Putty hmoov yog siv dav hauv kev tsim kho thiab kho dua tshiab rau kev kho cov kab nrib pleb, txhaws qhov, thiab smoothing nto.Cellulose ethers feem ntau yog siv los ua binders hauv putty hmoov vim lawv muaj peev xwm txhim kho kev ua haujlwm, adhesion, thiab tuav dej.Txawm li cas los xij, xaiv qhov tseeb cellulose ethers rau cov hmoov putty tuaj yeem nyuaj vim muaj ntau yam kev xaiv muaj nyob hauv khw.Hauv tsab xov xwm no, peb yuav tham txog yuav ua li cas xaiv qhov tseeb cellulose ethers rau putty hmoov.

Cellulose Ethers yog dab tsi?

Cellulose ethers yog ib tsev neeg ntawm cov polymers uas tau los ntawm cellulose, uas yog ib tug natural polymer muaj nyob rau hauv cov nroj tsuag.Lawv yog cov dej-soluble thiab muaj cov khoom ua yeeb yaj kiab zoo heev, uas ua rau lawv zoo tagnrho cov ntaub ntawv rau cov hmoov putty.Muaj ntau ntau hom cellulose ethers muaj, txhua tus nrog nws cov khoom tshwj xeeb thiab cov txiaj ntsig.

Hom Cellulose Ethers

1. Methyl Cellulose (MC)

Methyl cellulose yog ib qho uas tsis yog-ionic cellulose ether uas tau siv dav hauv cov hmoov putty vim nws cov dej tuav tau zoo heev.Nws tuaj yeem txhim kho kev ua haujlwm ntawm cov hmoov putty, ua kom yooj yim rau kev thov thiab sib kis.Methyl cellulose kuj tiv taus cov kab mob loj hlob, ua rau nws zoo tagnrho rau siv nyob rau hauv qhov chaw ntub dej.

2. Hydroxypropyl Methyl Cellulose (HPMC)

Hydroxypropyl methyl cellulose yog hloov kho cellulose ether uas feem ntau siv rau hauv cov hmoov putty vim nws cov khoom zoo heev adhesion.Nws tseem tuaj yeem txhim kho cov dej tuav thiab ua haujlwm ntawm cov hmoov putty, ua kom yooj yim rau kev thov thiab sib kis.HPMC kuj tseem tiv taus cov kab mob loj hlob thiab muaj thermal stability zoo.

3. Hydroxyethyl Cellulose (HEC)

Hydroxyethyl cellulose yog ib qho uas tsis yog-ionic cellulose ether uas feem ntau siv hauv cov hmoov putty vim nws cov khoom zoo heev thickening.Nws tseem tuaj yeem txhim kho cov dej tuav thiab ua haujlwm ntawm cov hmoov putty, ua kom yooj yim rau kev thov thiab sib kis.HEC kuj tseem tiv taus cov kab mob loj hlob thiab muaj thermal stability zoo.

4. Carboxymethyl Cellulose (CMC)

Carboxymethyl cellulose yog hloov kho cellulose ether uas feem ntau siv hauv cov hmoov putty vim nws cov dej tuav tau zoo heev.Nws tseem tuaj yeem txhim kho kev ua haujlwm ntawm cov hmoov putty, ua kom yooj yim rau kev thov thiab sib kis.CMC tseem tiv taus cov kab mob loj hlob thiab muaj thermal stability zoo.

Xaiv qhov tseeb Cellulose Ethers rau Putty Hmoov

Thaum xaiv qhov tseeb cellulose ethers rau putty hmoov, muaj ntau yam uas koj yuav tsum xav txog.Cov no suav nrog:

1. Txoj kev thov

Daim ntawv thov txoj kev uas koj yuav siv rau cov hmoov putty yuav txiav txim seb hom cellulose ether uas koj yuav tsum tau siv.Piv txwv li, yog tias koj yuav txau cov hmoov putty, ces koj yuav tsum siv cellulose ether uas muaj cov dej tuav tau zoo, xws li methyl cellulose.Yog hais tias koj yuav troweling cov hmoov putty, ces koj yuav tsum siv ib tug cellulose ether uas muaj zoo adhesion zog, xws li HPMC.

2. Hom Substrate

Hom substrate uas koj yuav tau thov cov hmoov putty kuj yuav txiav txim seb hom cellulose ether uas koj yuav tsum tau siv.Piv txwv li, yog tias koj yuav tau siv cov hmoov putty rau cov ntxeem tau substrate, xws li pob zeb lossis plaster, ces koj yuav tsum siv cellulose ether uas muaj cov dej tuav tau zoo, xws li methyl cellulose.Yog tias koj yuav siv cov hmoov putty rau cov tsis ntxeem tau substrate, xws li hlau lossis iav, ces koj yuav tsum siv cov cellulose ether uas muaj cov khoom adhesion zoo, xws li HPMC.

3. Desired Properties

Cov khoom xav tau ntawm cov hmoov putty kuj tseem txiav txim siab hom cellulose ether uas koj yuav tsum siv.Piv txwv li, yog tias koj xav kom cov hmoov putty muaj cov dej tuav tau zoo, ces koj yuav tsum siv cov cellulose ether uas muaj cov dej tuav tau zoo, xws li methyl cellulose.Yog tias koj xav tau cov hmoov putty kom muaj cov khoom zoo adhesion, ces koj yuav tsum siv cellulose ether uas muaj cov khoom adhesion zoo, xws li HPMC.

4. Ib puag ncig tej yam kev mob

Cov xwm txheej ib puag ncig uas yuav siv cov hmoov putty kuj yuav txiav txim siab hom cellulose ether uas koj yuav tsum siv.Piv txwv li, yog tias cov hmoov putty yuav siv rau hauv qhov chaw ntub dej, ces koj yuav tsum siv cov cellulose ether uas tiv taus cov kab mob loj hlob, xws li methyl cellulose lossis HPMC.Yog tias cov hmoov putty yuav siv rau hauv qhov chaw kub, ces koj yuav tsum siv cellulose ether uas muaj thermal stability zoo, xws li HEC lossis CMC.

Xaus

Xaiv qhov tseeb cellulose ethers rau putty hmoov yog qhov tseem ceeb heev kom ua tiav cov khoom xav tau thiab kev ua tau zoo ntawm cov khoom.Thaum xaiv qhov tseeb cellulose ether, koj yuav tsum xav txog yam xws li daim ntawv thov, hom substrate, yam khoom uas xav tau, thiab ib puag ncig.Los ntawm kev xaiv cov cellulose ether uas tsim nyog, koj tuaj yeem xyuas kom meej tias koj cov hmoov putty muaj kev ua haujlwm zoo, kev ua haujlwm zoo, thiab cov khoom tuav dej, ua rau nws zoo tagnrho rau kev kho cov kab nrib pleb, txhaws qhov, thiab smoothing nto hauv kev tsim kho thiab kho dua tshiab.