HPMC (Hydroxypropyl Methylcellulose) yog ib yam khoom siv polymer uas siv dav hauv kev tsim kho thiab muaj cov yam ntxwv tshwj xeeb ntawm lub cev thiab tshuaj. HPMC feem ntau siv los ua cov khoom ntxiv hauv kev lag luam tsim kho kom txhim kho cov yam ntxwv ntawm cov ntaub ntawv tsim kho, tshwj xeeb tshaj yog hauv cov mortars, hmoov putty, tshuaj pleev xim thiab cov khoom cement.
1. Daim ntawv thov hauv mortar
Hauv cov tshuaj khib siv hauv kev tsim kho, HPMC siv dav los txhim kho kev ua haujlwm ntawm kev tsim kho. Nws cov yam ntxwv khaws dej, ua kom tuab thiab tiv thaiv kev poob qis ua rau HPMC ua lub luag haujlwm tseem ceeb hauv cov tshuaj khib sib xyaw ua tiav, cov nplaum rau cov vuas pobzeb, cov tshuaj khib masonry thiab lwm yam teb.
Kev khaws dej: HPMC tuaj yeem txhim kho lub peev xwm khaws dej ntawm cov mortar thiab tiv thaiv dej kom tsis txhob evaporate sai dhau, yog li ua kom muaj dej txaus ntawm cov cement thiab txhim kho lub zog sib txuas thiab kev tawg ntawm cov mortar. Qhov no yog qhov tseem ceeb tshwj xeeb hauv qhov chaw kub siab kom tsis txhob tawg thiab poob zog los ntawm kev qhuav ntau dhau ntawm cov mortar.
Ua kom tuab: HPMC tuaj yeem kho qhov fluidity thiab viscosity ntawm cov mortar, ua rau cov mortar du thaum lub sijhawm thov thiab yooj yim dua rau kev tsim kho. Tib lub sijhawm, nws kuj tseem tuaj yeem txhim kho qhov ntub thiab lo ntawm cov mortar rau cov khoom siv hauv paus, kom ntseeg tau tias cov mortar tuaj yeem txuas nrog phab ntsa lossis lwm yam khoom siv hauv paus.
Tiv thaiv kev sag: HPMC tuaj yeem tiv thaiv cov mortar los ntawm sagging lossis sagging thaum tsim kho ntawm cov nto ntsug, tshwj xeeb tshaj yog thaum tsim cov txheej tuab. Nws cov haujlwm hloov kho viscosity tuaj yeem ua rau cov mortar nyob rau hauv zoo thaum lub sijhawm tsim kho facade thiab tsis yooj yim poob tawm.
2. Daim ntawv thov hauv cov nplais pobzeb ceramic
Ntawm cov nplaum rau cov vuas ceramic, HPMC feem ntau yog siv los txhim kho kev ua haujlwm ntawm cov vuas ceramic thiab kev ua haujlwm ntawm cov vuas ceramic. Hauv kev tsim vaj tsev niaj hnub, cov vuas ceramic siv dav rau kev kho kom zoo nkauj ntawm phab ntsa thiab hauv pem teb, yog li qhov zoo ntawm cov nplaum yog qhov tseem ceeb.
Txhim kho lub zog sib txuas: HPMC ua kom muaj kev sib xyaw ua ke ntawm cov cement los ntawm nws cov dej khaws cia thiab cov teebmeem tuab, yog li txhim kho lub zog sib txuas ntawm cov nplaum thiab cov vuas ceramic thiab cov khoom siv. Qhov no tsis yog tsuas yog ua kom lub neej ua haujlwm ntev dua, tab sis kuj tiv thaiv lawv kom tsis txhob poob vim tsis txaus lo.
Lub sijhawm qhib ntev dua: Thaum lub sijhawm tso cov vuas ceramic, cov neeg ua haujlwm tsim kho feem ntau xav tau sijhawm txaus los kho qhov chaw ntawm cov vuas ceramic. Kev ntxiv HPMC tuaj yeem ncua lub sijhawm qhib ntawm cov nplaum, muab sijhawm ntau dua rau cov neeg ua haujlwm tsim kho los ua haujlwm thiab kho, yog li txhim kho kev ua haujlwm zoo ntawm kev tsim kho.
Tiv thaiv kev swb: Thaum muab cov vuas ceramic tso rau ntawm lub ntsej muag, HPMC tuaj yeem tiv thaiv cov vuas ceramic kom tsis txhob swb thiab tswj lawv qhov ruaj khov thaum lub sijhawm tsim kho. Qhov no tsis yog tsuas yog txo qhov nyuaj ntawm kev tsim kho, tab sis kuj txhim kho qhov zoo ntawm kev tsim kho.
3. Daim ntawv thov hauv cov hmoov putty
Lub luag haujlwm ntawm HPMC hauv cov hmoov putty kuj tseem ceeb heev, feem ntau yog hauv kev txhim kho kev ua haujlwm, kev khaws dej thiab kev tawg tsis kam ntawm putty.
Kev ua haujlwm tau zoo dua: Ntxiv HPMC rau hauv cov hmoov putty tuaj yeem ua rau daim ntawv thov ntawm putty du thiab zam kev khawb, qhuav thiab lwm yam tshwm sim thaum lub sijhawm tsim kho. Tib lub sijhawm, qhov fluidity thiab ductility ntawm putty kuj tuaj yeem txhim kho, ua rau kev tsim kho yooj yim dua.
