1 Taw qhia
Cellulose ether (MC) tau siv dav hauv lub tsev kev lag luam thiab siv ntau tus nqi. Nws tuaj yeem siv los ua tus retarder, dej tswjfwm tus neeg saib xyuas, thickener thiab nplaum. Hauv kev sib xyaw ua ke qhuav, phab ntsa sab nraud, cov tshuab hluav taws xob ruaj khov, dej sib xyaw ua ke, cov pa dej sib xyaw ua ke, cov khoom siv dej sib xyaw ua ke, cov khoom siv caulking thiab lwm yam khoom siv, Cellulose muaj kev hais ua ke ua lub luag haujlwm tseem ceeb. Cellulose ether muaj qhov tseem ceeb uas cuam tshuam rau cov dej khaws cia, dej xav tau, cohesation thiab kev tsim kho ntawm cov kab culture.
Muaj ntau yam ntau hom thiab cov specifications ntawm cov neeg hais ua cellulose. Feem ntau siv cov kws kho cellulose hauv kev ua haujlwm cov ntaub ntawv hauv tsev muaj xws li HEC, CMC, MHEC, thiab lwm yam, uas siv nyob rau hauv cov tshuab cug sib sau raws li lawv cov yam ntxwv. Qee tus neeg tau ua cov kev tshawb fawb txog qhov cuam tshuam ntawm ntau hom thiab cov sib txawv ntawm cov cellulose ither rau ntawm cov xis collftion system. Kab lus no qhia txog qhov no thiab piav qhia yuav ua li cas xaiv ntau hom sib txawv thiab tshwj xeeb ntawm cellulose muaj cov neeg muaj cai hais txog cov khoom siv txawv.
2 Cov yam ntxwv ua haujlwm ntawm cellulose ether hauv cakes cug
Raws li ib qho tseem ceeb admixture nyob rau hauv qhuav hmoov cug, cellulose ether muaj ntau lub zog nyob rau hauv colled. Lub luag haujlwm tseem ceeb tshaj plaws ntawm cellulose ether hauv cement cug yog los khaws dej thiab thicken. Ib qho ntxiv, vim nws kev sib cuam tshuam nrog cov cement system, nws tuaj yeem ua ib qho chaw tso pa, thiab txhim kho lub zog, thiab txhim kho lub zog ntawm lub zog.
Qhov tseem ceeb tshaj plaws ntawm cellulose ether hauv colf yog dej khaws cia. Cellulose ether yog siv los ua ib qho tseem ceeb admixture nyob rau yuav luag txhua yam khoom siv cug, feem ntau yog vim nws cov dej khaws cia. Feem ntau hais lus, cov dej ua kom rov qab ntawm cellulose ether yog cuam tshuam nrog nws viscosity, ntxiv qhov ntau thiab particle loj.
Cellulose ether yog siv los ua cov tuab, thiab nws cov nyhuv tuab, particle, particigity thiab kev hloov kho qib ntawm cellulose ether. Feem ntau hais lus, qib siab siab dua ntawm etherification thiab viscosity ntawm cellulose ether, cov me me cov lus me me, cov nyhuv ntau dua. Los kho cov yam ntxwv saum toj no ntawm MC, tshuaj khib tau ua tiav qhov tsim nyog los tiv thaiv kev ua tau zoo thiab qhov zoo tshaj viscosity.
Nyob rau hauv lub cellulose ether, kev qhia txog cov pab pawg alkyl txo lub zog ethoous muaj ether etraining cuam tshuam rau cov cua cug. Qhia cov pa npuas tsim kom haum rau hauv lub tshuaj khib nyiab txhim kho kev tsim kho ntawm lub tshuaj khib vim tias "npas cuam tshuam" ntawm cov pa npuas. Tib lub sijhawm, cov lus qhia ntawm cov npuas huab cua nce cov zis ntawm cov tshuaj khib. Ntawm chav kawm, tus nqi ntawm huab cua-nkag yuav tsum tau tswj hwm. Cov huab cua ntau dhau yuav muaj qhov tsis zoo ntawm lub zog ntawm lub tshuaj khib, vim tias cov roj cua ua npuas, vim hais tias cov phub phub bubles huab cua yuav muaj teeb meem.
2.4 Cellulose ether yuav ncua cov txheej txheem kev ua haujlwm ntawm cov cement, tab sis lub sij hawm cov nyhuv zoo heev tsis zoo rau cov cheeb tsam txias. Thaum xaiv cellulose ether, cov khoom tsim nyog yuav tsum raug xaiv raws li qhov xwm txheej tshwj xeeb. Cov nyhuv retarding ntawm cellulose ether feem ntau tsuas yog txuas nrog kev nce ntawm nws txoj kev nce qib, kev hloov kho degree thiab viscosity.
Tsis tas li ntawd, cellulose ether, uas yog ntev-saw hlau polymer, raws li kev ua tiav ntawm cov cement ntawm kev tswj hwm ntawm cov slurry.
