Kodi pali kusiyana kotani pakati pa EVA, EPE ndi masiponji?

EVAamapangidwa kuchokera ku copolymerization ya ethylene (E) ndi vinyl acetate (VA), yotchedwa EVA, ndipo ndi chinthu chodziwika bwino cha midsole. EVA ndi mtundu watsopano wazinthu zosungirako zachilengedwe. Amapangidwa ndi thovu la EVA, lomwe limagonjetsa zofooka za mphira wamba wa thovu monga brittleness, deformation, ndi kuchira kosauka. Zili ndi ubwino wambiri monga umboni wa madzi ndi chinyezi, shockproof, kutsekemera kwa mawu, kusungirako kutentha, pulasitiki wabwino, kulimba kwamphamvu, kubwezeretsanso, kuteteza chilengedwe, kukana mphamvu, kutsutsa-kutsika ndi kugwedezeka, ndi zina zotero. yabwino chikhalidwe ma CD zakuthupi. njira zina. EVA ili ndi pulasitiki yolimba kwambiri. Ikhoza kufa-kudulidwa mu mawonekedwe aliwonse, ndipo ikhoza kusinthidwa malinga ndi zojambula zamakasitomala. Chikwama chosungira cha EVA chikhoza kusinthidwa ndi mtundu, nsalu ndi nsalu zomwe zimafunidwa ndi kasitomala. EVA imagwiritsidwa ntchito kwambiri pakugwedeza, anti-slip, kusindikiza ndi kusunga kutentha kwa zida zamagetsi, zomangira mabokosi osiyanasiyana, zitini zachitsulo ndi mafakitale ena. Zimagwira ntchito ngati chitetezo, anti-static, fireproof, shockproof, kuteteza kutentha, anti-slip, and fixed. Zosavala komanso zosamva kutentha. Insulation ndi ntchito zina.

Dzina la sayansi la EPE ndi polyethylene yowonjezera, yomwe imatchedwanso thonje la ngale. Ndi mtundu watsopano wazinthu zopakira zomwe zimatha kuchepetsa ndi kuyamwa kugwedezeka. Ndi polyethylene yokhala ndi thovu lalitali yotulutsidwa kuchokera ku polyethylene yotsika kwambiri (LDPE) ngati zida zazikulu. EPE ngale thonje ndi thovu akalumikidzidwa wapadera ntchito butane, zomwe zimapangitsa EPE zotanuka kwambiri, olimba koma osati Chimaona, ndi pamwamba yofewa. Itha kuteteza bwino kuwonongeka komwe kumachitika chifukwa cha mikangano pakuyika zinthu ndipo imakhala ndi mayamwidwe abwino kwambiri komanso kukana. . Tsopano imagwiritsidwa ntchito kwambiri pakuyika zida zamagetsi, mipando, zida zamagetsi zamagetsi ndi zinthu zina. EPE ngale thonje ndi cholimba motsutsana makina mafuta, mafuta, etc. Chifukwa ndi kuwira thupi, ali pafupifupi palibe mayamwidwe madzi. Zitha kukhala zosagwirizana ndi mafuta, sizinganyowe, sizingagwedezeke, zimatulutsa mawu komanso zimateteza kutentha, komanso zimatha kukana kukokoloka kwa zinthu zambiri. EPE ngale thonje akhoza kukwaniritsa zofunika ma CD osiyanasiyana, antistatic, retardant lawi, etc. malinga ndi zosowa zosiyanasiyana mankhwala. Ilinso ndi mitundu yolemera ndipo ndiyosavuta kukonza.
Dzina lasayansi la siponji ndi mphira wofewa wa polyurethane, womwe umagwira ntchito momveka bwino pakuyamwa modzidzimutsa, kuletsa kugunda, komanso kuyeretsa. Mitunduyi imagawidwa kukhala siponji ya poliyesitala ndi siponji ya polyether, yomwe imagawidwanso m'mitundu itatu: kubweza kwambiri, kubweza kwapakatikati komanso kubweza pang'onopang'ono. Siponji imakhala yofewa, yosagwirizana ndi kutentha (imatha kupirira kutentha kwa madigiri 200), ndipo imakhala yosavuta kuwotcha (zowonjezera moto zimatha kuwonjezeredwa). Kutengera ndi kukula kwa thovu lamkati, imatha kuwonetsa makulidwe osiyanasiyana ndipo imatha kupangidwa mosiyanasiyana ngati pakufunika. Imagwiritsidwa ntchito mosiyanasiyana ndipo imagwiritsidwa ntchito makamaka pakuwotcha, kutsekemera kwamafuta, kudzaza zinthu, zoseweretsa za ana, ndi zina.

Kusiyana kwakukulu pakati pa atatuwa ndi motere:
1. Titha kuona kusiyana pakati pawo ndi maso athu. Siponji ndi chopepuka mwa atatuwo. Ndi chikasu pang'ono ndi zotanuka. EVA ndiye wolemera kwambiri pakati pa atatuwo. Ndi yakuda komanso yovuta. EPE ngale thonje amaoneka woyera, amene n'zosavuta kusiyanitsa siponji. Siponji imangobwerera m'mawonekedwe ake mosasamala kanthu kuti mukukanikizira bwanji, koma thonje la EPE pearl limangopindika ndikutulutsa phokoso mukalisindikiza.
2. Mutha kuwona mawonekedwe a wavy pa thonje la ngale ya EPE, ngati thovu lambiri lomatira palimodzi, pomwe EVA ali ndi mawonekedwe ndipo amatha kusiyanitsa malinga ndi ndende yake.
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