Raws li cov tsis-ionic surfactant, hydroxyethyl cellulose (HEC) muaj cov khoom nram qab no ntxiv rau cov thickening, suspending, binding, flotation, film-forming, dispersing, retaining water thiab muab kev tiv thaiv colloids: 1. HEC yog soluble hauv dej kub los yog txias. , thiab tsis precipitate ntawm high tem ...
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