I-Methyl cellulose (MC) eyenziwe ngemveliso yendalo

I-Methyl cellulose (MC) iphuma kwi-cellulose, eyipolymer yendalo efumaneka kwiindonga zeeseli zezityalo. I-Cellulose yenye yezona zinto zininzi ze-organic compounds eMhlabeni, ngokukodwa zithathwe kwi-pulp yomthi kunye ne-cotton fibers. I-MC idityaniswe kwi-cellulose ngoluhlu lwee-chemical reactions ezibandakanya ukutshintshwa kwamaqela e-hydroxyl (-OH) kwi-molecule ye-cellulose kunye namaqela e-methyl (-CH3).

Ngelixa i-MC ngokwayo iyikhompawundi eguqulwe ngamachiza, izinto zayo eziluhlaza, i-cellulose, ziphuma kwimithombo yendalo. I-cellulose inokukhutshwa kwizinto ezahlukeneyo zezityalo, kuquka umthi, umqhaphu, i-hemp, kunye nezinye izityalo ezine-fibrous. I-cellulose iqhuba inkqubo yokususa ukungcola kwaye iguqule ibe yifom esebenzisekayo yokuvelisa i-MC.

Nje ukuba i-cellulose ifunyenwe, ingena kwi-etherification ukwazisa amaqela e-methyl kwi-cellulose backbone, ekhokelela ekwenziweni kwe-methyl cellulose. Le nkqubo ibandakanya ukuphatha i-cellulose ngomxube we-sodium hydroxide kunye ne-methyl chloride phantsi kweemeko ezilawulwayo.

Isiphumo se-methyl cellulose ngumgubo omhlophe ukuya kumhlophe, ongenavumba, nongenancasa onyibilikayo kumanzi abandayo kwaye wenze isisombululo se-viscous. Isetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanya ukutya, amayeza, ukhathalelo lomntu, kunye nolwakhiwo, ngenxa yokuqina kwayo, ukuzinzisa, kunye neempawu zokwenza ifilimu.

Ngelixa i-MC iyikhompawundi eguqulwe ngokwekhemikhali, iphuma kwiselulosi yendalo, iyenza ibe yinto enokubola kunye nokusingqongileyo kwizicelo ezininzi.