Ezimonyweni zobuhle, kunezakhi eziningi zamakhemikhali ezingenambala nephunga, kodwa zimbalwa izakhi ezingezona ezinobuthi. Namuhla, ngizokwethula kini, i-hydroxyethyl cellulose, evame kakhulu ezimonyweni eziningi noma ezidingweni zansuku zonke.
I-Hydroxyethyl Cellulose【I-Hydroxyethyl Cellulose】
Eyaziwa nangokuthi (i-HEC) iyisithako esimhlophe noma esiphuzi ngokuphaphathekile, esingenaphunga, esingenabo ubuthi esinemicu noma esiwuphuphu. Ngenxa yokuthi i-HEC inezakhiwo ezinhle zokujiya, ukumisa, ukuhlakaza, ukuhlanganisa, ukubopha, ukwakha ifilimu, ukuvikela umswakama kanye nokunikeza i-colloid evikelayo, isetshenziswe kabanzi ezisetshenziswa kwezokwelapha kanye nezimonyo.
Izici Zomkhiqizo
1. I-HEC iyancibilika emanzini ashisayo noma abandayo, futhi ayivuthi uma izinga lokushisa eliphezulu noma libila, okwenza ibe nezici eziningi zokuncibilika kanye nokuthamba, kanye ne-gelation engashisi;
2. I-non-ionic ngokwayo ingahlala ndawonye nezinye izinhlobo eziningi zama-polymer ancibilikayo emanzini, ama-surfactants kanye nosawoti, futhi iyi-colloidal thickener enhle kakhulu equkethe izixazululo ze-dielectric ezigxile kakhulu;
3. Umthamo wokugcina amanzi uphakeme kabili kunowe-methyl cellulose, futhi unokulawulwa okungcono kokugeleza kwamanzi;
4. Uma kuqhathaniswa ne-methyl cellulose eyaziwayo kanye ne-hydroxypropyl methyl cellulose, ikhono lokuhlakaza le-HEC libi kakhulu, kodwa i-colloid evikelayo inekhono eliqine kakhulu.
indima ezimonyweni
Isisindo sama-molecule ezimonyo, ubuningi bamakhemikhali emvelo, amakhemikhali okwenziwa kanye nezinye izinto zihlukile, ngakho-ke kuyadingeka ukwengeza i-ejenti yokuncibilikisa ukuze zonke izithako zidlale indima engcono kakhulu. Izakhiwo zokuncibilika kanye ne-viscosity ze-hydroxyethyl cellulose zidlala indima ngokugcwele, futhi zigcine ibhalansi, ukuze isimo sokuqala sezimonyo sigcinwe ngezikhathi ezishintshanayo zokubanda nokushisa. Ngaphezu kwalokho, inezakhiwo zokufumisa futhi ivame kakhulu ezimonyo zemikhiqizo yokufumisa. Ikakhulukazi, ama-mask, ama-toners, njll. cishe konke kuyangezwa.
umphumela ongemuhle
I-Hydroxyethyl cellulose esetshenziswa ezimonyweni empeleni ayinabo ubuthi uma kusetshenziswa izithambisi, izithisi, njll. Futhi ibhekwa njengomkhiqizo wokuphepha kwemvelo ohamba phambili yi-EWG.
Isikhathi sokuthunyelwe: Novemba-16-2022