Thickener hec hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) ke nonionic cellulose derivative e sebelisoang haholo liindastering tse fapaneng ka lebaka la thepa ea eona e matla ea ho tenya, ho emisa le ho etsa emulsifying. HEC ke polymer e qhibilihang ka metsing e ka qhibilihang habonolo metsing a batang ho etsa tharollo e hlakileng le e se nang mebala. HEC e atisa ho sebelisoa e le motenya mefuteng e mengata ea likopo, ho kenyelletsa le liaparo, li-adhesives, lihlahisoa tsa tlhokomelo ea botho, le meriana.

HEC e hlahisoa ka ho fetola selulose ea tlhaho, polymer e nang le li-unit tsa glucose tse kopantsoeng hammoho ka β (1 → 4) li-bonds tsa glycosidic. Phetoho ea selulose e kenyelletsa ho hlahisa lihlopha tsa hydroxyethyl (-CH2CH2OH) ho li-unit tsa anhydroglucose tsa mokokotlo oa cellulose. Phetoho ena e etsa hore ho be le polymer e qhibilihang ka metsing e ka etsang likamano tsa hydrogen le limolek'hule tsa metsi, e leng se lebisang ho thehoeng ha tharollo ea viscous.

HEC ke motenya o atlehang ka lebaka la bokhoni ba eona ba ho etsa sebopeho se kang gel ha se kenngoa ho tharollo. Lihlopha tsa hydroxyethyl ka molek'hule ea HEC li ka sebelisana le limolek'hule tsa metsi, e leng se etsang hore ho thehoe li-bond tsa hydrogen. Litlamo tsa hydrogen pakeng tsa molek'hule ea HEC le limolek'hule tsa metsi li etsa hore molek'hule ea HEC e be hydrated le ho atolosa ka boholo. Ha molek'hule ea HEC e ntse e atoloha, e etsa sebopeho sa marang-rang se nang le mahlakore a mararo se tšoarang metsi le likarolo tse ling tse qhibilihisitsoeng, e leng se etsang hore ho be le keketseho ea viscosity ea tharollo.

Bokhoni ba botenya ba HEC bo angoa ke lintlha tse fapaneng, ho kenyelletsa le khatello ea HEC tharollong, mocheso le pH. Likhakanyo tse phahameng tsa HEC ka tharollo li lebisa keketseho e kholo ea viscosity. Leha ho le joalo, ho eketsa mahloriso a HEC ho feta ntlha e itseng ho ka lebisa ho fokotseha ha viscosity ka lebaka la ho thehoa ha lihlopha. Mocheso o boetse o ama bokhoni ba ho teteana ba HEC, ka mocheso o phahameng o lebisang ho fokotseha ha viscosity. PH ea tharollo e ka boela ea ama bokhoni bo matla ba HEC, ka litekanyetso tse phahameng tsa pH tse lebisang ho fokotseha ha viscosity.

HEC e atisa ho sebelisoa e le sekontiri lits'ebetsong tse fapaneng, ho kenyeletsoa lipente le lipente. Ka ho roala, HEC e kenyelletsoa ho etsoa ho ntlafatsa thepa ea rheological ea ho roala. Thepa ea rheological ea ho roala e bolela bokhoni ba eona ba ho phalla le boemo bo holimo. HEC e ka ntlafatsa phallo le thepa e lekantsoeng ea seaparo ka ho eketsa viscosity ea eona le ho fokotsa tšekamelo ea eona ea ho thella. HEC e ka boela ea ntlafatsa botsitso ba ho roala ka ho thibela ho lokisa li-pigments le lintho tse ling tse tiileng.

Likhomaretsing, HEC e sebelisoa e le motenya ho ntlafatsa viscosity le tackiness ea sekhomaretsi. The viscosity ea sekhomaretsi ke ea bohlokoa bakeng sa bokhoni ba eona ba ho khomarela bokaholimo le ho lula sebakeng. HEC e ka ntlafatsa viscosity ea sekhomaretsi le ho e thibela ho rotha kapa ho sebetsa. HEC e ka boela ea ntlafatsa tackiness ea sekhomaretsi, e lumella hore e khomarele hantle holim'a metsi.

Ka lihlahisoa tsa tlhokomelo ea botho, HEC e sebelisoa e le motenya le stabilizer. HEC e atisa ho sebelisoa ka li-shampoo, li-conditioner le lihlapa tsa 'mele ho ntlafatsa viscosity ea tsona le sebopeho sa tsona. HEC e ka boela ea ntlafatsa botsitso ba lihlahisoa tsena ka ho thibela ho arohana ha mekhahlelo le ho lokisa lintho tse tiileng.

Litlhare tsa meriana, HEC e sebelisoa e le ntho e teteaneng le e emisang. HEC e atisa ho sebelisoa ho emisoa ka molomo ho emisa lithethefatsi tse sa qhibiliheng ka har'a mokelikeli. HEC e ka boela ea sebelisoa e le motenya ka har'a litlolo le li-gel ho ntlafatsa viscosity le sebopeho sa tsona.

Qetellong, HEC ke polima e qhibilihang ka metsing e sebelisoang haholo e le motenya liindasteri tse fapa-fapaneng ka lebaka la thepa ea eona e babatsehang ea ho tenya, ho emisa le ho emulsifying.