EVA vs ETPU – Izixhobo zesihlangu Midsole

Umsebenzi we-Shoe Midsole

Isihlangu sezemidlalo esiqhelekileyo sahlulwe sibe ngamacandelo amathathu: phezulu, i-midsole, kunye ne-outsole. I-midsole ibonelela nge-cushioning kunye ne-rebound, ithatha impembelelo eyenziwe ngexesha lokuzilolonga, ibonelela ngokhuseleko, kunye nokuziva unyawo oluthambileyo nolukhululekile. Kunokuthiwa i-midsole ngumphefumlo wezemidlalo eziqhuba izicathulo, kwaye iteknoloji yezinto eziphathekayo kunye ne-foaming ye-midsole yimpawu ezahlula iteknoloji engundoqo yeempawu ezinkulu.

Yintoni umahluko phakathi EVA kwaye ETPU, izinto ezimbini ezisetyenziselwa i-midsoles yezicathulo?

EVA: Umqolo wezinto zeZihlangu

Igama leekhemikhali EVA yi-Ethylene Vinyl Acetate Copolymer, ekhopolymerized yi-ethylene kunye ne-vinyl acetate. Ngokuqhelekileyo, umxholo we-vinyl acetate (VA) uphakathi kwe-5% kunye ne-40%. Xa kuthelekiswa nepolyethylene (PE), EVA yazisa i-vinyl acetate monomer kwitsheyina le-molecular, enciphisa i-crystallinity ephezulu kwaye iphucule ukuqina, ukuchasana kwempembelelo, ukuhambelana kokuzalisa, kunye nokusebenza kokutywinwa kobushushu. Ke ngoko, isetyenziswa kakhulu kwizixhobo zezihlangu ezinogwebu, iifilim ezisebenzayo ze-greenhouse, ukubunjwa kokupakisha, izinto zokuncamathelisa ezinyibilikayo ezishushu, iingcingo kunye neentambo, kunye nezinto zokudlala. Ingakumbi kwishishini lezihlangu, EVA isetyenziswe kwii-sole kunye nezixhobo zangaphakathi ze-mid-to-high-end izicathulo zokuhamba, izicathulo zokuhamba, i-slippers, kunye neembadada.

EVA Ukusebenza kunye neXabiso

Ngokobuchwephesha, EVA idla ngokuba namagwebu ekhemikhali kumngundo kushishino lwezihlangu. EVA iigranules zifakwe kwi-mold kwaye ziphantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu kwi-foam. Ugwebu EVA inokwenza i-sole ibe lula, kunye ne EVA i-resin ene-elasticity ethile inika ekuphela kwayo umsebenzi ofanelekileyo wokuthoba, ukwenza EVA izihlangu ezinegwebu ezifanelekileyo kwizihlangu ezininzi eziqhelekileyo kunye nezihlangu zokubaleka. I-rebound elasticity ye-foamed EVA inganyuswa ngokubanzi ukuya kuma-50-55%, okanye nangaphezulu. 

EVA iimveliso ezinogwebu ezixutyiweyo zisetyenziswa ngokubanzi njengezinto zodwa kunye nezangaphakathi kwizihlangu zabakhenkethi eziphakathi ukuya kwephezulu, izihlangu zokuhamba, iziliphu, kunye neembadada. Ngenxa inzuzo ixabiso EVA izinto ezinegwebu, iya kuhlala iyona nto iphambili yokukhetha izihlangu zezemidlalo ezininzi ixesha elide kwixesha elizayo.

ETPU: I-Revolutionary Foamed Shoe Material

IiNzuzo ezibalulekileyo ze TPU

TPUMfutshane i-thermoplastic polyurethane i-elastomer, yicopolymer ecandiweyo eyenziwe nge-disocyanate, i-chain extender, kunye ne-polyol. Icandelo elithambileyo elenziwe nge-polyol libonisa ukuguquguquka kunye nokuqina, ngelixa i-disocyanate isebenza njengenxalenye enzima, inika ubunzima bezinto kunye nokuqina. Emva kokuba icandelo elinzima liqaqambe njengendawo yokudibanisa umzimba, TPU ibonisa ukuqina okuphezulu. Ngoko ke, TPU ineengenelo ezibalulekileyo ezinje ngokuqina kokuqina okuphezulu, ubude obukhulu ngexesha lekhefu, kunye nesantya esisezantsi soxinzelelo lwexesha elide lokuguga.

ETPU Ukusebenza Okugqwesileyo ngakumbi

Ngokwenkqubo yokuvelisa, i-foaming yomzimba isetyenziselwa i-midsole ye ETPU, ehambelana nokusingqongileyo kwaye iphinde isetyenziswe ngaphandle kwevumba xa kuthelekiswa nekhemikhali yogwebu EVA. Emva kokubunjwa, inikezela ngesakhiwo esifana ne-popcorn enokuqina okugqwesileyo kunye nokubuyiselwa kotshintsho, kunye nokunganyangeki kokunxiba kunye nokusebenza okuchasene nokutyibilika okungaphezulu kakhulu kunemveli. EVA izixhobo. Abanamagwebu TPU, okanye ETPU, inexabiso lokuya kuthi ga kwi-60%, liphezulu kakhulu kunelo le EVA. Oku kuthetha ukuba xa isicathulo sibetha umhlaba kwaye sibuyela emva, i-sole iphinda ibuyele ngamandla amakhulu, ngokufanelekileyo ukunciphisa ukukhathala kwemisipha kunye nokunciphisa ukuthuthumela kwemisipha, kukuvumela ukuba uqhube phambili ngamandla apheleleyo.

ETPU Price

kunjalo, ETPU ibiza ngaphezulu kune EVA, eye yanqanda abanye abavelisi, kwaye kukho ubunzima obuthile kwinkqubo yokwenziwa kwezinto ezintsha. Kodwa le yimiqobo yokwexeshana. Abavelisi abaninzi bazamile ukuzisa ETPU izixhobo kuluhlu olubanzi lwezicelo ezisezantsi. Umzekelo, isicelo ngempumelelo yorhwebo ETPU umkhondo weplastiki. Kwiminyaka yakutshanje, izicelo ezininzi zentengiso zivele kwintsimi yethu yombono, njenge ETPU izihlalo zebhayisekile, iipads zokukhusela ezemidlalo, ETPU iimethi zabantwana ezirhubuluzayo, ii-helmet padding, izihlalo zemoto, njalo njalo.

Kuko konke, ETPU ibiza ngaphezulu kune EVA kwaye kunzima ukuhlukana ne-label effect ye-Adidas. Nangona kunjalo, ETPU ingcono kune EVA ngokubhekiselele kwikhono lokubuyela kwakhona, ukubuyiswa kwe-deformation, ukuxhathisa ukunxiba, kunye nokusebenza okuchasene ne-slip. Okona kubalulekileyo, ETPU ihambelana nendlela yokhuselo lokusingqongileyo. Ngoko ke, xa ukhetha izinto eziphathekayo ze-midsoles ezifanelekileyo, izinto ezinjengokubonakala, ukuthamba, kunye nokukhululeka kwezihlangu kufuneka ziqwalaselwe, kwaye ixabiso eliphezulu lezihlangu liyaqondakala.

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