2.2 Cov khoom ntawm cellulose ether hauv cug tsuas yog suav nrog lub sijhawm, thiab lwm yam ntawm cov yam ntxwv ntawm MC nws tus kheej, yog: viscosity, Kev ruaj khov, cov ntsiab lus ntawm cov khoom xyaw nquag (Qib ntawm kev hloov kho, cov ntsiab lus ether nrog nws tus yam ntxwv uas tuaj yeem muab kev tsim nyog yuav tsum yog Xaiv raws li cov kev xav tau tshwj xeeb ntawm cov khoom lag luam cug tshwj xeeb rau qee yam kev ua tau zoo.
3 yam ntxwv ntawm cellulose ether
Feem ntau hais lus, cov lus qhia cov khoom tau muab los ntawm Cellulose Ether cov ntsiab lus, cov ntsiab lus hauv qab no, cov ntsiab lus noo noo, thiab lwm yam Cov ntsuas kev ua tau zoo Ib feem ntawm lub luag haujlwm ntawm cellulose ether, tab sis thaum sib piv cov tshuaj ether, lwm yam tshuaj lom neeg, cov ntsiab lus ntawm Nacl, thiab DS tus nqi yuav tsum tau tshuaj xyuas.
3.1 Viscosity ntawm cellulose ether
Lub viscosity ntawm cellulose cuam tshuam rau nws cov dej khaws cia, thickening, nrawm thiab lwm yam. Yog li ntawd, nws yog qhov ntsuas tseem ceeb rau kev tshuaj xyuas thiab xaiv Cellulose ether.
Ua ntej sib tham txog viscospose ntawm cellulose ntawm cellulose ntawm cellulose ntawm cov txheej txheem feem ntau ntawm cov viscosure ntawm celluligs ntawm cellulation ntawm celluligity ntawm cellfield, höppler, thiab kev siv viscepler, thiab kev siv viscepler, thiab sib hloov viscometer, thiab kev siv viscepler, thiab kev siv viscepler, thiab sib hloov mus rau vis Cov cuab yeej siv, kev daws teeb meem thiab kev sim ib puag ncig uas siv los ntawm plaub txoj kev sib txawv, yog li cov kev tshwm sim ntawm tib lub mc tov tshuaj ntsuam xyuas los ntawm plaub txoj kev kuj sib txawv heev. Txawm hais tias rau tib txoj kev daws teeb meem, siv tib txoj kev, kev sim ua nyob rau hauv cov kev sib txawv ib puag ncig, lub viscosity
Cov txiaj ntsig kuj sib txawv. Yog li ntawd, thaum piav qhia cov visculose ether, nws yog ib qho tsim nyog los qhia seb txoj kev siv tshuaj, kev siv hluav taws xob, kev sim ntsuas kub thiab av noo thiab lwm yam chaw puag ncig. Tus nqi viscosity no muaj txiaj ntsig zoo. Nws yog lub ntsiab lus tau hais meej "dab tsi yog viscosity ntawm ib qho MC".
3.2 Khoom Muag Khoom Ruaj Ntseg ntawm Cellulose ether
Cov kws hais ua cellulose tau paub tias yuav tsum tau tawm tsam los ntawm cellulosic pwm. Thaum cov fungus yaig erodes cellulose ether, nws thawj zaug tawm tsam ib chav tsis muaj kev tsis ncaj ncees hauv lub cellulose ether. Raws li txoj kab linear, ib zaug cov chav dej qab zib tau raug rhuav tshem, tag nrho cov molecular saw tawg, thiab cov khoom viscosity yuav poob qis. Tom qab cov dej qab zib yog lub qhov dej, cov pwm yuav tsis yooj yim corrode molecular. Yog li ntawd, qib siab dua ntawm Eretation hloov chaw (DS nqi) ntawm cellulose ether, nws muaj kev ruaj ntseg etability yuav yog.
3.3 Cov ntsiab lus sib xyaw ua cov ntsiab lus ntawm cellulose ether
Lub siab dua cov ntsiab lus ntawm cov khoom xyaw ua haujlwm hauv cellulose hauv cellulose hauv cellulose hauv cov khoom lag luam, kom cov txiaj ntsig zoo dua tuaj yeem ua tiav nrog tib qho kev siv tshuaj. Cov khoom siv tau zoo hauv cellulose ether yog cellulose organic. Yog li ntawd, thaum tshuaj xyuas cov qauv cov khoom siv tau zoo ntawm cellulose ether, nws tuaj yeem tsis ncaj qha los ntawm cov hmoov tshauv tom qab kev kho dua.
3.4 NACL cov ntsiab lus hauv cellulose ether
Nacl yog ib qho kev tsis muaj txiaj ntsig los ntawm cov khoom lag luam ether, uas feem ntau yuav tsum tau muab tshem tawm los ntawm ntau yam ntxuav, thiab ntau zaus, tsawg nacl tseem. Nacl yog qhov muaj kev phom sij zoo rau kev xeb ntawm cov hlau nplaum thiab hlau xaim mesh. Yog li ntawd, tab sis kev ntxuav cov dej phwj tuaj rau ntau zaus tej zaum yuav nce tus nqi, thaum xaiv cov khoom siv NAcl qis dua.
