EVA yog qhov thib plaub loj tshaj plaws ethylene series polymer tom qab HDPE, LDPE thiab LLDPE.Piv nrog rau cov khoom siv tsoos, nws cov nqi qis dua.Ntau tus neeg xav tias EVA ua npuas ncauj yog qhov zoo tshaj plaws ua ke ntawm lub plhaub tawv thiab lub plhaub mos, khaws qhov zoo ntawm cov mos mos thiab tawv ua npuas ncauj thaum tso tseg qhov tsis zoo.Tsis tas li ntawd, qhov yooj yim ntawm cov khoom tsim thiab kev tsim muaj peev xwm kuj yog ib qho tseem ceeb ntawm qee lub ntiaj teb cov tuam txhab ua lag luam thiab cov khoom lag luam tig mus rau EVA ua npuas ncauj thaum cov khoom lag luam zoo, tus nqi qis.
Ntau tshaj qhov hloov tau yooj yim, EVA ua npuas ncauj cov ntaub ntawv saib xyuas peb lub neej txhua hnub thiab kev ua lag luam, thiab tau nthuav dav rau cov neeg siv khoom kawg.Khau khau, tshuaj, photovoltaic panels, khoom ua si thiab leisure, khoom ua si, flooring / yoga mats, ntim, khoom kho mob, tiv thaiv iav, wat
er cov khoom ua si yog nyob rau hauv kev thov rau cov khoom yas ruaj khov, thiab EVA ua npuas ncauj khoom lag luam ntu txuas ntxiv mus rau kev loj hlob tshiab ntawm.
EVA lub cev thiab cov khoom siv kho tshuab
Cov khoom ntawm EVA copolymer feem ntau yog txiav txim siab los ntawm cov ntsiab lus vinyl acetate thiab cov degree ntawm fluidity.Qhov nce hauv VA cov ntsiab lus nce qhov ceev, pob tshab thiab hloov pauv ntawm cov khoom thaum txo cov ntsiab lus melting thiab hardness.Ethylene-vinyl acetate copolymer (EVA) yog cov khoom siv elastic heev uas tuaj yeem ua rau sintered los ua cov roj hmab zoo li ua npuas ncauj, tab sis muaj zog zoo heev.Nws yog peb zaug hloov pauv ntau dua li qhov ntom ntom polyethylene (LDPE), muaj qhov tensile elongation ntawm 750%, thiab muaj qhov kub siab tshaj plaws ntawm 96 ° C.
Nyob ntawm cov khoom xyaw hauv cov txheej txheem tsim khoom, qhov sib txawv ntawm EVA hardness tuaj yeem ua tiav.Nws yog ib qho tseem ceeb uas yuav tsum tau ua kom muaj qhov nruab nrab ntawm hardness vim tias EVA tsis rov qab los ntawm nws cov duab tom qab compression tas li.Piv nrog rau EVA nyuaj, softer EVA yog tsis tshua muaj resistant rau puas thiab muaj ib tug luv luv lifespan nyob rau hauv lub ib leeg, tab sis yog ntau xis nyob.
Cov khoom siv hluav taws xob EVA thermal
Lub melting point ntawm EVA txo nrog qhov nce ntawm VA cov ntsiab lus.Yog li ntawd, kev siv kub ntawm cov copolymer yog qis dua piv rau qhov sib xws homopolymer (LDPE).Qhov siab tshaj plaws ua haujlwm kub ntawm lub workpiece yog tsawg dua qhov kub ntawm softening Vicat.Raws li nrog rau tag nrho cov thermoplastic polymers, qhov kub thiab txias nyob ntawm lub sij hawm thiab theem ntawm txhua yam kev ntxhov siab uas lub workpiece raug cua sov.Raws li qhov kub thiab txias, qhov conductivity kub txo kom txog thaum nws nce mus txog lub toj siab ze rau lub melting point.
Post lub sij hawm: Sep-23-2022