IHydroxyethylcellulose (HEC) i-non-ionic, i-polymer enyibilikayo emanzini ephuma kwi-cellulose, esetyenziswa ngokubanzi kumashishini ahlukeneyo afana nezithambiso, amayeza, ukutya kunye namalaphu. Iimpawu zayo ezikhethekileyo zenza ukuba ibe yinto exabisekileyo kwimiqulu emininzi, kubandakanywa njenge-thickener, emulsifier, kunye ne-stabilizer. Enye yeenkxalabo eziqhelekileyo ezinxulumene ne-hydroxyethylcellulose yindalo yayo encangathi.
Ukuqonda iHydroxyethylcellulose (HEC)
Ulwakhiwo neePropati
I-HEC yenziwe nge-etherification ye-cellulose kunye ne-ethylene oxide, ebangela i-polymer ye-hydrophilic eneempawu ezintle zokubopha amanzi. Iqondo lokutshintshwa (DS) lwamaqela e-hydroxyethyl kwi-cellulose backbone imisela ukunyibilika kwayo, i-viscosity, kunye nezinye iimpawu. Ngokubanzi, amaxabiso aphezulu e-DS akhokelela ekwandeni kokunyibilika kwamanzi kunye ne-viscosity.
Usetyenziso
Izithambiso: I-HEC isetyenziswa kakhulu kwimixube yezithambiso efana neloshini, iikhrimu, iishampu, kunye neejeli njengesixhobo sokujiya, i-emulsifier, kunye ne-stabilizer. Iphucula ukuthungwa kwemveliso, ibonelela ngokugudileyo, kwaye iphucula amava oluvo ngokubanzi.
Amachiza: Kumayeza, i-HEC isetyenziswa kwiindlela ezahlukeneyo zedosi kubandakanya i-ointments, ukumiswa, kunye nolwelo lomlomo ngenxa yokuqina kwayo kunye nokuxhoma iipropathi.
Ishishini lokutya: I-HEC iqeshwe kwiimveliso zokutya ukuguqula ukuthungwa, ukuzinzisa i-emulsions, kunye nokulawula i-viscosity kwizicelo ezifana neesosi, izinxibo kunye neziselo.
Ukhathalelo lobuqu: Ngaphandle kwezinto zokuthambisa, i-HEC ifumana izicelo kwiimveliso zokhathalelo lomntu ezifana ne-toothpaste, ukwakheka kweenwele, kunye neemveliso zococeko olusondeleyo.
Izinto eziphembelela ukuncamathela
Ugxininiso: Uxinzelelo oluphezulu lwe-HEC lunokukhokelela ekwandeni kokuncamathela ngenxa yokusebenzisana okukhulu phakathi kwamatyathanga epolymer, okukhokelela kwisisombululo se-viscous.
Ubushushu: Ukuncamathela kunokwahluka ngotshintsho lobushushu. Kwiqondo lokushisa eliphezulu, izisombululo ze-HEC zihlala zimanzi, zinciphisa ukunamathela, ngelixa ukushisa okuphantsi kunokunyusa i-viscosity kunye nokunamathela.
i-pH: i-pH inokuchaphazela ukunyibilika kunye ne-viscosity yezisombululo ze-HEC. Iimeko ze-pH ezigqithisileyo zinokubangela ukuba i-HEC ikhuphe okanye yenze iijeli, ezichaphazela ukunamathela.
Izongezo: Ezinye izithako ekuqulunqweni zingasebenzisana ne-HEC, ziguqule iimpawu zayo. I-surfactants, i-salts, kunye ne-electrolyte inokuchaphazela ukunyibilika kunye ne-viscosity yezisombululo ze-HEC, ngenxa yoko zibe nefuthe lokuncamathela.
Ubuchule bokuLawula ukuNcangathi
Lungiselela Ukuqulunqwa: Ukulungelelanisa ukugxininiswa kwe-HEC kunye nezinye izithako ekuqulunqweni kunokunceda ukulawula ukunamathela. Ukulungelelanisa umlinganiselo we-HEC kwamanye amacandelo kunokufezekisa ukuthungwa okufunwayo kunye ne-viscosity.
Ulawulo lobushushu: Ukubeka iliso kunye nokulawula amaqondo okushisa anokuchaphazela ukuziphatha kwe-rheological yezisombululo ze-HEC, ukunciphisa ukunamathela ngexesha lokuvelisa.
Ukulungelelaniswa kwe-pH: Ukuqinisekisa ukuba imixube ingaphakathi koluhlu lwe-pH olufanelekileyo lwe-HEC ukunyibilika kunye nokuzinza kunokuthintela imiba efana nemvula kunye nokwakheka kwejel, ngaloo ndlela kuncitshiswe ukunamathela.
Ukusetyenziswa kwezithako ezongezelelweyo: Ukubandakanya izongezo ezifana ne-thickeners, emollients, okanye i-humectants inokuguqula ukuthungwa kunye nokunciphisa ukunamathela ngelixa uphucula ukusebenza ngokubanzi kwemveliso.
I-Particle Ubungakanani bokuNcitshiswa: Ukulungiselela izisombululo ze-HEC ezinobungakanani bezinto ezincinci kunokuphucula ukusabalalisa kunye nokunciphisa ukunamathela ngokukhuthaza ukusebenzisana okungcono kunye nezinye izithako.
I-Homogenization: Izisombululo ze-HEC ze-Homogenizing zinokunceda ukufezekisa ukusabalalisa okufanayo kwe-polymer, ukunciphisa amathuba okuba ne-clumping kunye nokunamathela.
IHydroxyethylcellulose yipolymer eguquguqukayo enezicelo ezininzi kumashishini ahlukeneyo. Ngelixa ibonelela ngeenzuzo ezixabisekileyo ezinje ngokujiya, ukuzinzisa, kunye neempawu zokumilisela, ukuncamathela ngamanye amaxesha kunokuba yinkxalabo, ngakumbi kwimixube apho ukuthungwa kunye neempawu zoluvo zibalulekile. Ukuqonda izinto eziphembelela ukuncamathela kunye nokusebenzisa iindlela ezifanelekileyo zokulawula kunokuqinisekisa ukusetyenziswa okusebenzayo kwe-HEC kwizicelo ezahlukeneyo, ukuphucula ukusebenza kwemveliso kunye nokwaneliseka kwabathengi.
ngelixa i-hydroxyethylcellulose ingabonakalisa ukunamathela phantsi kweemeko ezithile, ukuyila ngokufanelekileyo, ukulawulwa kweqondo lokushisa, ukulungiswa kwe-pH, kunye nokusetyenziswa kwezithako ezongezelelweyo kunokunciphisa lo mbandela, okuvumela ukusetyenziswa ngokufanelekileyo kwe-HEC kwizicelo ezahlukeneyo.
Ixesha lokuposa: Mar-19-2024