Methylhydroxyethylcellulose (MHEC) yog cov khoom siv polymer dav siv hauv cov khoom siv hauv tsev thiab muaj qhov zoo ntawm cov ntawv thov putty.Nov yog cov txiaj ntsig tseem ceeb ntawm methylhydroxyethylcellulose hauv kev siv putty:
1. Txhim kho kev tsim kho kev ua haujlwm
1.1 Txhim kho kev tuav dej
Methyl hydroxyethyl cellulose muaj cov dej tuav tau zoo, uas pab txuas ntxiv lub sijhawm qhib ntawm lub putty, tso cai rau tus neeg siv sijhawm ntau los hloov kho thiab kov-ups.Tsis tas li ntawd, kev tuav dej zoo tiv thaiv cov putty kom qhuav sai sai tom qab thov, txo qhov kev pheej hmoo ntawm kev tawg thiab chalking.
1.2 Txhim kho kev tsim kho fluidity thiab kev ua haujlwm
MHEC tuaj yeem txhim kho fluidity ntawm putty, ua kom yooj yim rau kev thov thiab sib kis.Qhov no tuaj yeem txo cov cim txhuam thiab npuas thaum lub sij hawm tsim kho thiab txhim kho kev tsim kho kom zoo thiab zoo nkauj ntawm lub putty.
1.3 Muab adhesion zoo
MHEC tuaj yeem txhim kho qhov adhesion ntawm putty thiab substrate, kom ntseeg tau qhov ruaj khov thiab kav ntev ntawm cov txheej.Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau kev tsim kho nyob rau hauv complex los yog high-kub ib puag ncig, raws li nws tiv thaiv lub putty txheej los ntawm tev tawm thiab tev tawm.
2. Txhim kho lub cev muaj zog ntawm putty
2.1 Txhim khu kev tiv thaiv tawg
Vim cov dej tuav thiab plasticizing nyhuv ntawm MHEC, lub putty tuaj yeem shrinkage tusyees thaum lub sij hawm ziab, txo qhov ua kom qhuav thiab tawg.Lub putty qhov yooj yog txhim kho, tso cai rau nws zoo dua hloov mus rau me deformations nyob rau hauv lub substrate yam tsis muaj cracking.
2.2 Txhim kho hnav tsis kam
MHEC txhim kho lub hardness thiab toughness ntawm putty, ua rau nws nto ntau hnav-resistant.Qhov no yog qhov tshwj xeeb tshaj yog rau cov phab ntsa uas siv ntau zaus los yog raug kev sib txhuam, pab kom ntev lub neej ntawm phab ntsa.
2.3 Txhim kho huab cua tiv thaiv
MHEC hauv putty tuaj yeem txhim kho nws cov huab cua tiv thaiv, tso cai rau nws tswj kev ua haujlwm ruaj khov nyob rau hauv cov huab cua sib txawv.Txawm hais tias nws yog qhov kub thiab txias, qhov kub thiab txias ib puag ncig, putty tuaj yeem tswj nws lub cev zoo thiab tsis yooj yim cuam tshuam los ntawm kev hloov pauv ib puag ncig.
3. Optimize tshuaj stability ntawm putty
3.1 Txhim kho alkali tsis kam
Methyl hydroxyethyl cellulose tuaj yeem txhim kho cov alkali tsis kam ntawm putty thiab tiv thaiv kev ua haujlwm degradation los ntawm kev yaig los ntawm cov tshuaj alkaline.Qhov no ua kom ntseeg tau tias lub putty khaws nws cov kev ua tau zoo thiab zoo li thaum sib cuag nrog alkaline-muaj cov ntaub ntawv xws li cementitious substrates.
3.2 Txhim kho cov tshuaj tua kab mob thiab tshuaj tua kab mob
MHEC muaj qee yam tshuaj tua kab mob thiab tshuaj tiv thaiv kab mob, uas tuaj yeem cuam tshuam kev loj hlob ntawm cov kab mob thiab pwm thiab tiv thaiv mildew me ntsis thiab tsw los ntawm kev tshwm sim ntawm putty nto.Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv qhov chaw ntub dej los yog qhov chaw ntub dej los pab ua kom cov phab ntsa huv si thiab huv si.
4. Kev tiv thaiv ib puag ncig thiab cov txiaj ntsig kev lag luam
4.1 Cov yam ntxwv tiv thaiv ib puag ncig
Methyl hydroxyethyl cellulose yog cov khoom ntsuab thiab ib puag ncig tus phooj ywg uas tsis muaj tshuaj lom thiab tsis muaj mob rau tib neeg lub cev thiab ib puag ncig.Kev siv nws tuaj yeem txo qis kev siv lwm yam tshuaj lom neeg ntxiv thiab txo cov pa phem ib puag ncig thaum lub sijhawm tsim kho.
4.2 Txo cov nqi
Thaum tus nqi pib ntawm MHEC tej zaum yuav siab dua, nws qhov kev ua tau zoo hauv putty tuaj yeem txo cov khoom siv thiab siv sijhawm, 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 kev lag luam mus ntev.
5. Kev siv ntau yam
Methyl hydroxyethyl cellulose tsis yog tsuas yog haum rau sab hauv phab ntsa putty, tab sis kuj yog siv dav hauv ntau yam khoom siv hauv tsev xws li sab nrauv phab ntsa putty, anti-cracking mortar, thiab self-leveling mortar.Nws versatility thiab zoo heev cov khoom ua rau nws ib tug indispensable additive nyob rau hauv niaj hnub tsim tsev.
Methylhydroxyethylcellulose muaj cov txiaj ntsig zoo hauv kev siv putty.Los ntawm kev txhim kho cov dej tuav, kev tsim kho fluidity, adhesion thiab lub cev lub zog, MHEC tuaj yeem txhim kho kev tsim kho kev ua tau zoo thiab siv cov nyhuv ntawm putty.Tsis tas li ntawd, nws cov khoom zoo ib puag ncig thiab cov txiaj ntsig kev lag luam kuj ua rau nws zoo tagnrho cov khoom siv ntxiv.Nrog kev txhim kho txuas ntxiv ntawm kev tsim kho thev naus laus zis, daim ntawv thov kev cia siab ntawm MHEC hauv putty yuav dav dua.
Post lub sij hawm: Lub Xya hli ntuj-15-2024