Hydroxypropyl methyl cellulose (HPMC) is a kind of nonionic polymer, which is made of natural polymer cellulose as raw material. The product is odorless, tasteless, non-toxic self-colored powder, can be dissolved in cold water to form a transparent viscous solution, with thickening, adhesion, dispersion, emulsification, film forming, suspension, adsorption, gelling, surface activity, moisture retention and protection of colloid and other characteristics.
1, Natural raw materials, low irritation, mild performance, safety and environmental protection;
2, water solubility and thickening: can be quickly dissolved in cold water, dissolved in some organic solvents and water and organic solvent mixture;
3, thickening and viscosity: a small amount of dissolved to form a transparent viscous solution, high transparency, stable performance, solubility varies with the viscosity, the lower the viscosity, the greater the solubility; Effectively improve the flow stability of the system;
4, salt resistance :HPMC is a non-ionic polymer, relatively stable in the water solution of metal salt or organic electrolyte;
5, surface activity: the aqueous solution of the product has surface activity, with emulsification, protection of colloid and relative stability and other functions and performance; Surface tension :2% aqueous solution 42~ 56dN /cm;
6, pH stability: the viscosity of the aqueous solution is stable within the range of pH 3.0-11.0;
7, water retention effect :HPMC hydrophilic ability, added to slurry, paste, paste products to maintain high water retention effect;
8, hot gelation: water solution heated to a certain temperature becomes opaque, until the formation of (poly) flocculation state, so that the solution lost viscosity. But as it cools it will return to its original solution state. The temperature at which gelation occurs depends on the type of product, the concentration of the solution, and the heating rate.
9, other characteristics: excellent film formation, as well as a wide range of enzyme resistance, dispersion and bonding characteristics.