Ncibilikisa inqubo yendwangu engalukiwe ephephethwayo nezici

Inqubo yokuncibilika kwendwangu engalukiwe ephephethekayo

Inqubo yokuncibilika kwendwangu engalukiwe ephephethekayo: ukondla kwe-polymer - i-melt extrusion - ukwakheka kwefayibha - ukupholisa i-fiber - ukwakheka kwewebhu - ukuqinisa kube yindwangu.

Ubuchwepheshe bokuncibilika kwezingxenye ezimbili

Kusukela ekuqaleni kwekhulu lama-21, ukuthuthukiswa kobuchwepheshe be-melt blown nonwoven kwenze intuthuko ngokushesha emhlabeni jikelele.

Izinkampani zase-Hills kanye ne-Nordson e-United States zithuthukise ngempumelelo ubuchwepheshe be-melt blown yezingxenye ezimbili ngaphambili, okuhlanganisa i-skin core, i-parallel, i-triangular nezinye izinhlobo. Ukucoleka kwefayibha kuvamise ukuba kusondele ku-2 µ, futhi inani lezimbobo engxenyeni yefilamenti ephehlwayo lingafinyelela izimbobo eziyi-100 iyintshi ngayinye, ngesilinganiso sokukhipha esingu-0.5g/min imbobo ngayinye.

Uhlobo lomgogodla wesikhumba:

Ingenza izindwangu ezingalukiwe zizizwe zithambile futhi zingenziwa zibe yimikhiqizo egxile, eccentric, kanye nengajwayelekile. Ngokuvamile, izinto ezingabizi zisetshenziswa njengengqikithi, kuyilapho ama-polymer abizayo anezakhiwo ezikhethekile noma ezidingekayo asetshenziswa njengesendlalelo sangaphandle, njenge-polypropylene yomgogodla kanye neyiloni yongqimba lwangaphandle, okwenza imicu ibe yi-hygroscopic; Umongo wenziwe nge-polypropylene, futhi ungqimba lwangaphandle lwenziwe nge-polyethylene encibilika ephansi noma i-polypropylene eguquliwe, i-polyester eguquliwe, njll. engasetshenziswa ukubopha. Ngemicu ye-carbon black conductive, i-conductor core isongwe ngaphakathi.

Uhlobo oluhambisanayo:

Ingenza izindwangu ezingezona ezilukiwe zibe nokunwebeka okuhle, ngokuvamile ezenziwe ngama-polymer amabili ahlukene noma i-polymer efanayo ene-viscosity ehlukene ukuze yakhe imicu ehambisanayo enezingxenye ezimbili. Ngokusebenzisa izakhiwo ezihlukene zokuncipha okushisayo kwama-polymer ahlukene, kungenziwa imicu egobile egobile. Isibonelo, i-3M Company isungule indwangu engalukiwe eyenziwe nge-PET/PP ephephetha i-PET/PP imicu enezingxenye ezimbili, okuthi, ngenxa yokuncipha okuhlukile, yakha i-curl evunguzayo futhi inikeze indwangu engalukiwe ukunwebeka okuhle kakhulu.

Uhlobo lwetheminali:

Lolu olunye uhlobo lwenhlanganisela ye-polymer esetshenziswa ezinhlotsheni zamaqabunga amathathu, isiphambano, kanye netheminali. Lapho wenza ama-anti-static, umswakama conductive, kanye ne-conductive fibers, ama-polymers conductive angaba yinhlanganisela phezulu, angakwazi ukuqhuba umswakama kuphela, kodwa futhi aqhube ugesi, i-anti-static, futhi alondoloze inani le-polymer conductive esetshenzisiwe.

