Putty thiab plaster yog cov ntaub ntawv nrov siv dav hauv kev tsim kho kev lag luam.Lawv yog ib qho tseem ceeb rau kev npaj cov phab ntsa thiab qab nthab rau tha xim, npog cov kab nrib pleb, kho qhov chaw puas, thiab tsim kom du, txawm qhov chaw.Lawv yog tsim los ntawm cov khoom xyaw sib txawv xws li cov cement, xuab zeb, txiv qaub thiab lwm yam additives los muab kev ua tau zoo thiab cov yam ntxwv.Methylhydroxyethylcellulose (MHEC) yog ib qho tseem ceeb additives siv nyob rau hauv zus tau tej cov putty thiab plaster hmoov.Nws yog siv los txhim kho cov khoom ntawm cov hmoov, txhim kho lawv cov khoom siv thiab ua kom zoo rau lawv daim ntawv thov.
Cov txiaj ntsig ntawm kev siv MHEC los tsim cov hmoov putty thiab gypsum
MHEC yog muab los ntawm cellulose thiab tsim los ntawm kev hloov kho tshuaj.Nws yog cov dej-soluble compound dav siv los ua cov thickener, stabilizer thiab emulsifier hauv kev tsim kho kev lag luam.Thaum ntxiv rau putty thiab gypsum hmoov, MHEC coats cov khoom, muab ib txheej tiv thaiv uas tiv thaiv lawv los ntawm clumping thiab nyob.Qhov no ua rau muaj kev sib xyaw ua ke ntau dua, uas yooj yim rau kev ua haujlwm nrog thiab muab kev ua tiav zoo dua.
Ib qho txiaj ntsig tseem ceeb ntawm kev siv MHEC hauv putties thiab plasters yog tias nws txhim kho lawv cov dej khaws cia.MHEC absorbs thiab khaws cov dej noo, kom ntseeg tau tias qhov sib xyaw tseem siv tau thiab tsis qhuav sai sai.Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab qhuav qhov chaw uas sib tov sai sai yuav siv tsis tau, ua rau muaj kev cuam tshuam tiav.
MHEC kuj tseem txhim kho kev ua haujlwm thiab lub sijhawm ua haujlwm ntawm putties thiab plasters.MHEC ua kom sib xyaw thiab siv cov sib tov yooj yim dua los ntawm kev khaws cov dej noo thiab tiv thaiv qhov sib xyaw kom qhuav.Tsis tas li ntawd, MHEC's smooth, buttery kev ntxhib los mos tso cai rau putty thiab stucco kis tusyees nyob rau saum npoo yam tsis tau tawm hauv lumps los yog clumps, kom ntseeg tau ib tug flawless, zoo nkauj tag.
Ntxiv rau kev txhim kho kev ntxhib los mos thiab kev ua haujlwm ntawm putties thiab plasters, MHEC tuaj yeem txhim kho lawv cov khoom sib txuas.Los ntawm kev tsim cov txheej txheem tiv thaiv ib puag ncig cov khoom, MHEC ua kom lawv sib raug zoo rau saum npoo lawv kho.Qhov no ua rau muaj zog, ruaj khov dua qhov chaw uas tsis tshua muaj kev tawg, nti lossis tev lub sijhawm.
Lwm qhov txiaj ntsig tseem ceeb ntawm kev siv MHEC hauv putty thiab plaster yog tias nws ua rau lawv ua rau huab cua thiab noo noo.Qhov no txhais tau hais tias ib zaug putty los yog stucco yog siv, nws yuav tiv thaiv kev puas tsuaj los ntawm huab cua thiab noo noo, xyuas kom meej qhov chaw nyob ruaj thiab zoo nkauj mus sij hawm ntev.
Optimizing Putty thiab Gypsum Performance Siv MHEC
Txhawm rau txhim kho qhov ua tau zoo ntawm putty thiab plaster hmoov, nws yog ib qho tseem ceeb los xyuas kom meej tias MHEC siv nyob rau hauv qhov tseeb proportions.Qhov no txhais tau hais tias siv qhov tseeb ntawm MHEC tuaj yeem ua tiav qhov kev xav tau thiab cov yam ntxwv ntawm putty lossis stucco raug tsim.
Ib puag ncig yam uas yuav cuam tshuam rau kev ua haujlwm ntawm putty thiab gypsum hmoov yuav tsum tau txiav txim siab.Piv txwv li, nyob rau hauv ib puag ncig kub thiab qhuav, ntau MHEC yuav tsum tau muab ntxiv kom ntseeg tau tias qhov sib tov tseem siv tau thiab zoo ib yam.
Nws yog ib qho tseem ceeb los xyuas kom meej tias putty los yog stucco siv kom raug los ua kom nws qhov kev ua tau zoo.Qhov no txhais tau tias ua raws li cov chaw tsim khoom cov lus qhia ua tib zoo thiab xyuas kom meej tias cov khoom sib tov zoo sib xyaw ua ntej siv.Tsis tas li ntawd, cov cuab yeej tshwj xeeb yuav tsum tau ua kom ntseeg tau tias cov putty lossis stucco yog siv sib npaug thiab tsis tu ncua rau saum npoo tau kho.
