I-methylcellulose

I-Methyl cellulose, efushanisiwe njenge-MC, eyaziwa nangokuthi i-cellulose methyl ether, i-nonionic cellulose ether. Inokubonakala kwempushana emhlophe, ephuzi ngokukhanyayo noma empunga ekhanyayo, i-granular noma i-fibrous, ayinaphunga, ayinambitheki, ayinabuthi futhi ayicasuli, i-hygroscopic.

I-Methylcellulose iyancibilika ku-glacial acetic acid, kodwa ayincibiliki kuzincibilikisi zemvelo ezifana ne-ethanol, i-ether, i-acetone, ne-chloroform. I-Methylcellulose inezakhiwo zejeli ezishisayo ezihlukile. Uma incibilika emanzini ashisayo angaphezu kuka-50°C, ingahlakazeka Ngokushesha futhi ikhukhumale yenze ijeli. Lapho izinga lokushisa lamanzi lehla ngaphansi kuka-50°C, lizoncibilika emanzini ukuze libe isixazululo esinamanzi. Izixazululo ezinamanzi namafomu ejeli angasebenzisana.

Ukulungiswa kwe-methyl cellulose kusebenzisa i-cellulose yemvelo efana ne-pulp kakotini kanye ne-pulp yezinkuni njengezinto zokusetshenziswa, futhi iphathwa nge-alkali (njenge-sodium hydroxide, njll.) ukuze kutholwe i-alkali cellulose, bese i-etherified ngokungeza i-methyl chloride. Ukusabela ekushiseni okuthile, ngemva kokugeza, ukungathathi hlangothi, ukuphelelwa amanzi emzimbeni, ukomiswa nezinye izinqubo, ngokusho kokuhlanzeka komkhiqizo kanye nokuqukethwe kobuchwepheshe, i-methyl cellulose ingahlukaniswa ngokwezigaba zemithi ye-methyl cellulose, i-methyl cellulose yebanga lokudla, i-methyl cellulose evamile kanye neminye imikhiqizo. .

I-Methylcellulose imelana nama-acids nama-alkali, amafutha, ukushisa, ama-microorganisms nokukhanya. Inokuqina okuhle, ukwenza ifilimu, ukugcina amanzi, i-emulsifying, ukumanzisa, ukuhlakazeka, kanye nezakhiwo zokunamathela.

I-Methylcellulose inohlu olubanzi lwezinhlelo zokusebenza ezansi nomfula, kusukela ezimbotsheni, iziyinki, izinamathiselo kuya kwezindwangu, ukuphrinta nokudaya kuya emithini nasekusetshenzisweni kokudla. Izimboni eziningi zinezidingo zokufaka izicelo zemikhiqizo futhi zinendawo ebanzi yokuthuthuka. Ngemva kokuthuthukiswa okuqhubekayo kwesikhathi eside, imboni yezwe lami i-methyl cellulose iye yakha isikali esithile, futhi uhla lomkhiqizo luya ngokuya luphelele, kodwa ludinga ukuphelela kakhulu ngokwezinga kanye nentuthuko ebanzi!