Danko da abubuwan riƙe ruwa na ethers cellulose

Cellulose ether sau da yawa wani abu ne da ba dole ba ne a cikin busassun gauraye turmi. Domin yana da mahimmanci mai kula da ruwa tare da kyawawan abubuwan riƙe ruwa. Wannan ruwa riƙe dukiya iya hana ruwa a cikin rigar turmi daga evaporating prematurely ko ana tunawa da substrate, tsawanta da operable lokaci na rigar turmi, tabbatar da ciminti ne cikakken hydrated, kuma ta haka kyakkyawan tabbatar da inji Properties na turmi, wanda shi ne musamman da amfani ga gina bakin ciki turmi (kamar plastering turmi (kamar plastering turmi) da kuma plastering substrate sosai sha tare da wani substrate da kuma plastering. high zafin jiki da bushe yanayi.

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.