Sungunulani kuwomba sanali nsalu nsalu ndondomeko ndi makhalidwe

Njira yosungunula yowombedwa yopanda nsalu

Njira yosungunula nsalu yopanda nsalu: kudyetsa polima - kusungunula - kusungunula - kupanga CHIKWANGWANI - kuziziritsa kwa ulusi - kupanga ukonde - kulimbikitsa kukhala nsalu.

Zigawo ziwiri zosungunula zida zamakono

Kuyambira kuchiyambi kwa zaka za zana la 21, chitukuko chaukadaulo wa melt blown nonwoven chapita patsogolo mwachangu padziko lonse lapansi.

Makampani a Hills ndi Nordson ku United States adapanga kale zida ziwiri zosungunula zosungunuka, kuphatikiza pakhungu, parallel, triangular ndi mitundu ina. Fineness ya ulusi nthawi zambiri imakhala pafupi ndi 2 µ, ndipo kuchuluka kwa mabowo mu gawo losungunuka la filament kumatha kufika mabowo 100 pa inchi, ndi kutulutsa kwa 0.5g/mphindi pa dzenje.

Mtundu wa Chikopa:

Zitha kupanga nsalu zosalukidwa kukhala zofewa ndipo zimatha kupangidwa kukhala zokhazikika, zowoneka bwino, komanso zosasinthika. Nthawi zambiri, zinthu zotsika mtengo zimagwiritsidwa ntchito ngati pachimake, pomwe ma polima okwera mtengo okhala ndi zinthu zapadera kapena zofunikira amagwiritsidwa ntchito ngati gawo lakunja, monga polypropylene pachimake ndi nayiloni pagawo lakunja, kupanga ulusi wa hygroscopic; Pakatikati pake amapangidwa ndi polypropylene, ndipo wosanjikiza wakunja amapangidwa ndi otsika osungunuka polyethylene kapena kusinthidwa polypropylene, kusinthidwa polyester, etc. kuti angagwiritsidwe ntchito kugwirizana. Kwa ulusi wa carbon black conductive, conductive core imakutidwa mkati.

Mtundu wofananira:

Zitha kupanga nsalu zosalukidwa kukhala zotanuka bwino, nthawi zambiri zopangidwa ndi ma polima awiri osiyana kapena polima yemweyo wokhala ndi ma viscosity osiyanasiyana kuti apange ulusi wa zigawo ziwiri zofananira. Pogwiritsa ntchito kutsika kwamafuta osiyanasiyana a ma polima osiyanasiyana, ulusi wopindika wozungulira ukhoza kupangidwa. Mwachitsanzo, 3M Company yapanga nsalu yopanda nsalu yopangidwa ndi PET / PP yowombedwa ndi ulusi wa zigawo ziwiri, zomwe, chifukwa cha kuchepa kosiyana, zimapanga zopiringa zozungulira ndipo zimapereka nsalu yosalukidwa bwino kwambiri.

Mtundu wokwezera:

Uwu ndi mtundu wina wamagulu a polima omwe amagwiritsidwa ntchito pamitundu itatu yamasamba, mtanda, ndi ma terminal. Popanga odana ndi malo amodzi, chinyezi conductive, ndi ulusi conductive, ma polima conductive angakhale gulu pamwamba, amene sangakhoze kokha kuchititsa chinyezi, komanso kuchititsa magetsi, odana ndi malo amodzi, ndi kupulumutsa kuchuluka kwa conductive polima ntchito.