Uhlobo lwe-Micro Dan:

I-petal ewolintshi emise okwe-orenji, izingxenye zokuxebuka ezimise okwe-strip, noma izakhi ezimise okwesiqhingi zingasetshenziswa. Kusetshenziswa ama-polymer amabili angasebenzisani ukucwecwa nokwenza ama-web we-fiber ultrafine, ngisho nama-nanofiber webs. Isibonelo, u-Kimberly Clark wenza uhlobo lokuxebuka lwe-fiber enezingxenye ezimbili, olusebenzisa izici zemicu yezingxenye ezimbili ezenziwe ngama-polymer amabili angahambisani angaxetshulwa ngokuphelele esikhathini esingaphansi kwesekhondi emanzini ashisayo ukuze enze ama-fiber webs e-ultrafine. Ngohlobo lwesiqhingi, ulwandle ludinga ukuncibilika ukuze kutholwe inethiwekhi ye-fiber yesiqhingi esihle.

Uhlobo lweHybrid:

Iwuhlu lwe-fiber olwenziwa ngokuxuba izinto ezihlukene, imibala, imicu, izimo ezihlukene, kanye nemicu ehambisana nenkaba yesikhumba, enakho kokubili okuphothiwe kanye nezingxenye ezimbili, ukunikeza imicu izici ezidingekayo. Uma kuqhathaniswa nemikhiqizo ye-fiber encibilikayo evamile encibilikayo, lolu hlobo lwendwangu encibilikayo ephehlwa izingxenye ezimbili ze-fiber nonwoven noma indwangu exutshwe ne-fiber nonwoven ingathuthukisa ukusebenza kokuhlunga kwendawo yokuhlunga, futhi yenze isihlungi esiphakathi sibe ne-anti-static, conductive, umswakama, kanye nezakhiwo zokuvimbela ezithuthukisiwe; Noma thuthukisa ukunamathela, ukuphaphatheka, kanye nokuphefumula kwe-fiber web.

Izingxenye ezimbili ze-meltblown fibers zingangezelela ukushiyeka kwezakhiwo ze-polymer eyodwa. Isibonelo, i-polypropylene ingabizi kakhulu, kodwa uma isetshenziswa ezintweni zokwelapha nezempilo, ayimelani nokuchayeka emisebeni. Ngakho-ke, i-polypropylene ingasetshenziswa njengengqikithi, futhi i-polymer ephikisana nemisebe efanelekile ingakhethwa ungqimba lwangaphandle ukuze ilugoqe, ngaleyo ndlela ixazulule inkinga yokumelana nemisebe. Lokhu kungenza umkhiqizo ungabizi kakhulu ngenkathi uhlangabezana nezidingo zokusebenza, njengokushintshisana kokushisa nomswakama osetshenziswa ohlelweni lokuphefumula emkhakheni wezokwelapha, ongahlinzeka ngokushisa kwemvelo okufanelekile kanye nomswakama. Ayisindi, iyalahlwa noma kulula ukuyibulala amagciwane, ayibizi, futhi ingasebenza njengesihlungi esengeziwe sokususa ukungcola. Ingakhiwa amawebhu amabili e-fiber exutshwe ngokulinganayo enezingxenye ezimbili. Ukwamukela uhlobo lwe-skin core uhlobo lwe-fiber enezingxenye ezimbili, umgogodla wenziwe nge-polypropylene futhi ungqimba lwesikhumba lwenziwe inayiloni. Imicu emibili yezingxenye ingase futhi isebenzise izigaba eziphambanayo ezingajwayelekile, njengama-trilobite nama-multilobes, ukuze kwandiswe indawo yazo. Ngesikhathi esifanayo, ama-polymers angathuthukisa ukusebenza kokuhlunga angasetshenziswa ebusweni bawo noma ithiphu le-blade. I-fiber mesh enezingxenye ezimbili ye-olefin noma indlela yokuncibilika kwe-polyester ingenziwa ibe isihlungi esiyicylindrical liquid kanye negesi. I-Melt fiber mesh enezingxenye ezimbili ezincibilikayo ingase isetshenziselwe amathiphu okuhlunga ugwayi; Ukusebenzisa umthelela wokumunca oyinhloko ukuze udale ama-cores abamba uyinki aphezulu; Ama-core suction rods okugcina uketshezi kanye nokufakwa.

