Methylcellulose

Methyl cellulose, e khutsufalitsoeng e le MC, e tsejoang hape e le cellulose methyl ether, ke nonionic cellulose ether. E na le ponahalo ea phofo e tšoeu, e mosehla o mosehla kapa e bobebe e bohlooho, e nang le granular kapa fibrous, e sa nkheng, e sa latsoeheng, e se nang chefo le e sa thabiseng, e nang le hygroscopic.

Methylcellulose e qhibiliha ka glacial acetic acid, empa ha e qhibilihe ka har'a metsoako ea tlhaho e kang ethanol, ether, acetone le chloroform. Methylcellulose e na le thepa e ikhethang ea li-gel tsa mocheso. Ha e qhibiliha metsing a chesang a ka holimo ho 50 ° C, e ka hasana ka potlako le ho ruruha ho etsa gel. Ha mocheso oa metsi o theoha ka tlase ho 50 ° C, o tla qhibiliha ka metsing ho etsa tharollo e nang le metsi. Litharollo tsa metsi le mefuta ea li-gel li ka sebelisana.

Tokisetso ea methyl cellulose e sebelisa selulose ea tlhaho e kang makhasi a k'hothone le makhasi a lehong e le lisebelisoa tse tala, 'me e tšoaroa ka alkali (e kang sodium hydroxide, joalo-joalo) ho fumana selulose ea alkali, ebe e etherified ka ho eketsa methyl chloride. Karabelo ka mocheso o itseng, ka mor'a ho hlatsoa, ​​​​ho se nke lehlakore, ho felloa ke metsi, ho omisa le mekhoa e meng, ho latela bohloeki ba sehlahisoa le litaba tsa theknoloji, methyl cellulose e ka aroloa ka pharmaceutical grade methyl cellulose, food grade methyl cellulose, general-purpose methyl cellulose le lihlahisoa tse ling. .

Methylcellulose e hanyetsana le li-acids le alkalis, oli, mocheso, likokoana-hloko le leseli. E na le botenya bo botle, ho etsa filimi, ho boloka metsi, ho etsa emulsifying, ho kolobisa, ho qhalakanya le ho khomarela.

Methylcellulose e na le mefuta e mengata e fapaneng ea lits'ebetso tse tlase, ho tloha ho li-coatings, li-inks, li-adhesives ho ea masela, khatiso le ho daea ho ea ho meriana le ho lokisa lijo. Liindasteri tse ngata li na le litlhoko tsa kopo bakeng sa lihlahisoa 'me li na le sebaka se batlang se batsi sa nts'etsopele. Ka mor'a tsoelo-pele e tsoelang pele ea nako e telele, indasteri ea naha ea heso ea methyl cellulose e thehile tekanyo e itseng, 'me mefuta ea lihlahisoa e ntse e tsoela pele ho phethahala, empa e hloka ho phethahala haholoanyane mabapi le tekanyo le tsoelo-pele e feletseng!