Ingaruka yibyibushye ya selile ya selile biterwa na: urugero rwa polymerisation ya selile ya selile, kwibanda kumuti, igipimo cyogosha, ubushyuhe nibindi bihe.Umutungo wa gelling wigisubizo wihariye kuri alkyl selulose nibiyikomokaho.Imiterere ya gelation ifitanye isano nurwego rwo gusimbuza, kwibanda kubisubizo hamwe ninyongera.Kuri hydroxyalkyl yahinduwe ikomokaho, imiterere ya gel nayo ifitanye isano nimpinduka ya hydroxyalkyl.Kubijyanye n'ubukonje buke MC na HPMC, hashobora gutegurwa 10% -15% igisubizo, ubukonje buciriritse MC na HPMC burashobora gutegurwa igisubizo 5% -10%, kandi ubukonje bwinshi MC na HPMC bushobora gutegura igisubizo cya 2% -3% gusa, kandi mubisanzwe ibyiciro bya viscosity ya selulose ether nayo yashyizwe hamwe na 1% -2% igisubizo.
Uburemere-buremereye bwa selile ya ether ifite ubushobozi bwo kubyimba cyane, kandi polymers ifite uburemere butandukanye bwa molekile ifite viscosité zitandukanye mugisubizo kimwe.Intego yo kwiyegereza irashobora kugerwaho gusa wongeyeho umubare munini wuburemere buke bwa selile selile.Ubukonje bwacyo ntaho butaniye nigipimo cyogosha, ubukonje bwinshi bugera ku ntego yo kwiyegereza, kandi amafaranga asabwa yongeweho ni make, kandi ubwiza buterwa no kubyimba neza.Kubwibyo, kugirango ugere kumurongo umwe, umubare runaka wa selile ya selile (kwibanda kumuti) hamwe nubushishozi bwibisubizo bigomba gukemurwa.Ubushyuhe bwa gel bwumuti nabwo bugabanuka kumurongo hamwe no kwiyongera kwumuti wibisubizo, hamwe na geles mubushyuhe bwicyumba nyuma yo kugera kumurongo runaka.Ubunini bwa HPMC buri hejuru cyane mubushyuhe bwicyumba.
Guhuzagurika birashobora kandi guhinduka muguhitamo ingano yingingo no guhitamo selile ya selile hamwe nimpamyabumenyi zitandukanye.Ibyo bita guhindura ni ukumenyekanisha urwego runaka rwo gusimbuza hydroxyalkyl matsinda kumiterere ya skeleton ya MC.Muguhindura indangagaciro zijyanye no gusimbuza ibintu bibiri byasimbuwe, ni ukuvuga, DS na MS ugereranije nindangagaciro zo gusimbuza methoxy na hydroxyalkyl amatsinda dukunze kuvuga.Ibikorwa bitandukanye bisabwa muri selile ya ether irashobora kuboneka muguhindura agaciro kagereranya indangagaciro zibiri.
Umuvuduko mwinshi wa selulose ether amazi yo mumazi afite thixotropy ndende, nayo nikintu gikomeye kiranga selile ether.Ibisubizo byamazi ya polymers ya MC mubisanzwe bifite pseudoplastique na non-thixotropic fluidity munsi yubushyuhe bwa gel, ariko imitungo ya Newtonian itemba mukigero gito.Pseudoplastique yiyongera hamwe nuburemere bwa molekuline cyangwa kwibumbira hamwe kwa selile ya ether, hatitawe ku bwoko bwinsimburangingo no kurwego rwo gusimburwa.Kubwibyo rero, selile ethers yo murwego rumwe rwijimye, ntakibazo MC, HPMC, HEMC, izahora igaragaza imiterere imwe ya rheologiya mugihe cyose ubushyuhe nubushyuhe bihoraho.Gele yubaka ikorwa mugihe ubushyuhe buzamutse, kandi tixotropique itemba cyane.Ubushuhe bwinshi hamwe na selile nkeya ya selile yerekana thixotropy ndetse no munsi yubushyuhe bwa gel.Uyu mutungo ufite akamaro kanini muguhindura kuringaniza no kugabanuka mukubaka inyubako ya minisiteri.
Hagomba gusobanurwa hano ko uko ubukonje bwa ether ya selulose, niko gufata amazi neza, ariko uko ubukonje bugenda bwiyongera, niko uburemere bwa molekuline bugereranije na selile ya selile, hamwe no kugabanuka gukwiranye kwayo, bigira ingaruka mbi kuri concentration ya minisiteri nibikorwa byubwubatsi.Iyo hejuru ya viscosity, niko bigaragara ingaruka zo kubyimba kuri minisiteri, ariko ntabwo ihwanye rwose.Bimwe mubiciriritse kandi bito, ariko selile yahinduwe ya selile ifite imikorere myiza mugutezimbere imbaraga zimiterere ya minisiteri itose.Hamwe no kwiyongera kwijimye, kugumana amazi ya selile ether biratera imbere.
Igihe cyo kohereza: Werurwe-20-2023