Meltblown daim ntaub tsuas yog siv polypropylene los ua cov khoom siv tseem ceeb, thiab txoj kab uas hla ntawm fiber ntau tuaj yeem ncav cuag 1 txog 5 microns. Nrog ntau cov voids, fluffy qauv, thiab zoo fold tsis kam, cov ultra- fibers zoo nrog cov qauv capillary tshwj xeeb nce tus naj npawb thiab thaj chaw ntawm fibers hauv ib cheeb tsam, yog li ua rau cov yaj- cov ntaub tshuab tshuab muaj qhov zoo filterability, shielding, tshav kub rwb thaiv tsev, thiab roj nqus. Nws tuaj yeem siv rau hauv thaj chaw huab cua, cov ntaub ntawv lim dej, cov ntaub ntawv rwb thaiv tsev, cov ntaub ntawv nqus, cov ntaub ntawv npog, cov ntaub ntawv thermal rwb thaiv tsev, roj-cov ntaub ntawv nqus thiab cov wipers.
Txhua leej txhua tus paub tias lub npog ntsej muag kho mob muaj cov txheej txheem yaj- cov ntaub tshuab, yog li cov ntaub ntawv dab tsi yog lub npog ntsej muag kho mob- cov ntaub tshuab tshuab ua los ntawm?
1. Cov ntaub meltblown siv rau qhov ncauj qhov ntswg yog ua los ntawm cov khoom siv polypropylene, thiab cov ntaub meltblown yog ua los ntawm lwm cov khoom siv polypropylene hu ua high-melt fat fiber. Nws yog ib qho ultra- cov ntaub ntawv zoo electrostatic fiber ntau, uas tuaj yeem siv hluav taws xob zoo li qub los nqus cov kab mob, Plua plav thiab cov tee dej kuj tseem ceeb vim li cas lub qhov ncauj qhov ntswg tuaj yeem lim cov kab mob.
2. Cov qhov ncauj qhov ntswg kho mob feem ntau txais yuav ntau- txheej txheej, hu ua SMS qauv: ib txheej ntawm spunbond txheej (S) ntawm ob sab. Qhov nruab nrab yog ib txheej los yog ntau txheej ntawm meltblown txheej (M). Cov khoom siv zoo tshaj plaws rau txheej meltblown yog daim ntaub meltblown. Nws yog cov khoom siv tseem ceeb rau kev lim dej lub ntsej muag, uas yog nruab nrab M txheej -melt- tshuab tsis yog- ntaub ntaub.
3. Qhov tseeb, tag nrho peb txheej tsis yog - cov ntaub npuag, thiab cov khoom siv raw yog polypropylene, tab sis cov txheej txheem tsim khoom tsis zoo ib yam. Ntawm lawv, fiber ntau txoj kab uas hla ntawm spun txheej ntawm sab hauv thiab sab nraud yog tuab, txog 20 microns; txoj kab uas hla ntawm yaj- tshuab fiber ntau hauv nruab nrab txheej tsuas yog 2 microns, thiab yog ua los ntawm cov khoom siv polypropylene hu ua siab -melt fat fiber. Nws tsis yooj yim thiab tsis tuaj yeem ntxuav nrog dej lossis txau nrog cawv. Txawm hais tias nws ntub thiab qhuav, nws yuav ua rau cov ntaub so ntswg puas thiab ua rau lub qhov khoob. Yog tias tus kab mob nkag mus rau hauv lub qhov khoob, lub npog ntsej muag yuav plam nws lub peev xwm tiv thaiv.
Nrog rau qhov xwm txheej loj ntawm kev sib kis tam sim no, lub qhov ncauj qhov ntswg tau dhau los ua ib yam khoom tseem ceeb hauv peb lub neej niaj hnub. Cia peb nkag siab tias vim li cas lub qhov ncauj qhov ntswg tuaj yeem tiv thaiv kab mob? Ua ntej tshaj plaws, qhov ntim ntawm tus kabmob coronavirus yog 80-120nm, vim tias nws feem ntau txuas nrog cov kua hauv lub cev thiab tawm mus, yog li nws feem ntau loj dua 0.1um (0.1 microns (um)=100 nanometers (nm)). Cov ntaub nplaum nplaum siv cov polypropylene ua cov khoom siv tseem ceeb thiab cov fiber ntau Cov kab uas hla tuaj yeem ncav cuag 0.5-10um, yog tias nws yog tus kab mob txuas rau lub cev, nws tuaj yeem lim tawm.
