PRODUCT INTRODUCTION

HPMC is a non-ionic water-soluble cellulose ether with multiple functional properties after dissolving in water. It can be used as a thickener, adhesive, surfactant, protective colloid, suspending agent and water retaining agent.

PHYSICAL AND CHEMICAL PROPERTIES

1. Appearance: white or off-white powder.

2. Particle size; 100 mesh pass rate is greater than 98.5%; 80 mesh pass rate is greater than 100%.

3. Carbonization temperature: 280-300℃

4. Apparent density: 0.25-0.70/cm3 (usually around 0.5g/cm3), 5. Specific gravity 1.26-1.31.

6. Color change temperature: 190-200℃

7. Surface tension: 2% aqueous solution is 42-56dyn/cm.

8. Soluble in water and some solvents,

9. Such as ethanol/water, propanol/water, trichloroethane in appropriate proportions. The aqueous solution has surface activity. High transparency,

10. Stable performance,

11. Products of different specifications have different gel temperatures,

12. Solubility changes with viscosity. The lower the viscosity, the greater the solubility.

13. The performance of HPMC of different specifications is different.

14. The dissolution of HPMC in water is not affected by pH value.

15. As the methoxy content of HPMC decreases, the gel point increases, the water solubility decreases, and the surface activity also decreases.

16. HPMC also has the characteristics of thickening ability, salt resistance, low ash powder, pH stability, water retention, dimensional stability, excellent film-forming properties, and wide enzyme resistance, dispersibility and adhesion.

USES

Industrial grade HPMC is mainly used as a dispersant in the production of polyvinyl chloride, and is the main auxiliary agent for the preparation of PVC by suspension polymerization. In addition, it is used as a thickener, stabilizer, emulsifier, excipient, water retention agent, film-forming agent, etc. in the production of other petrochemical, coatings, building materials, paint removers, agricultural chemicals, inks, textile printing and dyeing, ceramics, papermaking, cosmetics and other products. The application in synthetic resin can make the obtained products have the characteristics of regular particles, looseness, appropriate apparent specific gravity, excellent processing performance, etc., thus basically replacing gelatin and polyvinyl alcohol as dispersants. In addition, in the construction process of the building industry, it is mainly used in mechanized construction such as wall building, plastering, caulking, etc.; especially in decorative construction, it is used to paste tiles, marble, plastic decorations, with high bonding strength, and can also reduce the amount of cement. It is used as a thickener in the coating industry to make the coating bright and delicate, without powder shedding, and improve leveling performance.