MHEC siv hauv kev tsim kho

1 kev taw qhia

Cellulose ether MHEC hauvkev tsim khokev lag luam cov ntaub ntawv hauv tsev muaj ntau yam kev siv, ntau qhov ntau, tuaj yeem siv los ua ib qho retarder, dej tuav tus neeg sawv cev, thickener thiab nplaum.Cellulose ether MHEC plays lub luag haujlwm tseem ceeb hauv cov khoom sib xyaw qhuav zoo tib yam, sab nrauv phab ntsa rwb thaiv tsev mortar, tus kheej-leveling mortar, ceramic pobzeb binder, high-performance tsev putty, anti-crack sab hauv thiab sab nrauv phab ntsa putty, waterproof qhuav mix mortar, plaster plaster, caulking agent thiab lwm yam ntaub ntawv.Cellulose ether MHEC muaj ib qho tseem ceeb ntawm cov dej tuav, dej xav tau, adhesion, retardation thiab kev tsim kho ntawm mortar system.

Muaj ntau ntau hom thiab specifications ntawmCellulose ether MHEC, Cellulose etherfeem ntau siv hauv thaj chaw ntawm cov khoom siv hauv tsev nrog rau HEC,MHEC, CMC, PAC,MHPC thiab lwm yam, raws li lawv lub luag hauj lwm yam ntxwv siv nyob rau hauv txawv mortar systems. Qee tus neeg tau kawm txog kev cuam tshuam ntawm ntau hom thiab ntau npaum li cas ntawmCellulose ether MHEC ntawm cement mortar system. Nyob rau hauv daim ntawv no, yuav ua li cas xaiv ntau yam thiab specifications ntawmCellulose ether MHEC nyob rau hauv sib txawv mortar khoom yog tham.

2 Cellulose ether MHEC hauv cov cement mortar muaj nuj nqi

Raws li ib qho tseem ceeb admixture nyob rau hauv qhuav mortar,Cellulose ether MHEC muaj ntau yam haujlwm hauv mortar.Cellulose ether MHEC nyob rau hauv cov cement mortar yog lub luag haujlwm tseem ceeb tshaj plaws ntawm kev tuav dej thiab thickening, ntxiv rau, vim tias nws cuam tshuam nrog cov cement system, tseem yuav ua lub luag haujlwm pabcuam ntawm huab cua induction, ncua sijhawm, txhim kho tensile bonding zog.

Cov khoom tseem ceeb tshaj plaws ntawmCellulose ether MHEC hauv mortar yog kev tuav dej.Cellulose ether MHEC raws li ib qho tseem ceeb admixture nyob rau hauv yuav luag tag nrho cov khoom mortar, lub ntsiab siv ntawm nws cov dej tuav. Feem ntau hais lus, kev tuav dej ntawmCellulose ether MHEC muaj feem xyuam rau nws cov viscosity, ntau npaum li cas thiab particle loj.

Cellulose ether MHEC Raws li ib tug thickener, nws cov nyhuv thickening muaj feem xyuam rau qib ntawm etherification ntawmCellulose ether MHEC, particle loj, viscosity thiab degree ntawm kev hloov kho. Feem ntau, qhov siab dua qhov degree ntawm etherification thiab viscosity ntawmCellulose ether MHEC, qhov me me, qhov pom tseeb ntawm cov nyhuv thickening. Los ntawm kev kho cov yam ntxwv saum toj no ntawmMHEC, mortar tuaj yeem ua tiav qhov tsim nyog los tiv thaiv kev ua haujlwm ntsug thiab qhov viscosity zoo tshaj plaws.

In Cellulose ether MHEC, kev taw qhia ntawm pab pawg alkyl txo lub zog saum npoo ntawm cov tshuaj aqueous uas muajCellulose ether MHEC, yog li ntawdCellulose ether MHEC muaj cov nyhuv ntawm engassing cement mortar. Vim lub pob nyhuv ntawm npuas, kev tsim kho kev ua haujlwm ntawm mortar yog txhim kho, thiab qhov tso zis ntawm mortar yog nce los ntawm kev qhia ntawm npuas. Ntawm chav kawm, huab cua kom tsawg yuav tsum tau tswj. Kev nqus cua ntau dhau yuav ua rau muaj kev cuam tshuam tsis zoo rau lub zog ntawm mortar, vim tias cov npuas tsis zoo yuav raug qhia.

