EVA ua npuas ncauj xev yog hom tshiab ntawm cov khoom siv rau cov khoom siv hluav taws xob zoo rau cov khoom ua npuas yas, uas muaj qhov zoo ntawm lub ncoo zoo, poob siab tsis kam, kub rwb thaiv tsev, noo noo tsis kam, tshuaj lom neeg tiv thaiv, thiab lwm yam, thiab yog tsis muaj tshuaj lom thiab tsis haum. EVA roj hmab thiab cov khoom yas yog tsim cov txheej txheem tsim thiab tsim, thiab lawv qhov kev ua haujlwm poob siab yog qhov zoo dua li cov khoom siv ua npuas ncauj xws li polystyrene (ua npuas dej), thiab nws ua tau raws li kev tiv thaiv ib puag ncig. Nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom lag luam xa tawm. Piv nrog ntim pov thawj-pov thawj ntim, nws tuaj yeem txiav thiab tsim; vim yog qhov sib txawv loj ntawm qhov ntom ntom, nws tseem tuaj yeem muaj qhov dav dav ntxiv ntawm kev siv.EVA ua npuas ncauj daim kab xevmuaj zoo softness thiab roj hmab zoo li elasticity. Nws tseem tuaj yeem muaj qhov ywj pheej zoo thiab pob tshab thiab nplaim teeb ci ntawm -50 ° C. Tshuaj lom neeg ruaj khov, cov laus ua hauj tsis kam, thiab nws ua hauj. Cov-mob toxic. Kev sib xyaw zoo nrog cov ntxaws, xim zoo, thiab molding ua tiav.
Nws muaj kev sib raug zoo nrog vinyl acetate cov ntsiab lus, hnyav molecular, thiab melts index. Thaum cov melt Performance index (MI) tas mus li thiab cov ntsiab lus ntawm vinyl acetate (VAC) nce, nws qhov elasticity, yooj, yoog, thiab pob tshab kuj tseem nce ntxiv. Thaum cov VAC cov ntsiab lus tsawg dua, qhov kev ua tau zoo yog ze rau ntawm polyethylene, qhov kev nruj me ntsis tau nce ntxiv, thiab hnav tsis kam thiab hluav taws xob rwb thaiv tsev tau zoo dua. Yog tias cov VAC cov ntsiab lus tas mus li thiab cov melt Performance index nce, qhov taw qhia qhov muag yuav poob qis, thiab cov txheej txheem ua kom tiav thiab cov nplaim teeb yuav zoo dua tab sis lub zog yuav txo qis. Txwv tsis pub, nrog qhov txo qis ntawm MI, lub phaus molecular yuav nce, thiab kev cuam tshuam rau kev ua tau zoo thiab ib puag ncig kev sib tw tawg siab yuav nce ntxiv.
