Hydroxyethyl cellulose (HEC) ke polima e se nang ionic, e qhibilihang ka metsing e tsoang selulose ka letoto la liphetoho tsa lik'hemik'hale. E sebelisoa haholo liindastering tse fapaneng tse kang litlolo, meriana, le kaho ka lebaka la ho teteana ha eona, ho tsitsisa le ho tlama thepa. Sebaka se qhibilihang sa hydroxyethyl cellulose ha se mohopolo o hlakileng, kaha ha o qhibilihe ka mokhoa o tloaelehileng joalo ka tšepe kapa metsoako e itseng ea tlhaho. Ho e-na le hoo, e senyeha ka mocheso pele e fihla sebakeng sa 'nete sa ho qhibiliha.
1.Selelekela ho Hydroxyethyl Cellulose (HEC)
Hydroxyethyl cellulose e tsoa ho selulose, e leng polymer ea tlhaho e fumanehang ka bongata maboteng a lisele tsa limela. Cellulose e entsoe ka li-unit tse pheta-phetoang tsa tsoekere tse hokahantsoeng ka libond tsa β-1,4 tsa glycosidic. Hydroxyethyl cellulose e hlahisoa ke phetoho ea lik'hemik'hale ea selulose ka etherification e nang le ethylene oxide, e leng se hlahisang ho kenngoa ha lihlopha tsa hydroxyethyl (-CH2CH2OH) mokokotlong oa cellulose. Phetoho ena e fana ka ho qhibiliha ha metsi le lisebelisoa tse fapaneng tse sebetsang ho HEC.
2.Properties ea Hydroxyethyl Cellulose
Ho qhibiliha ha Metsi: E 'ngoe ea litšobotsi tse ka sehloohong tsa HEC ke ho qhibiliha ha metsi ho phahameng. Ha e qhalakantsoeng ka metsing, HEC e etsa tharollo e hlakileng kapa e nyenyane ea opalescent ho itšetlehile ka mahloriso a polymer le lintlha tse ling tsa tlhahiso.
Thickening Agent: HEC e sebelisoa haholo e le ntho e matlafatsang lits'ebetsong tse fapaneng tse kang lipente, li-adhesives, cosmetics le lihlahisoa tsa tlhokomelo ea botho. E fana ka viscosity ho mekhoa ena, ho ntlafatsa botsitso le ts'ebetso ea bona.
Thepa ea ho Etsa Lifilimi: HEC e ka etsa lifilimi tse tšesaane, tse tenyetsehang ha li lahleloa ka tharollo ea metsi a eona. Lifilimi tsena li na le matla a matle a mochine le thepa ea thibelo, e etsang hore e be molemo ka ho roala le lits'ebetsong tse ling.
Non-ionic Nature: HEC ke polymer e seng ea ionic, e bolelang hore ha e jare tefo leha e le efe ea letlooa mohahong oa eona. Thepa ena e etsa hore e lumellane le mefuta e mengata ea lik'hemik'hale tse ling le metsoako ea ho etsoa.
pH botsitso: HEC e bonts'a botsitso bo botle holim'a mefuta e mengata ea pH, hangata ho tloha ho acidic ho ea ho alkaline. Thepa ena e kenya letsoho ho feto-fetoha ha eona mekhoeng e fapaneng.
Botsitso ba Mocheso: Le hoja HEC e se na sebaka se ikhethang sa ho qhibiliha, e na le ho senyeha ha mocheso ka mocheso o phahameng. Thempereichara e nepahetseng eo ho bola ho etsahalang ho eona e ka fapana ho latela lintlha tse kang boima ba limolek'hule, tekanyo ea ho fetola, le boteng ba litšila.
3.Likopo tsa Hydroxyethyl Cellulose
Lipente le Liaparo: HEC e atisa ho sebelisoa e le ntho e teteaneng ka lipente le liphahlo tse thehiloeng metsing ho laola thepa ea bona ea rheological le ho thibela ho theoha kapa ho rotha.
Lihlahisoa tsa Tlhokomelo ea Botho: HEC e fumanoa lihlahisoa tse ngata tsa tlhokomelo ea motho tse kang li-shampoo, lotion, litlolo le li-gel, moo e sebetsang e le setei, se tsitsitseng, le moemeli oa ho emisa.
Meriana ea Meriana: Litlhakung tsa meriana, HEC e sebelisoa ka ho emisoa ka molomo, tharollo ea ophthalmic, le litlolo tsa topical ho ntlafatsa viscosity, ho matlafatsa botsitso, le ho laola ho lokolloa ha lithethefatsi.
Lisebelisoa tsa Kaho: HEC e kenyelletsoa lihlahisoa tsa samente tse kang li-adhesive tsa lithaele, li-grouts le seretse ho ntlafatsa ts'ebetso, ho boloka metsi le ho khomarela.
Indasteri ea Lijo: HEC e sebelisoa ka linako tse ling lits'ebetsong tsa lijo joalo ka setepi le se tsitsitseng, leha ts'ebeliso ea eona e sa tloaeleha ha e bapisoa le li-hydrocolloids tse ling joalo ka xanthan gum kapa guar gum.
4.Boitšoaro ba HEC tlas'a Maemo a Fapaneng
Boitšoaro ba Tharollo: The viscosity ea tharollo ea HEC e itšetlehile ka lintlha tse kang polymer concentration, boima ba molek'hule, tekanyo ea ho fetola, le mocheso. Maemo a phahameng a polymer le boima ba limolek'hule hangata li baka li-viscosity tse phahameng.
Temperature Sensitivity: Le hoja HEC e tsitsitse holim'a mefuta e mengata ea mocheso, viscosity ea eona e ka 'na ea fokotseha ka mocheso o phahameng ka lebaka la ho fokotsa ho sebelisana ha polymer-solvent. Leha ho le joalo, phello ena e ka khutlisetsoa morao ha ho pholile.
Ho lumellana: HEC e lumellana le metsoako e atisang ho sebelisoa ha ho etsoa lihlahisoa, empa ts'ebetso ea eona e ka susumetsoa ke lintlha tse kang pH, electrolyte concentration, le boteng ba li-additives tse itseng.
Botsitso ba ho Boloka: Ka kakaretso litharollo tsa HEC li tsitsitse tlas'a maemo a nepahetseng a polokelo, empa li ka 'na tsa senyeha ha nako e telele haeba li sa bolokoe ka mokhoa o lekaneng le li-antimicrobial agents.
Hydroxyethyl cellulose (HEC) ke polima e feto-fetohang e nang le mefuta e mengata ea ts'ebeliso ho liindasteri tse fapaneng. Motsoako oa eona o ikhethang oa thepa, ho kenyeletsoa ho qhibiliha ha metsi, matla a botenya, bokhoni ba ho etsa lifilimi, le botsitso ba pH, e etsa hore e be ea bohlokoa haholo mekhoeng ho tloha ho lipente le liphahlo ho isa lihlahisoa tsa tlhokomelo ea motho le meriana. Le hoja HEC e se na sebaka se ikhethileng sa ho qhibiliha, boitšoaro ba eona tlas'a maemo a fapaneng, joalo ka mocheso le pH, e susumetsa ts'ebetso ea eona lits'ebetsong tse khethehileng. Ho utloisisa matlotlo ana le mekhoa ea boitšoaro ke ea bohlokoa bakeng sa ho ntlafatsa katleho ea HEC mefuteng e sa tšoaneng le ho netefatsa boleng le botsitso ba lihlahisoa tsa ho qetela.
Nako ea poso: Apr-10-2024