HydroxyPropyyl methylcellueculose (HPMC) yog qhov tseem ceeb ntxiv cov khoom siv tau siv hauv tsev. Nws yog ib qho tsis-ionic cellulose cellulose tau los ntawm cov tshuaj kho mob kho mob thiab muaj tshuaj lom neeg lub cev. HPMC tsuas yog siv los ua cov tuab, nplaum, zaj duab xis yav tas los, dej tuav, thiab roj nplua nyeem hauv kev tsim kho. Nws cov kev ua tau zoo ua rau nws muaj qhov tseem ceeb hauv kev tsim ntawm cov ntaub ntawv hauv tsev.
Tshuaj lom neeg cov khoom ntawm hydroxypropy kasthylcelulose
HPMC tau npaj los ntawm hydroxypropy thiab methylation ntawm cellulose lwg me me. Nws muaj cov dej zoo solubility thiab solubility thiab tuaj yeem nyob ruaj khov nyob rau hauv ntau hom. HPMC foos lub siab viscosity daws hauv cov kua aqueous, thiab nws cov viscosity tuaj yeem hloov kho los ntawm kev tswj hwm qib thiab hnyav. Tsis tas li ntawd, HPMC muaj cov ntsev ntau tsis kam thiab tsis muaj qhov kub thiab txias, uas ua rau nws muaj ntau cov ntawv thov cov ntaub ntawv hauv tsev.
Cov ntawv thov tseem ceeb ntawm HydroxyPropyyl methylculose hauv cov ntaub ntawv tsim tsev
COAT CUG
Nyob rau hauv cov ntawv tso cai, HPMC tau siv dav hauv qhuav-mixed-mixed-mortab cug, Masonry cug, Masonry cov nplaum. Raws li cov tuab thiab dej tuav, HPMC tuaj yeem txhim kho kev ua haujlwm ntawm kev tshuaj khib. Nws cov dej zoo kom ua kom muaj kev tshuaj khib tsis poob dej yooj yim thaum lub sij hawm kho tus txheej txheem, yog li zam rau ntau tiam neeg cov kab nrib pleb. Tsis tas li ntawd, HPMC kuj tseem tuaj yeem txhim kho cov khoom ntiag tug ntawm cov tshuaj khib, ua rau nws tsis tshua ua tiav thaum txheej txheej.
Cov nplaum nplaum
HPMC ua si lub xaim tuab thiab ua lub luag haujlwm hauv cov khoom nplaum. Nws tuaj yeem txhim kho lub zog ntawm lub zog ntawm cov nplaum thiab xyuas kom cov vuas luaj yog ruaj khov thiab khov kho ntawm phab ntsa lossis hauv av. Ib qho ntxiv, cov nyhuv retarding ntawm HPMC tuaj yeem txuas lub sijhawm qhib txuas ntxiv, muab cov haujlwm siv sijhawm siv sijhawm ntev dua thiab txhim kho kev tsim kho thiab zoo.
Gypsum-based cov ntaub ntawv
Hauv Gypsum-based cov ntaub ntawv xws li Gypsum Board, Gypsum plaster thiab gypsum putty, HPMC yog siv los ua dej tuav thiab tuab. Nws tuaj yeem txhim kho lub viscosity thiab kev ua haujlwm ntawm gypsum, thaum ncua sij hawm caij lub sij hawm ntawm gypsum kom tsis txhob muaj kev ua haujlwm los ntawm kev teeb tsa sai. Qhov sib ntxiv ntawm HPMC kuj tseem tuaj yeem txhim kho lub tawg tsis kam thiab nto smoothness ntawm gypsum cov ntaub ntawv.
Putty hmoov
HPMC yog ib qho tseem ceeb hauv cov khoom xyaw uas muaj putty. Nws tsis tsuas yog txhim kho cov viscosity ntawm putty hmoov, tab sis kuj txhim kho nws cov kev tsim kho. Cov dej khaws cov nyhuv ceev ntawm HPMC tiv thaiv lub putty los ntawm kev poob dej thiab qhuav sai dhau thaum kev tsim kho, yog li txo qhov tau los ntawm kev tawg. Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho qhov hloov tau thiab tensile tsis kam ntawm putty, ua rau phab ntsa saum npoo smoother thiab smoother.
Cov tsho ntoo waterproof
Hauv cov txheej txheej tiv thaiv dej, HPMC feem ntau yog siv los kho cov viscosity thiab rheological cov khoom ntawm cov txheej. Nws tuaj yeem txhim kho lub thixotropy ntawm txheej, ua rau txheej txheej txheej thaum ua kom yooj yim rau kev tsim kho, thiab tuaj yeem rov qab mus rau qhov txawv txav tom qab kev tsim kho kom tiv thaiv sagging. Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho cov dej tuav thiab ua yeeb yaj kiab ntawm cov khoom siv dej tsis muaj zog thiab txhim kho cov txheej txheem waterness thiab durability ntawm txheej.
Thermal thiab Suab Rwb Thaiv Tsev Khoom
Nyob rau hauv thermal thiab lub suab rwb thaiv tsev cov ntaub ntawv, HPMC feem ntau yog siv los ua phau ntawv thiab dej tuav. Nws tuaj yeem pab cov ntaub ntawv tau khaws cov dej noo thaum kev tsim kho thiab xyuas kom cov ntaub ntawv muaj lub zog txaus thiab cov khoom nplaum thaum lub sijhawm kho. Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho cov khoom siv tau thiab elasticity ntawm cov ntaub ntawv no, ua rau lawv tsis tshua muaj kev cuam tshuam lossis tawg thaum siv sijhawm ntev.
Qhov zoo ntawm hydroxypropyl methylcellose
Daim ntawv thov ntawm HPMC hauv cov ntaub ntawv tsim tsev muaj cov txiaj ntsig hauv qab no:
Cov dej zoo heev: HPMC tuaj yeem ua lub luag haujlwm zoo hauv kev tshuaj khib nyiab hauv cov dej, yog kev txhim kho cov khoom siv tsis taus sai thiab ruaj khov ntawm cov ntaub ntawv.
Cov nyhuv zoo heev: HPMC tuaj yeem ua kom lub viscosity hauv tsev, ua rau lawv ua lag luam thiab tswj tau thaum lub sijhawm kev tsim kho.
Txhim kho kev tsim kho kev tsim kho: HPMC tuaj yeem txuas lub sijhawm qhib kev tsim kho, txhim kho cov khoom siv los tiv thaiv sagging thiab los tiv thaiv cov ntaub ntawv, yog li kev txhim kho cov khoom siv ua tau zoo.
Kev Siv Feem Ntau: HPMC yog qhov tsim nyog rau ntau hom khoom siv hauv tsev, xws li cov cement-based, gypsum raws, thiab cov kua qaub-raws li cov khoom siv, thiab muaj ntau yam siab zoo.
HydroxyPropy muag methylcellulose tau siv dav hauv cov ntaub ntawv hauv tsev vim nws lub cev nqaij daim tawv thiab tshuaj lom neeg. Los ntawm kev txhim kho cov ntaub ntawv ua yeeb yam xws li tshuaj cug, cov nplaum, thiab cov tshuaj lom neeg, tab sis kuj nthuav tawm cov kev pabcuam lub neej ntawm cov tsev. Yav tom ntej, nrog kev txhim kho kev ua lag luam hauv tsev, HPMC yuav ua lub luag haujlwm tseem ceeb dua nyob hauv cov teb ntsuab ntawm lub tsev ntsuab thiab kev txhim kho kom ruaj khov.
Lub Sijhawm Post: Feb-17-2025