Methylcellulose

Methyl cellulose, abbreviated bi MC, tun mo bi cellulose methyl ether, jẹ a nonionic cellulose ether. O ni irisi ti funfun, ina ofeefee tabi ina grẹy lulú, granular tabi fibrous, odorless, tasteless, ti kii-majele ti ati ti kii-irritating, hygroscopic.

Methylcellulose jẹ tiotuka ni glacial acetic acid, ṣugbọn aifọkanbalẹ ninu awọn nkanmimu Organic gẹgẹbi ethanol, ether, acetone, ati chloroform. Methylcellulose ni awọn ohun-ini jeli gbona alailẹgbẹ. Nigbati o ba tuka ninu omi gbigbona ju 50°C, o le ya ni kiakia ati wú lati ṣe gel kan. Nigbati iwọn otutu omi ba lọ silẹ ni isalẹ 50°C, yoo tu sinu omi lati ṣe ojutu olomi kan. Awọn ojutu olomi ati awọn fọọmu gel le ṣe ajọṣepọ pẹlu ara wọn.

Awọn igbaradi ti methyl cellulose nlo adayeba cellulose bi owu pulp ati igi pulp bi aise ohun elo, ati ki o ti wa ni mu pẹlu alkali (gẹgẹ bi awọn soda hydroxide, ati be be lo) lati gba alkali cellulose, ati ki o si etherified nipa fifi methyl kiloraidi. Idahun ni iwọn otutu kan, lẹhin fifọ, didoju, gbigbẹ, gbigbẹ ati awọn ilana miiran, ni ibamu si mimọ ọja ati akoonu imọ-ẹrọ, methyl cellulose le pin si iwọn elegbogi methyl cellulose, ipele ounjẹ methyl cellulose, idi gbogbogbo methyl cellulose ati awọn ọja miiran .

Methylcellulose jẹ sooro si acids ati alkalis, epo, ooru, microorganisms ati ina. O ni sisanra ti o dara, ṣiṣe fiimu, idaduro omi, emulsifying, wetting, dispersing, and adhesive properties.

Methylcellulose ni ọpọlọpọ awọn ohun elo ti o wa ni isalẹ, lati awọn aṣọ, awọn inki, awọn adhesives si awọn aṣọ, titẹ sita ati kikun si oogun ati ṣiṣe ounjẹ. Ọpọlọpọ awọn ile-iṣẹ ni awọn ibeere ohun elo fun awọn ọja ati ni aaye idagbasoke ti o gbooro. Lẹhin idagbasoke ilọsiwaju igba pipẹ, ile-iṣẹ methyl cellulose ti orilẹ-ede mi ti ṣe agbekalẹ iwọn kan, ati pe ibiti ọja naa ti di pipe ati siwaju sii, ṣugbọn o nilo lati jẹ pipe diẹ sii ni awọn ofin ti iwọn ati idagbasoke okeerẹ!