4 cov qauv ntawm xaiv cellulose ether rau cov khoom lag luam txawv
Thaum xaiv cellulose ether rau cug cov tshuaj cug, ua ntej ntawm kev piav qhia ntawm phau ntawv txhais lus, Qib ntawm cov ntsiab lus cov ntsiab lus, thiab lwm yam Cov ntsiab cai
4.1 plhaub plaster
Siv lub plhaw cug ntawm daim plastering nyias ua ib qho piv txwv, txij li lub txheej txheem sab nraud ncaj qha rau cov neeg sab nraud, yog li cov dej rov qab mus dua. Tshwj xeeb thaum kev tsim kho thaum lub caij ntuj sov, nws yuav tsum tau tias lub tshuaj khib yuav zoo dua khaws cov dej noo ntawm cov dej sov siab. Nws yuav tsum xaiv MC nrog lub zog dej siab khaws cia, uas tuaj yeem raug txiav txim siab txiav txim siab los ntawm peb yam: Viscosity loj, thiab ntxiv qhov nyiaj. Feem ntau hais lus, raws li tib qho kev mob, xaiv MC nrog cov viscosity ntau dua, thiab xav txog qhov yuav tsum tau ua haujlwm, lub viscosity yuav tsum tsis txhob siab dhau. Yog li, cov MC raug xaiv yuav tsum muaj dej siab dua retention tus nqi thiab tsawg viscosity. Ntawm MC cov khoom lag luam, MH60001P6 thiab lwm yam tuaj yeem pom zoo rau cov txheej txheem plastering ntawm cov plasters nyias.
4.2 MAAs raws plastering CUG
Plastering coprum yuav tsum muaj kev sib xyaw zoo ntawm cug tshuaj khib, thiab nws yooj yim dua los ua kom covyees plaster. Nyob rau tib lub sijhawm, nws yuav tsum tau zoo anti-sagging kev ua tau zoo, muaj peev xwm siab, muaj zog thiab ua haujlwm. Yog li ntawd, MC nrog qis dua viscosity, nrawm dua thiab xwm txheej kev txhim kho (me me) hauv coll cug yog xaiv.
Hauv kev tsim kho cov nplais nplaum, txhawm rau kom muaj kev nyab xeeb thiab ua haujlwm tau zoo dua qub, thiab tib lub sijhawm yuav tsum tau txais kev sib raug zoo ntev dua ntawm cov txheej txheem sib raug zoo thiab cov nplais Cov. Yog li ntawd, pobzeb cov nplaum muaj cov kev xav tau zoo rau MC. Txawm li cas los xij, MC feem ntau muaj cov ntsiab lus tseem ceeb hauv cov nplais nplaum. Thaum xaiv MC, kom tau raws li qhov yuav tsum tau qhib lub sijhawm qhib sijhawm ntev dua, thiab cov dej khaws khoom kom muaj qhov tsim nyog, ntxiv cov nyiaj thiab qhov loj me. Txhawm rau kom tau raws li qhov zoo los tiv thaiv kev ua tiav, cov nyhuv tuab ntawm MC yog qhov zoo, yog li lub tshuaj khib tau muaj qee yam kev xav tau ntawm viscosity, degrees.
4.4 Yus Tus Kheej Kev Tshuaj Khov Av
Tus kheej-leveling cug ua haujlwm muaj cov kev ua tau zoo ntawm lub tshuaj khib, yog li nws yog haum rau xaiv cov khoom lag luam qis ether ether. Txij li thaum tus kheej txoj kev vam meej yuav tsum tau hais tias tusyees loj heev cug tuaj yeem yog qhov yuav tsum tau ua rau hauv av, muaj kev lom zem thiab cov dej tsis muaj zog, yog li cov dej muaj ntau. Txhawm rau kom tsis txhob los ntshav, mc yuav tsum tswj kav dej tuav ntawm cov nplaim thiab muab viscosity los tiv thaiv sedimentation.
4.5 MASON TSHUAB MASON TSHUAB
Vim tias Masonry collport ncaj qha rau cov npoo ntawm masonry, nws feem ntau yog ib txheej tuab-txheej. Lub tshuaj khib nyiab yuav tsum muaj cov haujlwm ua haujlwm siab thiab dej ua kom muaj zog nrog Masonry, txhim kho kev ua haujlwm, thiab nce kev ua haujlwm. Yog li, tus xaiv MC yuav tsum muaj peev xwm pab tau lub tshuaj khib kom txhim kho cov kev ua tau zoo saum toj no, thiab cov visculose ntawm cellulose yuav tsum tsis txhob siab dhau.
4.6 Rwb thaiv tsev slurry
Txij li cov thermal rwb thaiv tsev slurry yog tsuas yog siv los ntawm txhais tes, nws yog qhov yuav tsum tau muab tshuaj khib zoo ua haujlwm, kev ua haujlwm zoo thiab dej zoo heev. MC yuav tsum muaj cov yam ntxwv ntawm viscosity siab thiab huab cua siab.
5 lub ntsiab lus
Cov haujlwm ntawm cellulose hauv colle cap yog dej cia, qeeb thiab txhim kho ntawm tensile bond zog, thiab lwm yam.
Lub sijhawm Post: Jan-30-2023