Iyo N muN95 masks inomiririra isingamiri kumafuta, kureva kuti, isingamiri kumafuta; Huwandu hunomiririra kusefa kwakanaka kana kwakaedzwa ne 0.3 micron particles, uye 95 zvinoreva kuti inogona kusefa kanokwana 95% yezvimedu zvidiki senge hutachiona hwefuruwenza, huruva, mukume, haze, uye chiutsi. Zvakafanana nemasiki ekuvhiya ekuvhiya, chimiro chikuru cheN95 masks chine zvikamu zvitatu: nzvimbo yekunyorova-chiratidzo chepamusoro, yekusefa yepakati uye adsorption layer, uye yemukati ganda layer. Iyo mbishi inoshandiswa ndeye yakakwira molecular uremu polypropylene meltblown jira. Sezvo ese ari machira akanyunguduka, ndezvipi zvikonzero zvekuti kusefa kusaita chiyero?
Zvikonzero zveiyo substandard kusefa kunyatsoita kwemaski meltblown jira
Iko kusefa kuita kwejira risiri-yakarukwa risiri rakarukwa pacharo riri pasi pe70%. Izvo hazvina kukwana kuvimba chete neiyo mechanical chipingamupinyi mhedzisiro yematatu-dimensional faibha aggregates ye meltblown ultrafine fibers ine fibre yakanaka, madiki voids, uye yakakwirira porosity. Zvikasadaro, kungowedzera huremu uye ukobvu hwezvinhu zvichawedzera zvakanyanya kupikisa kwefiltration. Saka nyungudika inofefetera mafirita anowanzo wedzera machaji emagetsi kumucheka wakaputika kuburikidza nemaitiro e electrostatic polarization, uchishandisa nzira dzemagetsi kuvandudza kusefa, izvo zvinogona kusvika 99.9% kusvika 99.99%. Kureva, kusvika paN95 standard kana pamusoro.
Nheyo yekunyunguduka inoputika jira fiber filtration
Iyo yakanyungudutswa jira rinoshandiswa kuN95 akajairwa masks anonyanya kutora zvimedu kuburikidza neaviri maitiro emakanika barriers uye electrostatic adsorption. Iyo mechanical barrier effect yakanyatsoenderana nechimiro uye zvimiro zvezvinhu: kana jira rakanyunguduka richichajwa necorona ine voltage yemazana akati wandei kusvika kuzviuru zvakati volts, mafiber anopararira murutivi rwepores nekuda kwekudzorwa kwemagetsi, uye saizi iri pakati pemafiber yakakura kupfuura iyo yeguruva, nekudaro ichigadzira yakavhurika chimiro. Kana guruva richipfuura nepayakanyungudutswa yakafefeta sefa zvinhu, iyo electrostatic mhedzisiro haingo kwezva zvinobudirira guruva zvidimbu, asi zvakare inobata polarized neutral particles kuburikidza ne electrostatic induction effect. Kukwirisa kugona kwemagetsi kwechinhu, ndiko kukwirisa kuzara kwechaji yechinhu, iyo inotakura poindi yakawanda, uye kusimba kwemagetsi emagetsi. Corona discharge inogona kuvandudza zvakanyanya kusefa kwe polypropylene meltblown jira. Kuwedzera tourmaline zvimedu zvinogona zvinobudirira kuvandudza polarizability, kuwedzera kusefa kunyatsoita, kuderedza kuseta kuramba, kuwedzera fibre pamusoro pechaji density, uye kuwedzera charge yekuchengeta simba rewebhu fiber.