2.1Cellulose ether MHEC yuav ncua cov txheej txheem hydration ntawm cov cement, yog li ua kom qeeb ntawm qhov chaw thiab cov txheej txheem hardening ntawm cov cement, thiab txuas ntxiv ua kom lub sijhawm qhib ntawm mortar, tab sis cov nyhuv no tsis zoo rau mortar hauv cov chaw txias. Hauv kev xaiv ntawmCellulose ether MHEC, yuav tsum ua raws li qhov xwm txheej tshwj xeeb ntawm kev xaiv cov khoom tsim nyog. Cov nyhuv retarding ntawmCellulose ether MHEC Feem ntau yog ncua ntev nrog kev txhim kho ntawm nws cov etherification degree, hloov kho degree thiab viscosity.

Ntxiv rau,Cellulose ether MHEC Raws li cov khoom siv polymer ntev, tom qab koom nrog cov cement system, nyob rau hauv qhov chaw ntawm kev tswj cov slurry ya raws, tuaj yeem txhim kho cov txiaj ntsig kev ua haujlwm nrog cov substrate.

2.2 Properties ntawmCellulose ether MHEC nyob rau hauv mortar mas muaj xws li: dej tuav, thickening, ncua sij hawm teem caij, gas permeability thiab txhim kho tensile bonding zog, thiab lwm yam. Cov khoom uas hais los saum no yog reflected nyob rau hauv cov yam ntxwv ntawmMHEC nws tus kheej, uas yog, viscosity, stability, active tivthaiv cov ntsiab lus (ntau ntxiv), etherification hloov degree thiab nws cov uniformity, hloov kho degree thiab teeb meem tshuaj cov ntsiab lus, thiab lwm yam. Yog li ntawd, nyob rau hauv kev xaiv ntawmMHEC, Cellulose ether MHEC nrog nws tus kheej cov yam ntxwv tuaj yeem muab kev ua tau zoo tsim nyog yuav tsum raug xaiv raws li cov kev cai tshwj xeeb ntawm cov khoom siv tshuaj khib rau qee qhov kev ua tau zoo.

3. Cov yam ntxwv ntawmCellulose ether MHEC

Feem ntau hais lus, cov lus qhia cov khoom tau muab los ntawmCellulose ether MHEC cov tuam txhab lag luam yuav muaj cov ntsuas hauv qab no: cov tsos, viscosity, pab pawg hloov pauv qib, fineness, cov ntsiab lus zoo (purity), cov ntsiab lus noo noo, pom zoo teb thiab ntau npaum li cas. Cov ntsuas kev ua tau zoo no tuaj yeem cuam tshuam ib feem ntawm lub luag haujlwm ntawmCellulose ether MHEC, tab sis nyob rau hauv kev sib piv thiab kev xaiv ntawmCellulose ether MHEC, kuj yuav tsum tau tshuaj xyuas nws cov tshuaj muaj pes tsawg leeg, qib kev hloov kho, qib ntawm etherification, NaCl cov ntsiab lus, DS tus nqi thiab lwm yam.

NojKimacell MHECyog MH60M cov khoom specification piv txwv. Ua ntej, MH qhia tias muaj pes tsawg leeg yog methyl hydroxyethylCellulose ether MHEC, qhov viscosity (Hoppler txoj kev txiav txim siab) yog 60000 Mpa. s ,ua. Tsis tas li ntawd, ntxiv rau cov lus piav qhia ntawm cov khoom zoo li, viscosity, particle loj, muaj cov ntsuas hauv qab no: tshuaj muaj pes tsawg leeg rau methyl hydroxyethylCellulose ether MHEC, tom qab kev hloov kho qis qis; Qib nruab nrab ntawm etherification; Cov dej noo ntawm 6% lossis tsawg dua; NaCl cov ntsiab lus ntawm 1.5% lossis tsawg dua; Cov ntsiab lus muaj txiaj ntsig zoo> 92.5%, xoob ntom 300 g / L thiab lwm yam.

