Hydroxyethylcellulose (HEC) ndi polima wosungunuka m'madzi womwe umagwiritsidwa ntchito popanga ma gels chifukwa chakukhuthala kwake, kukhazikika, komanso mphamvu zake. Ma gels a HEC amagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikiza zinthu zosamalira anthu, mankhwala, ndi chakudya. Kupanga gel osakaniza HEC, polima ...
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