Kev Txheeb Xyuas
Tsab ntawv no ua kev tshawb fawb txog kev ua haujlwm zoo tshaj plaws thiab kev siv cov ntaub ntawvcov tshuaj nplaumCov yam tseem ceeb uas cuam tshuam rau kev ua tau zoo ntawm cov sealant tau tshawb nrhiav los ntawm kev tshuaj xyuas cov khoom sib xyaw, cov yam ntxwv thiab cov cheeb tsam siv ntawm cov sealant. Kev tshawb fawb tsom mus rau kev xaiv thiab kev ua kom zoo dua ntawm cov nplaum, cov khoom siv thiab cov khoom ntxiv, nrog rau kev txhim kho cov txheej txheem tsim khoom. Cov txiaj ntsig tau qhia tias lub zog nplaum, kev tiv thaiv huab cua ntuj thiab kev tiv thaiv ib puag ncig ntawm cov sealant zoo tshaj plaws tau txhim kho zoo heev. Kev tshawb fawb no muab cov hauv paus theoretical thiab cov lus qhia ua tau zoo rau kev txhim kho kev ua tau zoo ntawm cov kua nplaum ntim khoom thiab kev tsim cov khoom tshiab, uas yog qhov tseem ceeb heev rau kev txhawb nqa kev txhim kho ntawm kev lag luam ntim khoom.
* * Cov Lus Tseem Ceeb * * Daim kab xev kaw; Lub zog sib txuas; Kev tiv taus huab cua ntuj; Kev ua tau zoo ib puag ncig; Cov txheej txheem tsim khoom; Kev txhim kho kev ua tau zoo
Kev Taw Qhia
Ua ib yam khoom tseem ceeb hauv kev lag luam ntim khoom niaj hnub no, kev ua tau zoo ntawm cov kua nplaum ntim khoom ncaj qha cuam tshuam rau qhov zoo ntawm kev ntim khoom thiab kev nyab xeeb thauj mus los. Nrog rau kev txhim kho sai ntawm e-lag luam thiab cov kev cai ib puag ncig uas nruj zuj zus, cov kev cai siab dua tau muab tso rau pem hauv ntej rau kev ua tau zoo ntawm cov kua nplaum ntim khoom. Lub hom phiaj ntawm txoj kev tshawb fawb no yog los txhim kho kev ua tau zoo ntawm cov sealant los ntawm kev ua kom zoo dua cov khoom sib xyaw thiab cov txheej txheem tsim khoom ntawm cov sealant kom tau raws li qhov xav tau ntawm kev ua lag luam.
Nyob rau xyoo tas los no, cov kws tshawb fawb hauv tsev thiab txawv teb chaws tau ua kev tshawb fawb ntau yam txog kev ntim kua nplaum. Smith et al. tau kawm txog cov teebmeem ntawm cov nplaum sib txawv rau kev ua haujlwm ntawm cov sealant, thaum Zhang pab neeg tau tsom mus rau kev tsim cov sealant uas zoo rau ib puag ncig. Txawm li cas los xij, kev tshawb fawb txog kev ua kom zoo tshaj plaws ntawm kev ua haujlwm ntawm cov sealant tseem tsis txaus. Tsab xov xwm no yuav pib los ntawm kev xaiv cov ntaub ntawv, kev ua kom zoo dua ntawm cov mis thiab kev txhim kho cov txheej txheem tsim khoom, thiab tshawb nrhiav cov hauv kev los txhim kho kev ua haujlwm ntawm cov kua nplaum.
I. Cov khoom sib xyaw thiab cov yam ntxwv ntawmkua nplaum ntim khoom
Cov sealant feem ntau muaj peb ntu: nplaum, substrate thiab additive. Cov nplaum yog cov khoom xyaw tseem ceeb uas txiav txim siab cov yam ntxwv ntawm cov sealant, thiab lawv feem ntau pom muaj nyob rau hauv acrylic, roj hmab thiab silicone. Lub substrate feem ntau yog polypropylene zaj duab xis lossis ntawv, thiab nws qhov tuab thiab kev kho qhov chaw yuav cuam tshuam rau cov khoom siv kho tshuab ntawm daim kab xev. Cov additives suav nrog plasticizers, fillers thiab antioxidants los txhim kho cov yam ntxwv tshwj xeeb ntawm daim kab xev.
Cov yam ntxwv ntawm cov sealant feem ntau suav nrog kev nplaum, kev nplaum pib, kev tuav kev nplaum, kev tiv thaiv rau huab cua ntuj thiab kev tiv thaiv ib puag ncig. Lub zog sib txuas txiav txim siab lub zog khi ntawm daim kab xev thiab cov nplaum, thiab yog qhov qhia tseem ceeb ntawm kev ua tau zoo ntawm cov sealant. Qhov viscosity pib cuam tshuam rau lub peev xwm nplaum pib ntawm daim kab xev, thaum qhov viscosity ntawm daim kab xev qhia txog nws qhov ruaj khov mus sij hawm ntev. Kev tiv thaiv rau huab cua ntuj suav nrog kev tiv thaiv kub siab, tiv thaiv kub qis thiab tiv thaiv dej noo. Kev tiv thaiv ib puag ncig tsom mus rau cov khoom uas lwj thiab tsis muaj tshuaj lom ntawm daim kab xev duct, uas ua tau raws li cov kev xav tau kev txhim kho ruaj khov ntawm cov ntaub ntawv ntim khoom niaj hnub.
