EVA ita ce ta huɗu mafi girma na ethylene jerin polymer bayan HDPE, LDPE da LLDPE.Idan aka kwatanta da kayan gargajiya, farashinsa ya ragu sosai.Mutane da yawa suna tunanin cewa kayan kumfa na EVA shine cikakkiyar haɗuwa da harsashi mai laushi da harsashi mai laushi, yana riƙe da fa'idodin kumfa mai laushi da wuya yayin watsi da rashin amfani.Hakanan, sassaucin ra'ayi a cikin ƙirar kayan abu da iyawar masana'anta shima babban mahimmanci ne a cikin wasu manyan kamfanoni na duniya da samfuran suna juya zuwa kumfa EVA lokacin da ake buƙatar kayan masana'anta masu inganci, masu rahusa.
Fiye da sassauƙa, kayan kumfa EVA yana kula da rayuwarmu ta yau da kullun da ayyukan kasuwanci, kuma ya haifar da tagomashin masu amfani da ƙarshe.Takalma, Pharmaceuticals, photovoltaic panels, wasanni da kuma kayan shakatawa, kayan wasan yara, bene/yoga tabarma, marufi, kayan aikin likita, kayan kariya, wat
er samfuran wasanni suna cikin buƙatu mai ƙarfi don samfuran filastik masu ɗorewa, kuma ɓangaren kasuwar kumfa EVA yana ci gaba da haifar da sabon haɓaka.
丨EVA jiki da kayan aikin injiniya
Kaddarorin EVA copolymers an ƙaddara su ne ta hanyar abun ciki na vinyl acetate da matakin ruwa.Haɓakawa a cikin abun ciki na VA yana ƙaruwa da yawa, nuna gaskiya da sassaucin kayan aiki yayin rage ma'anar narkewa da taurin.Ethylene-vinyl acetate copolymer (EVA) wani abu ne na roba sosai wanda za'a iya haɗa shi don samar da kumfa kamar roba, amma tare da kyakkyawan ƙarfi.Yana da sassauƙa sau uku fiye da ƙananan ƙarancin polyethylene (LDPE), yana da tsayin tsayi na 750%, kuma yana da matsakaicin zafin narkewa na 96°C.
Dangane da abubuwan da ke cikin tsarin samarwa, ana iya samun nau'ikan nau'ikan taurin Eva.Yana da mahimmanci a kula da matsakaicin matsakaicin taurin saboda EVA ba ta dawo da siffarta ba bayan ci gaba da matsawa.Idan aka kwatanta da EVA mai wuya, EVA mai laushi ba shi da juriya ga abrasion kuma yana da ɗan gajeren rayuwa a cikin tafin kafa, amma ya fi dacewa.
丨 EVA thermal Properties
Matsayin narkewa na Eva yana raguwa tare da haɓaka abun ciki na VA.Saboda haka, yawan zafin jiki na amfani da copolymer yana da ƙasa idan aka kwatanta da homopolymer daidai (LDPE).Matsakaicin zafin aiki na kayan aikin ya fi ƙasa da zafin jiki na laushi Vicat.Kamar yadda yake tare da duk polymers na thermoplastic, zafin jiki ya dogara da tsawon lokaci da matakin damuwa na inji wanda aikin aikin ya kasance mai zafi.Yayin da zafin jiki ya ƙaru, zafin wutar lantarki yana raguwa har sai ya kai wani tudu kusa da wurin narkewa.
Lokacin aikawa: Satumba-23-2022