Tasirin kauri nacellulose etherya dogara da: matakin polymerization na cellulose ether, yawan ruwan da ke cikinsa, saurin yankewa, zafin jiki da sauran yanayi. Halin geling na maganin ya keɓance ga alkyl cellulose da kayan da aka gyara. Halayen gelation suna da alaƙa da matakin maye gurbinsa, yawan ruwan da aka haɗa da ƙari. Ga kayan da aka gyara na hydroxyalkyl, halayen gel ɗin suma suna da alaƙa da matakin gyara na hydroxyalkyl. Ga ƙarancin ruwan da ke cikin MC da HPMC, ana iya shirya maganin 10%-15%, matsakaicin ruwan da ke cikin MC da HPMC za a iya shirya maganin 5%-10%, kuma babban ruwan da ke cikin MC da HPMC za su iya shirya maganin 2%-3% kawai, kuma yawanci ana sanya rarrabawar ruwan da ke cikin cellulose ether da maganin 1%-2%.
Ether mai nauyin ƙwayoyin halitta mai yawa yana da ƙarfin kauri mai yawa, kuma polymers masu nauyin ƙwayoyin halitta daban-daban suna da ɗanɗano daban-daban a cikin maganin tattarawa iri ɗaya. Ana iya cimma ɗanɗano da ake so ne kawai ta hanyar ƙara yawan ƙwayoyin cellulose ether mai ƙarancin nauyin ƙwayoyin halitta. Ɗanɗanonsa ba shi da dogaro da yawan yankewa, kuma babban ɗanɗano yana kaiwa ga ɗanɗano da ake so, wanda ke buƙatar ƙarancin ƙari, kuma ɗanɗano ya dogara da ingancin kauri. Saboda haka, don cimma daidaito, dole ne a tabbatar da wani adadin cellulose ether (tarin maganin) da ɗanɗano da ake so. Zafin gel na maganin kuma yana raguwa a layi tare da ƙaruwar yawan maganin, da kuma gels a zafin ɗaki bayan ya kai wani adadin. Yawan gelling na HPMC yana da yawa a zafin ɗaki.
Haka kuma ana iya daidaita daidaito ta hanyar zaɓar girman barbashi da zaɓar ƙwayoyin cellulose masu matakai daban-daban na gyare-gyare. Abin da ake kira gyare-gyare shine gabatar da wani mataki na maye gurbin ƙungiyoyin hydroxyalkyl akan tsarin kwarangwal na MC. Ta hanyar canza ƙimar maye gurbin dangi na ƙungiyoyin biyu, wato, ƙimar maye gurbin dangi na DS da MS na ƙungiyoyin methoxy da hydroxyalkyl waɗanda muke yawan faɗi. Ana iya samun buƙatun aiki daban-daban na cellulose ether ta hanyar canza ƙimar maye gurbin dangi na ƙungiyoyin biyu.
Maganin ruwa mai ƙarfi na cellulose ether yana da babban thixotropy, wanda kuma babban halayyar cellulose ether ne. Maganin ruwa na polymers na MC yawanci suna da pseudoplastic da non-thixotropic fluidity ƙasa da zafin gel ɗinsu, amma halayen kwararar Newtonian a ƙarancin ƙimar yankewa. Pseudoplasticity yana ƙaruwa tare da nauyin kwayoyin halitta ko yawan cellulose ether, ba tare da la'akari da nau'in maye gurbin da matakin maye gurbin ba. Saboda haka, cellulose ethers masu matakin danko iri ɗaya, komai MC, HPMC, HEMC, koyaushe za su nuna irin wannan halayen rheological matuƙar yawan maida hankali da zafin jiki suna nan. Ana samar da gels na tsari lokacin da zafin jiki ya tashi, kuma kwararar thixotropic mai yawa suna faruwa. Babban maida hankali da ƙarancin danko cellulose ethers suna nuna thixotropy ko da ƙasa da zafin gel. Wannan kadarar tana da babban fa'ida ga daidaitawar daidaitawa da lanƙwasa a cikin ginin turmi na gini.
Ya kamata a yi bayani a nan cewa mafi girman dankocellulose ether, yana da kyau a riƙe ruwa, amma mafi girman ɗanɗano, mafi girman nauyin ƙwayoyin cellulose ether, da kuma raguwar narkewarsa daidai gwargwado, wanda ke da mummunan tasiri ga yawan turmi da aikin gini. Yayin da ɗanɗano ya fi girma, haka nan tasirin kauri a turmi yake bayyana, amma ba shi da cikakken daidaito. Wasu matsakaici da ƙarancin ɗanɗano, amma cellulose ether da aka gyara yana da kyakkyawan aiki wajen inganta ƙarfin tsarin turmi mai danshi. Tare da ƙaruwar ɗanɗano, riƙewar ruwa na cellulose ether yana inganta.
Lokacin Saƙo: Afrilu-28-2024