Nkhani - Konzani Mavuto a EVA Foam

M'zaka zaposachedwapa, msika wa nsapato padziko lonse lapansi wawona kuchuluka kwa zinthu, zomwe zikuwonjezera mpikisano pakati pa makampani apamwamba kwambiri. Kuchulukirachulukira kwa malingaliro ndi ukadaulo watsopano mu nsapato kwapangitsa kuti pakhale kufunikira kwakukulu kwa zinthu zopangira thovu mumakampani opanga nsapato. Zipangizo zopangira thovu za polymer zomwe zimagwira ntchito bwino kwambiri zakhala maziko azinthu zambiri zogulitsa, makamaka mu gawo la nsapato zamasewera.

Nsapato zamasewera zokhazikika zimakhala ndi magawo atatu akuluakulu: chapamwamba, chapakati, ndi chakunja.

Chitsulo chapakati ndi chofunikira kwambiri popereka kutsitsira, kubweza, komanso kuyamwa mphamvu pamasewera. Chimatsimikizira chitetezo ndi kumva bwino, zomwe zimapangitsa kuti chikhale chamoyo pa nsapato zamasewera. Ukadaulo wa nsalu ndi thovu la chitsulo chapakati umasiyanitsa ukadaulo wofunikira wa mitundu yosiyanasiyana yayikulu.

EVA—Nsapato Zoyambirira Kwambiri Zogwiritsa Ntchito Thovu:

Ethylene-vinyl acetate copolymer (EVA) ndiye chinthu choyambirira kwambiri chomwe chimagwiritsidwa ntchito mu midsoles. Thovu loyera la EVA nthawi zambiri limakhala ndi rebound ya 40-45%, kuposa zinthu monga PVC ndi rabara pakulimbana, kuphatikiza ndi zinthu monga kupepuka komanso kosavuta kukonza.

Mu gawo la nsapato, njira zopangira thovu la mankhwala la EVA nthawi zambiri zimakhala ndi mitundu itatu: thovu lalikulu lachikhalidwe, thovu laling'ono lopangidwa mu chikombole, ndi thovu lopangidwa ndi jekeseni.

Pakadali pano, kulowetsa thovu pogwiritsa ntchito jakisoni kwakhala njira yofunika kwambiri pokonza zinthu za nsapato.

Mavuto a EVA Thovu:

Vuto lofala ndi ma thovu achikhalidwe a EVA ndi kuchepa kwawo, komwe kumakhudza kuthekera kwawo kupereka chithandizo chabwino kwambiri, makamaka pakugwiritsa ntchito monga nsapato zamasewera. Vuto lina lofala ndi kupezeka kwa kupsinjika ndi kuchepa kwa kutentha pakapita nthawi, zomwe zimakhudza kulimba. Kuphatikiza apo, Pakugwiritsa ntchito komwe kukana kutsetsereka ndi kukana kukanda ndikofunikira, thovu lachikhalidwe la EVA lingalephere kukwaniritsa miyezo yofunikira.

Pofuna kupititsa patsogolo mphamvu zakuthupi za zinthu zopangidwa ndi thovu la EVA, opanga nthawi zambiri amagwiritsa ntchito zinthu zotanuka monga EPDM, POE, OBCs, ndi TPE monga SEBS mu zinthu zopangira za EVA. Kuphatikizidwa kwa EPDM pa zinthu za rabara, POE pa kulimba kwambiri, OBC pa kristalo yofewa, TPE pa kusinthasintha, ndi zina zotero, cholinga chake ndi kukwaniritsa zolinga zosintha. Mwachitsanzo, powonjezera ma elastomer a POE, kulimbanso kwa zinthu nthawi zambiri kumatha kuwonjezeredwa kufika pa 50-55% kapena kupitirira apo.

Foam ya EVA Yatsopano: Chosinthira cha Si-TPV cha Ubwino Wapamwamba komanso Kugwira Ntchito Kowonjezereka

SILIKE Si-TPV imapereka njira ina mu EVA, sikuti imangothetsa mavuto a magwiridwe antchito komanso imagwirizana ndi njira zosamalira chilengedwe. Kapangidwe kake katsopano komanso njira zopangira zimathandiza kuonetsetsa kuti zinthu zikukhalabe zodalirika komanso zogwira ntchito kwa nthawi yayitali, zomwe zimapangitsa kuti zikhale zodalirika komanso zolimba, ndikuwonetsetsa kuti zinthu zomalizidwa zimakhala ndi mitengo yokwera.

Si-TPV (vulcanizate thermoplastic silicone-based elastomer) ndi chinthu chobwezerezedwanso 100%, Poyerekeza ndi OBC ndi POE, chimachepetsa kwambiri kupsinjika ndi kutentha kwa zinthu za thovu la EVA. Zambiri zimawonjezera kulimba, kufewa, kukana kutsetsereka, komanso kukana kukwawa, kuchepetsa kuwonongeka kwa DIN kuchokera pa 580 mm.³mpaka 179 mm³.

Kuphatikiza apo, Si-TPV imawonjezera kukhuta kwa utoto wa thovu la EVA. Kupambana kumeneku kumalola opanga kupanga zinthu zokongola popanda kusokoneza magwiridwe antchito.

Si-TPV iyi monga chosinthira chatsopano cha thovu la EVA imapindulitsa kupanga zinthu zotonthoza komanso zolimba zokhudzana ndi thovu la EVA monga midsoles, zinthu zaukhondo, zinthu zosangalatsa zamasewera, pansi, ma yoga mat, ndi zina zambiri.

Dziwani Tsogolo la EVA Foam ndi SILIKE Si-TPV! Kwezani zinthu zanu kufika pamlingo wapamwamba komanso wapamwamba. Tsegulani mphamvu ya Si-TPV modifier yathu yopita patsogolo kuti mupeze mwayi wosayerekezeka mu mapulogalamu anu a EVA foam.

Lumikizanani nafe lero kuti muyambe ulendo watsopano ndikusintha zomwe zingatheke ndi thovu la EVA!