Kev cuam tshuam ntawm cellulose ether ntawm adhesion ntawm mortar

Taw qhia

Kev siv cellulose ether hauv mortar tau dhau los ua nrov hauv kev tsim kho kev lag luam. Cellulose ether yog ib qho polymer muab los ntawm cellulose, uas muaj nyob rau hauv cov nroj tsuag cell phab ntsa. Nws yog siv los ua ib qho ntxiv los txhim kho kev ua haujlwm ntawm cov khoom siv hauv tsev. Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv cellulose ether hauv mortar yog nws lub peev xwm los txhim kho cov khoom adhesion ntawm cov khoom.

Lub hom phiaj ntawm daim ntawv no yog los tham txog kev cuam tshuam ntawm cellulose ether ntawm adhesion ntawm mortar. Daim ntawv yuav pib los ntawm kev sib tham txog cov khoom ntawm cellulose ether thiab nws cuam tshuam qhov adhesion ntawm mortar. Tom qab ntawd nws yuav tham txog ntau hom cellulose ether thiab lawv cov khoom. Thaum kawg, daim ntawv yuav xaus los ntawm kev sib tham txog cov txiaj ntsig ntawm kev siv cellulose ether hauv mortar.

Cellulose Ether Properties

Cellulose ether yog cov dej-soluble polymer uas tau los ntawm cellulose. Nws yog feem ntau siv los ua ib qho ntxiv hauv cov ntaub ntawv tsim kho vim nws txhim kho cov khoom ntawm cov khoom. Lub polymer yog tsim los ntawm cov piam thaj molecules uas txuas nrog β-1,4-glycosidic daim ntawv cog lus. Cov cellulose ether molecules raug hloov kho kom haum rau cov kev siv tshwj xeeb.

Cellulose ether txhim kho qhov adhesion ntawm mortar los ntawm kev ua raws li kev khi. Nws tsub kom lub viscosity ntawm lub mortar, cia nws mus rau qhov chaw zoo dua. Cov cellulose ether molecules kuj muaj kev sib raug zoo rau dej, uas tso cai rau lawv nqus thiab khaws cov dej noo.

Hom Cellulose Ether

Muaj ntau hom cellulose ether uas siv hauv kev tsim kho kev lag luam. Peb hom kev siv feem ntau yog hydroxyethyl cellulose (HEC), methyl cellulose (MC), thiab carboxymethyl cellulose (CMC). Txhua hom cellulose ether muaj nws cov khoom tshwj xeeb, uas ua rau nws haum rau kev siv sib txawv.

Methyl Cellulose (MC)

Methyl cellulose yog ib hom cellulose ether uas feem ntau siv hauv kev tsim kho kev lag luam. Nws muaj cov khoom tuav dej zoo heev, uas ua rau nws tsim nyog siv rau hauv cov khib nyiab qhuav. MC kuj muaj cov nyhuv thickening thaum ntxiv rau hauv dej, ua rau nws zoo tagnrho rau siv hauv rendering thiab plastering mortars. Lwm cov cuab yeej ntawm MC yog nws lub peev xwm los txhim kho kev sib koom ua ke ntawm mortar, uas txhim kho nws cov khoom siv kho tshuab.

Hydroxyethyl Cellulose (HEC)

HEC yog lwm hom cellulose ether uas feem ntau siv hauv kev tsim kho kev lag luam. Nws yog lub npe hu rau nws cov khoom tuav dej zoo, uas ua rau nws tsim nyog siv rau hauv cov khoom ntub dej sib tov. Cov polymer kuj muaj cov nyhuv thickening thaum ntxiv rau hauv dej, ua rau nws zoo tagnrho rau siv hauv pobzeb nplaum thiab grouts. HEC txhim kho qhov adhesion ntawm mortar los ntawm kev ua raws li kev khi, uas ua rau nws muaj peev xwm ua raws li qhov chaw.

Carboxymethyl Cellulose (CMC)

CMC yog ib hom cellulose ether uas feem ntau siv hauv kev tsim kho kev lag luam. Nws yog lub npe hu rau nws cov dej tuav zoo heev, uas ua rau nws tsim nyog siv rau txhua hom mortars. CMC muaj viscosity siab, uas ua rau nws haum rau siv nyob rau hauv mortar uas yuav tsum tau ib tug high degree ntawm workability. Lub polymer kuj txhim kho qhov adhesion ntawm mortar los ntawm kev ua raws li kev khi.

Cov txiaj ntsig ntawm Kev Siv Cellulose Ether hauv mortar

Kev siv cellulose ether hauv mortar muaj ntau yam txiaj ntsig. Ua ntej, nws txhim kho qhov adhesion ntawm cov khoom, cia nws ua raws li qhov chaw zoo dua. Thib ob, nws txhim kho kev ua haujlwm ntawm cov mortar, ua kom yooj yim rau kev thov. Thib peb, nws txhim kho cov dej tuav cov khoom ntawm cov khoom, cia nws khaws nws cov khoom nyob rau lub sijhawm. Thaum kawg, nws txhim kho cov cuab yeej cuab tam ntawm lub mortar, ua kom nws durability.

Xaus

Cellulose ether yog cov dej-soluble polymer uas tau los ntawm cellulose. Nws yog feem ntau siv los ua ib qho ntxiv hauv cov ntaub ntawv tsim kho vim nws txhim kho cov khoom ntawm cov khoom. Lub polymer txhim kho qhov adhesion ntawm mortar los ntawm kev ua raws li kev khi, uas ua rau nws muaj peev xwm ua raws li qhov chaw. Muaj ntau hom cellulose ether uas tau siv hauv kev tsim kho kev lag luam thiab txhua hom muaj nws cov khoom tshwj xeeb. Cov txiaj ntsig ntawm kev siv cellulose ether hauv mortar suav nrog kev txhim kho adhesion, kev ua haujlwm, dej tuav, thiab cov khoom siv kho tshuab.