3.1Cellulose ether MHEC viscosity

Lub viscosity ntawmCellulose ether MHEC cuam ​​tshuam nws cov dej tuav, thickening, retarding thiab lwm yam, yog li ntawd, nws yog ib qho tseem ceeb qhia txog kev ntsuam xyuas thiab kev xaiv ntawmCellulose ether MHEC.

Ua ntej sib tham txog viscosity ntawmCellulose ether MHEC, nws yuav tsum tau muab sau tseg tias muaj plaub feem ntau siv viscosity xeem txoj kevCellulose ether MHEC: Brookfield, Hakke, Hoppler thiab rotary viscometer method. Cov twj paj nruag, qhov concentration ntawm kev daws thiab kev sim ib puag ncig siv los ntawm plaub txoj kev sib txawv, yog li cov txiaj ntsig ntawm tib yamMHEC tshuaj ntsuam xyuas los ntawm plaub txoj kev kuj muaj ntau yam. Txawm tias tib txoj kev daws teeb meem, siv tib txoj kev, nyob rau hauv ib puag ncig sib txawv, viscosity

Cov txiaj ntsig kuj txawv. Yog li ntawd, thaum piav txog viscosity ntawm aCellulose ether MHEC, nws yog ib qho tsim nyog los qhia seb hom kev sim, kev daws teeb meem, rotor, ceev, ntsuas kub thiab av noo thiab lwm yam kev mob ib puag ncig tib lub sijhawm, tus nqi viscosity yog qhov tseem ceeb. Tsuas yog hais tias, “Dab tsi yog qhov viscosity ntawm ib qhoMHEC?”

Nws tsis tsim nyog.

NojKimacell MHEC khoom MH100M ua piv txwv. Nws tau taw qhia nyob rau hauv phau ntawv qhia khoom uas "tus nqi viscosity txiav txim los ntawm Hoppler txoj kev yog 100000 Mpa.s". Raws li kev sib raug zoo, cov kev qhia tshwj xeeb kuj muab tias "Brookua field RV, 20 RPM, 1.0%, 20℃,20 ib°GH, qhov ntsuas viscosity tus nqi yog 4100 ~ 5500 Mpa. s".

3.2 Khoom stability ntawmCellulose ether MHEC

Cellulose ether MHEC paub tias yuav raug cuam tshuam los ntawm cellulose mildew. Pwm nyob rau hauv erosion ntawmCellulose ether MHEC, thawj qhov kev tawm tsam tsis yog etherizedCellulose ether MHEC Glucose unit, raws li ib tug ncaj saw compound, thaum lub qab zib chav tsev raug rhuav tshem, tag nrho cov molecular saw raug txiav, viscosity ntawm cov khoom yuav poob sharply. Tom qab cov piam thaj yog etherified, cov pwm tsis yooj yim rau erode cov saw molecular, yog li ntawd, qhov siab dua qhov etherification hloov qib (DS tus nqi) ntawmCellulose ether MHEC, qhov siab dua nws stability yuav.

nojKimacell MHEC khoom MH100M Piv txwv li, cov khoom specification qhia meej tias tus nqi DS yog 1.70 (rau cov dej-solubleMHEC, DS tus nqi tsawg dua 2), uas qhia tau hais tias cov khoom muaj kev ruaj ntseg ntawm cov khoom.

3.3 Active tivthaiv cov ntsiab lus ntawmCellulose ether MHEC

Qhov siab dua cov ntsiab lus ntawm active Cheebtsam nyob rau hauvCellulose ether MHEC, tus nqi siab dua qhov kev ua tau zoo ntawm cov khoom, thiaj li ua tiav cov txiaj ntsig zoo nyob rau hauv tib qhov ntau npaum li cas. Cov yam ntxwv zoo ntawmCellulose ether MHEC is Cellulose ether MHEC molecule, uas yog ib qho khoom siv organic, yog li thaum kuaj xyuas cov ntsiab lus zoo ntawm cov tshuajCellulose ether MHEC, nws tuaj yeem cuam tshuam ncaj qha los ntawm tus nqi tshauv tom qab calcination. Feem ntau, cov hmoov tshauv ntau dua yog txuam nrog cov khoom siv qis dua. Hauv cov khoom piav qhia ntawmKimacell MHEC, cov khoom xyaw nquag ntawm cov khoom siv dav dav yog siab dua 92%.

