Cellulose yog dab tsi?

Cellulose yog dab tsi?

Cellulose yog polysaccharide, txhais tau tias nws yog ib qho nyuaj carbohydrate ua los ntawm ntev chains ntawm qab zib molecules. Tshwj xeeb, cellulose yog tsim los ntawm kev rov ua dua ntawm cov piam thaj molecules txuas ua ke los ntawm β (1 → 4) glycosidic bonds. Qhov kev npaj no muab cellulose nws tus yam ntxwv fibrous qauv.

Cellulose yog lub hauv paus tseem ceeb ntawm cov phab ntsa ntawm tes hauv cov nroj tsuag, muab rigidity, lub zog, thiab kev txhawb nqa rau cov nroj tsuag thiab cov ntaub so ntswg. Nws muaj ntau nyob rau hauv cov khoom siv cog xws li ntoo, paj rwb, hemp, flax, thiab nyom.

Cov tshuaj formula ntawm cellulose yog (C6H10O5)n, qhov twg n sawv cev rau tus naj npawb ntawm cov piam thaj hauv cov saw hlau. Cov qauv tseeb thiab cov khoom ntawm cellulose tuaj yeem sib txawv nyob ntawm seb qhov chaw ntawm cellulose thiab degree ntawm polymerization (piv txwv li, tus naj npawb ntawm cov piam thaj hauv cov saw hlau).

Cellulose yog insoluble nyob rau hauv dej thiab feem ntau cov organic solvents, uas pab rau nws stability thiab durability. Txawm li cas los xij, nws tuaj yeem tawg mus rau hauv nws cov piam thaj molecules los ntawm cov txheej txheem enzymatic lossis tshuaj hydrolysis, uas yog siv rau ntau yam kev lag luam, xws li papermaking, textile manufacturing, biofuel ntau lawm, thiab ua zaub mov.