HPMC (Hydroxypropyl Methylcellulose) yog cov khoom siv polymer dav siv hauv kev tsim kho thiab muaj lub cev thiab tshuaj lom neeg tshwj xeeb. HPMC feem ntau yog siv los ua ib qho ntxiv hauv kev tsim kho kev lag luam los txhim kho cov khoom ntawm cov khoom siv hauv tsev, tshwj xeeb tshaj yog nyob rau hauv mortars, putty hmoov, coatings thiab cement khoom.
1. Daim ntawv thov hauv mortar
Hauv kev tsim mortars, HPMC tau siv dav los txhim kho kev tsim kho. Nws cov dej tuav, thickening thiab anti-sag zog ua rau HPMC ua lub luag haujlwm tseem ceeb hauv kev npaj sib xyaw mortars, ceramic tile adhesives, masonry mortars thiab lwm yam teb.
Kev tuav dej: HPMC tuaj yeem txhim kho cov dej tuav lub peev xwm ntawm mortar thiab tiv thaiv cov dej los ntawm evaporating sai heev, yog li ua kom muaj dej txaus ntawm cov cement thiab txhim kho lub zog sib txuas thiab tawg tsis kam ntawm mortar. Qhov no feature yog tshwj xeeb tshaj yog ib qho tseem ceeb nyob rau hauv qhov kub thiab txias ib puag ncig kom tsis txhob tawg thiab lub zog poob los ntawm ntau dhau qhuav ntawm cov mortar.
Thickening: HPMC tuaj yeem kho qhov fluidity thiab viscosity ntawm mortar, ua rau lub mortar smoother thaum siv thiab yooj yim rau kev tsim. Nyob rau tib lub sijhawm, nws tseem tuaj yeem txhim kho lub wettability thiab adhesion ntawm mortar rau cov khoom siv hauv paus, kom ntseeg tau tias cov mortar tuaj yeem ruaj khov rau ntawm phab ntsa lossis lwm cov ntaub ntawv hauv paus.
Anti-sag: HPMC tuaj yeem tiv thaiv cov mortar los ntawm sagging los yog sagging thaum tsim ntawm ntsug, tshwj xeeb tshaj yog thaum tsim cov txheej tuab. Nws txoj kev hloov kho viscosity tuaj yeem ua kom cov mortar zoo thaum lub sij hawm tsim kho thiab tsis yooj yim rau poob.
2. Daim ntawv thov nyob rau hauv ceramic pobzeb adhesives
Ntawm cov nplais pobzeb nplaum, HPMC feem ntau yog siv los txhim kho kev sib raug zoo thiab kev tsim kho ntawm cov vuas ceramic. Nyob rau hauv niaj hnub architecture, ceramic vuas yog dav siv rau phab ntsa thiab pem teb kho kom zoo nkauj, yog li qhov zoo ntawm cov nplaum yog qhov tseem ceeb.
Txhim kho kev sib raug zoo zog: HPMC ua kom muaj kev ua tiav cov dej ua tiav ntawm cov cement los ntawm nws cov dej tuav thiab cov nyhuv thickening, yog li txhim kho lub zog sib txuas ntawm cov nplaum thiab cov vuas ceramic thiab substrate. Qhov no tsis tsuas yog ncua lub neej kev pab cuam ntawm cov vuas, tab sis kuj tiv thaiv lawv los ntawm kev ntog vim tsis txaus adhesion.
Sijhawm qhib sijhawm: Thaum lub sijhawm ua cov pobzeb ceramic, cov neeg ua haujlwm tsim kho feem ntau xav tau sijhawm txaus los kho qhov chaw ntawm cov vuas luaj ceramic. Qhov sib ntxiv ntawm HPMC tuaj yeem txuas ntxiv lub sijhawm qhib ntawm cov nplaum, muab cov neeg ua haujlwm tsim kho ntau lub sijhawm los ua haujlwm thiab kho, yog li kev txhim kho kev tsim kho.
Tiv thaiv zawv zawg: Thaum tso cov vuas luaj ceramic rau ntawm lub façade, HPMC tuaj yeem tiv thaiv cov vuas luaj ceramic los ntawm zawv zawg thiab tswj lawv qhov kev ruaj ntseg thaum siv. Qhov no tsis tsuas yog txo qhov nyuaj ntawm kev tsim kho, tab sis kuj txhim kho qhov zoo ntawm kev tsim kho.
3. Daim ntawv thov nyob rau hauv putty hmoov
Lub luag haujlwm ntawm HPMC hauv cov hmoov putty kuj tseem ceeb heev, feem ntau hauv kev txhim kho kev ua haujlwm, dej tuav thiab tawg tsis kam ntawm putty.
Txhim kho kev ua haujlwm: Ntxiv HPMC rau cov hmoov putty tuaj yeem ua rau daim ntawv thov ntawm putty smoother thiab tsis txhob khawb, dryness thiab lwm yam tshwm sim thaum lub sij hawm tsim kho. Nyob rau tib lub sijhawm, fluidity thiab ductility ntawm putty kuj tuaj yeem txhim kho, ua kom yooj yim dua.