Ukuthuthukiswa kobuchwepheshe be-melt blown nonwoven - ama-nanofiber aqhunyiswayo ancibilika

Esikhathini esedlule, ukuthuthukiswa kwemicu encibilikayo kwakusekelwe kubuchwepheshe obunelungelo lobunikazi be-Exxon, kodwa eminyakeni yamuva, izinkampani eziningana zamazwe ngamazwe ziye zagqekeza ubuchwepheshe be-Exxon ukuze zenze imicu ye-nanoscale emihle.

I-Hills Company yenze ucwaningo olunzulu nge-nano meltblown fibers futhi kuthiwa isifinyelele esigabeni sokusungulwa kwezimboni. Ezinye izinkampani ezifana ne-Non woven Technologies (NTI) nazo zenze izinqubo kanye nobuchwepheshe bokukhiqiza imicu ye-nano meltblown futhi zithole amalungelo obunikazi.

Ukuze ujikeleze ama-nanofiber, izimbobo ze-nozzle zicoleke kakhulu kunalezo ezisemishinini encibilikisiwe evamile. I-NTI ingasebenzisa imibhobho emincane njengamamilimitha angu-0.0635 (ama-microns angu-63.5) noma amayintshi angu-0.0025, futhi isakhiwo se-modular se-spinneret singahlanganiswa ukwenza ububanzi obuphelele obungaphezu kwamamitha angu-3. Ububanzi bemicu encibilikisiwe ephothiwe ngale ndlela cishe bungama-nanometer angu-500. I-thinnest single fiber diameter ingafinyelela ku-200 nanometers.

Imishini encibilikayo yokuphotha ama-nanofibers inezimbobo ezincane zokufutha, futhi uma kungekho zinyathelo ezithathwayo, isivuno nakanjani sizoncipha kakhulu. Ngakho-ke, i-NTI inyuse isibalo semigodi yokufutha, ipuleti ngalinye lesifutho linemigqa emi-3 noma ngaphezulu yezimbobo zokufutha. Ukuhlanganisa izingxenye eziningi zamayunithi (kuye ngokuthi ububanzi) ndawonye kungakhuphula kakhulu isivuno ngesikhathi sokuphotha. Isimo sangempela siwukuthi uma usebenzisa izimbobo ze-micron ezingu-63.5, inani lemigodi ngemitha ngayinye ye-spinneret yomugqa owodwa ngu-2880. Uma imigqa emithathu isetshenziswa, inani lemigodi ngemitha ngalinye le-spinneret lingafinyelela ku-8640, elilingana nokukhiqizwa kwemicu evamile encibilikayo.

Ngenxa yezindleko eziphakeme kanye nokuthinteka ekuqhekekeni (ukuqhekeka ngaphansi kwengcindezi ephezulu) yama-spinnerets amancane anezimbobo eziphakeme kakhulu, izinkampani ezihlukahlukene zenze ubuchwepheshe obusha bokubopha ukuze kuthuthukiswe ukuqina kwama-spinnerets nokuvimbela ukuvuza ngaphansi kwengcindezi ephezulu.

Njengamanje, ama-nano meltblown fibers angasetshenziswa njengemidiya yokuhlunga, engathuthukisa kakhulu ukusebenza kahle kokuhlunga. Kukhona futhi idatha ebonisa ukuthi ngenxa yezintambo ezinhle kakhulu ezindwangu ze-nanoscale meltblown nonwoven, izindwangu ezincibilikayo ezilula nezisindayo zingasetshenziswa ngokuhambisana nezinhlanganisela ze-spunbond, ezisengakwazi ukumelana nokucindezela okufanayo kwekhanda lamanzi. Imikhiqizo ye-SMS eyenziwe ngayo inganciphisa ingxenye yemicu encibilikayo.

I-Dongguan Liansheng Non woven Technology Co., Ltd.yasungulwa ngoMeyi 2020. Kuyibhizinisi elikhulu lokukhiqiza indwangu engalukiwe ehlanganisa ucwaningo nentuthuko, ukukhiqiza, nokudayiswa. Ingakwazi ukukhiqiza imibala ehlukahlukene ye-PP spunbond izindwangu ezingalukiwe ezinobubanzi obungaphansi kwamamitha angu-3.2 ukusuka ku-9 amagremu kuya ku-300 amagremu.