Nws yog qhov paub zoo tias kev tsim kho ntawm sab nrauv phab ntsa rwb thaiv tsev nyob rau lub caij ntuj no yuav tsum tau npaj tshwj xeeb thiab xav txog. Raws li cov ntaub ntawv siv hauv kev tsim kho muaj kev txhawj xeeb, hydroxypropyl methylcellulose (HPMC) yog cov khoom siv ntau yam uas tau siv dav hauv kev tsim kho kev lag luam vim nws cov khoom zoo thiab cov yam ntxwv.
HPMC yog cov hmoov tsis muaj tshuaj lom, tsis muaj ntxhiab, dawb uas tuaj yeem yaj sai sai hauv dej los ua cov kua dej ntshiab. Nws feem ntau yog siv los ua ib qho tseem ceeb hauv kev siv tshuaj khib nyiab qhuav. Nws tuaj yeem txhim kho qhov adhesion ntawm mortar thiab lub zog ntawm cov khoom siv hauv tsev. Tsis tas li ntawd, HPMC kuj tseem siv tau los ua kom ruaj khov thiab tuab rau cov khoom siv gypsum, xws li caulks, putty hmoov, thiab cov khoom siv kho kom zoo nkauj.
Nyob rau hauv kev tsim kho ntawm sab nrauv phab ntsa rwb thaiv tsev, HPMC tuaj yeem siv los ua ib feem tseem ceeb ntawm kev sib koom ua ke mortar rau cov ntaub ntawv rwb thaiv tsev, ua npuas ncauj thiab phab ntsa ua ke. Feem ntau, cov txheej txheem kev tsim kho yuav tsum siv cov khoom sib txuas rau saum npoo ntawm phab ntsa sab nrauv thiab txhim kho cov rwb thaiv tsev rau nws. Tsis tas li ntawd, qhov saum npoo yog coated nrog mesh thiab topcoat rau kev tiv thaiv zoo. Qhov zoo ntawm kev siv HPMC thaum lub sij hawm tsim kho tau piav qhia hauv qab no:
1. Ua kom adhesion.
Ib qho tseem ceeb tshaj plaws ntawm kev siv HPMC yog nws lub peev xwm los txhim kho adhesion. HPMC qhov tshwj xeeb muaj pes tsawg leeg pab nws tsim kom muaj kev sib raug zoo ntawm cov mortar thiab rwb thaiv tsev. Qhov no txhais tau hais tias kev tsim kho kom zoo yuav txhim kho, thaum kawg ua rau kev txhim kho kev rwb thaiv tsev ntau dua rau cov tsev.
2. Txhim kho kev ua haujlwm.
Lwm qhov zoo ntawm kev siv HPMC thaum lub sij hawm tsim kho yog tias nws txhim kho kev ua haujlwm ntawm cov mortar. Kev ua haujlwm tau hais txog qhov yooj yim ntawm kev tsim kho thiab kev ua haujlwm. Los ntawm kev ua kom sib tov smoother thiab kua ntau dua, HPMC txhim kho cov txheej txheem ntawm cov nplaum.
3. Cov dej tuav tau ntau dua.
Nyob rau hauv huab cua txias, noo noo nyob rau hauv mortar evaporates sai sai. Yog li ntawd, ib qho ntawm cov teeb meem tseem ceeb hauv kev tsim kho cov phab ntsa sab nraud thaum lub caij ntuj no yog los xyuas kom meej tias cov mortar tseem tsim tau thiab kev sib raug zoo. HPMC pab tswj cov dej noo ntawm cov mortar, yog li pab tswj nws txoj haujlwm. Qhov no ua kom cov mortar tseem muaj txiaj ntsig thoob plaws hauv kev tsim kho.
4. Txhim kho tag nrho qhov zoo.
Los ntawm kev txhim kho adhesion, workability thiab dej tuav, HPMC pab kom tag nrho cov zoo ntawm sab nrauv phab ntsa rwb thaiv tsev systems. Nws siv thaum lub sij hawm tsim kho tuaj yeem ua rau cov khoom zoo kawg nkaus, ua rau cov txheej txheem rwb thaiv tsev zoo dua thiab ruaj khov.
Nws tuaj yeem pom tau tias HPMC ua lub luag haujlwm tseem ceeb hauv kev tsim kho cov phab ntsa sab nraud thaum lub caij ntuj no. Nws cov khoom tshwj xeeb ua rau nws yog cov khoom siv zoo tshaj plaws rau kev txhim kho qhov zoo thiab kev ua haujlwm ntawm cov txheej txheem tsim kho.
Kev siv HPMC rau lub caij ntuj no sab nrauv phab ntsa rwb thaiv tsev yog ib qho kev txhim kho zoo uas tuaj yeem txhim kho tag nrho qhov zoo ntawm ib puag ncig tsim. Nws tuaj yeem muab cov rwb thaiv tsev zoo dua, ua haujlwm ntev thiab lub zog ua haujlwm rau cov tsev thiab cov tsev lag luam. Raws li kev tsim kho kev lag luam txuas ntxiv txhim kho thiab loj hlob, kev siv HPMC yuav tsis muaj qhov xav tsis thoob ua lub luag haujlwm tseem ceeb hauv kev muab cov kev daws teeb meem ruaj khov thiab muaj zog rau ib puag ncig tsim.
Post lub sij hawm: Sep-06-2023