I-Hydroxyethyl cellulose (HEC) isetyenziswa ngokubanzi i-nonionic, i-polymer enyibilikayo emanzini ephuma kwi-cellulose. Izicelo zayo eziphambili kwiimveliso zemichiza yemihla ngemihla zivela ekukwazini ukuguqula i-rheology, ukuzinzisa ukwakheka, kunye nokuphucula ukuthungwa kweemveliso.
Iipropati kunye noBuchule be-HEC
I-HEC ibonakaliswe ngokujiya kwayo, ukuxhoma, ukubophelela, kunye neempawu ze-emulsifying. Ibonisa i-pseudoplasticity ephezulu, oku kuthetha ukuba i-viscosity yayo iyancipha phantsi koxinzelelo lwe-chear kodwa ibuyela kwimeko yayo yangaphambili xa uxinzelelo lususiwe. Le propati inenzuzo kwiindlela ezahlukeneyo njengoko ivumela iimveliso ukuba zihlale ziqinile kwaye zizinzile kwishelufu kodwa kulula ukuyisebenzisa okanye ukusasazeka xa isetyenziswa.
Indlela yokusebenza yeHEC ilele kubume bayo bemolekyuli. Amakhonkco e-polymer enza inethiwekhi enokuthi ibambe amanzi kunye nezinye izinto, ukudala i-matrix efana ne-gel. Olu qulunqo lwenethiwekhi luxhomekeke kwiqondo lokutshintshwa kunye nesisindo se-molecular ye-HEC, enokuthi ihlengahlengiswe ukufezekisa i-viscosity efunwayo kunye nokuzinza ekuqulunqweni.
Impembelelo kwiViscosity
Ukujiya isiphumo
I-HEC ichaphazela kakhulu i-viscosity yeemveliso zemichiza yemihla ngemihla ngokwandisa isigaba samanzi. Kwiimveliso zokhathalelo lomntu njenge-shampoos kunye ne-lotions, i-HEC yonyusa i-viscosity, ekhokelela ekutyebeni okucebileyo kunye nokuphucula ukuqonda kwabathengi. Oku kuqiniswa kufezekiswa nge-hydration ye-HEC particles, apho iamolekyu zamanzi zisebenzisana ne-cellulose backbone, ebangela ukuba i-polymer idumbe kwaye yenze isisombululo se-viscous.
Ukugxininiswa kwe-HEC ekuqulunqweni kubaluleke kakhulu ekufezekiseni i-viscosity efunwayo. Kwiindawo ezisezantsi, i-HEC ikwandisa ngokuyinhloko i-viscosity yesigaba samanzi ngaphandle kokuchaphazela iipropati zokuhamba ngokuphawulekayo. Kwiindawo eziphezulu, i-HEC idala i-gel-efana nesakhiwo, ibonelela nge-viscosity ezinzileyo kunye nehambelanayo. Umzekelo, kwiishampu, ukugxilwa kwe-HEC ukusuka kwi-0.2% ukuya kwi-0.5% kunokubonelela nge-viscosity eyaneleyo kwisicelo esigudileyo, ngelixa ugxininiso oluphezulu lunokusetyenziswa kwiijeli okanye iikhrimu ezishinyeneyo.
Shear-Thinning Behaviour
Ubume be-pseudoplastic be-HEC buvumela iimveliso zemichiza yemihla ngemihla ukuba zibonise ukuziphatha kokucheba. Oku kuthetha ukuba phantsi kwesenzo somatshini wokuthulula, ukupompa, okanye ukusabalalisa, i-viscosity iyancipha, okwenza ukuba imveliso ibe lula ukuyiphatha kunye nokusebenzisa. Emva kokuba i-shear force isusiwe, i-viscosity ibuyela kwimeko yayo yangaphambili, iqinisekisa ukuba imveliso ihlala izinzile kwisitya.
Umzekelo, kwiisepha zolwelo, i-HEC inceda ukufezekisa ukulingana phakathi kwemveliso ezinzileyo, engqindilili kwibhotile kunye nesepha enwenwayo ngokulula xa ikhutshwa. Le propati ibaluleke kakhulu kwimixube apho ukusetyenziswa lula kubaluleke kakhulu, njengakwizinto zokuthambisa kunye neegels zeenwele.
Impembelelo kuZinzo
Ukunqunyanyiswa kunye ne-Emulsification
I-HEC iphucula ukuzinza kweemveliso zemichiza yemihla ngemihla ngokusebenza njenge-arhente yokumisa kunye nokuzinzisa. Ikhusela ukuhlukana kweengqungquthela eziqinileyo kunye ne-coalescence ye-droplets yeoli kwi-emulsions, ngaloo ndlela igcina imveliso ye-homogeneous ngexesha. Oku kubaluleke ngakumbi kwiimixube eziqulethe izinto ezinganyibilikiyo, ii-pigments, okanye amasuntswana amisiweyo .
