Vim li cas lub qhov ncauj qhov ntswg tiv thaiv kev kis tus kab mob?
Dab tsi yog cov khoom siv?
Peb feem ntau hais tias qhov ncauj qhov ntswg yog ua los ntawm cov ntaub tsis-woven.Non-woven fabrics yog non-woven fabrics, as opposed to woven fabrics, uas yog ua los ntawm oriented los yog random fibers.
Thaum nws los txog rau lub qhov ncauj qhov ntswg, cov khoom siv raw yog Polypropylene (PP).Cov qhov ncauj qhov ntswg pov tseg yog feem ntau multilayered Polypropylene.Lub npe Askiv: Polypropylene, PP luv luv, yog xim tsis muaj xim, odorless, non-toxic, translucent khoom, uas yog ib tug polymer compound tsim los ntawm lub polymerization ntawm propylene.Polypropylene yog siv dav hauv kev tsim cov khoom siv fiber ntau xws li khaub ncaws thiab pam vov, cov cuab yeej kho mob, tsheb, tsheb kauj vab, cov khoom seem, cov kav dej thauj mus los thiab cov thawv ntim tshuaj, nrog rau hauv cov ntim khoom noj thiab tshuaj.
Cov ntaub tsis-woven uas tsim los ntawm cov khoom siv tshwj xeeb ntawm polypropylene non-woven npuag tuaj yeem siv rau cov khoom siv pov tseg, cov ntawv txheeb, qhov ncauj qhov ntswg, npog, cov ntaub so ntswg nqus dej thiab lwm yam khoom siv kho mob thiab kho mob.
Cov qhov ncauj qhov ntswg uas paub tias muaj kev tiv thaiv los ntawm tus kab mob coronavirus tshiab feem ntau suav nrog cov qhov ncauj qhov ntswg tiv thaiv pov tseg thiab N95 qhov ncauj qhov ntswg.Cov khoom siv lim tseem ceeb rau ob lub ntsej muag no yog qhov zoo heev, electrostatic lim hauv ob sab phlu - yaj-blown non-woven npuag.Melt blown non-woven npuag yog tsim los ntawm polypropylene, yog ib hom ultrafine electrostatic fiber ntau daim ntaub, tuaj yeem ntes plua plav.
Cov dej uas muaj tus kab mob ntsws ntsws nyob ze ntawm cov ntaub nplaum uas tsis yog-woven yuav electrostatic adsorption ntawm cov ntaub ntawv tsis-woven, tsis tuaj yeem hla, qhov no yog lub hauv paus ntsiab lus ntawm qhov no. cov kab mob cais cov khoom.Tom qab cov plua plav raug ntes los ntawm ultrafine electrostatic fiber ntau, nws yog qhov nyuaj heev rau kev sib cais los ntawm kev ntxuav, thiab ntxuav yuav rhuav tshem cov hmoov av electrostatic hmoov av, yog li daim npog qhov ncauj no tsuas siv tau ib zaug xwb.
Cov qhov ncauj qhov ntswg tiv thaiv pov tseg feem ntau yog ua los ntawm peb txheej ntawm cov ntaub tsis-woven.Cov khoom siv yog spunbonded non-woven npuag + yaj-blown non-woven npuag + spunbonded non-woven npuag.
Ob peb txheej ntawm lub qhov ncauj qhov ntswg tsis tau teev tseg nyob rau hauv lub teb chaws tus qauv GB / T 32610 rau lub qhov ncauj qhov ntswg.Rau qhov ncauj qhov ntswg kho mob, yuav tsum muaj tsawg kawg yog 3 txheej, uas yog hu ua SMS (2 txheej ntawm S thiab 1 txheej ntawm M).
Cov txheej txheem ntau tshaj plaws hauv Suav teb tam sim no yog 5 txheej, uas yog hu ua SMMMS (2 txheej ntawm S thiab 3 txheej ntawm M).Ntawm no tus S sawv cev rau Spunbond txheej (Spunbond), nws txoj kab uas hla fiber ntau yog tuab, txog 20 microns (μm), lub luag haujlwm tseem ceeb ntawm 2 txheej ntawm S Spunbond yog txhawb nqa tag nrho cov qauv tsis-woven npuag, thiab tsis muaj kev cuam tshuam ntau rau kev thaiv.Qhov tseem ceeb tshaj plaws hauv lub npog ntsej muag yog txheej txheej barrier lossis Meltblown txheej M (Meltblown).
Cov kab fiber ntau ntawm Meltblown txheej yog qhov zoo, txog 2 microns (μm), uas ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv kab mob thiab ntshav los ntawm kev nkag mus. rau hauv nws.Yog tias S spun-bonded txheej yog ntau dhau, lub npog ntsej muag nyuaj, thiab cov tshuaj tsuag txheej M ntau dhau, ua pa nyuaj, yog li los ntawm qhov yooj yim ntawm kev ua pa qhov ncauj qhov ntswg mus rau qhov kev ntsuam xyuas ntawm cov nyhuv ntawm cov qhov ncauj qhov ntswg cais, ua pa ntau. nyuaj, cov nyhuv thaiv yog zoo dua, tab sis, yog tias M txheej rau hauv zaj duab xis, yog qhov pib tsis ua pa dawb, tus kab mob raug txiav tawm, tab sis tib neeg ua tsis taus pa.N95 yog qhov tseeb 5-txheej lub npog ntsej muag ua los ntawm polypropylene nonwoven SMMMS uas lim txog li 95% ntawm cov khoom zoo.
Yog li ntawd, peb pom tias lub qhov ncauj qhov ntswg uas tuaj yeem cais tus kab mob tiag tiag yuav tsum tau ua los ntawm cov ntaub ntawv tshwj xeeb, thiab tsis yog txhua yam ntaub ntawv tsim nyog rau lub qhov ncauj qhov ntswg.
Thaum kawg, peb ORIENTMED ua tsaug vam tias txhua tus tuaj yeem ua rau koj tus kheej muaj kev nyab xeeb thiab noj qab haus huv.
Cov ntaub ntawv siv: https://jingyan.baidu.com/article/456c463bba74164b583144e9.html
Post lub sij hawm: Jul-02-2021