Kedu ihe bụ EVA material? Nyocha zuru oke nke njirimara na ngwa nke ihe EVA
EVA bụ ihe a na-ahụkarị na nke a na-ejikarị eme ihe na ụlọ ọrụ kemịkalụ, gịnị bụ EVA? N'isiokwu a, anyị ga-ewebata n'ụzọ zuru ezu njirimara ndị bụ isi nke EVA, usoro mmepụta na ngwa ya na ụlọ ọrụ dị iche iche iji nyere gị aka ịghọta nke ọma nke a multi-functional material.
Nke mbụ, nkọwa bụ isi na mejupụtara Eva
EVA (etylene vinyl acetate copolymer) bụ ihe eji eme ihe polymer sitere na copolymerization nke ethylene na vinyl acetate (VA). Ọdịdị kemịkal ya na-ekpebi mgbanwe dị mma ya, nguzogide kemịkalụ na ebe mgbaze dị ala. E nwere ike imezi àgwà nke EVA site n'ịgbanwe ọdịnaya nke vinyl acetate, ihe dị elu nke ọdịnaya ahụ, ọ ka mma mgbanwe nke ihe ahụ, ma ike nrụpụta na-ebelata.
Nke abụọ, usoro mmepụta nke Eva
Mmepụta EVA na-abụkarị site na mmeghachi omume polymerisation dị elu. Na usoro polymerisation, ethylene na vinyl acetate na elu okpomọkụ na nrụgide dị elu site na free radical initiator copolymerization, nhazi nke dị iche iche nke resin VA EVA. Ndozi nke usoro mmepụta ihe nwere ike imetụta arụmọrụ nke ihe ahụ, dịka ọmụmaatụ, ọdịnaya vinyl acetate dị elu nwere ike ime ka nghọta na ịdị nro nke EVA dịkwuo mma, EVA resin nwere ike imeziwanye ya na fim, mpempe akwụkwọ ma ọ bụ ihe ụfụfụ, nke a na-eji mee ihe n'ọtụtụ ụlọ ọrụ mmepụta ihe.
Nke atọ, isi njirimara nke ihe EVA
A na-eji ihe EVA eme ihe n'ọtụtụ ebe n'ihi njirimara anụ ahụ na kemịkal ya pụrụ iche. Ọ nwere ezigbo mgbanwe na elasticity, ọbụna na obere okpomọkụ nwere ike ịnọgide na-adị nro.EVA nwere mmetụta dị mma na-eguzogide ọgwụ na nkwụsị nke abrasion, nke na-eme ka ọ dị mkpa maka ogologo oge na nchebe nke ngwa nke arụmọrụ dị mma.EVA ihe nwekwara ezigbo nguzogide ultraviolet radiation na chemical resistance, nke na-eme ka ọ dị mma maka iji n'èzí mee ihe.
Nke anọ, mpaghara ngwa nke ihe EVA
Mgbe ịghọta ihe EVA ihe bụ, ka anyị leba anya na ya isi akụkụ nke ngwa, EVA ihe ọtụtụ-eji na mmepụta nke akpụkpọ ụkwụ, karịsịa na mmepụta nke soles na midsoles, n'ihi na nke ọma cushioning arụmọrụ na fechaa àgwà na-favored, EVA na-eji na nkwakọ ngwaahịa, mere nke na-echebe ụfụfụ ma ọ bụ ihe nkiri, na-eji na shockproof nkwakọ na eletrọnịkị ngwa ngwa bụ EVA na-eji nwayọọ nwayọọ na-akwakọ na ụlọ ọrụ ọgwụ! EVA na-ejikwa nke nta nke nta na-abawanye ojiji ya na ụlọ ọrụ ahụike, nke a na-ejikarị eme akpa infusion na nkwakọ ọgwụ.
Nke ise, ọdịnihu mmepe omume nke Eva ihe
Site na nkwalite mmata gburugburu ebe obibi, ihe EVA nọkwa na ntụzịaka nke mmepe na-adigide. Ihe nyocha ihe EVA na-emebi emebi na-aga n'ihu, ọdịnihu nwere ike iwebata ihe EVA na-emetụta gburugburu ebe obibi iji gboo mkpa mpaghara dị iche iche. Site na ọganihu nke sayensị na nkà na ụzụ, a na-atụ anya na a ga-emeziwanye arụmọrụ nke ihe EVA, na-emepe ihe ngosi ngwa ọzọ.
Mmechi
EVA bụ ihe na-arụ ọrụ nke ọma na ọtụtụ ngwa ngwa. Site na mmalite nke isiokwu a, ị ga-enwekwu nghọta miri emi banyere okwu nke "ihe bụ EVA ihe". Ma na ndụ kwa ụbọchị, ngwaahịa ụlọ ọrụ mmepụta ihe, ma ọ bụ ngwaọrụ ahụike, ihe EVA na-arụ ọrụ dị mkpa. N'ọdịnihu, na ọganihu nke nkà na ụzụ na ihe nchebe gburugburu ebe obibi chọrọ, ntinye nke ihe EVA ga-abụ atụmanya sara mbara karị.