construction mortar admixture HPMC

Specifications:

• used in plaster mortor, putty water-resistant, interface agent, exterior wall adhesive putty, ceramic tile adhesive, it can play a role of improving the plasticity and water retention of mortar greatly, have the effect of prevent crack can enhance the strength of cement.

Description:

1. Appearance: white or almost white powder.
2. Granularity: pass rate of 100 mesh is greater than 98.5%; pass rate of 80 mesh is greater than 100%.
3. Carbonization temperature: 280-300°C
4. Apparent density: 0.25-0.70g cm³ /(usually 0.5g/cm³ or also), and the proportion is 1.26-1.31.
5. Color change temperature: 190-200°C
6. Surface tension: the surface tension of 20% aqueous solution is 42-56dyn/cm at 25°C.
7. Solubility: Soluble in water and some solvents, such as an appropriate proportion of ethanol/water, propanol/water, dichloroethane etc. Aqueous solution is of surface activity with high transparency and stable performance. The gel temperature of products with different specifications is different. Solubility varies with the viscosity; the lower the viscosity, the greater the solubility. There are some differences between HPMC with different specifications. The dissolution of HPMC in water will not be affected by pH value.
8. As the content of methoxyl decreases, the gel point increases, the water solubility decreases and the surface activity also drops.
9. HPMC also has thickening ability and characteristics such as salt tolerance, low ash content, PH stability, water retention, dimensional stability, excellent film-forming ability and wide enzyme resistant ability, dispersibility as well as cohesivenes