I-Carboxymethyl cellulose CMC, isitashi se-sodium carboxymethyl (CMS), ixabiso lincinci (ukususela ekusebenzeni kwemveliso ngokwayo, i-CMC inqanaba elingaphantsi kwe-Fuying HPMC), i-carboxymethyl cellulose isetyenziselwa i-putty ye-low-grade powder kwiindonga zangaphakathi Phakathi kwazo. , ukugcinwa kwamanzi kunye nokuzinza kubi kakhulu kune-hydroxypropyl methylcellulose, ngoko ke ayinakusetyenziswa kwi-putty engenamanzi kunye ne-thermal yangaphandle yokuxuba umxube owomileyo.
Abantu abaninzi bacinga ukuba ezi cellulose ziyi-alkaline, kwaye i-samente kunye ne-lime calcium powder nazo ziyi-alkaline, kwaye bacinga ukuba zingasetyenziswa ngokudibeneyo, kodwa i-carboxymethyl cellulose kunye ne-sodium carboxymethyl starch ayizinto enye, kunye ne-chloroacetic acid esetyenziswa kwinkqubo yabo yokuvelisa. I-acidic, kwaye izinto eziseleyo kwinkqubo yokuvelisa i-cellulose zisabela nge-samente kunye ne-lime calcium powder, ngoko azikwazi ukudibanisa. Abavelisi abaninzi baye bafumana ilahleko enkulu ngenxa yoku, ngoko kufuneka kuhlawulwe ingqalelo. Ukusetyenziswa kwe-carboxymethyl cellulose kunye ne-hydroxypropyl methyl cellulose zifana kuphela, kodwa imisebenzi yazo ihluke kakhulu, kwaye izibonakaliso zobugcisa zimbini zikude. Ezona zixhobo ziphambili zimbini zingumqhaphu osulungekisiweyo ofanayo, kodwa izixhobo ezincedisayo, izixhobo zokuvelisa, kunye nokuhamba kwenkqubo ziyahluka. Izixhobo zokuvelisa kunye nenkqubo ye-hydroxypropyl methylcellulose zinzima kakhulu. Ezi zimbini azikho inkqubo yokuvelisa konke konke, kwaye ezinye izincedisi nazo zahlukile, ngoko ke ukusetyenziswa kwahlukile. Azinakutshintshwa, kwaye azinakudibaniswa kunye nomnye ukunciphisa iindleko.
I-Hydroxypropyl methylcellulose (hpmc) ineekhemikhali ezizinzile, ukumelana ne-mildew, ukugcinwa kwamanzi okugqwesileyo kunye nomphumo wokuqina, kwaye ayichaphazeli utshintsho lwe-pH. I-viscosity ye-100,000 ifanelekile kwi-putty powder, kunye ne-viscosity ye-150,000 ukuya kwi-200,000 ifanelekile kwi-putty powder. Kwidaka, ngokuyininzi kwandisa ipropati yokulinganisa kunye nokwakhiwa, kwaye inokunciphisa inani le-samente.
Umsebenzi kukuba udaka lwesamente lunexesha lokuqina, kwaye kufuneka lugcinwe ngexesha lokuqina, kwaye kufuneka lunikezelwe ngamanzi ukuze lugcinwe lufumile. Ngenxa yesiphumo sokugcinwa kwamanzi se-cellulose, amanzi afunekayo kwi-cement mortar solidification iqinisekisiwe ukusuka kumanzi okugcinwa kwe-cellulose, ngoko umphumo wokuqina unokufezekiswa ngaphandle kokugcinwa.
Ixesha lokuposa: Apr-21-2023