Hydroxypropyl methyl cellulose (HPMC) ke mofuta oa cellulose o tsoakiloeng oa ether oo tlhahiso, litekanyetso le boleng li ntseng li eketseha ka potlako lilemong tsa morao tjena.Non-ionic cellulose e tsoakiloeng ether e entsoeng ke mekhoa e meng.
HPMC e na le thepa e ntle ea ho qhalakanya, e emulsifying, e teteaneng, e momahaneng, e bolokang metsi le ea ho boloka marenene.E qhibiliha ka metsing, hape e ka qhibiliha ka ethanol le acetone ka tlase ho 70%.HPMC e nang le sebopeho se khethehileng e ka boela ea qhibiliha ka ho toba ka ethanol.HPMC e ka sebelisoa haholo joalo ka ho roala filimi, moemeli oa tokollo e tsitsitseng le setlamo bakeng sa litokisetso tsa meriana, hape e ka sebelisoa haholo ho lik'hemik'hale tsa petrochemical, thepa ea moaho, lirafshoa, masela, lijo, lik'hemik'hale tsa letsatsi le letsatsi ka ho sebelisa matla a eona, ho qhalakanya, emulsifying le ho etsa lifilimi. thepa., resin ea maiketsetso, meriana, pente le lisebelisoa tsa elektronike le likarolo tse ling.
Ts'ebetso ea tlhahiso ea HPMC e ka aroloa ka mekhahlelo e 'meli: mokhoa oa mohato oa khase le mokhoa oa mokelikeli.Hona joale, linaha tse tsoetseng pele tse kang Europe, United States le Japane li sebelisa ts'ebetso e eketsehileng ea khase, li sebelisa makhasi a lehong e le lisebelisoa tse tala (matlapa a k'hothone a sebelisetsoa ho hlahisa lihlahisoa tse phahameng tsa viscosity), alkalization le etherification li etsoa ka tsela e tšoanang. thepa, 'me karabelo e kholo ke karabelo e rapameng.Ketlele e na le moqomo o bohareng o tšekaletseng o tsubellang le thipa e fofang e ka lehlakoreng e etselitsoeng ka ho khetheha tlhahiso ea cellulose ether, e ka fumanang phello e ntle ea ho kopanya.
Bahlahlobisisi ba indasteri ba Xinsijie ba boletse hore ka kholo e tsoelang pele ea moruo le ntlafatso e tsoelang pele ea bophelo ba batho, tlhoko ea hydroxypropyl methylcellulose 'marakeng oa China e ntse e eketseha.Ka nako e telele, tlhoko ea 'maraka oa naha ea heso ea hydroxypropyl methylcellulose e tsepame haholo-holo litabeng tsa kaho le liphahlo.Ka nts'etsopele e tsoelang pele ea liindasteri tse tlase, tlhoko ea hydroxypropyl methylcellulose masimong a lijo le meriana e se e qalile ho hola ka potlako.Nakong e tlang, indasteri ya kaho, ya dijo le ya meriana e tla ba matla a bohlokwa bakeng sa kgolo ya mmaraka wa naha ya heso wa hydroxypropyl methylcellulose.
Nako ea poso: Nov-03-2022