Methyl Cellulose (MC) ua los ntawm cov khoom ntuj

Methyl Cellulose (MC) yog qhov ua rau ntawm cellulose, uas yog lub ntuj polymer pom nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. Cellulose yog ib qho ntawm cov organic ntau tshaj plaws hauv ntiaj teb, feem ntau yog los ntawm ntoo pulp thiab cov paj rwb fibers. MC yog synthesized los ntawm cellulose los ntawm cov tshuaj lom neeg ntawm cov pab pawg ntawm cov pab pawg hydroxule nrog methyl pawg (-ch3).

Thaum MC nws tus kheej yog kev hloov kho tshuaj sib xyaw ua ke, nws cov khoom siv raw, cellulose, yog muab tau los ntawm cov khoom ntuj. Cellulose tuaj yeem muab rho tawm los ntawm ntau cov ntoo ntoo, suav nrog cov ntoo, paj rwb, hemp, thiab lwm yam nroj tsuag. Lub cellulose undergese ua kom tshem tawm impurities thiab hloov nws mus rau hauv ib daim ntawv siv tau rau kev tsim cov MC.

Thaum tau txais lub cellulose tau txais, nws undergoes etherification los qhia methyl pawg mus rau cellulose los qhia lub cellulose los qhia lub cellulose los qhia txog methyl cellulose. Tus txheej txheem no cuam nrog kho cellulose nrog kev sib xyaw ntawm cov sodium hydroxide thiab methyl chloride nyob rau hauv cov xwm txheej tswj.

Lub resulting methyl cellulose yog ib tug dawb kom tawm-dawb, tsw zoo, thiab nqus hmoov av uas soluble hauv dej txias thiab ua cov tshuaj uas tsis muaj kuab. Nws yog dav siv nyob rau hauv ntau yam kev lag luam, suav nrog cov khoom noj, chaw muag tshuaj, kev tu tus kheej, thiab kev tsim kho, rau nws cov thickening, ruaj khov, thiab zaj duab xis-ua cov khoom.

Thaum MC yog qhov ntsuas tshuaj hloov pauv, nws yog muab tau los ntawm cov xov xwm ntuj ntuj, ua rau nws cov kev xaiv biodegradable thiab ib puag ncig kev xaiv rau ntau daim ntawv thov.