Dab tsi yog kev tsim khoom ntawm methylcellulose?

Methylcellulose yog ib hom cellulose-based polymer uas yog siv rau ntau yam kev siv, suav nrog zaub mov, tshuaj, thiab tshuaj pleev ib ce. Nws yog cov hmoov dawb, tsis muaj ntxhiab, tsis qab ntsev uas yog soluble hauv dej txias thiab tsim cov gel thaum rhuab. Nws yog tsim los ntawm kev kho cellulose nrog methyl chloride thiab sodium hydroxide.

Kev tsim cov txheej txheem ntawm methylcellulose muaj ob peb kauj ruam. Thawj kauj ruam yog kom tau txais cov khoom siv raw, uas feem ntau yog cellulose. Cellulose tuaj yeem tau los ntawm ntau qhov chaw, xws li ntoo pulp, paj rwb, thiab lwm yam nroj tsuag fibers. Cov cellulose yog tom qab ntawd kho nrog methyl chloride thiab sodium hydroxide los tsim cov methylcellulose polymer.

Cov kauj ruam tom ntej yog los ntxuav cov methylcellulose. Qhov no yog ua los ntawm kev tshem tawm cov impurities xws li lignin, hemicellulose, thiab lwm yam ntaub ntawv uas yuav cuam tshuam rau cov khoom xav tau ntawm methylcellulose. Qhov no feem ntau yog ua los ntawm kev kho cov methylcellulose nrog cov kua qaub los yog alkali, los yog siv cov txheej txheem hu ua fractionation.

Thaum cov methylcellulose tau purified, nws yog ces qhuav thiab hauv av rau hauv hmoov. Cov hmoov no ces npaj siv rau ntau yam kev siv.

Methylcellulose tuaj yeem siv los ua tus neeg sawv cev thickening, emulsifier, stabilizer, lossis gelling agent. Nws kuj yog siv rau hauv cov khoom noj xws li ice cream, zaub xam lav hnav khaub ncaws, thiab kua ntses. Hauv kev lag luam tshuaj, nws yog siv los ua ib qho kev sib khi, tshem tawm tus neeg sawv cev, thiab ntsiav tshuaj txheej. Hauv cov tshuaj pleev ib ce, nws yog siv los ua cov thickener, emulsifier, thiab stabilizer.

Kev tsim cov txheej txheem ntawm methylcellulose yog qhov yooj yim thiab siv tau zoo. Nws yog ib qho txiaj ntsig zoo los tsim ntau yam khoom siv nrog ntau yam kev siv. Nws kuj yog ib qho khoom siv nyab xeeb thiab tsis muaj tshuaj lom uas tuaj yeem siv rau ntau yam kev siv.