Kev tsim kho-qib HPMC hmoov: cov khoom tseem ceeb rau cov tshuaj khib nyiab zoo
Mortar, cov khoom siv hauv tsev, ua lub luag haujlwm tseem ceeb hauv kev tsim kho, ua raws li cov txheej txheem nruab nrab uas khi cov cib lossis pob zeb ua ke. Yuav kom tau txais cov mortar zoo, cov khoom xyaw yuav tsum raug xaiv kom raug. Ib qho khoom xyaw uas sawv tawm hauv kev lag luam mortar yog hydroxypropyl methylcellulose hmoov, feem ntau hu ua HPMC.
HPMC yog ib qho kev sib xyaw ua ke nrog cov khoom zoo heev uas haum rau kev siv hauv cov tshuaj khib nyiab. Hauv kev tsim kho, nws yog ib qho nrov, ntau yam khoom siv hauv kev npaj cov khoom sib xyaw qhuav xws li cov nplais nplaum, grouts thiab stuccoes. HPMC hmoov yog hloov kho cellulose ether ua los ntawm chemically modifying cellulose. Nws yog cov dej-soluble polymer uas txhim kho kev ua haujlwm ntawm masonry mortars los ntawm kev txhim kho cov khoom adhesion, dej tuav, qhov chaw tuav thiab txhim kho cov neeg kho tshuab.
Dab tsi yog qhov txiaj ntsig ntawm kev siv HPMC rau mortar?
1. Txhim kho cov khoom nplaum
Kev ua haujlwm siab ntawm HPMC hmoov hauv cov khoom siv khib nyiab yog vim nws cov khoom zoo heev. Thaum sib xyaw nrog dej, HPMC tsim cov gel uas khi thiab txhim kho qhov sib xws thiab adhesion ntawm mortar. Qhov kev sib raug zoo ntawm cov mortar thiab substrate yog qhov tseem ceeb los xyuas kom meej qhov ruaj khov thiab ua haujlwm ntev ntawm cov qauv. HPMC tsim ib daim ntawv cog lus muaj zog thiab ruaj khov uas tiv thaiv qhov chaw los ntawm lwm yam xws li ya raws thiab kub hloov.
2. Cov dej tuav tau zoo heev
Lub peev xwm khaws dej siab ntawm HPMC hmoov ua rau nws yog ib qho tseem ceeb ntxiv hauv kev tsim cov khoom siv masonry. HPMC lub peev xwm los khi thiab khaws cov dej noo hauv cov mortar sib tov txhais tau hais tias cov mortar tseem ntub rau lub sijhawm ntev thaum tsim kho. Lub sijhawm hardening txuas ntxiv kom ntseeg tau tias daim ntawv cog lus tau kho tag nrho thiab ntxiv dag zog, muab qhov txiaj ntsig zoo thiab kav ntev.
3. Txhim kho qhov chaw tsim kho
HPMC hmoov hloov cov viscosity ntawm mortar, muab kev ua haujlwm zoo dua thiab yooj yim ntawm daim ntawv thov thaum lub sijhawm teeb tsa. Kev hloov pauv hauv mortar viscosity txhais tau hais tias cov khoom tuaj yeem nchuav rau hauv txoj hauj lwm thiab tsim sai thiab yooj yim, txo cov sij hawm tsim kho thiab nce efficiency. Kev sib xyaw softer kuj txhais tau tias tsis tshua muaj kev khaus rau cov neeg ua haujlwm, ua kom cov khoom tsim tau thiab txo cov khoom seem, ua rau muaj txiaj ntsig zoo thoob plaws hauv kev tsim kho.
4. Txhim kho cov neeg kho tshuab tsis kam
Lub zog txhua yam ntawm mortar tsim los ntawm HPMC hmoov yog siab dua li lwm cov khoom xyaw mortar. Lub siab mechanical resistance ntawm lub mortar txhais tau hais tias cov khoom muaj peev xwm tiv taus hnyav loads, vibrations thiab hnav tsis muaj cracking. HPMC hmoov tsub kom lub tensile, flexural, compressive thiab shear lub zog ntawm mortars, tag nrho cov uas yog ib qho tseem ceeb nyob rau hauv lub tsim muaj zog thiab ruaj khov qauv.
Kev siv HPMC hmoov hauv ntau hom mortars
1. HPMC yog siv los tsim plastering mortar
Stucco yog ib lub mortar siv rau hauv kev tsim kho, tiv thaiv, lossis kho cov phab ntsa thiab qab nthab. HPMC hmoov yog cov khoom tseem ceeb hauv kev tsim gypsum. Plasters ua nrog HPMC hmoov muaj cov khoom nplaum zoo, txhim kho cov dej tuav, kev tuav tau zoo dua thiab ua haujlwm siab dua. HPMC yog cov khoom tseem ceeb hauv kev tsim cov plaster, vim nws kis tau yooj yim dua thiab ua raws li qhov chaw.
2. HPMC yog siv los tsim cov nplaum nplaum
Pobzeb nplaum yog ib qho tseem ceeb mortar siv rau phab ntsa thiab hauv pem teb. Ntxiv HPMC hmoov rau pobzeb adhesives txhim kho cov nplaum nplaum cov khoom sib txuas, txhim kho cov dej tuav thiab txhim kho cov nplaum cov khoom ua haujlwm. HPMC-raws li cov nplais nplaum tso cai rau kev sib kis zoo dua, kev sib raug zoo ntawm cov pobzeb thiab cov substrate, thiab lub sijhawm ua haujlwm ntev dua, txhua qhov tseem ceeb rau cov txiaj ntsig zoo.
3. HPMC rau cement slurry ntau lawm
Grout yog ib lub mortar nyias siv los sau qhov khoob ntawm cov vuas los yog cib. HPMC hmoov yog cov khoom tseem ceeb hauv kev tsim cov cement slurries. HPMC grouts muab cov khoom zoo dua qub xws li kev tuav dej ntau dua, ua haujlwm tau zoo dua, zoo sib xws, txo lub sijhawm teeb tsa thiab ua kom lub zog muaj zog. HPMC txhim kho qhov kawg ntawm grout, muab ib qho zoo ib yam thiab elegant tsos.
nyob rau hauv xaus
HPMC hmoov yog cov khoom tseem ceeb hauv kev tsim cov tshuaj khib nyiab zoo. Nws muaj qhov cuam tshuam loj rau kev txhim kho kev sib koom ua ke, kev tuav dej muaj peev xwm, kev tsim kho qhov chaw tswj thiab kev siv lub zog ntawm mortar. HPMC yog cov dej-soluble polymer uas muaj ntau yam thiab haum rau siv ntau hom mortars, xws li pobzeb adhesives, grouts thiab stuccoes. Nws txhim khu lub zog ntawm cov mortar, ua rau cov qauv kawg ruaj khov, txhim khu kev qha thiab ruaj khov. Cov kws tshaj lij kev tsim kho tuaj yeem tso siab rau HPMC mortars los tsim cov mortars ntev ntev thiab ua kom zoo nkauj rau cov tsev.
Post lub sij hawm: Sep-21-2023