Kodi zinthu za EVA ndi chiyani? Kusanthula kwathunthu kwa mawonekedwe ndi kugwiritsa ntchito kwa zida za EVA
EVA ndi chinthu chodziwika bwino komanso chogwiritsidwa ntchito kwambiri pamakampani opanga mankhwala, EVA ndi chiyani? M'nkhaniyi, tifotokoza mwatsatanetsatane makhalidwe oyambirira a EVA, ndondomeko yopangira ndikugwiritsa ntchito m'mafakitale osiyanasiyana kuti akuthandizeni kumvetsa bwino zinthu zambiri zomwe zimagwira ntchito.
Choyamba, tanthauzo ndi kapangidwe ka EVA
EVA (ethylene vinyl acetate copolymer) ndi zinthu za polima zopangidwa kuchokera ku copolymerization ya ethylene ndi vinyl acetate (VA). Kapangidwe kake ka mankhwala kumatsimikizira kusinthasintha kwake kwabwino kwambiri, kukana mankhwala ndi malo otsika osungunuka.Makhalidwe a EVA akhoza kusinthidwa mwa kusintha zomwe zili mu vinyl acetate, zomwe zili pamwambazi, zimakhala bwino kusinthasintha kwazinthu, koma mphamvu zamakina zimachepetsedwa.
Chachiwiri, njira yopangira Eva
Kupanga kwa EVA kumachitika makamaka kudzera pamachitidwe amphamvu kwambiri a polymerization. Mu njira ya polymerization, ethylene ndi vinilu acetate pa kutentha kwambiri ndi kuthamanga kwambiri kudzera mwa free radical Initiator copolymerization, mapangidwe osiyanasiyana a VA EVA utomoni. Kusintha kwa njira yopangira zinthu kumatha kukhudza momwe zinthu zimagwirira ntchito, mwachitsanzo, zinthu zapamwamba za vinyl acetate zimatha kupititsa patsogolo kuwonekera komanso kufewa kwa EVA, utomoni wa EVA utha kusinthidwa kukhala filimu, pepala kapena thovu, zomwe zimagwiritsidwa ntchito m'mafakitale osiyanasiyana.
Chachitatu, mikhalidwe yayikulu ya zida za EVA
Zinthu za EVA zimagwiritsidwa ntchito kwambiri chifukwa cha mawonekedwe ake apadera akuthupi ndi mankhwala. Iwo ali kusinthasintha wabwino ndi elasticity, ngakhale pa kutentha otsika akhoza kukhalabe soft.EVA ali kwambiri zotsatira kukana ndi abrasion kukana, zomwe zimapangitsa kuti pakufunika durability ndi chitetezo cha ntchito kwambiri performance.EVA zakuthupi alinso kukana zabwino cheza ultraviolet ndi kukana mankhwala, zomwe zimapangitsa kukhala oyenera ntchito panja.
Chachinayi, madera ogwiritsira ntchito zipangizo za EVA
Titamvetsetsa za zinthu za EVA, tiyeni tiwone mbali zake zazikulu zomwe zimagwiritsidwa ntchito, zinthu za EVA zimagwiritsidwa ntchito kwambiri popanga nsapato, makamaka popanga soles ndi midsoles, chifukwa cha magwiridwe ake abwino komanso mawonekedwe opepuka amayamikiridwa, EVA imagwiritsidwanso ntchito pamakampani opanga ma CD, opangidwa ndi thovu loteteza kapena filimu, yomwe imagwiritsidwa ntchito muzogulitsa zamagetsi, EVA imachulukitsidwa pang'onopang'ono muzogulitsa zamankhwala! EVA ikukulanso pang'onopang'ono kugwiritsidwa ntchito kwake m'makampani azachipatala, omwe amagwiritsidwa ntchito kwambiri popanga matumba olowetsedwa ndikuyika mankhwala.
Chachisanu, chitukuko chamtsogolo cha zida za EVA
Ndi kupititsa patsogolo chidziwitso cha chilengedwe, zida za EVA zilinso panjira yachitukuko chokhazikika. Kafukufuku wazinthu zowonongeka za EVA ali pachimake, tsogolo likhoza kuyambitsa zipangizo za EVA zowonongeka kuti zikwaniritse zosowa za madera osiyanasiyana. Ndi kupita patsogolo kwa sayansi ndi ukadaulo, magwiridwe antchito a zida za EVA akuyembekezeka kupititsidwa patsogolo, ndikutsegulira zina zambiri.
Mapeto
EVA ndi chinthu chochita bwino kwambiri komanso ntchito zosiyanasiyana. Kupyolera m'mawu oyamba a nkhaniyi, muyenera kumvetsetsa mozama za "zinthu za EVA". Kaya m'moyo watsiku ndi tsiku, zinthu zamafakitale, kapena zida zamankhwala, zida za EVA zimagwira ntchito yofunika. M'tsogolomu, ndi kupita patsogolo kwaukadaulo komanso zofunikira pachitetezo cha chilengedwe, kugwiritsa ntchito zida za EVA kudzakhala chiyembekezo chachikulu.