Mtundu wa Micro Dan:

Ma petals a lalanje, oboola ngati mizere, kapena zigawo zooneka ngati chilumba zingagwiritsidwe ntchito. Kugwiritsa ntchito ma polima awiri osagwirizana kuti asambe ndikupanga ma ultrafine fiber webs, ngakhale nanofiber webs. Mwachitsanzo, Kimberly Clark anapanga mtundu wa peeling wa zigawo ziwiri za ulusi, zomwe zimagwiritsa ntchito mawonekedwe a ulusi wa zigawo ziwiri zopangidwa kuchokera ku ma polima awiri osagwirizana omwe amatha kusendaturatu pasanathe sekondi imodzi m'madzi otentha kuti apange ultrafine fiber webs. Kwa mtundu wa chilumba, nyanjayo imayenera kusungunuka kuti ipeze ukonde wabwino wa chilumba.

Mtundu wosakanizidwa:

Ndi ulusi wa ulusi womwe umapangidwa posakaniza zinthu zosiyanasiyana, mitundu, ulusi, mawonekedwe ophatikizika, komanso ulusi wofanana ndi pakatikati pakhungu, wokhala ndi ulusi wopota ndi zigawo ziwiri, kuti ulusiwo ukhale wofunikira. Poyerekeza ndi ambiri Sungunulani kuwombedwa ndi CHIKWANGWANI mankhwala, mtundu uwu wa Sungunulani kuwombeza awiri chigawo cha CHIKWANGWANI nonwoven nsalu kapena wosakanizika CHIKWANGWANI nonwoven nsalu akhoza kupititsa patsogolo kusefera sing'anga zosefera, ndi kupanga fyuluta sing'anga kukhala odana ndi malo amodzi, conductive, chinyezi kuyamwa, ndi kumatheka katundu chotchinga; Kapena sinthani kumamatira, kusinthasintha, komanso kupuma kwa ukonde wa fiber.

Zigawo ziwiri za meltblown fiber zimatha kuwonjezera zofooka zamtundu umodzi wa polima. Mwachitsanzo, polypropylene ndi yotsika mtengo, koma ikagwiritsidwa ntchito muzachipatala ndi zachipatala, imakhala yosagonjetsedwa ndi ma radiation. Chifukwa chake, polypropylene ingagwiritsidwe ntchito ngati pachimake, ndipo polima yoyenera yolimbana ndi ma radiation imatha kusankhidwa pansanjika yakunja kuti ikulungire mozungulira, ndikuthetsa vuto la kukana kwa radiation. Izi zingapangitse kuti mankhwalawa akhale okwera mtengo pamene akukumana ndi zofunikira zogwirira ntchito, monga kutentha ndi kutentha kwa kutentha komwe kumagwiritsidwa ntchito mu kupuma kwachipatala, komwe kungapereke kutentha kwachilengedwe ndi chinyezi choyenera. Ndi yopepuka, yotayika kapena yosavuta kupha tizilombo, yotsika mtengo, ndipo imathanso kukhala ngati fyuluta yowonjezerapo kuchotsa zowononga. Itha kupangidwa ndi maukonde awiri osakanikirana omwe ali ndi magawo awiri osungunuka. Kutengera mtundu wapakatikati pakhungu ulusi wa zigawo ziwiri, pachimake ndi polypropylene ndipo wosanjikiza wa khungu amapangidwa ndi nayiloni. Ulusi wamagulu awiri amathanso kukhala ndi magawo osakanikirana, monga ma trilobites ndi ma multilobes, kuti awonjezere malo awo. Nthawi yomweyo, ma polima omwe amatha kusintha kusefera amatha kugwiritsidwa ntchito pamtunda wawo kapena nsonga ya tsamba. Ma mesh a zigawo ziwiri za olefin kapena polyester melt blown njira amatha kupangidwa kukhala ma cylindrical fluid ndi zosefera mpweya. Ma mesh osungunuka a zigawo ziwiri atha kugwiritsidwanso ntchito ngati nsonga zosefera ndudu; Kugwiritsa ntchito mphamvu yoyamwa yapakatikati kuti mupange ma cores apamwamba kwambiri otengera inki; Zoyambira zoyamwa zosungirako madzimadzi komanso kulowetsedwa.

