Zatsopano zophatikizika zimatha kugwiritsidwa ntchito pachipatala

Ofufuza ku yunivesite ya Georgia apanga zinthu zatsopano zomwe katundu wake ndi wabwino pazida zamankhwala monga masks ndi mabandeji. Ndiwochezeka kwambiri ndi chilengedwe kuposa zida zomwe zimagwiritsidwa ntchito pano.
Pogwiritsa ntchito nsalu zopanda nsalu (nsalu zopangidwa ndi kujowina ulusi popanda kuwomba kapena kuluka), gulu lotsogozedwa ndi Gajanan Bhat lidatha kupanga zida zosinthika, zopumira komanso zoyamwa zomwe zili zoyenera pazida zamankhwala. Kuphatikizika kwa thonje kumapangitsanso kuti zinthuzo zikhale zomasuka pakhungu (chinthu chofunikira kwambiri pazachipatala) komanso chosavuta kupanga kompositi, ndikupangitsa kuti ikhale yabwino kwambiri kuposa zinthu zomwe zili pamsika pano.
Mu labotale yake ku Northern Riverbend Research Laboratory, Pulofesa Gajanan Bhat akuwonetsa momwe zotanuka zosaluka zimatha kukulunga ndikugwiritsidwa ntchito ngati zovala zachipatala. (Chithunzi ndi Andrew Davis Tucker/University of Georgia)
Ndi ndalama zochokera ku USDA, ochita kafukufuku adayesa mitundu yosiyanasiyana ya thonje ndi zopanda nsalu, komanso zopanda pake zoyambirira, zomwe zimakhala ngati kupuma, kuyamwa madzi ndi kutambasula. Nsalu zophatikizika zinachita bwino pamayesero, kupereka mpweya wabwino, kuyamwa kwambiri kwamadzi komanso kuchira bwino, kutanthauza kuti zimatha kupirira kugwiritsidwa ntchito mobwerezabwereza.
Kufunika kwa nonwovens kukukulirakulira m'zaka zaposachedwa, ndipo mtengo wamsika ukuyembekezeka kufika US $ 77 biliyoni mu 2027, malinga ndi lipoti la Acumen Research and Consulting. Nonwovens amagwiritsidwa ntchito kwambiri pazinthu zapakhomo monga matewera, zinthu zaukhondo za akazi, komanso zosefera za mpweya ndi madzi. Sakhala ndi madzi, amatha kusinthasintha, amatha kupuma, ndipo amatha kusefa mpweya amawapangitsa kukhala abwino kwachipatala.
"Zina mwazinthuzi zomwe zimagwiritsidwa ntchito pazinthu zamoyo, monga zigamba ndi mabandeji, zimafuna kutambasula ndi kuchira pambuyo potambasula. Koma chifukwa amakumana ndi thupi, kugwiritsa ntchito thonje kungakhale kopindulitsa, ikutero Family and Consumer College. Services adati Barth, wapampando wa dipatimenti ya Zovala, Zogulitsa ndi Zomangamanga Zamkati, yemwe adalemba nawo pepala lolembapo. Shafiqul Islam.
Ngakhale thonje silotambasuka ngati nsalu yopanda nsalu, imakhala yotsekemera komanso yofewa, zomwe zimapangitsa kuti zikhale zomasuka kuvala. Thonje ndi mbewu yayikulu ku Georgia komanso gawo lofunikira pazachuma cha boma. USDA nthawi zonse imayang'ana ntchito zatsopano za thonje, ndipo Barth adanenanso kuti "aphatikize zotambasula zosapota ndi thonje kuti apange chinthu chomwe chili ndi thonje wambiri komanso wotambasuka."
Pulofesa Gajanan Bhat amayesa ma nonwovens otambasuka pogwiritsa ntchito tester permeability mu labotale yake ku Riverbend North Research Laboratories. (Chithunzi ndi Andrew Davis Tucker/University of Georgia)
Barth, yemwe amagwira ntchito muzopanga zopanda nsalu, amakhulupirira kuti zinthu zomwe zatulukazo zitha kusunga zomwe zimafunikira zazinthu zosawokoka pomwe zimakhala zosavuta kuzigwira komanso kompositi.
Kuti ayese mawonekedwe a ma kompositi, Bhat, Sikdar ndi Chisilamu adaphatikiza thonje ndi mitundu iwiri ya nonwovens: spunbond ndi meltblown. Mitundu ya Spunbond nonwovens imakhala ndi ulusi wokulirapo ndipo nthawi zambiri imakhala yolimba, pomwe zosungunula zosawoloka zili ndi ulusi wabwino kwambiri komanso zimakhala ndi zosefera bwino.
"Lingaliro linali lakuti, 'Ndi kuphatikiza kotani komwe kungatipatse zotsatira zabwino?'" Butt anatero. "Mukufuna kuti ichiritse bwino, komanso ikhale yopumira komanso kukhala ndi luso losokoneza."
Gulu lofufuzalo linakonza nsalu zosawomba za makulidwe osiyanasiyana ndikuziphatikiza ndi nsalu imodzi kapena ziwiri za thonje, zomwe zidapangitsa kuti mitundu 13 iyesedwe.
Mayeso awonetsa kuti zinthu zophatikizika zasintha kuyamwa kwamadzi poyerekeza ndi zida zoyambira zosalukidwa, ndikusunga mpweya wabwino. Zida zophatikizika zimamwa madzi nthawi 3-10 kuposa nsalu zopanda thonje. Chophatikizikacho chimatetezanso kuthekera kwa ma nonwovens kuti achire pakutambasula, kuwalola kuti azitha kusuntha modzidzimutsa popanda kupunduka.
Njira yopangira ma nonwovens ophatikizika amatha kugwiritsa ntchito thonje lotsika kwambiri ndipo nthawi zina ngakhale kuwononga kapena kubweza thonje popanga zinthu monga T-shirts ndi mapepala ogona, akutero Barth, pulofesa wa ulusi ndi nsalu ku Georgia Athletic Association. Choncho, zotsatira zake zimakhala zokonda zachilengedwe komanso zotsika mtengo kupanga.
Kafukufukuyu adasindikizidwa mu nyuzipepala ya Industrial Textiles. Olemba nawo ndi Doug Hinchliffe ndi Brian Condon a USDA Southern Regional Research Center.