Intangiriro Kuri EVA Ashyushye Yashushe

EVA ishyushye ifata ifata nigishishwa - kubuntu, amazi - kubuntu, 100% bikomeye, polymer fusible. Irakomeye mubushyuhe bwicyumba kandi ishonga mumazi atemba, yijimye yamazi iyo ashyutswe kurwego runaka. Nyuma yo gushonga, ni ibara ryijimye, ryoroshye cyangwa riva - ibintu byera. Ibice byingenzi bigize ibishishwa bishushe, resin yibanze, ni copolymer ya Ethylene na vinyl acetate munsi yumuvuduko mwinshi, ihujwe na tackifiers, modifiseri zihindura, antioxydants, nibindi, kugirango habeho ibishishwa bishyushye.

EVA ni ibikoresho bya pulasitiki bigizwe na Ethylene (E) na vinyl acetate (VA). Ikigereranyo cyiyi miti yombi irashobora guhinduka kugirango ihuze ibyifuzo bitandukanye. Ibirimo byinshi bya vinyl acetate (ibirimo VA) bivamo kunoza umucyo, ubworoherane, no gukomera.

Ethylene - vinyl acetate copolymer (izwi kandi nka Ethylene - vinyl acetate copolymer) ibonwa na copolymerizing Ethylene (E) na vinyl acetate (VA). Izina ryicyongereza ni Ethylene Viny Acetate, mu magambo ahinnye nka EVA cyangwa E / VAC. Uburyo bwa polymerisiyonike burimo - umuvuduko mwinshi polymerisiyonike (kuri plastiki), polymerisiyonike yumuti (infashanyo yo gutunganya PVC), polymerisiyasi ya emuliyoni (adhesives), hamwe na polymerisation ihagarikwa. Emulsion polymerisation ikoreshwa kubintu bya vinyl acetate (VA) hejuru ya 30%, mugihe - igitutu kinini polymerisation ikoreshwa kubintu biri munsi ya VA. EVA ifite porogaramu zitandukanye.

Mubisanzwe, EVA ifite vinyl acetate iri munsi ya 5% ikoreshwa cyane cyane muri firime, abahindura LDPE insinga ninsinga, hamwe na adhesives; EVA ifite vinyl acetate ya 5% -10% ikoreshwa muri firime ya elastique; EVA ifite vinyl acetate ya 20% -28% ikoreshwa cyane cyane kumashanyarazi ashyushye hamwe nibicuruzwa bitwikiriye; na EVA ifite vinyl acetate ya 5% -45% ikoreshwa cyane cyane muri firime (harimo na firime yubuhinzi) hamwe nimpapuro, inshinge zakozwe kandi zibumbabumbwe, ibicuruzwa bibyibushye, hamwe nudushushe dushyushye. Ikoreshwa cyane mubikoresho byinkweto zuzuye ifuro, firime ikora parike, ibipapuro bipakira, ibishishwa bishushe, insinga ninsinga, nibikinisho.