IHydroxyethylcellulose (HEC) iyipolymer evamile encibilika emanzini esetshenziswa kabanzi kuzimonyo nemikhiqizo yokunakekela umuntu. Ngokuvamile isetshenziswa njenge-thickener, stabilizer kanye nefilimu yangaphambili emikhiqizweni ehlukahlukene yokunakekelwa kwesikhumba, ama-shampoos, ama-gel okugeza, ama-lotions, ama-gel neminye imikhiqizo. Ukuphepha kwayo sekuthole ukunakwa okusabalele emkhakheni wezimonyo.
Izakhiwo zamakhemikhali kanye nendlela yokusebenza
I-Hydroxyethyl cellulose yenziwa ngokwelapha i-cellulose nge-sodium hydroxide bese isabela nge-ethylene oxide. I-Cellulose iyi-polysaccharide etholakala ngokwemvelo ezitshalweni, futhi ngale nqubo, ukuncibilika kwamanzi kwe-cellulose kuyathuthukiswa, okuyenza ifanelekele ukusetshenziswa ekwakhiweni okusekelwe emanzini. I-Hydroxyethylcellulose inomphumela omuhle wokuqina, ongakhuphula i-viscosity yomkhiqizo, okwenza umkhiqizo ube bushelelezi futhi ube lula ukuwusebenzisa ngesikhathi sokusetshenziswa. Ukwengeza, i-HEC nayo ikhiqiza ifilimu futhi ingakha ifilimu evikelayo ebusweni besikhumba noma izinwele ukuvimbela ukuhwamuka kwamanzi futhi idlale indima yokuthambisa.
Ukuphepha kwe-Hydroxyethyl Cellulose
Ukuphepha kwe-hydroxyethyl cellulose kuye kwahlolwa izinhlangano eziningi ezigunyaziwe. Ngokokuhlolwa kweKomidi Lokubuyekeza Izithako Zezimonyo (CIR) e-United States kanye ne-European Cosmetic Regulation (EC No 1223/2009), i-Hydroxyethylcellulose ithathwa njengesithako esiphephile sezimonyo. Ngaphakathi kohlu olunqunyiwe lokugxila kokusetshenziswa, i-HEC ayibangeli ukulimala empilweni yomuntu.
Ucwaningo lwe-Toxicological: Ucwaningo oluningana lwe-toxicological lubonise ukuthi i-Hydroxyethylcellulose ayibangeli ukucasuka kwesikhumba noma ukungezwani komzimba. Akukho ukuhlolwa kobuthi obunamandla noma ukuhlolwa kobuthi besikhathi eside okutholile ukuthi i-HEC inobuthi be-carcinogenic, i-mutagenic noma yokuzala. Ngakho-ke, kubhekwa kabanzi njengesithako esithambile nesingenabungozi esikhumbeni namehlo.
Ukumuncwa kwesikhumba: Ngenxa yesisindo sayo esikhulu samangqamuzana, iHydroxyethylcellulose ayikwazi ukudlula emgodleni wesikhumba futhi ingene ekujikelezeni kwesistimu yomzimba. Eqinisweni, i-HEC yakha ifilimu yokuzivikela ngemva kokusetshenziswa, ehlala phezu kwesikhumba ngaphandle kokungena ekujuleni kwesikhumba. Ngakho-ke, ayibangeli imiphumela yesistimu emzimbeni womuntu, okuthuthukisa ukuphepha kwawo.
Ukuphepha kwendawo ezungezile: I-Hydroxyethylcellulose iyakwazi ukubola endaweni ezungezile futhi ngeke ibangele ukungcola kwesikhathi eside ku-ecosystem. Ukuphepha kwayo kwemvelo kuye kwaqashelwa yizinhlangano ezivikela imvelo.
Ukuhlolwa kwesicelo nokuphepha kuzimonyo
Ukugcwala kwe-hydroxyethyl cellulose ezimonyoni kuvamise ukuba phansi, ngokuvamile phakathi kuka-0.1% no-2%. Ukugxila kokusetshenziswa okunjalo kungaphansi kakhulu komkhawulo wokuphepha owaziwayo, ngakho-ke kuphephe ngokuphelele ukuthi kusetshenziswe kulezi zimo. Ngenxa yokuqina nokuhambisana kwayo okuhle, i-HEC isetshenziswa kabanzi kuzimonyo ezihlukahlukene ukuze kuthuthukiswe ukuthungwa kanye nolwazi lomsebenzisi lomkhiqizo.
I-Hydroxyethyl cellulose iyisithako esisetshenziswa kakhulu futhi esiphephe kakhulu kuzimonyo. Kungakhathaliseki ukuthi ukusetshenziswa kwesikhathi esifushane noma ukuxhumana kwesikhathi eside, i-HEC ayibonisi noma yikuphi ukulimala okungase kube khona empilweni yomuntu. Ngesikhathi esifanayo, ubungane bayo bezemvelo buyenza ibe isithako sezimonyo esidumile namuhla njengoba intuthuko esimeme kanye nokuqwashisa ngemvelo kukhula kancane kancane. Abathengi akudingeki bakhathazeke ngokuphepha kwayo lapho besebenzisa imikhiqizo equkethe i-hydroxyethyl cellulose, futhi bangajabulela isipiliyoni sokusebenzisa esihle kakhulu nemiphumela eyilethayo.
Isikhathi sokuthumela: Sep-02-2024