3.4 Cov ntsiab lus ntawm NaCl hauvCellulose ether MHEC

NaCl yog ib qho inevitable by-product nyob rau hauv zus tau tej covCellulose ether MHEC, uas feem ntau yuav tsum tau muab tshem tawm los ntawm kev ntxhua khaub ncaws ntau. Lub sijhawm ntxuav ntau dua, NaCl tsawg dua. NaCl paub tias muaj kev phom sij rau corrosion ntawm steel tuav thiab hlau mesh, thiab lwm yam. Yog li ntawd, txawm tias rov ntxuav NaCl tuaj yeem ua rau tus nqi ntawm cov dej phwj tuaj,MHEC cov khoom uas muaj cov ntsiab lus NaCl tsawg yuav tsum raug xaiv kom deb li deb tau. Cov ntsiab lus ntawm NaClKimacell MHEC Cov khoom lag luam feem ntau tswj tau qis dua 1.5%, uas yog cov khoom lag luam nrog cov ntsiab lus NaCl tsawg.

4. Lub hauv paus ntsiab lus ntawm kev xaivCellulose ether MHEC rau cov khoom mortar sib txawv

Thaum lub sij hawm ntawm mortar khoom sivCellulose ether MHEC, ua ntej yuav tsum ua raws li cov lus piav qhia ntawm cov khoom siv phau ntawv, xaiv lawv tus kheej cov ntsuas kev ua tau zoo, xws li viscosity, etherification hloov pauv qib, cov ntsiab lus zoo, NaCl cov ntsiab lus thiab lwm yam) los sib piv kev pom zoo.Cellulose ether MHEC Raws li cov khoom siv mortar thiab kev ua tau zoo, kev sib xyaw ua ke ntawm kev xaiv ua tau raws li qhov yuav tsum tau muaj ntawm cov khoom zoo ntawmMHEC.

Raws li cov kev cai sib txawv ntawm cov khoom sib txawv mortar, cov hauv qab no qhia txog cov hauv paus ntsiab lus ntawm kev xaiv tsim nyogMHEC.

4.1 Nyias plastering system

Siv cov txheej txheem plastering nyias ntawm plastering mortar ua piv txwv, vim hais tias cov plastering mortar ncaj qha cuam tshuam nrog rau sab nraud ib puag ncig, cov dej ntog tau nrawm dua, yog li nws yuav tsum tau ceev cov dej siab. Tshwj xeeb tshaj yog nyob rau lub caij ntuj sov kev tsim kho, mortar yuav tsum muaj peev xwm khaws cov dej noo ntawm qhov kub thiab txias.MHEC Nrog rau cov dej khaws cia siab yog yuav tsum tau xaiv, uas tuaj yeem txiav txim siab los ntawm peb yam: viscosity, particle loj thiab qhov sib ntxiv. Feem ntau hais lus,MHEC nrog siab viscosity yuav tsum tau xaiv nyob rau hauv tib yam kev mob, thiab lub viscosity yuav tsum tsis txhob siab dhau los xav txog cov kev cai ntawm kev tsim kho. Yog li ntawd, lubMHEC yuav tsum tau xaiv nrog cov dej ceev ceev thiab tsawg viscosity.Kimacell MHEC cov khoom, MH60M thiab lwm tus tuaj yeem raug pom zoo rau cov txheej txheem plaster nyias.

4.2 Cement raws li plastering mortar

Plastering mortar yuav tsum tau zoo uniformity ntawm mortar, plastering yog yooj yim rau tusyees coated, thiab yuav tsum tau zoo ntsug ntws tsis kam, twj muaj peev xwm thiab fluidity thiab workability kuj siab. Yog li ntawd,MHEC nrog tsawg viscosity thiab sai dispersion thiab kev txhim kho sib xws (me me) hauv cov cement mortar raug xaiv, xws liKimacellyog MH60M thiab MH100M raug pom zoo.

