Uyini umehluko phakathi kwe-hydroxyyethylcelcellosi kanye cmc?

I-Hydroxyyethyl cellulose (HEC) kanye ne-carboxymethyl cellulose (CMC) yizinto ezijwayelekile ze-cellulose delivatives, esetshenziswa kakhulu ekukhulekeni, ukumiswa kanye nezinhlaka ze-gelling, kepha izakhiwo zazo zamakhemikhali zihlukile. kwehlukile.

I-Hydroxyethyl celtulose itholakala ngokuphendula i-sodium hydroxide ne-ethyl hydroxide. Ine-solubility enhle kanye nezakhiwo ze-bhe ngokomqondo futhi isetshenziswa kabanzi ku-Coatings, izimonyo kanye namalungiselelo emithi. Isici salo esiyinhloko ukuqina kwayo okuqinile ekushintsheni kokushisa kanye nekhono layo lokuhlala uzinzile ngaphakathi kwebanga le-PH.

Ngakolunye uhlangothi, i-carboxmethylcellellulose, ngakolunye uhlangothi, ikhiqizwa ngokusabela i-cellulose nge-chlororose acid futhi iqukethe amaqembu e-carboxy, anikeze ukubonakala okukhulu kanye nekhono lokuthola ama-gels. I-CMC isetshenziswa kakhulu emikhakheni yokudla, umuthi kanye nezimonyo, ikakhulukazi njenge-smilener ne-stabilizer ekudleni.

I-HEC ne-CMC banomehluko omkhulu ekwakhiweni kwamakhemikhali, ukulekelela, ukubonwa kanye nezinkundla zohlelo lokusebenza. Yiziphi izinto ongakhetha kuzo kuncike kwizidingo ezithile zokusetshenziswa nezidingo zokusebenza.