Danko da abubuwan riƙe ruwa na ethers cellulose

Cellulose ether sau da yawa wani abu ne da ba makawa a cikin busassun gauraye turmi. Domin yana da mahimmanci mai kula da ruwa tare da kyawawan abubuwan riƙe ruwa. Wannan kayan ajiyar ruwa na iya hana ruwan da ke cikin romin jika daga ƙafewa da wuri ko kuma a shayar da shi, yana tsawaita lokacin aiki na turmi mai jika, tabbatar da cewa simintin ya cika ruwa sosai, don haka a ƙarshe tabbatar da kaddarorin injin turmi, wanda ke tabbatar da ingancin injin turmi. yana da fa'ida musamman ga ƙera turmi na bakin ciki (kamar plastering turmi) da turmi a cikin abubuwan da ke ɗaukar nauyi sosai (kamar tubalan kankare), yanayin zafi da bushewa.

Abubuwan riƙe ruwa na cellulose yana da alaƙa sosai da danko. Mafi girman danko na ether cellulose, mafi kyawun aikin riƙewar ruwa. Danko shine muhimmin siga na aikin MC. A halin yanzu, masana'antun MC daban-daban suna amfani da hanyoyi da kayan aiki daban-daban don gwada danko na MC, kuma manyan hanyoyin sune Haake Rotovisko, Hoppler, Ubbelohde da Brookfield. Don samfurin iri ɗaya, sakamakon ɗanko da aka auna ta hanyoyi daban-daban ya bambanta sosai, wasu ma sun bambanta. Sabili da haka, lokacin kwatanta danko, yana da mahimmanci a yi haka tsakanin hanyoyin gwaji iri ɗaya, gami da zafin jiki, rotor, da sauransu.

Gabaɗaya magana, mafi girman danko, mafi kyawun tasirin riƙewar ruwa. Duk da haka, mafi girman danko, mafi girman nauyin kwayoyin halitta na MC da kuma raguwa mai dacewa a cikin solubility, wanda yana da mummunan tasiri akan ƙarfin da aikin ginin turmi. Mafi girman danko, mafi bayyananniyar tasirin thickening akan turmi. Mafi girman danko, turmi mai jika zai kasance, duka a cikin ginin, kamar yadda aka nuna ta mai tsintsiya da mannewa mai girma zuwa ga substrate. Duk da haka, ba ya taimaka da yawa don ƙara ƙarfin tsarin tsarin jika da kanta. Lokacin da aka gina duka biyun, yana nuna aikin anti-sagging ba a bayyane yake ba. Akasin haka, wasu ƙananan danko zuwa matsakaici amma gyare-gyare na methyl cellulose ethers suna da kyakkyawan aiki wajen inganta ƙarfin tsarin jika.