I-ether ye-cellulose idla ngokuba yinto eyimfuneko kwiimbumba ezinomxube owomileyo. Ngenxa yokuba i-arhente yokugcina amanzi ebalulekileyo eneempawu ezigqwesileyo zokugcina amanzi. Le propati yokugcinwa kwamanzi inokuthintela amanzi kudaka olumanzi ukuba aphume ngaphambi kwexesha okanye afunxwe yi-substrate, ukwandisa ixesha elisebenzayo lodaka olumanzi, ukuqinisekisa ukuba i-samente ifakwe ngokupheleleyo, kwaye ekugqibeleni iqinisekise iimpawu zomatshini zodaka, oluyinzuzo ngakumbi kulwakhiwo lodaka olucekethekileyo (olufana ne-plastering mortars) kunye nodaka oluphezulu lwe-concrete. ubushushu kunye neemeko ezomileyo.
Ipropati yokugcina amanzi ye-cellulose ihambelana kakhulu ne-viscosity yayo. Iphezulu i-viscosity ye-cellulose ether, ngcono ukugcinwa kwamanzi ukusebenza. I-Viscosity yiparameter ebalulekileyo yokusebenza kweMC. Okwangoku, abavelisi be-MC abahlukeneyo basebenzisa iindlela ezahlukeneyo kunye nezixhobo zokuvavanya i-viscosity ye-MC, kwaye iindlela eziphambili ziyi-Haake Rotovisko, i-Hoppler, i-Ubbelohde kunye ne-Brookfield. Kwimveliso efanayo, iziphumo ze-viscosity ezilinganiswa ngeendlela ezahlukeneyo ziyahluka kakhulu, kwaye ezinye zihluke kakhulu. Ngoko ke, xa uthelekisa i-viscosities, kubalulekile ukwenza oko phakathi kweendlela ezifanayo zokuvavanya, kubandakanywa ukushisa, i-rotor, njl.
Ngokuqhelekileyo, okukhona i-viscosity iphezulu, ingcono isiphumo sokugcina amanzi. Nangona kunjalo, ukuphakama kwe-viscosity, ukuphakama kwe-molecular weight ye-MC kunye nokunciphisa okuhambelanayo kwi-solubility yayo, enefuthe elibi kumandla kunye nokusebenza kokwakhiwa kodaka. Ukuphakama kwe-viscosity, kucacile ngakumbi umphumo wokutyeba kumdaka. Ukuphakama kwe-viscosity, i-sticker yodaka olumanzi luya kuba, zombini ekwakhiweni, njengoko kuboniswe yi-scraper encangathi kunye nokunamathela okuphezulu kwi-substrate. Nangona kunjalo, akuncedi kakhulu ukwandisa amandla okwakhiwa kodaka olumanzi ngokwalo. Xa zombini ulwakhiwo, ibonisa ukusebenza anti-sagging akucacanga. Ngokuchasene noko, i-viscosity ethile ephantsi ukuya ephakathi kodwa i-methyl cellulose ethers elungisiweyo inomsebenzi ogqwesileyo ekuphuculeni amandla esakhiwo sodaka olumanzi.
Ixesha lokuposa: Mar-10-2022