Hydroxypropylmethylcellulose (HPMC) yog cellulose ether muab los ntawm ntuj cellulose. HPMC yog siv rau ntau yam kev siv xws li kev tsim khoom noj, kev tsim kho, tshuaj thiab tshuaj pleev ib ce. Raws li HPMC cov chaw tsim khoom, peb tau cog lus los tsim cov khoom lag luam zoo uas ua tau raws li peb cov neeg siv khoom xav tau.
Nyob rau hauv xyoo tas los no, tsawg-viscosity HPMC tau dhau los ua ntau thiab nrov hauv kev tsim kho kev lag luam vim nws cov khoom siv tau zoo dua qub thiab cov khoom tawg zoo dua. Tsawg-viscosity HPMC feem ntau yog siv rau hauv mortars, plasters thiab pobzeb adhesives ua cov thickener, binder thiab dej-retaining agent. Hauv tsab xov xwm no, peb piav qhia txog qhov tsis muaj viscosity HPMC thiab nws cov txiaj ntsig rau kev tsim kho kev lag luam.
Cov viscosity tsawg HPMC yog dab tsi?
Tsawg Viscosity HPMC yog ib qho cellulose ether nrog qis viscosity piv rau HPMC ib txwm muaj. Qhov no ua rau kev tuav thiab kev faib khoom yooj yim dua, thiab tseem txhim kho kev ua haujlwm ntawm cov khoom siv hauv tsev. Tsawg-viscosity HPMC feem ntau yog siv hauv mortar thiab lwm yam khoom siv los ua cov thickener thiab txhim kho cov khoom sib koom ua ke thiab ua haujlwm tau zoo.
Cov txiaj ntsig ntawm cov viscosity tsawg HPMC yog dab tsi?
Txhim Kho Kev Ua Haujlwm Zoo: Tsis tshua muaj viscosity HPMC txhim kho kev ua haujlwm ntawm cov ntaub ntawv tsim kho los ntawm kev txhim kho qhov ntws thiab tawg ntawm cov khoom. Qhov no ua rau daim ntawv thov yooj yim dua thiab txhim kho tag nrho qhov zoo ntawm cov khoom tiav.
Zoo dua Adhesion: Tsawg-viscosity HPMC ua raws li cov nplaum los txhim kho adhesion ntawm cov ntaub ntawv hauv tsev rau substrates. Qhov no ua rau nws yog ib qho zoo tagnrho additives rau mortars, plasters thiab pobzeb adhesives.
Txhim kho dej tuav: Tsawg viscosity HPMC tuaj yeem ua kom cov dej tuav hauv cov khoom siv hauv tsev, txo cov dej uas xav tau kom ua tiav qhov kev xav tau. Qhov no txuag cov nqi thiab txhim kho cov khoom lag luam.
Non-toxic thiab environmentally friendly: low-viscosity HPMC yog non-toxic thiab environmentally friendly, thiab yog ib qho kev xaiv zoo rau cov khoom siv hauv tsev. Nws tseem yog biodegradable thiab tuaj yeem siv tau yooj yim.
Kev siv dav dav: HPMC low-viscosity tuaj yeem siv rau ntau yam khoom siv hauv tsev, suav nrog mortars, plasters, grouts thiab pobzeb adhesives. Nws kuj yog siv rau hauv kev tsim tshuaj, tshuaj pleev ib ce thiab khoom noj khoom haus.
Cov viscosity tsawg HPMC ua li cas?
Tsawg viscosity HPMC yog tsim los siv cov txheej txheem zoo ib yam li HPMC ib txwm muaj. Cov txheej txheem yuav hloov cov cellulose ib txwm mus rau methylcellulose, tom qab ntawd ntxiv hydroxypropyl pawg rau methylcellulose los ua HPMC. Tsawg viscosity HPMC yog tsim los ntawm kev tswj cov qib ntawm kev hloov pauv (DS) thiab molecular hnyav ntawm HPMC, uas ua rau cov khoom muaj viscosity qis dua.
Yam tsawg viscosity HPMC muaj?
Tsawg viscosity HPMC muaj nyob rau hauv ntau qib, txhua tus muaj nws tus kheej cov khoom thiab cov yam ntxwv. Qee yam uas tsis tshua muaj viscosity HPMC hom muaj xws li:
- LV: qib viscosity qis nrog viscosity ntau ntawm 50 - 400 mPa.s. LV HPMC feem ntau yog siv rau hauv plasters, mortars thiab pobzeb adhesives.
- LVF: qis viscosity ceev teeb tsa qib nrog viscosity ntau ntawm 50 - 400 mPa.s. LVF HPMC feem ntau yog siv rau hauv kev teeb tsa cov nplais nplaum nplaum thiab grouts.
- LVT: Tsawg viscosity thickening qib nrog viscosity ntau ntawm 400 - 2000 mPa. LVT HPMC feem ntau yog siv rau hauv kev sib koom ua ke, kev luam ntawv textile thiab cov khoom tu tus kheej.
Cov ntawv thov ntawm cov viscosity tsawg HPMC yog dab tsi?
Tsawg viscosity HPMC yog dav siv hauv kev tsim kho kev lag luam ua cov thickener, nplaum thiab dej tuav tus neeg sawv cev. Qee qhov kev siv ntawm cov viscosity tsawg HPMC hauv kev tsim kho suav nrog:
- mortars: Tsawg viscosity HPMC yog siv rau hauv mortars los txhim kho kev ua haujlwm, adhesion thiab dej tuav. Nws kuj thickens lub mortar, ua kom nws yooj yim rau kev thov thiab txo qhov kev pheej hmoo ntawm kev tawg.
- Plastering: Tsawg viscosity HPMC yog siv hauv plastering los txhim kho kev ua haujlwm thiab khaws dej. Nws kuj tseem txhim kho cov tsos ntawm koj cov renders, ua rau lawv qhov chaw smoother.
- Pobzeb Adhesives: Tsawg viscosity HPMC yog siv rau hauv cov nplais nplaum los txhim kho kev ua haujlwm, adhesion thiab tuav dej. Nws kuj ua kom ntseeg tau tias cov nplais nplaum tseem hloov tau tom qab nws tau teeb tsa.
- Grouting: Tsawg viscosity HPMC yog siv rau hauv grouting los txhim kho kev ua haujlwm thiab tuav dej. Nws kuj pab tiv thaiv grout los ntawm tawg thiab shrinking.
nyob rau hauv xaus
Tsawg-viscosity HPMC yog ib qho tseem ceeb ntxiv hauv kev tsim kho kev lag luam, uas tuaj yeem txhim kho kev ua haujlwm, adhesion thiab dej tuav ntawm cov khoom siv hauv tsev. Raws li HPMC cov chaw tsim khoom, peb tau cog lus los tsim cov khoom lag luam zoo uas ua tau raws li peb cov neeg siv khoom xav tau. Peb yuav txuas ntxiv tsim kho tshiab thiab txhim kho peb cov khoom kom ntseeg tau tias lawv nyob twj ywm ntawm qhov ua ntej ntawm kev tsim kho kev lag luam.
Post lub sij hawm: Lub Xya hli ntuj-20-2023