Lefatšeng la lik'hemik'hale, ho na le metsoako e mengata e nang le thepa e tšoanang empa e fapane ka ts'ebeliso ea eona. Mohlala o mong ke hydroxypropyl methylcellulose (HPMC) le hydroxyethyl cellulose (HEC). Li-derivatives tsena tse peli tsa cellulose li sebelisoa haholo liindastering tse fapaneng, empa ho utloisisa thepa ea tsona e ikhethang ho bohlokoa ho khetha mofuta o nepahetseng bakeng sa ts'ebeliso e itseng.
Hydroxypropyl methylcellulose, eo hangata e tsejoang e le HPMC, ke motsoako oa maiketsetso oa selulose. E fumanoa ka ho phekola cellulose ea tlhaho ka propylene oxide le methyl chloride, le ho hlahisa lihlopha tsa hydroxypropyl le methyl ka ho latellana. Phetoho ena e ntlafatsa ho qhibiliha ha metsi ho cellulose le ho ntlafatsa thepa ea eona ka kakaretso. Ka lehlakoreng le leng, hydroxyethyl cellulose (HEC) le eona ke derivative ea cellulose e fumanoang ke karabelo ea cellulose ea tlhaho le ethylene oxide. Ho kenngoa ha lihlopha tsa hydroxyethyl ho fella ka ho eketseha ha ho qhibiliha ha metsi le thepa e teteaneng.
E 'ngoe ea liphapang tse kholo lipakeng tsa HPMC le HEC ke libaka tsa bona tsa kopo. HPMC e na le mefuta e mengata ea tšebeliso indastering ea kaho. E sebelisoa haholo joalo ka motenya lihlahisoa tse thehiloeng ho samente joalo ka likhomaretsi tsa lithaele, lirekere tsa motsoako o omileng le metsoako ea ho ikemela. Ka lebaka la thepa ea eona ea ho boloka metsi, HPMC e ntlafatsa ho sebetsa, ho khomarela le ho tšoarella ha thepa ena ea mohaho. Ho feta moo, HPMC e sebelisoa e le moemeli oa ho etsa lifilimi ka lipente le lipente, e fana ka ho hanyetsa metsi ka mokhoa o babatsehang le ho phatsima.
HEC, ka lehlakoreng le leng, e sebelisoa haholo-holo tlhokomelong ea botho le litlolo. E sebelisoa e le motenya, emulsifier le stabilizer ka litlolo, lotions, shampoos le lihlahisoa tse ling tsa botle. HEC e ntlafatsa viscosity ea liforomo tsena, e leng se hlahisang sebopeho se ntlafetseng, ho ata le ho sebetsa ha sehlahisoa ka kakaretso. Bokhoni ba eona ba ho etsa lifilimi bo boetse bo etsa hore e be motsoako o motle oa li-gels tsa moriri le li-mousses, tse fanang ka ho tšoarella nako e telele ntle le ho khomarela.
Phapang e 'ngoe ea bohlokoa ke mofuta oa viscosity oa metsoako ena. HPMC ka kakaretso e na le viscosity e phahameng ho feta HEC. Phapang ena ea viscosity e etsa hore HEC e be e loketseng haholoanyane bakeng sa lits'ebetso tse hlokang ts'ebetso e tlase ho isa ho e itekanetseng. HEC e fana ka botsitso bo botle le taolo ea phallo mekhoeng ea mokelikeli, ho netefatsa ho ajoa ha metsoako e sebetsang. Ka lehlakoreng le leng, viscosity e phahameng ea HPMC e etsa hore e tšoanelehe bakeng sa lits'ebetso tse hlokang ho tenya ho isa ho tse phahameng, joalo ka thepa ea kaho.
Ho feta moo, HPMC le HEC li fapane ka ho lumellana ha tsona le metsoako e meng ea lik'hemik'hale. HPMC e na le tšebelisano e ntle haholo le mefuta e mengata ea li-additives le mamello e ntle ea matsoai le li-surfactants, e leng se etsang hore e sebetsane le mefuta e mengata ea metsoako. HEC, le hoja ka kakaretso e lumellana le metsoako e mengata, e ka 'na ea e-ba le mathata a ho lumellana le matsoai a itseng, li-acids le li-surfactants. Ka hona, ha u khetha pakeng tsa HPMC le HEC, ke habohlokoa ho nahana ka litlhoko tsa ho lumellana ha moralo o itseng.
Ka kakaretso, HPMC le HEC, joalo ka lihlahisoa tsa cellulose, li na le thepa ea tsona e ikhethang le lits'ebetso. Ho utloisisa phapang pakeng tsa metsoako ena ke habohlokoa ho khetha motsoako o loketseng bakeng sa kopo e itseng. HPMC e sebelisoa haholo indastering ea kaho e le setsi se teteaneng le sa ho etsa lifilimi, ha HEC e sebelisoa haholo-holo lihlahisoa tsa tlhokomelo ea botho e le motenya le botsitso. Ka ho nahana ka litlhoko tsa viscosity le ho lumellana le lisebelisoa tse ling, ho ka khethoa derivative ea cellulose e loketseng ka ho fetisisa, ho netefatsa ts'ebetso e nepahetseng le liphello tse lakatsehang sehlahisoa sa ho qetela.
Re leboha tšebelisano ea hau le JINJI CHEMICAL.
Nako ea poso: Nov-14-2023