Methycellseliulose (MC) na CarboxymethylcellSelcellsells (CMC) ni ibinyabuzima bibiri bikunze kugaragara, bikoreshwa cyane mu biribwa, ubuvuzi, kubaka, kubaka imiti n'izindi nzego. Nubwo bose bahinduwe imiti kuva selile kamere, hari itandukaniro ryingenzi mumiterere yimiti, kumubiri no mumiti, no gusaba.
1. Imiterere yimiti hamwe nuburyo bwo gutegura
Methylcellse ikorwa no gufatanya na selile hamwe na methyl chloride (cyangwa methanol) mubihe bya alkaline. Muri iki gikorwa, igice cyitsinda rya hydroxyl (-Oh) muri molekile ya selile zisimburwa nubukoresha (-Ibikoresho bigize methylcellse. The degree of substitution (DS, the number of substituents per glucose unit) of methylcellulose determines its physical and chemical properties, such as solubility and viscosity.
Carboxymethylcellse ikorwa no kubyaza kuri churilose hamwe na acide ya chloroacetike, kandi hydroxyl itsinda ryasimbuwe na Hydroxyl Itsinda rya CARBoxymethyl (-CH₂cooh). Urwego rwo gusimbuza no kurwego rwa polymerizira (DP) ya CMC igira ingaruka ku kukengurwa no kugaragara mumazi. Ubusanzwe CMC ibaho muburyo bwa sodium umunyu, yitwa sodium carboxymethylcellslcellse (nacmc).
2. Umubiri na shimi
Kukemeranya: Methylcellses ashonga mumazi akonje, ariko atakaza igisubizo kandi akora gel mumazi ashyushye. Iyi mitima yubushyuhe itanga imikoreshereze nkigituba no gusaza mu gutunganya ibiryo. CMC irashonga mumazi akonje n'amazi ashyushye, ariko viscolity yimico yacyo igabanuka nkuko ubushyuhe bwiyongera.
Viscosity: viscosity of byombi bigira ingaruka kurwego rwo gusimbuza no kwibanda kumuti. Uruzinduko rwa MC rwiyongera rwa mbere hanyuma rugabanuka nkubushyuhe bwiyongera, mugihe ubushyuhe bwa CMC bugabanuka nkubushyuhe bwiyongera. Ibi bibaha ibyiza byabo muburyo butandukanye bwinganda.
PH Guhagarara: CMC ikomeza guhagarara hejuru ya PH nini, cyane cyane mubihe bya alkaline, bikaba bikunzwe cyane nkintandaro hamwe na farumasi. MC irahagaze neza mubihe bitabogamye kandi byoroshye alkaline, ariko bizagutesha agaciro acide ikomeye cyangwa alkalis.
3. Ahantu ho gusaba
Inganda zibiribwa: methycellsellse ikunze gukoreshwa mubiryo nkumubyimba, emalifier na stibar. Kurugero, irashobora kwigana uburyohe nuburyo bwo kubyimba iyo itanga umusaruro mwinshi. Carboxymethylcellse ikoreshwa cyane mu binyobwa, ibicuruzwa bitetse n'ibicuruzwa by'amata nk'igituba no mu kigero cyo gukumira amazi no kunoza uburyohe.
Inganda za farumasi: methylcellse ikoreshwa mugutegura ibinini bya farumasi nkumuharuro no gusenyuka, kandi nkabakozi barinda ijisho rya ophthalmic. CMC ikoreshwa cyane mubuvuzi kubera bioquatility yayo nziza, nko gutegura ibiyobyabwenge bikarangirwa no gufatira ibitonyanga byamaso.
Inganda n'imiti: MC ikoreshwa cyane mubikoresho byubaka nkumunyamazi, amazi agumana umukozi no kumeneka kwa sima na Gypsum. Irashobora kunoza imikorere yubwubatsi nuburyo bwo hejuru bwibikoresho. CMC ikunze gukoreshwa mu kuvura icyondo mumabuye y'agaciro ya peteroli, humura imyenda yimyenda no gusiga irangi, hejuru yimpapuro, nibindi
4. Umutekano no kurengera ibidukikije
Byombi bifatwa nkumutekano kugirango ukoreshe ibiryo nibisabwa bya farumasi, ariko amasoko hamwe nibikorwa byabo bishobora kugira ingaruka zitandukanye kubidukikije. Ibikoresho fatizo bya MC na CMC bivanwa na selile karemano kandi bizima, nuko bakora neza mubucuti bwibidukikije. Ariko, inzira yabo yo kubyara irashobora kubamo imiti yimiti no gusubiramo, bishobora kugira ingaruka kubidukikije.
5. Igiciro nisoko
Kubera umusaruro utandukanye, igiciro cyumusaruro wa methylcellse mubisanzwe ni hejuru, bityo igiciro cyisoko cyacyo nacyo kiri hejuru ya CarboxymethylcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcelllcellAlCelose. CMC muri rusange ifite ibyifuzo byinshi byisoko kubera porogaramu yacyo yagutse no kugura umusaruro.
Nubwo methycellsellse na Carboxymethylcellsellsellse ni ibikomoka kuri selile, bafite itandukaniro ryingenzi mumiterere, imitungo, porogaramu no gusaba isoko. Methycellse ikoreshwa cyane mu murima w'ibiribwa, imiti n'ibikoresho byo kubaka kubera ubudahebuje budasanzwe bwo kugandukira no kugenzura neza. Carboxymethyl yakoreshejwe cyane mu biryo, ubuvuzi, perrochemical, inkingi n'izindi nganda kubera ko byatunguye cyane, guhinduka kwa vicosi ndetse n'imiterere ya PH. Guhitamo ukomoka kuri selile biterwa nibisobanuro byihariye byabisabwa nibikenewe.
Igihe cya nyuma: Aug-20-2024