Pobzeb nplaum yog cov khoom siv tseem ceeb siv los khi cov vuas luaj ceramic, pob zeb thiab lwm yam khoom siv hauv tsev, thiab ua lub luag haujlwm tseem ceeb hauv kev tsim vaj tsev. Nyob rau hauv cov qauv ntawm cov pobzeb nplaum, RDP (Redispersible Polymer Powder) yog ib qho tseem ceeb ntxiv. Qhov sib ntxiv ntawm RDP tuaj yeem tsis tsuas yog txhim kho kev ua haujlwm ntawm cov nplaum, tab sis kuj txhim kho kev tsim kho thiab txhim kho kev sib raug zoo.
1. Txhim khu kev sib txuas
Ib qho ntawm cov haujlwm tseem ceeb ntawm RDP hauv cov nplais nplaum yog txhawm rau txhim kho kev sib raug zoo. Cov nplaum nplaum yuav tsum tiv taus cov tensile loj thiab shear rog, thiab RDP tuaj yeem txhim kho kev sib raug zoo ntawm cov nplaum. Tom qab RDP cov khoom sib xyaw nrog dej, lawv yuav tsim ib daim duab polymer uas npog qhov sib txuas. Cov yeeb yaj kiab no muaj kev sib raug zoo siab thiab ua kom yooj yim, thiab tuaj yeem ua haujlwm zoo ntawm cov vuas luaj ceramic rau cov substrate ruaj khov thiab tsis txhob thermal expansion. Kev poob los yog tawg los ntawm qhov txias shrinkage los yog sab nraud quab yuam.
2. Txhim kho kev tsim kho kev ua haujlwm
Kev tsim kho kev ua haujlwm ntawm cov nplais nplaum yog qhov tseem ceeb rau kev ua haujlwm ntawm cov neeg ua haujlwm tsim kho, tshwj xeeb tshaj yog nyob rau hauv kev tsim kho loj, qhov kev tsim kho thiab kev ua haujlwm zoo yog ncaj qha ntsig txog tus nqi thiab lub sijhawm ntawm qhov project. Qhov sib ntxiv ntawm RDP tuaj yeem txhim kho cov dej ntws thiab kev tsim kho ntawm cov pobzeb nplaum, ua rau cov nplaum nplaum ntau dua thaum sib xyaw thiab txo cov teeb meem kev tsim kho los ntawm kev sib xyaw tsis sib xws. Tsis tas li ntawd, RDP tseem tuaj yeem txuas ntxiv lub sijhawm qhib ntawm cov nplais nplaum nplaum, muab cov neeg ua haujlwm tsim kho ntau lub sijhawm los kho thiab ua haujlwm, txo cov teeb meem kev tsim kho los ntawm kev kho ntxov ntawm cov nplaum.
3. Txhim khu kev tawg thiab impermeability
Hauv cov pobzeb nplaum, tawg ua haujlwm thiab impermeability yog qhov tseem ceeb ntawm kev ua tau zoo. Ceramic vuas feem ntau ntsib cov teeb meem xws li qhov kub thiab txias hloov, hloov cov av noo, thiab dej nkag mus rau hauv ib puag ncig xws li phab ntsa sab nrauv, chav dej, thiab chav ua noj. Qhov sib ntxiv ntawm RDP tuaj yeem txhim kho qhov tawg tsis kam thiab impermeability ntawm ceramic pobzeb adhesives. Kev tsim ntawm cov yeeb yaj kiab polymer ua raws li qhov hloov pauv tsis zoo ntawm cov vuas thiab cov substrate, nqus cov kev ntxhov siab sab nraud thiab tiv thaiv cov kab nrib pleb. Tsis tas li ntawd, RDP's polymer zaj duab xis kuj muaj cov dej tsis zoo, uas tuaj yeem tiv thaiv kev nkag mus ntawm cov dej noo thiab tiv thaiv cov substrate los ntawm ya raws ya raws.
