Sesebelisoa le ho hlophisoa ha hydroxethyl methyl methyl cellulolose hemc

Hydroxethyl Methyl Methyl Hemc e ka sebelisoa e le moemeli oa Suflid, Emulifier le ho akheloa ka lebaka la ts'ebetso ea eona e sebetsang. Mohlala oa kopo ea ona o tjena: phello ea hydroxethyl methyl cellulose mabapi le thepa ea samente. Hydroxethyl Methylcelulolose ke phofo e tšoeu e se nang meno e senyehileng e qhibilihang metsing a batang a ho theha tharollo e hlakileng, e che. E na le thepa ea ho holisa, ho tlama, ho theha mongobo, ho emisoa, ho boloka mongobo le ho sireletsa li-colloids. Ka lebaka la ts'ebetso e sebetsang ea tharollo, e ka sebelisoa e le moemeli ea sireletsang ea kokoana-hloko, e tsubang le e nyarosang. Hydroxethyl Methyl Methyl Methyl Mothyl Mothyl Mothyl Mothyl Mothyl

Itokisetse
A method for preparing hydroxyethyl methyl cellulose, the method comprises using refined cotton as a raw material and ethylene oxide as an etherifying agent to prepare hydroxyethyl methyl cellulose. Lisebelisoa tse tala tsa ho lokisa hydroxethyl methyl methyl e lokiselitsoe likarolo, likarolo tsa 700-80 tsa k'hothone, le 16-19 likarolo tsa asiti ea acetic acetic; Mehato e Ikhethileng ke:

Mohato oa pele, molemong oa Tolue le Isipropanol motsoako, metsi, le sodium hydroxide, futhumatsa ho fihlela 60 ~ 80;

Mohato oa bobeli, Alkalization: Phola lisebelisoa tse kaholimo ho la 30 ~ 50 ℃, tlatsa motsoako oa Toluvention 50 ° C;

Mohato oa boraro, setheo sa ma-alkaliation se phetheloa, 'muelli o tlositsoe ho 0.05 ~ 0.07Ma, changne ​​oxide le metsotso e 50 Mokhahlelo oa pele oa phatla: 40 ~ 60 ℃, hora ea 1.0 ~, khatello e laoloa pakeng tsa 0 0,150.3Le; Mokhahlelo oa bobeli oa phallo: 60 ~ 90 ℃, lihora tse 2,0, khatello e laoloa lipakeng tsa 0,40.8mpa;

Mohato oa 4, ho se nke lehlakore: Ho eketsa asiti ea acic e kholo esale pele, ho fumana boleng ba 2 9 ~ 80

Mohato oa bohlano, ho hlatsoa li-centrifigal: Lintho tse hlahang bothateng ba bone li fetisetsoa ke metsi a chesang pele, 'me litaba tsa ho hlatsoa;

Mohato oa botšelela, lisebelisoa tsa Centrifigigal: Lingoliloeng tse sirelelitsoeng li tsamaisoa ka sekhukhu ka har'a setlolo se omisitsoeng ka 150-170 ° C, 'me ho beiloe thepa e omisitsoeng.

Ha ho bapisoa le theknoloji e teng oa cellulose e nang le matla a ethylene oxide methyl methyl methyl methyl methyl E ka sebelisoa ho fapana le e-nte e 'ngoe ea cellulose ethe.