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Hydroxyethyl carboxymethyl cellulose /HECMC
HECMC is a kind of modified water-soluble cellulose ether with the advantage of both carboxymethyl cellulose (CMC) and hydroxyethyl cellulose (HEC) because of the presence of the nonionic hydroxyethyl groups.
1, High water-binding capacity and good flocculating action on suspended solids just like CMC, and more compatible than CMC with salts.
2, Higher viscosity because of its superior capability to cross-link with multivalent cations.
3, it can be easily gelled by cross-linking with cations such as iron, aluminum, chromium to supply an efficient media for suspending particulate matter.
Specification:
Items | Technical index |
MS of hydroxyethyl | 0.3-1.1 |
DS of carboxymethyl | 0.7-2.0 |
Viscosity( mPa.S,25 oC,2%sl) | 5-150000 |
PH(2% solution) | 5.5-7.5 |
Heat resistance of film(oC) | 230min |
Tensile strength of film(Mpa,50% RH) | 68-70 |
Application:
1 Oil-recover: HECMC have excellent ability to control over fluids containing high salinity and also can effectively reduce water loss in cement slurries
2 Fracturing fluids: suitable for suspending and transporting sand or other particulate into a well bore and the fracture.
Packing: 25KG/bag.