Methylhydroxyethylcellulose (MHEC) yog ib qho polymer compound uas siv dav hauv cov ntaub ntawv siv hauv kev tsim kho thiab muaj cov txiaj ntsig zoo hauv kev siv putty. Nov yog cov txiaj ntsig tseem ceeb ntawm methylhydroxyethylcellulose hauv kev siv putty:
1. Txhim kho kev ua haujlwm ntawm kev tsim kho
1.1 Txhim kho kev khaws dej
Methyl hydroxyethyl cellulose muaj cov dej zoo heev, uas pab ncua lub sijhawm qhib ntawm cov putty, ua rau tus neeg thov muaj sijhawm ntau dua los hloov kho thiab kov dua. Tsis tas li ntawd, kev khaws dej zoo tiv thaiv cov putty kom tsis txhob qhuav sai tom qab siv, txo qhov kev pheej hmoo ntawm kev tawg thiab chalking.
1.2 Txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm kev tsim kho
MHEC tuaj yeem txhim kho qhov kev npliag ntawm cov putty, ua rau nws yooj yim dua rau kev siv thiab nthuav. Qhov no tuaj yeem txo cov cim txhuam thiab cov npuas thaum lub sijhawm tsim kho thiab txhim kho qhov zoo thiab kev zoo nkauj ntawm cov putty.
1.3 Muab kev nplaum zoo
MHEC tuaj yeem ua kom qhov kev sib txuas ntawm cov putty thiab cov substrate zoo dua, ua kom ntseeg tau tias cov txheej txheej ruaj khov thiab siv tau ntev. Qhov no tseem ceeb heev rau kev tsim kho hauv qhov chaw nyuaj lossis kub heev, vim nws tiv thaiv cov txheej putty kom tsis txhob tev tawm thiab tev tawm.
2. Txhim kho cov khoom siv lub cev ntawm cov putty
2.1 Txhim kho qhov tsis kam tawg
Vim yog qhov MHEC khaws dej thiab ua kom yas, cov putty tuaj yeem ntsws sib npaug thaum lub sijhawm ziab, txo qhov ua tau ntawm kev ziab thiab tawg. Qhov yooj ywm ntawm cov putty tau txhim kho, ua rau nws hloov kho tau zoo dua rau cov kev hloov pauv me me hauv cov substrate yam tsis muaj kev tawg.
2.2 Txhim kho kev hnav tsis kam
MHEC ua kom cov putty tawv thiab ruaj khov dua, ua rau nws qhov chaw tsis yooj yim hnav. Qhov no tseem ceeb heev rau cov phab ntsa uas siv ntau zaus lossis raug kev sib txhuam, pab ua kom phab ntsa siv tau ntev dua.
2.3 Txhim kho kev tiv thaiv huab cua
MHEC hauv putty tuaj yeem txhim kho nws txoj kev tiv thaiv huab cua, ua rau nws tswj tau qhov kev ua tau zoo ruaj khov hauv ntau yam huab cua. Txawm tias nws yog qhov kub siab, kub qis lossis noo noo ib puag ncig, putty tuaj yeem tswj tau nws cov khoom zoo heev thiab tsis yooj yim cuam tshuam los ntawm kev hloov pauv ib puag ncig.
3. Txhim kho qhov ruaj khov ntawm cov tshuaj putty
3.1 Txhim kho alkali tsis kam
Methyl hydroxyethyl cellulose tuaj yeem txhim kho qhov tsis kam ntawm alkali ntawm putty thiab tiv thaiv kev puas tsuaj ntawm kev ua haujlwm los ntawm kev yaig los ntawm cov tshuaj alkaline. Qhov no ua kom ntseeg tau tias putty khaws nws cov kev ua tau zoo thiab tsos zoo thaum sib cuag nrog cov khoom siv alkaline xws li cov cementitious substrates.
3.2 Txhim kho cov tshuaj tua kab mob thiab cov tshuaj tua kab mob fungal
MHEC muaj qee yam tshuaj tua kab mob thiab tiv thaiv pwm, uas tuaj yeem tiv thaiv kev loj hlob ntawm cov kab mob thiab pwm thiab tiv thaiv cov pwm thiab cov ntxhiab tsw tsis pub tshwm sim ntawm qhov chaw putty. Qhov no tseem ceeb heev rau hauv qhov chaw noo noo lossis noo noo kom pab ua kom phab ntsa huv thiab huv.
4. Kev tiv thaiv ib puag ncig thiab cov txiaj ntsig kev lag luam
4.1 Cov yam ntxwv ntawm kev tiv thaiv ib puag ncig
Methyl hydroxyethyl cellulose yog ib yam khoom ntsuab thiab zoo rau ib puag ncig uas tsis muaj tshuaj lom thiab tsis ua rau tib neeg lub cev thiab ib puag ncig puas tsuaj. Kev siv nws tuaj yeem txo qhov kev siv lwm yam tshuaj lom neeg thiab txo qhov ua rau muaj kuab paug rau ib puag ncig thaum lub sijhawm tsim kho.
4.2 Txo cov nqi
Txawm hais tias tus nqi pib ntawm MHEC yuav siab dua, nws qhov kev ua tau zoo hauv kev siv putty tuaj yeem txo cov khoom siv thiab lub sijhawm siv, yog li txo cov nqi tsim kho tag nrho. Lub neej ua haujlwm ntev dua thiab kev saib xyuas tsawg dua kuj ua rau muaj txiaj ntsig zoo rau kev lag luam mus sij hawm ntev.
5. Ntau yam kev siv
Methyl hydroxyethyl cellulose tsis yog tsuas yog siv rau kev ua putty sab hauv phab ntsa xwb, tab sis kuj siv dav hauv ntau yam khoom siv hauv tsev xws li putty sab nraud phab ntsa, mortar tiv thaiv kev tawg, thiab self-leveling mortar. Nws qhov kev hloov pauv tau yooj yim thiab cov yam ntxwv zoo heev ua rau nws yog ib qho khoom siv tseem ceeb hauv kev tsim kho vaj tse niaj hnub.
Methylhydroxyethylcellulose muaj cov txiaj ntsig zoo hauv kev siv putty. Los ntawm kev txhim kho kev khaws cia dej, kev ua haujlwm ntawm kev tsim kho, kev nplaum thiab cov khoom siv lub cev, MHEC tuaj yeem txhim kho kev ua haujlwm ntawm kev tsim kho thiab kev siv cov txiaj ntsig ntawm putty. Tsis tas li ntawd, nws cov khoom zoo rau ib puag ncig thiab cov txiaj ntsig kev lag luam kuj ua rau nws yog cov khoom siv hauv tsev zoo tshaj plaws. Nrog rau kev txhim kho tas mus li ntawm cov thev naus laus zis kev tsim kho, kev siv MHEC hauv putty yuav dav dua.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2024