Redispersible polymer hmoov yog ib qho ntawm cov khoom siv feem ntau siv hauv kev tsim kho thiab lwm yam lag luam. Nws versatility, kev ua tau zoo thiab kev lag luam ua rau nws muaj kev xaiv nrov rau ntau daim ntawv thov. Txawm li cas los xij, nrog ntau txoj kev xaiv los ntawm, nws tuaj yeem nyuaj rau cov neeg siv los txheeb xyuas thiab xaiv cov khoom tsim nyog rau lawv cov kev xav tau. Hauv tsab xov xwm no, peb tham txog cov ntsiab lus tseem ceeb uas yuav tsum tau xav txog ua ntej xaiv cov hmoov polymer rov qab.
1. Nkag siab txog Redispersible Polymer Powders
Redispersible polymer hmoov yog cov hmoov qhuav tau los ntawm kev txau ntau yam polymer emulsions hauv cov kuab tshuaj organic tsis muaj zog thiab tom qab ntawd ziab hauv cov xwm txheej tshwj xeeb. Redispersible polymer hmoov yog tsim los ntawm cov khoom siv polymer puag, cov ntaub ntawv reactive, plasticizer thiab inorganic muab tub lim. Nws yog feem ntau siv los ua ib daim ntawv khi, zaj duab xis qub thiab cov thickener hauv ntau daim ntawv thov xws li cov cement thiab gypsum raws li cov ntaub ntawv, cov dej tsis zoo thiab cov tshuaj khib nyiab.
2. Kev sib xyaw ntawm redispersible polymer hmoov
Hauv paus, muaj pes tsawg leeg ntawm cov khoom siv rov ua dua tshiab polymer hmoov yog qhov tseem ceeb cuam tshuam rau cov khoom ntawm cov hmoov thiab nws qhov tsim nyog rau daim ntawv thov. Yog li ntawd, cov tshuaj muaj pes tsawg leeg ntawm cov polymer yuav tsum tau txiav txim siab ua ntej xaiv cov khoom. Feem ntau redispersible polymers yog raws li ethylene vinyl acetate (EVA) thiab vinyl acetate ethylene (VAE), uas muaj cov khoom sib txawv thiab cov txiaj ntsig.
EVA redispersible polymers yog qhov hloov tau yooj yim, txhim khu elasticity ntawm cov khoom kawg, thiab muab cov adhesion zoo thiab huab cua tsis kam. Ntawm qhov tod tes, VAE redispersible polymers muaj zog dua thiab dej tsis zoo dua li EVA polymers, ua rau lawv haum rau kev siv sab nraum zoov. Acrylic polymers muaj qib siab dua ntawm adhesion thiab compatibility nrog lwm cov ntaub ntawv hauv tsev.
3. Lub cev muaj zog ntawm redispersible polymer hmoov
Lub cev lub cev ntawm redispersible polymer hmoov yuav tsum tau nkag siab zoo ua ntej xaiv qhov tsim nyog. Cov khoom no muaj xws li particle loj tis, gloss, xim thiab bulk ntom ntawm cov hmoov. Cov yam ntxwv no cuam tshuam rau kev ua tau zoo, kev ua tau zoo thiab cov tsos ntawm cov khoom kawg.
Qhov loj me me ntawm cov khoom siv rov ua dua tshiab polymer hmoov yog qhov tseem ceeb vim nws txiav txim siab nws tus nqi ntawm dispersion rau hauv substrate. Ua tib zoo tswj cov particle loj thaum lub sij hawm tsim khoom yog qhov tseem ceeb los xyuas kom meej cov hmoov zoo ntawm lub cev. Qhov ntau ntom ntom ntawm cov hmoov muaj feem xyuam rau nws qhov chaw cia, thauj thiab tuav.
4. Kev siv tshuab
Cov txheej txheem xaiv rau redispersible polymer hmoov yuav tsum coj mus rau hauv tus account lub npaj daim ntawv thov technology. Txhua redispersible polymer hmoov hom muaj cov khoom sib txawv uas ua rau qee cov hmoov zoo haum rau cov kev siv tshwj xeeb tshaj li lwm tus. Piv txwv li, cov hmoov viscosity tsawg yog qhov zoo dua rau kev siv tshuaj tsuag, thaum cov hmoov viscosity siab yuav tsum tau siv tes troweling.
5. Compatibility ntawm redispersible polymer hmoov nrog rau lwm yam ntaub ntawv
Compatibility yog ib qho tseem ceeb rau kev txiav txim siab thaum xaiv qhov tsim nyog redispersible polymer hmoov. Ua ntej xaiv cov hmoov tshwj xeeb, nws yog ib qho tseem ceeb rau kev ntsuam xyuas nws cov kev sib raug zoo nrog lwm cov ntaub ntawv siv hauv cov khoom kawg, piv txwv li, cov hmoov xaiv yuav tsum sib txuas nrog cov cement thiab lwm yam binders.
6. Kev ua tau zoo
Cov khoom uas xav tau ntawm cov khoom kawg txiav txim siab xaiv qhov tsim nyog redispersible polymer hmoov. Nws yog ib qho tsim nyog los qhia txog lub cev thiab tshuaj lom neeg ntawm cov khoom siv rov ua dua tshiab ntawm cov hmoov polymer, nrog rau kev sib tshuam ntawm lub ntsej muag, pH, iav hloov pauv kub, thiab cov qauv ntawm elasticity.
Kev txheeb xyuas thiab xaiv cov khoom tsim nyog redispersible polymer hmoov yog txheej txheem tseem ceeb uas yuav tsum xav txog cov hmoov tshuaj muaj pes tsawg leeg, cov khoom siv lub cev, cov txheej txheem siv, kev sib raug zoo thiab kev ua haujlwm. Cov yam tseem ceeb uas yuav tsum tau txiav txim siab muaj xws li particle loj tis, bulk ntom thiab gloss. Thaum kawg, nws yog ib qho tseem ceeb los txheeb xyuas cov khoom tsim nyog rau daim ntawv thov, xws li elasticity, huab cua tsis kam, thiab kev sib raug zoo nrog lwm yam khoom siv. Los ntawm kev txiav txim siab txog cov xwm txheej no, cov neeg siv tuaj yeem xaiv cov hmoov polymer rov ua kom tau raws li lawv cov kev xav tau, muab kev ua haujlwm zoo, thiab txhawb nqa lawv lub hom phiaj tag nrho.
Post lub sij hawm: Aug-25-2023