neeg siv kev paub.

3. Cov khoom siv lim: Melt blown non-woven npuag tuaj yeem ua rau cov ntaub ntawv lim rau huab cua, dej, thiab roj, uas tuaj yeem tshem tawm cov khoom hauv huab cua thiab txo cov pa phem. Nws kuj tseem siv tau rau hauv kev ua liaj ua teb xws li mechanical filtration thiab haus dej pom.

Melt blown non-woven npuag yog cov khoom siv rwb thaiv tsev zoo

Melt blown nonwoven npuag muaj thaj chaw loj tshwj xeeb thiab cov voids me me (pore loj ≤ 20) μ m) Cov porosity siab (≥ 75%) thiab lwm yam ntxwv. Yog hais tias qhov nruab nrab txoj kab uas hla yog 3 μ Qhov tshwj xeeb ntawm qhov chaw ntawm lub yaj cua tshuab tsis yog ntaub fibers, sib npaug rau qhov nruab nrab fiber ntau ntom ntawm 0.0638 dtex (nrog rau fiber ntau ntawm 0.058 denier), ncav cuag 14617 cm2 / g, thaum qhov nruab nrab txoj kab uas hla yog 15.3 μ Qhov tshwj xeeb qhov chaw ntawm fiber ntau yog qhov nruab nrab ntawm cov fibers. Qhov ceev ntawm 1.65 dtex (nrog fiber ntau ntawm 1.5), tsuas yog 2883 cm2 / g.

Vim lub thermal conductivity tsawg dua ntawm huab cua piv rau cov fibers zoo tib yam, huab cua nyob rau hauv lub qhov hws ntawm yaj cua tshuab nonwoven ntaub txo nws cov thermal conductivity. Cov hluav taws xob poob los ntawm cov khoom siv fiber ntau ntawm cov ntaub yaj uas tsis yog cov ntaub yog qhov tsawg, thiab cov huab cua zoo li qub nyob rau saum npoo ntawm countless ultrafine fibers tiv thaiv tshav kub los ntawm cov cua ntws, ua rau nws muaj kev rwb thaiv tsev zoo thiab ua kom sov.

Polypropylene (PP) fiber ntau yog ib hom khoom siv fiber ntau uas muaj cov thermal conductivity tsawg heev. Lub yaj cua sov rwb thaiv tsev floc ua los ntawm PP fiber ntau tom qab kev kho tshwj xeeb muaj kev ua haujlwm thermal rwb thaiv tsev 1.5 npaug ntawm qhov qis thiab 15 npaug ntawm cov paj rwb thermal rwb thaiv tsev zoo tib yam. Tshwj xeeb tshaj yog tsim nyog rau kev ua skiing khaub ncaws, khaub ncaws roob roob, txaj pw, hnab pw, thermal ris tsho hauv qab, hnab looj tes, khau, thiab lwm yam. Cov khoom uas muaj ntau yam ntawm 65-200g / m2 tau siv los ua cov khaub ncaws sov rau cov tub rog hauv cheeb tsam txias.

Yuav ua li cas txhawm rau txhim kho qhov pom kev ua haujlwm ntawm yaj tshuab tsis-woven npuag

Melt tshuab tsis-woven npuag, raws li cov khoom tseem ceeb ntawm lub qhov ncauj qhov ntswg kho mob, nws txoj kev pom kev ncaj qha cuam tshuam rau kev tiv thaiv lub ntsej muag. Muaj ntau ntau yam uas cuam tshuam rau kev pom kev ua haujlwm ntawm cov khoom tawg uas tsis yog-woven, xws li fiber ntau linear ntom, fiber ntau mesh qauv, thickness, thiab ntom. Raws li cov khoom siv lim cua rau lub qhov ncauj qhov ntswg, yog tias cov khoom siv nruj dhau, lub qhov hws me me dhau, thiab kev ua pa tsis ua pa siab dhau, tus neeg siv tsis tuaj yeem nqus pa kom zoo, thiab lub npog ntsej muag poob nws cov nqi siv. Qhov no xav kom cov ntaub ntawv lim tsis tsuas yog txhim kho lawv cov kev ua haujlwm pom, tab sis kuj txo qis lawv txoj kev ua pa tsis zoo, uas yog qhov tsis sib xws ntawm kev ua pa ua pa thiab pom kev ua haujlwm. Cov txheej txheem kho hluav taws xob electrostatic yog ib txoj hauv kev zoo los daws qhov tsis sib haum xeeb ntawm kev ua pa ua pa thiab pom kev ua haujlwm zoo.

Mechanical barrier

Qhov nruab nrab fiber ntau txoj kab uas hla ntawm polypropylene yaj tshuab yog 2-5 μ m. Particle loj dua 5 hauv huab cua μ Cov tee ntawm m tuaj yeem thaiv los ntawm daim ntaub meltblown; Thaum txoj kab uas hla ntawm cov hmoov av zoo yog tsawg dua 3 μ Ntawm m, vim yog qhov sib txawv ntawm cov fibers thiab interlayers nyob rau hauv cov ntaub yaj yaj, ib txheej lim fiber ntau nrog ntau txoj kab nkhaus yog tsim. Thaum cov khoom dhau los ntawm ntau hom kev nkhaus lossis txoj hauv kev, cov plua plav zoo yog adsorbed rau ntawm cov fibers los ntawm cov neeg kho tshuab lim van der Waals rog; Thaum cov particle loj thiab airflow tshaj tawm yog ob qho tib si loj, cov airflow mus txog cov khoom lim thiab ntws ncig vim muaj kev cuam tshuam, thaum cov khoom detach los ntawm streamline vim inertia thiab sib tsoo ncaj qha nrog cov fibers yuav tsum tau ntes; Thaum cov particle loj me me thiab tus nqi ntws tsawg, cov khoom sib txawv vim Brownian txav thiab sib tsoo nrog cov fibers yuav tsum tau ntes.

Electrostatic adsorption

Electrostatic adsorption yog hais txog kev ntes cov khoom los ntawm Coulomb quab yuam ntawm cov nqi fiber ntau (electret) thaum cov fibers ntawm cov khoom lim raug them. Thaum plua plav, kab mob, kab mob, thiab lwm yam khoom hla dhau los ntawm cov khoom siv lim dej, lub zog hluav taws xob tsis zoo tsuas yog nyiam cov khoom siv hluav taws xob xwb, tab sis kuj tseem ntes cov kab hluav taws xob tsis zoo los ntawm electrostatic induction nyhuv. Raws li qhov muaj peev xwm electrostatic nce, cov nyhuv electrostatic adsorption yuav muaj zog dua.