Kev siv hydroxyethyl cellulose Raws li ib qho tsis-ionic surfactant, hydroxyethyl cellulose muaj cov khoom nram qab no ntxiv rau kev ua haujlwm ntawm suspending, thickening, dispersing, floating, bonding, film forming, dej tuav thiab muab kev tiv thaiv colloid: 1. HEC yog soluble hauv kub. dej los yog co...
Nyeem ntxiv