I-methylcellulose

I-Methyl cellulose, efinyeziweyo njenge-MC, ekwabizwa ngokuba yi-cellulose methyl ether, yi-nonionic cellulose ether. Inembonakalo yomgubo omhlophe, otyheli okhanyayo okanye ongwevu okhanyayo, i-granular okanye i-fibrous, ayinavumba, ayinancasa, ayinayo ityhefu kwaye ayicaphukisi, i-hygroscopic.

I-Methylcellulose iyanyibilika kwi-acetic acid yeglacial, kodwa ayinyibiliki kwizinyibilikisi eziphilayo ezifana ne-ethanol, i-ether, i-acetone, kunye ne-chloroform. I-Methylcellulose ineempawu ezizodwa ze-thermal gel. Xa inyibilika kumanzi ashushu angaphezu kwama-50 ° C, inokusasazeka ngokukhawuleza kwaye idumbe ukwenza ijeli. Xa ubushushu bamanzi buhla ngaphantsi kwe-50 ° C, luya kunyibilika emanzini ukwenza isisombululo esinamanzi. Izisombululo ezinamanzi kunye neefom zejel zinokusebenzisana.

Ukulungiswa kwe-methyl cellulose isebenzisa i-cellulose yendalo efana ne-cotton pulp kunye ne-pulp yokhuni njengezinto eziluhlaza, kwaye iphathwa nge-alkali (efana ne-sodium hydroxide, njl.) Ukufumana i-alkali cellulose, kwaye emva koko i-etherified ngokudibanisa i-methyl chloride. Ukusabela kwiqondo lokushisa elithile, emva kokuhlamba, ukungathathi hlangothi, ukuphelelwa ngamanzi emzimbeni, ukomiswa kunye nezinye iinkqubo, ngokuhambelana nokucoceka kwemveliso kunye nomxholo wobugcisa, i-methyl cellulose inokwahlulwa ibe yi-methyl cellulose ye-pharmaceutical grade, ibakala lokutya i-methyl cellulose, i-methyl cellulose yenjongo jikelele kunye nezinye iimveliso. .

I-Methylcellulose iyamelana ne-acids kunye ne-alkali, ioli, ukushisa, i-microorganisms kunye nokukhanya. Inokuqina kakuhle, ukwenza ifilimu, ukugcina amanzi, ukuthambisa, ukumanzisa, ukusabalalisa, kunye neempawu zokuncamathelisa.

I-Methylcellulose inoluhlu olubanzi lwezicelo ezisezantsi, ukusuka kwiingubo, ii-inki, i-adhesives ukuya kwi-textile, ukuprinta kunye nokudaya ukuya kumayeza kunye nokulungiswa kokutya. Amashishini amaninzi aneemfuno zezicelo zeemveliso kwaye anendawo yophuhliso ebanzi. Emva kophuhliso oluqhubekayo lwexesha elide, ishishini lelizwe lam le-methyl cellulose lenze isikali esithile, kwaye uluhlu lwemveliso luba lugqibelele ngakumbi, kodwa lufuna ukugqibelela ngakumbi ngokubhekiselele kwisikali kunye nophuhliso olubanzi!