4.3 Pobzebnplaum

Hauv kev tsim cov pobzeb ceramicnplaum, txhawm rau ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo, nws yog qhov tshwj xeeb uas yuav tsum tau qhib lub sijhawm ntawm cov mortar ntev dua, kev ua haujlwm tiv thaiv swb zoo dua, thiab muaj kev sib raug zoo ntawm cov khoom siv hauv paus thiab cov pobzeb ceramic. Raws li, ceramic pobzeb kua nplaum yog siab dua rauMHEC kev xav tau. ThiabMHEC nyob rau hauv ceramic pobzeb kua nplaum feem ntau muaj qhov ntau npaum li cas. Hauv kev xaiv ntawmMHEC, kom ua tau raws li qhov xav tau ntawm lub sijhawm qhib ntev,MHEC nws tus kheej yuav tsum muaj cov dej khaws cia siab, uas yuav tsum muaj qhov tsim nyog viscosity, ntxiv tus nqi thiab particle loj. Txhawm rau ua kom tau raws li qhov ua tau zoo los tiv thaiv zawv zawg,MHEC's zoo thickening nyhuv yog yuav tsum tau ua kom mortar lub ntsug ntws kuj muaj zog. Lub thickening muaj qee yam kev xav tau ntawm viscosity, etherification degree thiab particle loj. Yog li ntawd,MHEC uas yuav tsum tau txiav txim siab yuav tsum ua tau raws li qhov yuav tsum tau muaj viscosity, etherification degree thiab particle loj tib lub sijhawm. Nws raug nquahu kom sivKimacell MHECyog MH100M, MH60M thiab MH100 MAS.

Yuav kom tiv thaiv zawv zawg pobzeb kua nplaum, nws yuav tsum tauMHEC nrog tshwj xeeb tshaj yog zoo heev anti- ntsug ntws kev ua tau zoo yuav tsum thickened, thiaj li hloov kho heevMHEC tuaj yeem xaiv tau. Piv txwv li,MHECMH100M of Kimacell tuaj yeem pom zoo (cov khoom no tau hloov kho heev).

4.4 Self-leveling av mortar

Self-leveling mortar muaj kev xav tau ntau dua ntawm kev ua tau zoo, yog li nws tsim nyog xaivCellulose ether MHEC cov khoom uas muaj viscosity tsawg. Vim hais tias nws tus kheej-leveling yuav tsum sib tov sib xyaw mortar kom muaj peev xwm ua tau nyob rau hauv av, nws yuav tsum tau fluidity thiab siv, yog li cov dej-cov ntaub ntawv sib piv yog loj. Txhawm rau tiv thaiv los ntshav,MHEC yuav tsum tau tswj cov dej tuav ntawm qhov chaw thiab muab viscosity los tiv thaiv nag lossis daus. H300P2 thiab H20P2 ntawmKimacell raug pom zoo.

4.5 Pem teb mortar

Vim yog kev sib cuag ncaj qha nrog cov masonry nto, masonry mortar feem ntau tuab txheej tsim, yuav tsum tau mortar kom muaj kev ua haujlwm siab thiab dej tuav, tab sis kuj yuav tsum xyuas kom muaj kev sib txuas nrog cov masonry, txhim kho kev tsim kho, txhim kho efficiency. Yog li ntawd, kev xaiv ntawmMHEC yuav tsum muaj peev xwm pab mortar txhim kho kev ua tau zoo ntawm cov saum toj no,Cellulose ether MHEC viscosity tsis siab dhau, muaj qee qhov dej tuav, pom zoo sivMHECMH100M, MH60M, MH6M,lwm..

4.6 Thermal rwb thaiv tsev slurry

Thermal rwb thaiv tsev slurry yog siv los ntawm tes. Yog li ntawd, lubMHEC xaiv yog yuav tsum tau muab cov mortar zoo tsim, zoo workability thiab zoo heev dej tuav, thiab covMHEC yuav tsum muaj cov yam ntxwv ntawm high viscosity thiab siab cua entraining. Nyob rau hauv saib ntawm cov yam ntxwv saum toj no, nws raug nquahu kom sivKimacellyog MH100M, MH60M thiab lwm yam khoom uas muaj dej tuav tus nqi siab, siab viscosity thiab zoo huab cua entraining kev ua tau zoo.

5 xaus

Cellulose ether MHEC nyob rau hauv cement mortar yog lub luag hauj lwm ntawm dej tuav, thickening, cua induction, ncua thiab txhim kho lub tensile daim ntawv cog lus lub zog.