Kuwedzera 6% tourmaline kune electrode ine zvirinani zvakazara mhedzisiro. Yakawandisa polarizable zvinhu zvinogona chaizvo kuwedzera kufamba uye neutralization yevanochaja vatakuri. Electrified masterbatch inofanira kuva nenanometer kana micro nanometer scale size uye kufanana. Yakanaka polar masterbatch inogona kuvandudza mashandiro ekutenderera pasina kukanganisa muromo, kuwedzera kusefa kushanda zvakanaka, kuramba kushatiswa kwemagetsi, kuderedza kupikisa kwemhepo, kuwedzera kuwanda uye kudzika kwekuchaja kubatwa, kuwedzera mukana wekuwedzera kuvharirwa mufiber aggregates, uye kuchengetedza machaji akabatwa munzvimbo yakaderera simba, zvichiita kuti zviome kutiza kubva pamisungo inotakura kana kudzikisirwa, nokudaro kudzikisira.
Melt blown electrostatic polarization process
Maitiro ekunyunguduka akaputika electrostatic discharge anosanganisira kuwedzera inorganic zvinhu zvakaita setourmaline, silicon dioxide, uye zirconium phosphate kuPP polypropylene polymer pamberi. Zvino, usati watenderedza jira, iyo yakanyungudutswa inoputika inochajiswa neimwe kana kupfuura seti yekorona inobuda uchishandisa tsono yakaita seye electrode voltage ye35-50KV inogadzirwa nemagetsi ejenareta. Kana yakakwira voltage yaiswa, mhepo iri pazasi petsono tipi inoburitsa corona ionization, zvichikonzera kuparara kwenzvimbo. Vatakuri vemhosva vanoiswa pamusoro pemucheka wakanyunguduka wakaputika kuburikidza nekuita kwemunda wemagetsi, uye mamwe acho achabatwa nemusungo wezvimedu zveamai vakamira, zvichiita kuti jira rakanyungudutswa rive sefa zvinhu zve electrode. Iyo voltage panguva iyi corona process yakadzikira zvishoma kana ichienzaniswa nekuburitsa ine yakakwira voltage inotenderera 200Kv, zvichikonzera kushomeka kweozone. Mhedzisiro yekuchaja chinhambwe uye yekuchaja voltage inopesana. Sezvo chinhambwe chekuchaja chichiwedzera, huwandu hwekuchaja hwakabatwa nezvinhu hunodzikira.
Electrified meltblown fabric inodiwa
1. Imwe seti yezvishandiso zvinonyungudutswa
2. Electrified masterbatch
3. Maseti mana e-high-voltage electrostatic discharge devices
4. Kucheka michina
Mucheka wakanyunguduka unofanirwa kuchengetwa unyoro-uviri uye usapinda mvura
Pasi peyakajairika tembiricha uye humidity mamiriro, PP inonyungudika inoputika zvinhu zvinogoneka zvine yakanakisa yekuchaja kuchengetedza kugadzikana. Nekudaro, kana sampu iri munzvimbo ine hunyoro hwepamusoro, huwandu hukuru hwekurasikirwa kwechaji hunoitika nekuda kwekuripa mhedzisiro yemapoka epolar mumamorekuru emvura uye anisotropic particles mumhepo pamachaji pafibers. Chaji inodzikira nekuwedzera humidity uye inova nekukurumidza. Naizvozvo, panguva yekufambisa uye kuchengetedza, jira rakanyungudutswa rinofanirwa kuchengetedzwa mwando-uchapupu uye kudzivirira kusangana nenzvimbo dzakakwirira dzehunyoro. Kana isina kuchengetwa nemazvo, masks anogadzirwa acharamba akaoma kuzadzisa zviyero.
Dongguan Liansheng Non woven Technology Co., Ltd.yakavambwa muna Chivabvu 2020. Ibhizimusi rekugadzira jira rakakura risingarukwe rinobatanidza tsvakiridzo nekusimudzira, kugadzira, uye kutengesa. Inogona kuburitsa mavara akasiyana-siyana ePP spunbond machira asiri akarukwa ane hupamhi husingasviki 3.2 metres kubva pa9 gramu kusvika 300 magiramu.
Nguva yekutumira: Oct-27-2024