Hydroxyethyl methyl cellulose (HEMC) is a non-ionic cellulose ether mixture made from cotton and wood through processes such as alkalization, ethylene oxide, and chloromethane etherification. It has good dispersion, emulsification, thickening, bonding, water retention, and encapsulation properties, and is a thickener, binder, moisture retention agent, dispersant, suspension agent, emulsifier, and stabilizer. Widely used in building materials, water-based latex coatings, printing inks, daily chemicals, oil drilling and other fields, it is similar to HPMC in nature, but due to the presence of hydroxyethyl, HEMC is easier to dissolve in water, the solution is more compatible with salt, and has a higher gel temperature.
Specification of Hydroxyethyl Methyl Cellulose (HEMC):
HEMC C C series products of C series (regular products) |
Model Type |
viscosity
viscosity（BK,2%)
|
典型特性
Characteristic
|
Ceramic tile adhesive
Tile adhesive
|
Plastering/Mortar
mortar / to plaster
|
HE5515 |
18000-22000 |
耐温好 Good temperature resistance |
●●● |
●●● |
HE6509 |
30000-35000 |
High temperature resistance |
●●● |
●●● |
HE7511 |
45000-55000 |
High temperature resistance |
●●● |
●●● |
HE8515 |
60000-70000 |
High temperature resistance |
●●● |
●●● |
HE9516 |
20000 |
High temperature resistance |
●●● |
●●● |
Physical and chemical properties of hydroxyethyl methyl cellulose
Items |
Specifications |
Unit |
form |
white powder |
|
水分 |
≤7 |
|
PH value |
4.0-8.0 |
|
ash content |
≤5 |
|
Brookfield LV, 2 aqueous solutions (20 ℃) |
4800-7200 |
mPa. s |
Advantages of Hydroxyethyl Methyl Cellulose
Good thickening |
Water retention, anti flow hanging |
Good rheological control |
a long time |
Good surface |
Strong ability to transform |
High gel temperature |
Non-ionic form |
Good solubility |
Stable pH value |
