(HEMC) is a kind of combined anther that contains both ionic and non-ionic bases, crboxymethyl and hydroxyethyl, it is endued with ionic and non-ionic features. It gives solutions which the single above cellulose can not gave and plays dual roles of carboxymethyl and hydroyethyl cellulose for there exist both carboxymethyl and hydroxyethyl bases in the dehydrated glucose monomer. Moreover, it offers some other characteristics. So the HEMC is widely used in carious industries such as food, medicine, personal care and cleaning products, products, plasters and paints, macromolecule polymerization, ceramics,oil and gas exploration, building and construction, textiles, paper and printing and dyeing, etc.
Owing to its excellent performance in modeling, holding water, and taking shape, the HEMC acts as a binder and stabilizer in toothpaste. It makes toothpaste uniform and tender. Since the HEMC is a good material that is resistant to salt and acid/alkali, it finds utilities in various medical toothpastes and other personal care and cleaning products. Generally, it brings about much more effective advantages than the mixture of carboxymethyl and hudrocyethyl cellulose.
The viscosity of the HEMC solution is very stable over a wide PH range and a varying temperature. Also the HEMC is salt-proof. So it is can be used as a stabilizer and thickener in cosmetic, food and pharmacy to prevent solutions from subsiding into layers and keep solutions flowing freely even if being aged for a long set the standard among oilfield flowing freely even if being aged for a long time.
The  polymers have long set the standard among oilfield chemicals for drill-ling, completion, and walkover fluids
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