4. Txhim kho huab cua tsis kam thiab kav ntev
Thaum lub sij hawm siv mus ntev, cov nplais nplaum yuav tsum tau tiv thaiv ib puag ncig kev sim, xws li hluav taws xob ultraviolet, acid los nag yaig, alternation ntawm kub thiab txias, thiab lwm yam. Cov yam ntxwv no yuav muaj kev cuam tshuam rau lub zog ntawm cov nplaum. RDP tuaj yeem txhim kho huab cua tsis kam thiab ua haujlwm ntev ntawm cov nplais pobzeb nplaum. Tom qab cov nplaum raug kho, cov yeeb yaj kiab polymer tuaj yeem tiv taus hluav taws xob ultraviolet thiab txo qhov degradation los ntawm ultraviolet rays. Nws tuaj yeem tiv taus cov kua qaub thiab alkali yaig thiab txuas ntxiv lub neej kev pabcuam ntawm cov nplaum. Tsis tas li ntawd, RDP tseem tuaj yeem txhim kho cov nplaum tiv thaiv kom khov-thaw cycles, tso cai rau nws kom muaj kev ruaj ntseg hauv cov huab cua txias.
5. Txo qhov shrinkage thiab txhim kho kev yooj yim
Cov tsoos cement-raws li pobzeb adhesives yog qhov ua rau shrinkage thaum lub sijhawm kho, ua rau muaj kev ntxhov siab hauv cov txheej txheem sib txuas, uas tuaj yeem ua rau cov vuas poob los yog cov substrate puas. Qhov sib ntxiv ntawm RDP tuaj yeem txo qhov tshwm sim ntawm qhov shrinkage. Lub luag haujlwm ntawm RDP hauv cov nplaum yog zoo ib yam li cov yas yas. Nws tuaj yeem muab cov nplaum rau qee qhov kev hloov pauv yooj yim, txo kev ntxhov siab, thiab txhim kho qhov ruaj khov ntawm cov txheej txheem sib txuas, yog li tiv thaiv cov nyiaj tsis ua haujlwm vim qhov shrinkage.
6. Txo cov nqi siv thiab kev tiv thaiv ib puag ncig zoo
Txawm hais tias RDP, raws li kev ua tau zoo ntxiv, tuaj yeem ua rau tus nqi ntawm cov nplais nplaum, qhov kev txhim kho thiab kev tsim kho yooj yim uas nws coj tuaj yeem txo tus nqi tsim kho tag nrho. RDP tuaj yeem txo tus naj npawb ntawm cov khoom siv rov ua dua tshiab thiab cov khoom pov tseg, thaum txuas ntxiv lub neej kev pab cuam ntawm cov vuas luaj ceramic thiab txo cov nqi tu. Tsis tas li ntawd, RDP nws tus kheej yog cov khoom siv zoo ib puag ncig uas tsis muaj cov tshuaj tsis haum tshuaj organic (VOCs), tsis tso cov pa phem thaum siv thiab siv, thiab muaj kev nyab xeeb dua rau ib puag ncig thiab tib neeg kev noj qab haus huv.
RDP ua lub luag haujlwm tseem ceeb hauv cov nplaum nplaum. Nws muaj kev ua haujlwm tseem ceeb los ntawm kev txhim kho daim ntawv cog lus lub zog, txhim kho kev tsim kho kev ua haujlwm, txhim kho kev tawg thiab impermeability, txhim kho huab cua tsis kam thiab ua haujlwm ntev, txo qis shrinkage thiab txhim kho yooj. Txhim kho tag nrho qhov zoo ntawm cov nplais nplaum. Txawm hais tias qhov sib ntxiv ntawm RDP tuaj yeem ua rau cov nqi khoom nce ntxiv, kev txhim kho kev ua haujlwm thiab kev tiv thaiv ib puag ncig zoo nws coj los ua ib qho tseem ceeb thiab tseem ceeb ntxiv hauv kev tsim tsev niaj hnub.
Post lub sij hawm: Aug-27-2024