II. Cov chaw siv rau cov sealant
Cov tshuaj nplaum siv dav hauv kev ntim khoom hauv ntau yam lag luam. Hauv kev xa khoom, cov tshuaj nplaum muaj zog heev yog siv los ua kom cov thawv hnyav thiab xyuas kom muaj kev nyab xeeb ntawm cov khoom hauv kev thauj mus los ntev. Kev ntim khoom lag luam hauv e-lag luam xav kom cov tshuaj nplaum muaj qhov zoo thaum pib thiab tuav cov nplaum kom daws tau qhov kev faib tawm thiab kev tuav ntau zaus. Hauv kev ntim khoom noj, nws yog qhov tsim nyog los siv cov tshuaj nplaum uas zoo rau ib puag ncig kom ntseeg tau tias cov khoom noj muaj kev nyab xeeb thiab kev huv.
Hauv cov chaw tshwj xeeb, kev siv cov sealant nyuaj dua. Piv txwv li, hauv kev thauj khoom txias, cov kua nplaum yuav tsum muaj kev tiv taus kub zoo heev; Hauv cov chaw khaws cia kub thiab noo noo siab, daim kab xev yuav tsum muaj kev tiv taus kub zoo. Tsis tas li ntawd, qee qhov kev lag luam tshwj xeeb xws li khoom siv hluav taws xob thiab kev ntim tshuaj muab cov kev xav tau siab dua rau kev tiv thaiv electrostatic thiab cov khoom tiv thaiv kab mob ntawm cov sealant. Cov kev xav tau ntau yam no tsav tsheb kev tsim kho tshiab thiab kev txhim kho ntawm cov thev naus laus zis sealant.
III. Kev tshawb fawb txog kev ua kom zoo dua ntawm kev ua haujlwm ntawm cov sealant
Yuav kom txhim kho kev ua tau zoo ntawm cov sealant, txoj kev tshawb fawb no saib peb yam ntawm kev xaiv cov khoom siv, kev tsim cov qauv zoo tshaj plaws thiab cov txheej txheem tsim khoom. Hauv kev xaiv cov nplaum, cov khoom ntawm peb yam khoom, acrylic, roj hmab thiab silicone, tau muab piv rau, thiab acrylic muaj qhov zoo dua hauv cov khoom zoo tshaj plaws. Kev ua tau zoo ntawm cov nplaum acrylic tau raug txhim kho ntxiv los ntawm kev kho qhov sib piv ntawm monomer thiab qhov hnyav molecular.
Qhov kev ua kom zoo dua ntawm cov substrates tsom mus rau qhov tuab thiab kev kho qhov chaw. Qhov kev sim qhia tau hais tias cov zaj duab xis polypropylene tuab 38μm ua tiav qhov sib npaug zoo tshaj plaws ntawm lub zog thiab tus nqi. Kev kho electrode ntawm qhov chaw ua rau lub zog ntawm cov substrate zoo dua thiab ua rau lub zog sib txuas nrog cov nplaum zoo dua. Cov tshuaj yas ntuj tau siv es tsis txhob siv cov khoom siv roj av ib txwm muaj, thiab nano-SiO2 tau ntxiv los txhim kho qhov tsis kam rau cua sov.
Kev txhim kho hauv cov txheej txheem tsim khoom suav nrog kev ua kom zoo dua ntawm txoj kev txheej thiab kev tswj hwm cov xwm txheej kho. Siv cov thev naus laus zis micro-gravure, cov txheej txheem sib xws ntawm cov nplaum tau pom, thiab qhov tuab tau tswj hwm ntawm 20 ± 2 μm. Kev tshawb fawb txog qhov kub thiab lub sijhawm kho tau qhia tias kev kho ntawm 80 ° C rau 3 feeb ua rau muaj kev ua tau zoo tshaj plaws. Vim yog cov kev ua kom zoo dua no, lub zog nplaum ntawm cov sealant tau nce ntxiv 30%, qhov kev tiv thaiv rau huab cua ntuj tau txhim kho ntau heev, thiab VOC emission tau txo qis 50%.
IV. COV LUS XAUS
Txoj kev tshawb fawb no tau txhim kho nws cov kev ua tau zoo los ntawm kev ua kom zoo dua qub ntawm cov khoom sib xyaw thiab cov txheej txheem tsim khoom ntawm cov sealant. Cov sealant zoo tshaj plaws tau mus txog qib ua tus thawj coj hauv kev lag luam hauv kev sib txuas, kev tiv thaiv huab cua ntuj thiab kev tiv thaiv ib puag ncig. Cov txiaj ntsig tshawb fawb muab lub hauv paus theoretical thiab kev taw qhia ua tau zoo rau kev txhim kho kev ua tau zoo ntawm cov sealants thiab kev tsim cov khoom tshiab, thiab muaj txiaj ntsig zoo rau kev txhawb nqa kev nce qib thev naus laus zis thiab kev txhim kho ruaj khov ntawm kev lag luam ntim khoom. Kev tshawb fawb yav tom ntej tuaj yeem tshawb nrhiav cov ntaub ntawv tshiab uas zoo rau ib puag ncig thiab cov txheej txheem tsim khoom ntse kom ua tau raws li cov kev cai tiv thaiv ib puag ncig thiab cov kev xav tau ntim khoom tus kheej.
Lub sijhawm tshaj tawm: Lub Ob Hlis-18-2025