Txhim kho cov dej tuav: Kev tuav dej ntawm HPMC tuaj yeem ua kom cov dej ntim tau tag nrho ntawm phab ntsa, tsis txhob muaj cov kab nrib pleb lossis hmoov tshem tawm vim dej poob sai. Tshwj xeeb tshaj yog nyob rau hauv qhuav los yog kub-kub ib puag ncig, HPMC muaj peev xwm ncua dej evaporation, kom ntseeg tau zoo bonding ntawm putty rau substrate.
Txhim kho kev ua kom tawg: Thaum lub sij hawm ziab, lub putty tuaj yeem tawg vim qhov dej tsis sib xws. HPMC, los ntawm nws lub peev xwm tuav dej tsis sib xws, tso cai rau cov putty kom qhuav ntau tus sib npaug, yog li txo qhov kev pheej hmoo ntawm kev tawg.
4. Daim ntawv thov hauv cov txheej txheem
HPMC tseem ua lub luag haujlwm hauv kev ua kom tuab, tuav dej thiab ruaj khov hauv cov txheej txheem dej.
Cov nyhuv Thickening: Hauv cov txheej txheem, HPMC feem ntau yog siv los kho cov viscosity ntawm txheej, ua rau cov txheej txheem ntau dua thaum txhuam los yog txau cov txheej txheem, thiab muaj qib zoo thiab ua haujlwm tau zoo. Nyob rau tib lub sijhawm, nws tuaj yeem tiv thaiv cov xim los ntawm sagging thiab xyuas kom meej cov nyhuv painting.
Kev tuav dej: HPMC tuaj yeem tiv thaiv cov txheej txheem ntawm evaporating sai heev thaum lub sij hawm tsim kho, uas cuam tshuam rau kev tsim kho kom zoo. Tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias los yog qhov cua tsis zoo, cov dej tuav ntawm HPMC tuaj yeem txhim kho kev tsim kho ntawm txheej txheej.
Stabilizing nyhuv: HPMC tseem tuaj yeem txhim kho kev ruaj ntseg ntawm cov txheej txheem, tiv thaiv delamination thiab nag lossis daus ntawm cov txheej thaum lub sij hawm ntev cia, thiab tswj cov uniformity thiab zoo stability ntawm txheej.
5. Kev siv hauv cov khoom siv cement
HPMC kuj tau siv dav hauv cov khoom siv cement precast thiab cov ntaub ntawv hauv pem teb tus kheej. Nws tuaj yeem txhim kho qhov tawg tsis kam, compressive zog thiab nto smoothness ntawm cov khoom cement.
Txhim kho kev ua kom tawg: Cov dej tuav ntawm HPMC ua kom cov cement yuav tsis tawg vim cov dej nrawm nrawm thaum lub sij hawm hardening txheej txheem, yog li txhim kho tag nrho cov khoom zoo thiab kav ntev ntawm cov khoom.
Txhim kho qhov zoo ntawm qhov chaw: HPMC ua rau saum npoo ntawm cov khoom cement smoother thiab smoother, txo cov tiam npuas thiab tawg, thiab txhim kho cov tsos zoo ntawm cov khoom tiav.
Txhim kho kev tsim kho: Hauv cov khoom siv hauv pem teb tus kheej, cov nyhuv thickening ntawm HPMC tuaj yeem txhim kho cov dej ntws ntawm cov khoom, ua rau hauv pem teb kev tsim kho kom zoo dua qub thiab du, thiab zam kev sib haum xeeb thiab tawg.
6. Lwm yam kev siv
Ntxiv rau cov ntawv thov tseem ceeb saum toj no, HPMC tseem ua lub luag haujlwm tseem ceeb hauv cov khoom siv dej tsis zoo, cov ntaub ntawv rwb thaiv tsev, cov tshuaj tua kab mob thiab lwm yam haujlwm. Ntawm cov ntaub ntawv tsis muaj dej, nws cov dej tuav thiab cov khoom thickening tuaj yeem txhim kho kev tsim kho thiab kev ua dej tsis zoo ntawm cov khoom; ntawm cov ntaub ntawv thermal rwb thaiv tsev, HPMC pab txhim kho lub zog sib txuas thiab ruaj khov ntawm cov khoom.
Kev siv dav ntawm HPMC hauv kev tsim kho yog vim nws lub cev zoo thiab tshuaj lom neeg. Raws li kev tsim kho tseem ceeb, HPMC tuaj yeem tsis tsuas yog txhim kho cov dej tuav, thickening thiab tawg tsis kam ntawm cov ntaub ntawv, tab sis kuj tseem txhim kho kev tsim kho thiab ua tiav cov khoom zoo. Hauv kev tsim kho niaj hnub no, txawm hais tias nws yog mortar, pobzeb nplaum, cov hmoov putty, coatings thiab cement khoom, HPMC plays lub luag haujlwm tsis tuaj yeem hloov tau, txhawb kev txhim kho thev naus laus zis ntawm cov khoom siv hauv tsev thiab txhim kho kev tsim kho.
Post lub sij hawm: Sep-13-2024