hydroxyethyl cellulose ke eng?

Hydroxyethyl cellulose (HEC) ke polima e qhibilihang ka metsing e tsoang ho selulose, polysaccharide ea tlhaho e fumanehang limela. HEC e thehiloe ka ho fetoloa ha selulose ka ho eketsoa ha lihlopha tsa hydroxyethyl, tse khomaretsoeng ho likarolo tsa tsoekere ea molek'hule ea cellulose. Phetoho ena e fetola thepa ea selulose 'me e etsa hore e sebelisoe mefuteng e fapaneng ea ts'ebeliso, joalo ka indastering ea lijo, ea litlolo le ea meriana.

HEC ke polymer e ngata haholo, e nang le mefuta e mengata ea boima ba limolek'hule le likhato tsa ho fetola, tse khethollang thepa ea eona, e kang ho qhibiliha ha eona, viscosity le gelation. Tekanyo ea ho nka sebaka ke tekanyo ea palo ea lihlopha tsa hydroxyethyl tse khomaretsoeng yuniti e 'ngoe le e' ngoe ea tsoekere ea molek'hule ea cellulose, 'me e ka tloha ho 1 ho isa ho 3, ka likhato tse phahameng tse bontšang palo e kholo ea lihlopha tsa hydroxyethyl.

HEC e sebelisoa lihlahisoa tse fapa-fapaneng e le ntho e teteaneng, e tsitsitseng le e kopanyang. E ka sebelisoa ho eketsa viscosity ea metsoako ea metsi, ho ntlafatsa sebopeho le molomo oa lihlahisoa tsa lijo, le ho matlafatsa botsitso ba li-emulsion. Lefapheng la meriana, HEC e sebelisoa e le setlamo sa matlapa, e le motenya bakeng sa metsoako ea lihlooho, hape e le moemeli oa nako e telele oa tokollo bakeng sa mekhoa ea ho fana ka lithethefatsi.

E 'ngoe ea litšobotsi tsa bohlokoa ka ho fetisisa tsa HEC ke bokhoni ba eona ba ho etsa li-gel ka metsing. Ha HEC e qhibiliha ka metsing, e ka etsa gel ka mokhoa o tsejoang e le hydration. Ts'ebetso ea gelation e itšetlehile ka tekanyo ea ho fetola, boima ba limolek'hule, le mahloriso a HEC ka tharollo. Ts'ebetso ea gelation ea HEC e ka laoloa ka ho lokisoa ha mekhahlelo ena, e etsang hore e be molemo mefuteng e fapaneng ea likopo.

HEC e atisa ho sebelisoa indastering ea lijo e le setenya le se tsitsitseng lihlahisoa tse kang li-sauces, li-dressings le sopho. E ka ntlafatsa sebopeho le molomo oa lihlahisoa tsena, 'me ea ntlafatsa botsitso ba tsona ha nako e ntse e ea. HEC e ka boela ea sebelisoa ho tsitsisa li-emulsions, tse kang mayonnaise, ka ho thibela ho arohana ha likarolo tsa oli le metsi.

Lefapheng la litlolo, HEC e sebelisoa mefuteng e mengata ea tlhokomelo ea botho, ho akarelletsa le li-shampoo, li-conditioner, lotions, le litlolo. HEC e ka ntlafatsa sebopeho le ho tsitsisa ha lihlahisoa tsena, ho ntlafatsa thepa ea tsona ea mongobo, le ho fana ka maikutlo a boreleli, a velvety. E ka boela ea tsitsisa li-emulsions ho litlolo tsa litlolo le ho thusa ho thibela ho arohana ha likarolo tsa oli le metsi.

Indastering ea meriana, HEC e sebelisoa e le setlamo se entsoeng ka letlapa ho etsa bonnete ba hore lisebelisoa tsa letlapa li lula li hatelloa hammoho. E boetse e sebelisoa e le motenya bakeng sa li-topical formulations, moo e ka ntlafatsang viscosity le botsitso ba litlolo le litlolo. Ho phaella moo, HEC e sebelisoa e le moemeli oa ho lokolloa ka mokhoa o tsitsitseng tsamaisong ea ho fana ka lithethefatsi, moo e ka laolang lebelo leo lithethefatsi li lokolloang ka lona 'meleng.

HEC e na le thepa e 'maloa e ikhethang e e etsang hore e be polymer e sebetsang lits'ebetsong tse fapaneng. Tse ling tsa lintho tsena li kenyelletsa:

Ho qhibiliha ha metsi: HEC e na le metsi a mangata haholo, e leng se etsang hore ho be bonolo ho kenyelletsa metsoako ea metsi.

E senang chefo le biocompatible: HEC ka kakaretso e nkuoa e le thepa e bolokehileng le e lumellanang le bioloji, e etsang hore e be molemo lits'ebetsong tsa meriana le tsa litlolo.

E feto-fetoha: HEC ke polymer e nang le mekhoa e mengata e ka sebelisoang mefuteng e mengata ea likopo ka lebaka la bokhoni ba eona ba ho etsa li-gel le ho ikamahanya le maemo a fapaneng a ho fetola le boima ba limolek'hule.

Qetellong, hydroxyethyl cellulose ke polymer e qhibilihang ka metsi e tsoang ho selulose ka ho eketsoa ha lihlopha tsa hydroxyethyl.