- Time:2024/1/22Posted:SHANDONG KUNDU CHEMICAL CO.,LTD.
Kundu Chemical-KDOCEL HPMC has a wide range of usages. For example, it can be a thickener, which in the coating industry can make the layer bright and delicate, prevent powder removal, and improve the leveling performance; it can also be a dispersant, which can make the synthetic resin have particles. It has the characteristics of regular shape, appropriate specific gravity, and excellent processing performance. Apart from that, it has many usages. So how to identify the best quality when choosing?
1. Appearance: white or off-white powder;
2. Particle size:100 mesh pass rate is greater than 98.5%; The pass rate of 80 mesh is 100%;
3. Carbonization temperature: 280-300℃;
4. Apparent density: 0.25-0.70 g /cm3;
5. Discoloration temperature: 190-200℃;
6. Surface tension: 2% aqueous solution is 42-56 dyn/cm;
7. Soluble in water and some solvents, such as ethanol/water, propanol/water, trichloroethane in appropriate proportions. Aqueous solutions are surface active. It has high transparency and stable performance. Products of different specifications have different gel temperatures and solubility changes with viscosity. The lower the viscosity, the greater the solubility. Different specifications have certain differences in performance. The dissolution of HPMC in water is not affected by the PH value.
As the Methoxy group content decreases , the gel point of HPMC increases, the water solubility decreases, and the surface activity also decreases. HPMC also has thickening properties ,low ash content, PH stability, water retention, dimensional stability, excellent film-forming properties, and a wide range of enzyme resistance, dispersion and adhesion properties.