HEMC siv hauv Skim Coat

Cellulose etherHEMC yog Hydroxyethyl Methyl cellulose uas yog sivraws li ib tug thickening neeg sawv cev dej retention agent nyob rau hauv daim ntawv thov ntawmSkim Coat, vim lub thixotropy ntawm cellulose nws tus kheej, qhov sib ntxiv ntawmHEMCcellulose ether nyob rau hauv Skim Coat hmoov kuj coj mus rau thixotropy ntawm Skim tsho tiv no nrog dej. Qhov thixotropy no yog tshwm sim los ntawm kev puas tsuaj ntawm cov qauv xoob xoob ntawm cov khoom hauv Skim Coat hmoov. Cov qauv no yog tsim thaum so thiab disintegrates nyob rau hauv kev ntxhov siab. Qhov ntawd yog hais tias, viscosity txo qis ntawm kev ntxhov siab thiab rov zoo thaum so.

Thaum peb siv cellulose ether HEMC inSkim Coathmoov, feem ntau yuav muaj teeb meem, qhia rau peb tsis paub yog vim li castshwm sim hauv Skim Coathmoov!

Ib: Qhuav ceev. Qhov no yog qhov tseem ceeb ntawm cov nyiaj grey calcium thiab fiber ntau cov dej tuav tus nqi, tab sis kuj muaj feem xyuam rau cov phab ntsa qhuav.

Ob: tev thiab dov. Qhov no muaj feem xyuam rau cov dej tuav tus nqi, qhov tsawg viscosity ntawm cellulose yog nquag rau qhov teeb meem no los yog tsawg npaum li cas.

Peb: hmoov. Qhov no muaj feem xyuam rau cov nyiaj grey calcium, tab sis kuj muaj pes tsawg leeg ntawm cellulose thiab zoo ntawm kev sib raug zoo, reflected nyob rau hauv cov khoom dej tuav tus nqi, dej retention tus nqi yog tsawg, grey calcium hydration lub sij hawm tsis txaus, tshwm sim.

Plaub: blistering. Qhov no muaj feem xyuam rau cov av qhuav thiab flatness ntawm phab ntsa, tab sis kuj muaj feem xyuam rau kev tsim kho.

Tsib: koob point. Qhov no muaj feem xyuam rau cellulose, nws cov zaj duab xis tsim yog tsis zoo, tab sis kuj cov impurities nyob rau hauv cellulose thiab grey calcium muaj ib tug me ntsis cov tshuaj tiv thaiv, yog hais tias cov tshuaj tiv thaiv yog tsausmuag.Skim Coathmoov yuav nthuav qhia lub xeev ntawm taum curd residue. Tsis tuaj yeem nyob rau ntawm phab ntsa, tib lub sijhawm tsis muaj daim ntawv cog lus, ntxiv rau cellulose tov nrog cov khoom carboxylated kuj tshwm sim hauv qhov xwm txheej no.

Rau: volcanic qhov tsua thiab qhov me me. Qhov no yog pom tseeb hais txog qhov nro ntawm hydroxyehtyl ua methyl cellulose aqueous tov thiab qhov nro ntawm hydroxyethyl aqueous tov tsis pom tseeb rau kev kho lub teeb yuav zoo.

Xya:Skim Coatqhuav tom qab yooj yim tawg, yellowing. Qhov no muaj feem xyuam rau tus nqi ntawm grey calcium, tus nqi ntawm grey calcium, uas ua rau kom nce hardness ntawmSkim Coathmoov tom qab ziab, tsuas yog hardness tsis yooj yooj yim tawg, tshwj xeeb tshaj yog los ntawm sab nraud quab yuam yog yooj yim rau tawg. Kuj nrog grey calcium nyob rau hauv cov ntsiab lus calcium oxide yog siab.

Skim Coathnyav nyob rau hauv cov txheej txheem scraping?

Hauv qhov no, viscosity ntawm cellulose yog siab dhau. Qee cov tuam txhab siv 200 txhiab ntawm cellulose los ua putty. CovSkim Coatua nyob rau hauv txoj kev no yog siab viscosity, yog li nws xav tias hnyav thaum khawb. Sab hauv phab ntsa yuav dhuav nrog tus me nyuam lub tswv yim ntxiv kom muaj nuj nqis yog 3, 5 kilograms, viscosity yog 8, 100 txhiab.

Vim li cas covSkim Coatthiab mortar ua nrog tib viscosityHEMCcellulose nyob rau lub caij ntuj no thiab lub caij ntuj sov xav tias viscosity txawv?

Vim lub thermal gelation ntawm cov khoom, lub viscosity ntawm cov khoom yuav maj mam txo nrog qhov nce ntawm qhov kub thiab txias. Thaum qhov kub siab tshaj qhov kub ntawm gel ntawm cov khoom, cov khoom yuav raug precipitated tawm hauv dej, yog li poob viscosity. Nyob rau lub caij ntuj sov, chav tsev kub feem ntau yog siab tshaj 30 degrees, uas txawv ntau ntawm qhov kub ntawm lub caij ntuj no, yog li qhov viscosity xav tias qis. Nyob rau lub caij ntuj sov, nws raug nquahu kom xaiv cov khoom uas muaj viscosity ntau dua los yog ua kom cov cellulose ntau dua, thiab tom qab ntawd xaiv cov khoom uas muaj cov gel kub dua.