1. Coating industry: It is used as a thickener, dispersant and stabilizer in the coating industry, and has good compatibility in water or organic solvents. As a paint remover.
2. Ceramic manufacturing industry: It is widely used as a binder in the manufacture of ceramic products.
3. Others: This product is also widely used in leather, paper products, fruit and vegetable preservation and textile industries, etc.
4. Ink printing: It is used as a thickener, dispersant and stabilizer in the ink industry, and has good compatibility in water or organic solvents.
5. Plastic: used as forming release agent, softener, lubricant, etc.
6. Polyvinyl chloride: It is used as a dispersant in the production of polyvinyl chloride, and it is the main auxiliary agent for preparing PVC by suspension polymerization.
7. Construction industry: As a water-retaining agent and retarder of cement mortar, it can make the mortar pumpable. In plaster, gypsum, putty powder or other building materials as a binder to improve spreadability and prolong work time. It can be used as paste tile, marble, plastic decoration, paste reinforcement, and can also reduce the amount of cement. The water retention performance of hydroxypropyl methylcellulose HPMC prevents the slurry from cracking due to drying too fast after application, and enhances the strength after hardening.
8. Pharmaceutical industry: coating materials; membrane materials; rate-controlling polymer materials for sustained-release preparations; stabilizers; suspending agents; tablet adhesives; viscosity-increasing agents
nature:
1. Appearance: white or off-white powder.
2. Particle size; the pass rate of 100 mesh is greater than 98.5%; the pass rate of 80 mesh is 100%. Particle size of special specifications is 40~60 mesh.
3. Carbonization temperature: 280-300℃
4. Apparent density: 0.25-0.70g/cm (usually around 0.5g/cm), specific gravity 1.26-1.31.
5. Discoloration temperature: 190-200℃
6. Surface tension: 2% aqueous solution is 42-56dyn/cm.
7. Solubility: Soluble in water and some solvents, such as ethanol/water, propanol/water, etc. in appropriate proportions. Aqueous solutions are surface active. High transparency, stable performance, different specifications of products have different gel temperatures, solubility changes with viscosity, the lower the viscosity, the greater the solubility, different specifications of HPMC have certain differences in performance, and the dissolution of HPMC in water is not affected by pH.
8. With the reduction of methoxyl content, the gel point increases, the water solubility of HPMC decreases, and the surface activity also decreases.
9. HPMC also has the characteristics of thickening ability, salt resistance, low ash powder, pH stability, water retention, dimensional stability, excellent film-forming property, and wide range of enzyme resistance, dispersibility and cohesiveness.
Post time: May-25-2023