Taw qhia rau HPMC thiab MHEC:
HPMC thiab MHEC yog cov cellulose ethers feem ntau siv hauv cov khoom siv, suav nrog cov tshuaj khib nyiab qhuav. Cov polymers no yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Thaum ntxiv rau cov khoom sib tov qhuav, HPMC thiab MHEC ua cov thickeners, dej tuav cov neeg ua haujlwm, khi, thiab txhim kho kev ua haujlwm thiab kev sib koom ua ke.
1. Kev tuav dej:
HPMC thiab MHEC yog hydrophilic polymers, txhais tau tias lawv muaj kev sib raug zoo rau dej. Thaum muab tso rau hauv cov khoom sib xyaw qhuav, lawv tsim ib zaj duab xis nyias ntawm cov cement hais, tiv thaiv cov evaporation sai ntawm dej thaum kho. Qhov kev siv dej ntev ntev no pab txhim kho lub zog ntawm cov tshuaj khib nyiab, txo qhov kev pheej hmoo ntawm kev tawg thiab ua kom qhov chaw raug.
2. Txhim kho kev ua haujlwm:
HPMC thiab MHEC txhim kho kev ua haujlwm ntawm cov khoom sib xyaw qhuav los ntawm kev faib cov lubrication. Lawv ua raws li plasticizers, txo kev sib txhuam ntawm cov khoom thiab ua rau cov tshuaj khib yooj yim sib tov, sib kis thiab ua tiav. Qhov kev txhim kho kev ua haujlwm no ua rau muaj kev sib luag zoo dua thiab sib xws ntawm cov txheej txheej mortar.
3. Ntxiv sijhawm qhib:
Lub sijhawm qhib yog lub sijhawm uas lub mortar tseem siv tau tom qab sib tov. HPMC thiab MHEC txuas ntxiv lub sijhawm qhib ntawm cov khoom sib tov qhuav los ntawm kev ua kom cov dej evaporation qeeb. Qhov no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev tsim kho loj dua uas yuav tsum tau ua haujlwm ntev, xws li daim ntawv thov pobzeb lossis plaster.
4. Txhim kho adhesion:
Lub xub ntiag ntawm HPMC thiab MHEC nyob rau hauv qhuav mix mortars txhawb kom zoo adhesion rau ntau yam substrates xws li pob zeb, masonry thiab ceramic vuas. Cov polymers no tsim cohesion ntawm mortar thiab substrate, txhim kho tag nrho durability thiab kev ua tau zoo ntawm cov khoom siv. Tsis tas li ntawd, lawv txo qhov kev pheej hmoo ntawm delamination thiab sib cais raws sijhawm.
5. Kev ua haujlwm tawg:
Cracking yog ib qho teeb meem tshwm sim nrog mortar, tshwj xeeb tshaj yog thaum lub sij hawm ziab thiab kho cov theem. HPMC thiab MHEC pab daws qhov teeb meem no los ntawm kev txhim kho kev sib koom ua ke thiab yooj yim ntawm mortar matrix. Los ntawm kev txo qis qis thiab tswj cov txheej txheem hydration, cov polymers pab txhim kho tag nrho cov kab nrib pleb ntawm cov mortar tiav, ua rau cov qauv siv ntev dua.
6. Versatility:
HPMC thiab MHEC yog ntau yam additives uas yuav siv tau nyob rau hauv ntau yam qhuav mix mortar formulations. Txawm hais tias cov khoom siv pob zeb, pobzeb nplaum, cov khoom sib txuas ntawm tus kheej lossis kho cov mortars, cov polymers muab kev ua haujlwm zoo ib yam thiab sib haum nrog lwm cov khoom xyaw. Qhov no versatility simplifies cov txheej txheem tsim thiab tso cai rau kev txhim kho cov kev cai mortar daws rau cov kev siv tshwj xeeb.
7. Cov txiaj ntsig ib puag ncig:
HPMC thiab MHEC yog ib puag ncig tus phooj ywg additives muab los ntawm cov peev txheej txuas ntxiv mus. Lawv siv nyob rau hauv qhuav-sib tov mortars pab txo cov kev siv ntawm natural resources thiab txo cov khoom pov tseg, yog li txhawb kev txhim kho kom ruaj khov. Tsis tas li ntawd, lawv cov biodegradability ua kom muaj kev cuam tshuam ib puag ncig tsawg kawg ntawm qhov kawg ntawm mortar lub neej voj voog.
HPMC thiab MHEC muaj ntau qhov zoo thiab tseem ceeb hauv cov khoom siv khib nyiab qhuav. Los ntawm kev txhim kho kev ua haujlwm thiab kev ua kom zoo rau kev txhim kho kev sib tsoo thiab kev ua haujlwm ntev, cov cellulose ethers ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm thiab kev ua haujlwm ntev ntawm mortars hauv kev tsim kho. Raws li kev ruaj khov thiab muaj ntau yam additives, HPMC thiab MHEC tseem yog thawj qhov kev xaiv rau cov tuam txhab nrhiav kev ua kom zoo dua ntawm lawv cov mortar formulations thaum txo qhov cuam tshuam ib puag ncig.
Post lub sij hawm: Feb-27-2024