1. Txhim kho cov dej tuav ntawm mortar
Hydroxypropyl methylcellulose (HPMC) yog ib tug zoo heev dej-retaining neeg sawv cev uas zoo absorbs thiab khaws cia dej los ntawm kev tsim ib tug uniform network qauv nyob rau hauv lub mortar. Qhov kev tuav dej no tuaj yeem ua kom ntev lub sijhawm evaporation ntawm cov dej hauv mortar thiab txo tus nqi ntawm cov dej poob, yog li ncua cov dej tshuaj tiv thaiv tus nqi thiab txo cov ntim ntim cov kab nrib pleb uas tshwm sim los ntawm cov dej evaporation sai. Nyob rau tib lub sijhawm, lub sijhawm qhib ntev dua thiab lub sijhawm tsim kho kuj tseem pab txhim kho kev tsim kho kom zoo thiab txo qhov muaj peev xwm ntawm cov kab nrib pleb.
2. Txhim kho kev ua haujlwm thiab rheology ntawm mortar
HPMC tuaj yeem kho qhov viscosity ntawm mortar, ua kom yooj yim rau kev khiav lag luam. Qhov kev txhim kho no tsis tsuas yog txhim kho cov dej ntws thiab kev ua haujlwm ntawm cov tshuaj khib nyiab, tab sis kuj tseem txhim kho nws cov adhesion thiab kev pab cuam ntawm lub substrate. Tsis tas li ntawd, AnxinCel®HPMC tseem tuaj yeem txo qis kev sib cais thiab dej hauv cov tshuaj khib nyiab, ua rau cov khoom ntawm cov tshuaj khib nyiab ntau dua, tsis txhob muaj kev ntxhov siab hauv zos, thiab txo qhov tshwm sim ntawm cov kab nrib pleb.
3. Txhim kho qhov adhesion thiab tawg tsis kam ntawm mortar
Lub viscoelastic zaj duab xis tsim los ntawm HPMC nyob rau hauv mortar tuaj yeem sau cov pores hauv lub mortar, txhim kho qhov ntom ntawm cov tshuaj khib, thiab txhim kho cov adhesion ntawm mortar rau substrate. Qhov tsim ntawm cov yeeb yaj kiab no tsis tsuas yog txhawb nqa tag nrho cov qauv ntawm cov mortar, tab sis kuj tseem muaj kev cuam tshuam ntawm kev nthuav dav ntawm microcracks, yog li txhim kho qhov tawg ntawm cov tshuaj khib. Tsis tas li ntawd, cov qauv polymer ntawm HPMC tuaj yeem cuam tshuam kev ntxhov siab thaum lub sijhawm kho cov tshuaj khib nyiab, txo kev ntxhov siab vim los ntawm cov khoom siv sab nraud lossis deformation ntawm substrate, thiab pab tiv thaiv kev txhim kho ntawm cov kab nrib pleb.
4. Tswj lub shrinkage thiab yas shrinkage ntawm mortar
Cov khib nyiab yog qhov ua rau cov kab tawg vim dej evaporation thaum lub sij hawm ziab, thiab cov khoom tuav dej ntawm HPMC tuaj yeem ncua cov dej poob thiab txo qhov ntim ntawm qhov shrinkage los ntawm shrinkage. Tsis tas li ntawd, HPMC tseem tuaj yeem txo qhov kev pheej hmoo ntawm cov yas shrinkage tawg, tshwj xeeb tshaj yog nyob rau hauv thawj theem ntawm lub mortar. Nws tswj cov kev tsiv teb tsaws ceev thiab kev faib dej, txo cov capillary nro thiab kev ntxhov siab saum npoo, thiab txo qhov tshwm sim ntawm kev tawg ntawm cov tshuaj khib nyiab.
5. Txhim kho qhov khov-thaw tsis kam ntawm mortar
Qhov sib ntxiv ntawm HPMC tuaj yeem txhim kho qhov khov-thaw tsis kam ntawm mortar. Nws cov dej tuav thiab kev ua yeeb yaj kiab muaj peev xwm pab txo qis cov dej khov ntawm cov tshuaj khib nyiab nyob rau hauv qhov kub thiab txias, zam qhov kev puas tsuaj rau cov mortar qauv vim qhov ntim nthuav dav ntawm cov dej khov. Tsis tas li ntawd, kev ua kom zoo ntawm cov qauv pore ntawm mortar los ntawm HPMC kuj tseem tuaj yeem txo qhov cuam tshuam ntawm lub voj voog khov-thaw ntawm qhov tawg tsis kam ntawm mortar.
6. Ntev lub sij hawm hydration cov tshuaj tiv thaiv thiab optimize lub microstructure
HPMC ncua lub sij hawm hydration cov tshuaj tiv thaiv ntawm mortar, tso cai rau cov cement hydration khoom los sau cov mortar pores ntau tus sib npaug thiab txhim kho qhov ntom ntawm mortar. Qhov kev ua kom zoo ntawm microstructure no tuaj yeem txo qhov tsim ntawm cov teeb meem sab hauv, yog li txhim kho tag nrho cov kab nrib pleb tsis kam ntawm mortar. Tsis tas li ntawd, cov saw hlau polymer ntawm HPMC tuaj yeem tsim ib qho kev cuam tshuam nrog cov khoom siv dej, ntxiv kev txhim kho lub zog thiab tawg tsis kam ntawm mortar.
7. Txhim kho deformation kuj thiab lub zog nqus cov yam ntxwv
AnxinCel®HPMC muab mortar ib qho yooj yim thiab deformation tsis kam, yog li nws tuaj yeem hloov mus rau qhov chaw sab nraud zoo dua thaum raug rau sab nraud quab yuam lossis kub hloov. Lub zog nqus cov cuab yeej no yog qhov tseem ceeb tshwj xeeb rau kev ua haujlwm tawg, uas tuaj yeem txo qhov tsim thiab nthuav ntawm cov kab nrib pleb thiab txhim kho lub sijhawm ntev ntawm cov tshuaj khib nyiab.
HPMC Txhim kho qhov tawg tsis kam ntawm mortar los ntawm ntau yam los ntawm nws qhov tshwj xeeb tuav dej, adhesion thiab zaj duab xis tsim muaj peev xwm, suav nrog kev ua kom zoo ntawm kev ua haujlwm ntawm mortar, txo qis shrinkage thiab yas shrinkage tawg, txhim kho adhesion, ncua lub sijhawm qhib thiab tiv thaiv khov-thaw muaj peev xwm. Hauv cov khoom siv hauv tsev niaj hnub no, HPMC tau dhau los ua cov khoom siv tseem ceeb los txhim kho cov kab nrib pleb ntawm cov mortar, thiab nws cov kev cia siab ntawm kev thov yog dav heev.
Post lub sij hawm: Jan-08-2025