Txheej txheem cej luam thiab ntau lawm txheej txheem ntawm melt blown ntaub
Melt blown nonwoven fabrics yog siv los ua cov ntaub ntawv sib xyaw, cov khoom siv lim dej, cov khoom siv rwb thaiv tsev, cov khoom siv huv, cov khoom siv roj, cov ntaub ntawv huv (cov ntaub so), roj teeb cais, thiab lwm yam. Lawv tau siv dav hauv kev kho mob thiab kev noj qab haus huv, kev lag luam tsheb. , lim cov ntaub ntawv, kev tiv thaiv ib puag ncig, thiab lwm yam.
(1) Kev tiv thaiv kev kho mob
Vim lub siab tsis kam mus rau cov dej zoo li qub, kev ua pa zoo, thiab cov nyhuv pom ntawm cov khoom sib xyaw ntawm cov khoom siv yaj thiab cov ntaub spunbond, tshwj xeeb tshaj yog cov khoom sib xyaw nrog daim nyias nyias, nws muaj kev cuam tshuam zoo, thiab kev pom zoo rau cov khoom tsis muaj roj tuaj yeem ncav cuag tshaj 99%.
Yog tias cov khaub ncaws tiv thaiv kev kho mob yog ua los ntawm cov ntaub ntawv sib xyaw nrog ntau qhov tshwj xeeb ntawm 60-100g/㎡, nws tuaj yeem thaiv cov kab mob, cov kab mob, thiab cov kua dej, thiab muaj kev tiv thaiv zoo rau cov kab mob xws li SARS (qhov loj 45nm) thiab HIV (Qhov loj me 90nm).
(2) Cov khoom siv rau huab cua pom
Cov khoom siv hluav taws xob sib xyaw ua ke, uas tau dhau los ntawm kev kho electrostatic polarization, muaj cov yam ntxwv ntawm kev ua haujlwm tsis zoo, cov plua plav loj loj, thiab kev ua haujlwm siab pom thaum siv rau huab cua pom. Ntawm tus nqi ntws ntawm 32L / min, qhov pom kev ua haujlwm zoo rau 0.3um particle loj tuaj yeem ncav cuag 99.9%, nrog qhov tsis kam ntawm tsuas yog 117.7Pa (12 hli dej kem). Nws yog dav siv rau kev kho cua huv hauv kev tsim hluav taws xob, khoom noj khoom haus, khoom siv, tshuaj lom neeg kev lag luam, tshav dav hlau, tsev so, thiab lwm qhov chaw.
Melt blown nonwoven fabrics yog siv los ua cov ntaub ntawv sib xyaw, cov ntaub ntawv lim, cov ntaub ntawv rwb thaiv tsev, cov khoom siv huv, cov khoom siv roj, cov ntaub ntawv huv (cov ntaub so), roj teeb cais, thiab lwm yam. Lawv tau siv dav hauv kev kho mob thiab kev noj qab haus huv, kev lag luam tsheb. , lim cov ntaub ntawv, kev tiv thaiv ib puag ncig, thiab lwm yam.
(3) Cov khoom siv rau kev lim dej
Melt blown nonwoven fabrics kuj tseem siv tau los ua cov ntaub ntawv ua kua, muaj peev xwm lim cov khoom nrog ib txoj kab uas hla ntawm 0.22-10um. Xws li cov kab mob, ntshav, thiab macromolecules. Feem ntau yog siv rau hauv kev pom cov photosensitive thiab corrosion-resistant cov neeg ua haujlwm hauv kev lag luam hluav taws xob, tshuaj, tshuaj lom neeg, thiab cov khoom siv hluavtaws plasma, dej haus, npias, thiab Tangjiang pom hauv kev lag luam zaub mov, precision pom cov tshuaj electroplating, dej purification pom hauv cov nroj tsuag dej. , kais dej purification filtration, hydrogen ntau lawm khoom rau electrolysis, thiab ib puag ncig cov dej khib nyiab.
(4) Cov khoom siv thermal rwb thaiv tsev
Melt blown nonwoven fabrics muaj cov yam ntxwv ntawm thaj chaw loj tshwj xeeb, cov voids me me, thiab cov void siab. Qhov yuav tsum tau muaj thaj tsam ntawm yaj cua tshuab nonwoven fibers nrog qhov nruab nrab txoj kab uas hla ntawm 3um (sib npaug rau qhov nruab nrab fiber ntau ntom ntawm 0.0638dtex (nrog rau fiber ntau ntawm 0.058 deniers) yog 14617cm2 / g, thaum thaj tsam tshwj xeeb ntawm spunbond nonwoven fibers nrog qhov nruab nrab txoj kab uas hla ntawm 15.3um (sib npaug rau qhov nruab nrab fiber ntau ntom ntawm 1.65dtex (nrog fiber ntau ntawm 1.5 deniers) tsuas yog 2883cm2 / 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 kev sib pauv cua sov los ntawm cov cua ntws, ua rau nws muaj kev rwb thaiv tsev zoo thiab rwb thaiv tsev.
Polypropylene (PP) fiber ntau yog ntau yam nrog tsawg tshaj thermal conductivity coefficient ntawm cov ntaub ntawv fiber ntau uas twb muaj lawm. Tom qab kev kho mob tshwj xeeb (xws li ntxiv 35% siab tshwj xeeb (coarse denier) PET peb-dimensional curled fiber), cov yaj cua sov rwb thaiv tsev floc ua los ntawm PP fiber muaj thermal rwb thaiv tsev kev ua tau zoo 1.5 npaug ntawm qhov qis thiab 15 npaug ntawm cov thermal rwb thaiv tsev zoo tib yam. rwb thaiv tsev paj rwb. Tshwj xeeb tshaj yog tsim rau ua cov khaub ncaws caij ski, khaub ncaws 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. .
