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 afunwe yi-substrate, ukwandisa ixesha elisebenzayo lodaka olumanzi, ukuqinisekisa ukuba i-samente igcwele amanzi ngokupheleleyo, kwaye ekugqibeleni iqinisekise iimpawu zomatshini zodaka, ezinokuthi zenzeke. iluncedo ngakumbi kulwakhiwo lwezidaka ezibhityileyo (ezifana nodaka lokutyabeka) kunye nodaka kwiindawo ezifunxa kakhulu (ezifana neebhloko zekonkrithi ezifakwe umoya), ubushushu obuphezulu 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 njalo 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