Methylcellulose (MC), CAS No . 9004-67-5, yog nonionic cellulose ether. Nws feem ntau yog dawb los yog tawm -dawb fibrous los yog granular hmoov, tsw thiab tsis qab. Nws swells nyob rau hauv dej txias los tsim ib tug pob tshab, viscous tov thiab exhibits tshwj xeeb thermogel zog (gelling raws li cua sov thiab daws thaum txias). Cov tshuaj ruaj khov no muaj ntau yam haujlwm, suav nrog kev ua kom tuab, emulsifying, zaj duab xis- tsim, tawg, thiab dej- khaws cov khoom. Nws yog dav siv los ua cov thickener hauv kev lag luam khoom noj khoom haus, kev sib khi thiab ruaj khov- tso tawm cov ntaub ntawv hauv chaw tshuaj, dej- tuav tus neeg sawv cev hauv kev tsim kho, thiab tus neeg sawv cev pabcuam hauv txheej txheej, textiles, thiab ntau lwm yam.
Methylcellulose yog methyl cellulose ether. Nws yog dawb, lub teeb daj, los yog lub teeb grey granule, filament, los yog hmoov. Nws tsis muaj ntxhiab thiab tsis qab, nrog kwv yees li 27% -32% ntawm nws pawg hydroxyl uas muaj nyob rau hauv daim ntawv ntawm methoxy pawg. Cov qib sib txawv ntawm methylcellulose muaj ntau qib ntawm polymerization, xws li 50 txog 1000; lawv qhov hnyav molecular (nruab nrab) yog li ntawm 10,000 txog 220,000 Da. Qhov kev hloov pauv tau txhais tau tias yog qhov nruab nrab ntawm cov methoxy pawg, uas txuas nrog rau txhua chav glucosyl ntawm cov saw hlau.
