Hydroxyethylcellulose (HEC) waa nonionic, polymer biyo-milmi leh oo ka yimid cellulose iyada oo loo marayo falcelin kiimiko oo taxane ah. Waxaa si weyn looga isticmaalaa warshado kala duwan, oo ay ku jiraan warshadaha saliidda iyo gaaska, iyada oo door muhiim ah ka ciyaarta qodista iyo dhamaystirka dareerayaasha. Xaaladdan oo kale, HEC waxay u shaqeysaa sidii rheol ...
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