Kupititsa patsogolo ukadaulo wa melt blown nonwoven - ma nanofiber osungunuka

M'mbuyomu, kupanga ulusi wa meltblown kunali kozikidwa paukadaulo wa Exxon, koma m'zaka zaposachedwa, makampani angapo apadziko lonse lapansi aphwanya ukadaulo wa Exxon kuti apange ulusi wabwino kwambiri wa nanoscale.

Hills Company yachita kafukufuku wambiri pa nano meltblown fibers ndipo akuti yafika pachimake cha mafakitale. Makampani ena monga Non woven Technologies (NTI) apanganso njira ndi ukadaulo wopangira ulusi wa nano meltblown ndipo apeza ma patent.

Kuti muzitha kupota ma nanofibers, mabowo a nozzle ndi abwino kwambiri kuposa omwe ali pazida wamba zowomberedwa. NTI angagwiritse ntchito nozzles ang'onoang'ono monga 0.0635 millimeters (63.5 microns) kapena 0.0025 mainchesi, ndi yodziyimira payokha dongosolo spinneret akhoza pamodzi kupanga okwana m'lifupi mwake oposa 3 mamita. M'mimba mwake mwa ulusi wowombedwa wosungunuka womwe umazunguliridwa motere ndi pafupifupi ma nanometer 500. The thinnest single fiber diameter imatha kufika 200 nanometers.

Zida zosungunula zopota za nanofiber zimakhala ndi mabowo ang'onoang'ono opopera, ndipo ngati palibe njira zomwe zingatsatidwe, zokolola zidzachepa kwambiri. Choncho, NTI yachulukitsa mabowo opopera, mbale iliyonse yopopera imakhala ndi mizere itatu kapena kupitilira apo ya mabowo opopera. Kuphatikiza zigawo zambiri zamagulu (malingana ndi m'lifupi) palimodzi kungapangitse zokolola zambiri panthawi yozungulira. Zomwe zikuchitika ndikuti mukamagwiritsa ntchito mabowo a 63.5 micron, chiwerengero cha mabowo pa mita imodzi ya mzere umodzi spinneret ndi 2880. Ngati mizere itatu ikugwiritsidwa ntchito, chiwerengero cha mabowo pa mita imodzi ya spinneret chikhoza kufika ku 8640, chomwe chiri chofanana ndi kupanga ulusi wamba wosungunuka.

Chifukwa cha kukwera mtengo komanso chiwopsezo cha kusweka (kusweka pansi pa kupanikizika kwakukulu) kwa ma spinnerets opyapyala okhala ndi mabowo ochulukirapo, makampani osiyanasiyana apanga matekinoloje atsopano olumikizirana kuti apititse patsogolo kukhazikika kwa ma spinnerets ndikuletsa kutayikira pansi pamavuto akulu.

Pakadali pano, ulusi wa nano meltblown ukhoza kugwiritsidwa ntchito ngati zosefera, zomwe zitha kupititsa patsogolo kusefera bwino. Palinso deta yosonyeza kuti chifukwa cha ulusi wabwino kwambiri mu nsalu za nanoscale meltblown nonwoven, nsalu zopepuka komanso zolemera kwambiri za meltblown zitha kugwiritsidwa ntchito limodzi ndi ma spunbond composites, omwe amathabe kupirira kuthamanga kwapamutu kwamadzi komweko. Ma SMS opangidwa kuchokera kwa iwo amatha kuchepetsa kuchuluka kwa ulusi wosungunuka.

Dongguan Liansheng Non Woven Technology Co., Ltd.idakhazikitsidwa mu Meyi 2020. Ndi bizinesi yayikulu yopanda nsalu yopanga nsalu kuphatikiza kafukufuku ndi chitukuko, kupanga, ndi malonda. Itha kupanga mitundu yosiyanasiyana ya nsalu za PP spunbond zosalukidwa ndi m'lifupi mwake osakwana 3.2 metres kuchokera ku 9 magalamu mpaka 300 magalamu.