200000 viscosity hydroxypropyl methyl cellulose

200000 viscosity hydroxypropyl methyl cellulose

200000 viscosity hydroxypropyl methyl cellulose
Views: 0 Author: Site Editor Publish Time: 2022-06-07 Origin: Site
200000 viscosity hydroxypropyl methyl cellulose HPMC
【 Physical and chemical properties 】

1, appearance: white or white powder.

2, particle size; The pass rate of 100 mesh was more than 98.5%. The pass rate of 80 mesh is more than 100%.

3, carbonization temperature: 280–300℃

4, apparent density: 0.25–0.70/cm3(usually about 0.5g/cm3), specific gravity 1.26-1.31.

5, color change temperature: 190–200℃

6. Surface tension: 42-56DYn /cm for 2% aqueous solution.

7, soluble in water and some solvents, such as appropriate proportion of ethanol/water, propanol/water, trichloroethane, etc.

Aqueous solution has surface activity. High transparency, stable performance, different specifications of the product gel temperature

Different, solubility changes with the viscosity, the lower the viscosity, the greater the solubility, different specifications of HPMC

The solubility of HPMC in water is not affected by PH value.

8. The surface activity of HPMC also decreases with the decrease of methoxyl content, the increase of gel point and the decrease of water solubility.

9, HPMC also has thickening ability, salt resistance low ash powder, PH stability, water retention, dimensional stability,

Excellent film forming, as well as a wide range of enzyme resistance, dispersity and adhesion properties. The product combines a lot of physics and chemistry