Silicate xim yuav kho lub ntsej muag ntawm lub tsev

Silicate xim yuav kho lub ntsej muag ntawm lub tsev
Silicate xim yuav kho lub ntsej muag ntawm lub tsev

Video: Silicate xim yuav kho lub ntsej muag ntawm lub tsev

Video: Silicate xim yuav kho lub ntsej muag ntawm lub tsev
Video: Koj mus ua neej zoo li cas lawm 11/16/2018 2024, Hlis ntuj nqeg
Anonim

Txheej raws li cov xim silicate muaj ntau yam khoom tshwj xeeb: lawv muaj vapor permeability siab thiab qhuav sai. Cov dej noo uas khaws cia hauv phab ntsa hauv lub caij ntuj no tsis rhuav tshem cov cib thiab plaster. Lawv dhau carbon dioxide zoo thiab tsis ncua cov txheej txheem hardening ntawm plaster. Cov txheej tsis kub hnyiab, ntxiv rau, nws tsis tawm ntau yam teeb meem. Xws li cov xim silicate tau zoo siv rau ntawm qhov chaw nrog cov khoom alkaline (lime plasters). Cov khoom zoo no ua kom lub neej ntev ntev.

cov xim silicate
cov xim silicate

Qhov tsis zoo ntawm cov xim no suav nrog qhov tsis tuaj yeem siv rau cov txheej txheem qub qub vim tsis muaj qhov ua tiav.

Silicate xim yog tshem tawm cov fillers thiab pigments nyob rau hauv aqueous daws ntawm sodium thiab poov tshuaj silicates. silicates yog ntsevtsis muaj zog silicic acid. Lawv tsis muaj zog ntau dua li cov thee, yog li ntawd, lawv tau yooj yim hloov chaw thaum cuam tshuam nrog carbon dioxide, uas muaj nyob hauv huab cua. Lub resulting sol ntawm silicic acid sai poob dej thiab tsim ib tug ntxeem tau txheej, uas muaj silicon oxide. Thaum lub sij hawm tsim ntawm silicic acid thiab nws lub cev qhuav dej, kev sib cuam tshuam ntawm cov txheej txheem tshiab nrog cov xim ntawm cov xim, cov muab tub lim, thiab ib qho inorganic substrate raug pom. Tshwj xeeb tshaj yog nquag silicic acid thiab silicates cuam tshuam nrog zinc thiab calcium compounds. Xav tias calcium hydroxide yog cov khoom tseem ceeb ntawm plasters thiab cov pob zeb, kev kho ntawm cov chaw no nrog cov xim silicate ua rau tsim cov txheej txheem monolithic ntawm cov tshuaj sib xyaw ua ke.

Kev siv cov xim silicate
Kev siv cov xim silicate

Silicate xim, lossis lawv cov khoom, feem ntau nyob ntawm cov khoom ntawm cov iav kua siv. Cov xim tsis muaj dej zoo tshaj plaws tuaj yeem tau txais los ntawm cov iav potash. Muaj lwm yam silicates, tab sis lawv kim heev rau kev tsim cov xim thiab cov kua roj vanish. Txhawm rau kom cov xim silicate khaws lawv cov txiaj ntsig thiab kom lawv tuaj yeem siv rau cov txheej txheem organic, acrylic dispersions yog tom qab ntawd nkag mus rau hauv lawv cov muaj pes tsawg leeg, vim cov xim twg tau txais uas muaj vapor permeability, zoo heev adhesion rau qub organic-raws li. coatings thiab ntxhia nto..

Ib hom xim tshiab thiab cov kua roj vanish txheej - cov xim silicate - tau siv dav hauv peb lub sijhawm. Thaum aluminium lossis zinc ntxiv rau lawv, lawvtau txais cov khoom tiv thaiv corrosion. Hom txheej no yog siv rau ntawm phab ntsa plastered. Tsis tas li ntawd, lawv cuam tshuam zoo nrog pob zeb, pob zeb, ceramic, slate thiab lwm qhov chaw, nkag mus zoo rau hauv cov qauv ntawm qhov chaw kho, tab sis tib lub sijhawm lawv muaj lub zog zais tsis zoo, thiab yog li ntawd yuav tsum tau siv cov xim ntau ntxiv.

ceev faj thaum ua haujlwm nrog cov xim silicate
ceev faj thaum ua haujlwm nrog cov xim silicate

Ceev faj thaum ua haujlwm nrog cov xim silicate. Lawv muaj txog li kaum feem pua alkali. Nyob rau hauv rooj plaub ntawm kev sib cuag ntawm daim tawv nqaij los yog ob lub qhov muag, o tuaj yeem tshwm sim. Yog li ntawd, thaum ua hauj lwm nrog cov xim no, nws yog ib qhov tsim nyog los tiv thaiv koj ob lub qhov muag. Nws yuav tsis yog superfluous siv lub tshuab ua pa. Yog tias cov xim nkag mus rau hauv koj lub qhov muag, koj yuav tsum tam sim ntawd yaug lawv nrog dej txias, thiab tom qab qhov kawg ntawm kev ua hauj lwm ntxuav nrog xab npum thiab dej.

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