MHEC yog ib qho tseem ceeb additive siv nyob rau hauv zus tau tej cov putty thiab plaster hmoov.Nws txhim kho cov khoom thiab cov khoom ntawm cov ntaub ntawv no, txhim kho lawv cov txheej txheem, dej tuav, adhesion thiab tsis kam rau huab cua thiab noo noo.Qhov no ua rau muaj qhov sib xws, ruaj khov thiab txaus nyiam ua tiav uas tsis tshua muaj kev tawg, nti lossis tev lub sijhawm.Txhawm rau txhim kho qhov ua tau zoo ntawm putty thiab gypsum hmoov, nws yog ib qho tseem ceeb kom paub meej tias cov tshuaj MHEC raug siv, suav nrog ib puag ncig yam uas yuav cuam tshuam rau lawv cov kev ua tau zoo.Tsis tas li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau siv lub putty lossis stucco kom raug kom ua tiav nws qhov kev ua tau zoo thiab ua tiav cov txiaj ntsig xav tau.
HEMC yog siv rau hauv cov cement formulations los txhim kho nws cov khoom Hydroxyethyl methylcellulose (HEMC) yog cov tshuaj siv dav hauv kev tsim kho kev lag luam.Nws yog qhov sib txuas ntawm kev ua haujlwm, dej tuav, thixotropy, thiab lwm yam. Niaj hnub no, ib hom tshiab ntawm cellulose ether tau txais kev saib xyuas ntau dua.Dab tsi tau nyiam ntau dua yog hydroxyethyl methylcellulose (MHEC).
Ib qho tseem ceeb tshaj plaws uas txiav txim siab qhov zoo ntawm cov khoom cement yog kev ua haujlwm ntawm cov khoom sib tov.Qhov no yooj yim npaum li cas cement yog sib tov, puab thiab qhov chaw.Yuav kom ua tiav qhov no, cov cement sib tov yuav tsum muaj kua txaus kom ncuav thiab ntws tau yooj yim, tab sis nws yuav tsum muaj kuab txaus los tuav nws cov duab.MHEC tuaj yeem ua tiav cov cuab yeej no los ntawm kev ua kom cov viscosity ntawm cov cement, yog li txhim kho nws txoj haujlwm.
MHEC tseem tuaj yeem ua kom cov dej ntawm cov cement thiab txhim kho nws lub zog.Lub zog kawg ntawm cov cement yog nyob ntawm cov dej siv los sib tov.Cov dej ntau dhau yuav txo qis lub zog ntawm cov cement, thaum cov dej tsawg dhau yuav ua rau nws nyuaj rau kev ua haujlwm nrog.MHEC pab khaws cov dej ntau, yog li ua kom pom kev pom dej ntawm cov cement thiab txhawb kev tsim cov ntawv cog lus muaj zog ntawm cov cement hais.
MHEC pab txo tus naj npawb ntawm cov cement tawg.Raws li cov cement kho, qhov sib tov sib xyaw ua ke, uas tuaj yeem ua rau cov kab nrib pleb yog tias tsis tswj tau.MHEC tiv thaiv qhov shrinkage no los ntawm kev tswj cov dej kom zoo hauv kev sib xyaw, yog li tiv thaiv cov cement los ntawm kev tawg.
MHEC kuj ua raws li cov yeeb yaj kiab tiv thaiv ntawm cov cement nto, tiv thaiv dej los ntawm evaporating los ntawm qhov chaw.Cov yeeb yaj kiab no kuj tseem pab tswj cov dej noo ntawm cov cement, ntxiv kom txo tau qhov tawg.
MHEC kuj zoo rau ib puag ncig.Ua ntej, nws yog biodegradable, uas txhais tau tias nws tsis nyob hauv ib puag ncig ntev.Qhov thib ob, nws tuaj yeem pab txo qis cov cement xav tau hauv kev tsim kho.Qhov no yog vim tias MHEC ua rau kom muaj peev xwm ua haujlwm thiab viscosity ntawm cov cement, txo qhov xav tau cov dej ntxiv uas tsuas yog dilutes cov cement sib tov.
Kev siv MHEC hauv cov cement muaj ntau qhov zoo thiab tuaj yeem ua rau muaj txiaj ntsig zoo rau kev tsim kho kev lag luam.Nws txhim khu kev ua haujlwm ntawm cov cement sib tov, txo cov kab nrib pleb tsim thaum lub sij hawm kho, txhawb cov cement hydration thiab lub zog, thiab ua raws li cov yeeb yaj kiab tiv thaiv ntawm cov cement nto.Tsis tas li ntawd, MHEC yog qhov zoo rau ib puag ncig.Yog li ntawd, MHEC yog cov khoom muaj txiaj ntsig zoo rau kev tsim kho kev lag luam vim nws txhim kho cov cement zoo thiab muab txiaj ntsig rau cov neeg ua haujlwm thiab ib puag ncig.
Post lub sij hawm: Oct-18-2023