Rau sab nrauv phab ntsa rwb thaiv tsev, nws feem ntau suav nrog cov khoom sib txuas ntawm cov rwb thaiv tsev thiab cov plastering mortar uas tiv thaiv qhov chaw ntawm lub rwb thaiv tsev. Ib qho kev sib txuas zoo mortar yuav tsum tau yooj yim do, yooj yim rau kev khiav lag luam, tsis lo rau riam, thiab muaj zoo anti-sag. nyhuv, zoo pib adhesion thiab lwm yam.
Kev sib txuas thiab plastering mortar yuav tsum tau cellulose kom muaj cov yam ntxwv nram qab no: zoo encapsulation thiab workability rau muab tub lim; ib tug tej yam huab cua entrainment tus nqi, uas yuav ua rau kom tus nqi tso zis ntawm lub mortar; Lub sijhawm ua haujlwm ntev; zoo anti-sag nyhuv Thiab lub peev xwm wetting rau txawv puag nto; Lub slurry stability yog qhov zoo, thiab qhov sib xws ntawm cov slurry sib xyaw yog khaws cia rau lub sijhawm ntev. Shandong "Chuangyao" hom hydroxypropyl methylcellulose tuaj yeem ua tau raws li qhov xav tau ntawm kev sib txuas thiab plastering mortar daim ntaub ntawv.
Hydroxypropyl methylcellulose muaj cov dej tuav tau zoo hauv kev sib txuas thiab plastering mortar. Kev tuav dej siab tuaj yeem ua rau cov cement hydrate, ua kom lub zog sib txuas, thiab tib lub sijhawm, nws tuaj yeem txhim kho lub zog tensile thiab shear zog. Txhim kho kev tsim kho zoo heev thiab txhim kho kev ua haujlwm zoo.
Hydroxypropyl methylcellulose plays lub luag haujlwm tseem ceeb hauv kev sib txuas thiab ua kom muaj zog hauv cov ntaub ntawv thermal rwb thaiv tsev mortar, ua rau cov tshuaj khib nyiab yooj yim dua, txhim kho kev ua haujlwm, thiab tiv taus ntau dua. Lub sijhawm ua haujlwm, txhim kho shrinkage thiab tawg tsis kam, txhim kho qhov zoo, txhim kho daim ntawv cog lus.
Nyob rau hauv dej los yog lwm yam homogeneous kua nruab nrab, hydroxypropyl methylcellulose yuav dispersed mus rau hauv zoo hais, tshem tawm nyob rau hauv lub dispersion nruab nrab thiab yaj, tsis ua rau nag lossis daus thiab agglomeration, thiab muaj kev tiv thaiv colloid thiab stabilizing teebmeem. Yao lub tuam txhab tuaj yeem kho cov txheej txheem tsim khoom thiab tswj lub sijhawm viscosity raws li cov neeg siv khoom xav tau.
Post lub sij hawm: Oct-13-2022