Poly (vinyl alcohol) is a kind of water-soluble polymer obtained by hydrolysis of polyvinyl acetate instead of monomer polymerization. It is soluble in glycerin at 120-150 ℃, but becomes jelly at room temperature.

In order to improve the early strength of concrete, triethanolamine, calcium chloride, industrial salt, etc. will be added to the water reducing agent, especially in winter or in the prefabricated component factory and cement product factory with high requirements for early strength.

Hydroxyethyl cellulose HEC is a white or slightly color odorless, tasteless and easy-flowing powder, 40 mesh sieving ≥99%; softening temperature: 135℃—140℃; apparent density: 0.35—0.61g/cm3, decomposition temperature: 205 ℃-210℃; slower burning speed; equilibrium moisture content: 23℃; 6% at 50%rh, ......

As a non-ionic surfactant, hydroxyethyl cellulose has the following properties in addition to thickening, suspending, bonding, emulsifying, film-forming, dispersing and retaining water and providing protective film:

There are three general methods of use.

HEC is a non-ionic water-soluble colloid. Because it has the properties of thickening, suspending, bonding, emulsifying, stabilizing film formation, dispersing, retaining water and providing protective colloids, it can be used as a surfactant and colloidal protection. Agents, dispersants, dispersion......