Kwi-lotions kunye ne-creams, i-HEC iqinisa i-emulsions ngokunyusa i-viscosity yesigaba esiqhubekayo, ngaloo ndlela inciphisa ukuhamba kwamaconsi ahlakazekileyo kunye namaqhekeza. Le ndlela yozinziso ibalulekile ekugcineni ukuyondelelana kunye nokusebenza kakuhle kwemveliso kubo bonke ubomi bayo beshelufu. Umzekelo, kwizinto zokuthambisa zokukhusela ilanga, iHEC inceda ukugcina izihluzi zeUV zisasazwe ngokufanayo, ziqinisekisa ukhuseleko olungaguqukiyo kwimitha eyingozi.
Ukugcinwa kobumanzi kunye noLwakhiwo lweFilimu
I-HEC iphinda ifake isandla ekuzinzeni kokwakheka ngokunyusa ukugcinwa komswakama kunye nokwenza ifilimu ekhuselayo kwesikhumba okanye iinwele. Kwiimveliso zokhathalelo lweenwele, le propati yokwenza ifilimu inceda kwimo kunye nokugcina i-hairstyle ngokubamba ukufuma kunye nokubonelela ngomqobo ngokuchasene nezinto ezisingqongileyo.
Kwiimveliso ze-skincare, i-HEC iphucula ukusebenza kwemveliso ngokunciphisa ukulahleka kwamanzi esikhumbeni, ukubonelela ngefuthe elihlala ixesha elide. Olu phawu luluncedo kwiimveliso ezifana ne-moisturizers kunye neemaski zobuso, apho ukugcinwa kwe-hydration yolusu kungumsebenzi ophambili.
Izicelo kwiDaily Chemical Products
Iimveliso zoKhathalelo lomntu
Ekuqulunqweni kokunyamekela komntu, i-HEC isetyenziselwa ngokubanzi ukuqina kwayo kunye nokuzinzisa iipropati. Kwiishampu kunye ne-conditioners, inika i-viscosity efunwayo, iphakamisa ukuzinza kwe-foam, kwaye iphucula ukuthungwa, okukhokelela kumava angcono oluvo lomsebenzisi.
Kwiimveliso zokhathalelo lwesikhumba ezifana neekhrimu, ii-lotions, kunye neegels, i-HEC isebenza njenge-thickener kunye ne-stabilizer, igalelo kwimvakalelo egudileyo kunye nobunewunewu bemveliso. Kwakhona kunceda ukusabalalisa ngokulinganayo izithako ezisebenzayo, ukuphucula ukusebenza kwemveliso .
Iimveliso zaseKhaya
Kwiimveliso zokucoca izindlu, i-HEC idlala indima ekuguquleni i-viscosity kunye nokuzinzisa ukumiswa. Kwi-detergents yamanzi kunye ne-dishwashing liquids, i-HEC iqinisekisa ukuba imveliso ihlala ilula ukuyikhupha ngelixa igcina i-viscosity eyaneleyo yokubambelela kwiindawo, inika isenzo esisebenzayo sokucoca.
Kwii-fresheners zomoya kunye ne-softeners yelaphu, i-HEC inceda ekugcineni ukumiswa okufanayo kwevumba kunye namacandelo asebenzayo, ukuqinisekisa ukusebenza okuhambelanayo kunye namava amnandi omsebenzisi.
I-Hydroxyethyl cellulose (HEC) yinto eguquguqukayo kwaye iyimfuneko ekuqulunqweni kweemveliso zemichiza yemihla ngemihla. Impembelelo yayo kwi-viscosity kunye nokuzinza kwenza ukuba kubaluleke kakhulu ekudaleni iimveliso ezihlangabezana nokulindela kwabathengi ukuthungwa, ukusebenza kunye nokusebenziseka. Ngokuphucula i-viscosity, ukuqinisekisa ukuzinza kwemveliso, kunye nokuphucula iimpawu zesicelo, i-HEC inegalelo elikhulu ekusebenzeni kunye nokubhenela kwabathengi kwiintlobo ezininzi zokunyamekela komntu kunye nemveliso yasekhaya. Njengoko imfuno yomgangatho ophezulu, i-stable, kunye ne-friendly-friendly formulations iqhubeka ikhula, indima ye-HEC kuphuhliso lwemveliso kungenzeka ukuba yande, inikezela ngamathuba amatsha okwenziwa kwezinto ezintsha kwiimveliso zemichiza yemihla ngemihla.
Ixesha lokuposa: Jun-12-2024