Ethylene Vinyl Acetate (EVA) yog dab tsi? Cov yam ntxwv thiab kev siv
Nov 05, 2024| 1. Ethylene vinyl acetate (EVA) yog dab tsi?
Ethylenevinyl acetate (EVA) yog lub npe hu ua copolymer, pib hauv xyoo 1950 thiab tsim los ntawm DuPont. Tshwj xeeb, copolymer yog ib hom polymer ua los ntawm ob lossis ntau dua monomers los ntawm polymerization. Monomers yog qhov yooj yim units, thiab thaum lawv koom ua ke, lawv tsim cov saw ntev, hu ua polymers.
Ethylene-vinyl acetate (EVA) yas muaj xws li randomly faib vinyl acetate chains interspersed nrog ethylene-ₓy chains. EVA tshwm sim los ntawm copolymerization ntawm ethylene thiab vinyl acetate, ua los ntawm thaiv copolymerization los yog daws copolymerization.
EVA cov ntaub ntawv yas feem ntau yog li ntawm 10 txog 50% vinyl acetate, qhov seem yog ethylene. Qhov kev sib xyaw tshwj xeeb no tso cai rau kev tsim peb hom sib txawv ntawm EVA copolymer, txhua qhov tsim nyog rau cov ntawv thov tshwj xeeb hauv kev lag luam sib txawv. Txawm hais tias hauv kev ntim khoom, khau, lossis lwm qhov chaw, EVA qhov kev hloov pauv thiab cov cwj pwm zoo ua rau nws mus rau cov khoom siv, qhia txog nws qhov tseem ceeb ntawm cov khoom siv niaj hnub polymer.
2. Dab tsi yogEVACov yam ntxwv ntawm polymer?
2.1. High yooj thiab pob tshab
Ethylene vinyl acetate (EVA) sawv tawm rau nws qhov kev hloov pauv tau zoo tshaj plaws thiab muag muag. Cov yam ntxwv no tso cai rau nws yooj yim molded thiab zoo li tus yam tsis poob nws daim ntawv, ua rau nws zoo tagnrho cov ntaub ntawv rau cushioning thiab padding. Qhov tseem ceeb, EVA tswj nws qhov hloov tau yooj yim txawm tias qhov kub thiab txias, ntxiv rau nws txoj kev siv ntau yam.
EVA nthuav tawm siab pob tshab, tso cai rau lub teeb hla nrog qhov pom tseeb. Cov cuab yeej no muaj txiaj ntsig zoo hauv cov ntawv thov uas qhov pom kev pom lossis kev zoo nkauj yog qhov tseem ceeb. Lub pob tshab ntawm EVA ua rau nws muaj kev xaiv tsim nyog rau ntau yam khoom, ua rau nws muaj ntau yam hauv kev tsim thiab kev ua haujlwm.
2.2. Lub teeb
Renowned rau nws lub teeb yuag, Ethylene-vinyl acetate pom kev siv dav hauv kev tsim cov khaub ncaws tiv thaiv thiab khau. Cov yam ntxwv no txhim kho kev nplij siab rau cov neeg siv thaum tswj xyuas kom ruaj thiab yoog raws.
2.3. Tsis muaj tshuaj lom
EVA yog cov khoom tsis muaj tshuaj lom, ua kom muaj kev nyab xeeb rau kev siv hauv ntau qhov chaw, suav nrog kev saib xyuas menyuam yaus, kev lag luam kho mob, thiab cov ntawv thov cuam tshuam txog zaub mov. Nws cov xwm txheej tsis muaj tshuaj lom ntxiv rau nws cov kev siv ntau yam thiab nthuav dav nws cov kev siv ntau yam.
2.4. High waterproof
EVA cov dej tsis kam ua rau cov yas no tuaj yeem tiv taus huab cua los nag thiab cua, haum rau cov ntawv thov xws li cov ris tsho dhia dej lossis cov tsho tiv thaiv los nag. Cov cuab yeej no ua kom cov khoom EVA tseem txhim khu kev qha hauv ntau yam huab cua.
2.5. Tsawg melting kub
Ib qho txiaj ntsig zoo ntawm ethylene vinyl acetate yog nws qhov kub thiab txias. Cov yam ntxwv no muaj ntau yam hauv kev tsim cov khoom siv textile, tso cai rau kev sib txuas lus yooj yim thiab ua kom yooj yim rau kev tsim ntau yam khoom.
