HPMC, lossis hydroxypropylulose, yog ib qho tseem ceeb hauv cement-raws li cov khoom muaj txiaj ntsig ntawm cov khoom siv xis. Nws ua raws li cov tuab dua, tswj cov txheej txheem ntawm cov nplaum thaum txhim kho nws cov nplaum thiab dej khaws cia. Raws li kev tsim txom kev tsim kho txuas ntxiv, HPMC tau dhau los ua qhov tseem ceeb tshaj plaws hauv kev ua raws li cov qauv kev tsim kho kom zoo nkauj.
Ib qho ntawm cov laj thawj tseem ceeb HPMC yog qhov khoom siv tseem ceeb hauv Cement-raws cov pob zeb-raws cov nplaum nplaum yog nws cov khoom siv thickening. HPMC yog cov dej-soluble cellulose ether tias lim qhov kev daws teeb meem thaum ntxiv me me. Qhov no muab cov nplaum zoo ib yam nkaus, ua kom yooj yim rau kev thov thiab nthuav kev sib xyaw, thaum kawg txhim kho kev ua haujlwm thiab kev tsim khoom. Kev ua haujlwm zoo dua yuav pab txo cov khib nyiab raws li nws tso cai rau kev sib xyaw ua ke zoo dua thiab faib cov nplaum ntawm cov vuas. HPMC ua raws li kev ntseeg rheology, ruaj khov lub viscesive thiab tuab, uas tuaj yeem ua rau nws txoj kev ua tau zoo thiab ua rau cov vuas luaj tsis sib haum.
Lwm cov txiaj ntsig zoo ntawm kev siv HPMC hauv Caas-raws cov pobzeb nplaum yog nws cov nyhuv ntawm cov nplaum ua kom muaj zog. HPMC yog ib zaj yeeb yaj kiab zoo heev qub, lub ntsiab lus nws tsim cov txheej tiv thaiv ib ncig ntawm cov ntawv nce toj hauv phau ntawv. Qhov kev tiv thaiv kev tiv thaiv no pab tiv thaiv kom txhob muab cov nyiaj sib cog lus los ntawm kev ziab tawm sai sai, yog li nce cov nyiaj txhiv lub zog thiab lub zog. Nyob rau hauv txoj kev no, HPMC pab txuas lub sijhawm ua haujlwm ntawm cov nplaum thiab tso cai rau cov vuas kom raug. Lub zog txhim kho lub zog muab los ntawm HPMC kuj txo cov nplais Slippage, Li txhim kho cov nplais uas muaj zog tag nrho.
HPMC kuj tseem yog cov khoom nrov emulsifier uas txhim kho cov khoom siv dej ntawm cov nplaum. HPMC yog tus cwj pwm los ntawm nws lub peev xwm los nqus thiab khaws dej, ua rau nws muaj cov khoom xyaw zoo tagnrho rau cov pob txhaent cov khoom nplaum. Lub peev txheej hauv dej-tuav tau muab cov nplaum ntau dua, txhim kho kev ntub dej, txhim kho kev ntub dej, thiab ua kom tuab ntxiv rau cov substrate. Tsis tas li ntawd, HPMC tuaj yeem hloov kho cov chaw thiab cov yam ntxwv tawv ntawm cov nplaum kom nws tuaj yeem tiv thaiv cov kev ntxhov siab shrinkage tsim los thaum ziab thiab kho tau. Qhov no yuav pab txhim kho nws cov vuas dej, tiv thaiv cov vuas luaj thiab substrate ntawm cov dej puas thiab txuas lub neej ntawm cov txheej txheem flooring.
Lwm qhov tseem ceeb ntawm kev siv HPMC hauv Caas-raws cov pobzeb nplaum yog nws qhov sib xyaw nrog lwm cov khoom xyaw. HPMC yog cov khoom siv ntau yam uas ua haujlwm tau zoo nrog lwm cov kev ua tau zoo xws li cov nplaum thiab kev ua tau zoo ntawm cov chaw sib txawv thiab cov xwm txheej. Kev siv HPMC nyob rau hauv cov nplais nplaum thiaj li ua kom tau raws li cov kev xav tau ntawm cov khoom lag luam sib txawv, ua kom cov khoom lag luam zoo dua nyob rau ib puag ncig lossis daim ntawv thov.
HPMC yog qhov tsis tseem ceeb hauv caent-raws cov ceg tawv nqaij vim tias nws txhim kho cov nyiaj sib cog lus, cov dej ua haujlwm thiab ua haujlwm ntawm cov nplaum. Nws tau txais txiaj ntsig txhua txoj haujlwm tsim kho los ntawm kev muab cov txiaj ntsig kev ua haujlwm tau zoo, kev ua haujlwm zoo thiab kev tiv thaiv zoo heev ntawm cov dej puas thiab hnav. Cov txiaj ntsig ntawm HPMC tuaj yeem pom tau los ntawm kev sib txuas nrog lwm cov kev sib ntxiv uas ua kom cov khoom siv ntawm cov nplaum kom tau raws li cov phiaj xwm tshwj xeeb. Yog li ntawd, kev siv HPMC hauv Caent-raws cov pob zeb-raws cov nplaum nplaum yog qhov tseem ceeb thiab kev xaiv ntse rau cov kev tsim kho uas yuav tsum muaj cov txiaj ntsig zoo thiab ntev ntev.
Lub Sijhawm Post: Feb-19-2025