Kev khaws dej kom zoo dua: Kev ua haujlwm khaws dej ntawm HPMC tuaj yeem ua kom ntseeg tau tias cov putty tau hydrated tag nrho ntawm phab ntsa, zam kev tawg lossis hmoov tshem tawm vim dej poob sai. Tshwj xeeb tshaj yog nyob rau hauv qhuav lossis kub siab, HPMC tuaj yeem ncua dej evaporation, xyuas kom meej zoo gluing ntawm putty rau substrate.
Txhim kho kev tiv thaiv kab nrib pleb: Thaum lub sijhawm ziab, cov putty yuav tawg vim yog dej poob tsis sib npaug. HPMC, los ntawm nws lub peev xwm khaws dej sib xws, tso cai rau cov putty kom qhuav sib npaug, yog li txo qhov kev pheej hmoo ntawm kev tawg.
4. Daim ntawv thov hauv cov txheej txheem
HPMC kuj tseem ua lub luag haujlwm hauv kev ua kom tuab, khaws dej thiab ruaj khov hauv cov txheej txheem dej.
Cov nyhuv ua kom tuab: Hauv cov txheej txheej, HPMC feem ntau yog siv los kho qhov viscosity ntawm cov txheej, ua rau cov txheej sib xws ntau dua thaum lub sijhawm txhuam lossis txau, thiab muaj kev sib npaug zoo thiab ua haujlwm tau zoo. Tib lub sijhawm, nws tuaj yeem tiv thaiv cov xim kom tsis txhob poob thiab ua kom cov nyhuv pleev xim.
Kev khaws dej: HPMC tuaj yeem tiv thaiv cov txheej kom tsis txhob evaporate sai dhau thaum lub sijhawm tsim kho, uas cuam tshuam rau qhov zoo ntawm kev tsim kho. Tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias siab lossis cov huab cua tsis zoo, kev khaws dej ntawm HPMC tuaj yeem txhim kho qhov cuam tshuam ntawm kev tsim kho ntawm cov txheej.
Cov nyhuv ruaj khov: HPMC kuj tseem tuaj yeem txhim kho qhov ruaj khov ntawm cov txheej txheej, tiv thaiv kev tawg thiab nag ntawm cov txheej txheej thaum lub sijhawm khaws cia ntev, thiab tswj qhov sib xws thiab zoo ruaj khov ntawm cov txheej txheej.
5. Daim ntawv thov hauv cov khoom siv cement
HPMC kuj tseem siv dav hauv cov khoom siv cement precast thiab cov ntaub ntawv hauv pem teb uas nws tus kheej leveling. Nws tuaj yeem txhim kho qhov tsis kam ntawm kev tawg, lub zog compressive thiab qhov du ntawm cov khoom cement.
Kev tiv thaiv kab nrib pleb zoo dua: Qhov cuam tshuam ntawm dej ntawm HPMC ua kom ntseeg tau tias cov cement yuav tsis tawg vim yog dej ua pa sai sai thaum lub sijhawm ua kom tawv, yog li ua kom zoo dua qhov zoo thiab ruaj khov ntawm cov khoom.
Txhim kho qhov zoo ntawm qhov chaw: HPMC ua rau qhov chaw ntawm cov khoom cement du thiab du, txo qhov tshwm sim ntawm cov npuas thiab cov kab nrib pleb, thiab txhim kho qhov zoo ntawm cov khoom tiav.
Txhim kho kev ua tau zoo ntawm kev tsim kho: Hauv cov ntaub ntawv hauv pem teb uas nws tus kheej ua kom tiaj tus, qhov ua kom tuab ntawm HPMC tuaj yeem txhim kho qhov fluidity ntawm cov khoom, ua rau kev tsim kho hauv pem teb zoo ib yam thiab du, thiab zam kev sib sau tsis sib xws thiab tawg.
6. Lwm yam kev siv
Ntxiv rau cov ntawv thov tseem ceeb saum toj no, HPMC kuj tseem ua lub luag haujlwm tseem ceeb hauv cov ntaub ntawv tiv thaiv dej, cov ntaub ntawv rwb thaiv tsev, cov neeg sawv cev caulking thiab lwm yam teb. Ntawm cov ntaub ntawv tiv thaiv dej, nws cov dej khaws cia thiab cov khoom tuab tuaj yeem txhim kho kev ua haujlwm ntawm kev tsim kho thiab cov nyhuv tiv thaiv dej ntawm cov khoom; ntawm cov ntaub ntawv rwb thaiv tsev thermal, HPMC pab txhim kho lub zog sib txuas thiab ruaj khov ntawm cov khoom.
Kev siv HPMC dav hauv kev tsim kho yog vim nws cov khoom siv lub cev thiab tshuaj zoo heev. Ua ib qho khoom siv tseem ceeb hauv kev tsim kho, HPMC tsis yog tsuas yog txhim kho kev khaws cia dej, thickening thiab tawg tsis kam ntawm cov ntaub ntawv, tab sis kuj tseem txhim kho kev ua haujlwm ntawm kev tsim kho thiab cov khoom tiav zoo. Hauv kev tsim kho niaj hnub, txawm tias nws yog mortar, vuas nplaum, hmoov putty, txheej thiab cov khoom cement, HPMC ua lub luag haujlwm tseem ceeb, txhawb kev nce qib ntawm cov ntaub ntawv tsim kho thiab txhim kho kev ua haujlwm ntawm kev tsim kho.
Lub sijhawm tshaj tawm: Cuaj hlis-13-2024