3. Dab tsi yog daim ntawv thov ntawmEVA?
Ethylene-vinyl acetate (EVA) yog ntau yam khoom siv dav siv thoob plaws ntau lub lag luam rau nws cov khoom tshwj xeeb, xws li kev kho mob, hluav taws xob, dej hiav txwv, thiab hnub ci, thiab lwm yam. cov sectors, pab txhawb rau nws txoj kev siv dav.
Kev tsim cov khau:EVA yog cov khoom siv tseem ceeb hauv kev lag luam khau, tshwj xeeb hauv kev tsim cov khau khau. Nws cov khoom cushioning, slip resistance, thiab durability ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim cov khau zoo nkauj thiab ntev ntev.
Automotive Cheebtsam:Hauv kev lag luam automotive, EVA yog ua haujlwm hauv cov khoom siv tes ua xws li cov pob thiab cov pwm. Nws muaj peev xwm tiv taus ib puag ncig hnyav, tshuaj lom neeg, thiab roj ua rau nws muaj kev ntseeg siab rau cov ntawv thov no.
Cov khoom ua si dej thiab cov khoom ua si:Kev hloov pauv ntawm EVA ua rau nws zoo meej rau kev tsim cov khoom ua si dej ua si thiab cov khoom ua si. Txawm hais tias nyob rau hauv daim ntawv ntawm padding rau cov kaus mom hlau, cov iav tiv thaiv, los yog cov khoom ua si dej, EVA cov khoom ua rau muaj kev nyab xeeb thiab kev ua haujlwm.
Flexible khoom ntim:EVA yog siv rau hauv kev lag luam ntim khoom tsim ua npuas ncauj ntxig uas tiv thaiv cov khoom muag thaum lub sijhawm thauj mus los. Nws cov cushioning thiab shock-absorbing muaj peev xwm ua rau nws yog ib qho kev xaiv zoo heev rau kev tiv thaiv cov khoom los ntawm kev puas tsuaj.
Kev lag luam kho mob:EVA ua lub luag haujlwm tseem ceeb hauv kev kho mob, uas nws yog siv los tsim ntau yam khoom siv xws li tubing, catheters, thiab cov cuab yeej phais. Nws tsis kam mus rau tshuaj lom neeg thiab yoog raws yog qhov zoo hauv kev siv tshuaj kho mob.
Electronics thiab marine industries:Hauv cov khoom siv hluav taws xob, EVA yog siv rau kev siv cua sov thiab suab rwb thaiv tsev. Nws cov khoom tiv thaiv thiab insulating ua rau nws muaj txiaj ntsig zoo hauv kev lag luam xa khoom, ua rau muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov khoom siv hluav taws xob.
Hnub ci vaj huam sib luag:Lub hnub ci kev lag luam tau txais txiaj ntsig los ntawm EVA cov khoom tiv thaiv, vim nws yog siv hauv cov hnub ci vaj huam sib luag los tiv thaiv lub hnub ci. EVA pab txhawb rau lub neej ntev thiab kev ua haujlwm ntawm lub hnub ci zog.
Adhesives thiab sealants:EVA cov khoom sib txuas ua rau nws tsim nyog rau kev tsim cov nplaum thiab cov sealants. EVA muaj cov khoom nplaum zoo, tshwj xeeb tshaj yog rau ntau yam ntaub ntawv xws li ntoo, ntawv, ntaub, thiab yas. Hauv kev tsim kho kev lag luam, EVA feem ntau yog siv los kaw cov kab nrib pleb, cov kab nrib pleb, lossis cov ces kaum, xws li thaum sib khi ntawm qhov rais thiab qhov rooj thav ntawv los yog muab tso rau hauv cov ntaub ntawv sealing.
Txog Peb
Luoyang Dema Ntshuam & Export Co., Ltd. aims muab cov khoom zoo, nqi-zoo rau lub ntiaj teb no factories, yas khoom manufacturers, thiab cov khoom distributors. Luoyang Dema Ntshuam & Export Co., Ltd. muab qhov zoo tshaj plaws PP, PE, PVC, PET, thiab ABS cov ntaub ntawv daws teeb meem rau cov khoom yas manufacturers, wholesalers, distributors, distributors, Hoobkas tswv, kev cob qhia, thiab lwm yam.
Yog tias koj tab tom nrhiav cov ntaub ntawv yas dav dav, thov koj xav tias dawb tau txais cov nqi tshiab thiab cov lus hais los ntawm Luoyang Dema Import & Export Co., Ltd. Pab pawg muag khoom yuav teb rau hauv 48 teev.