HPMC Safety and Production
Raw Material Source: Made from cotton cellulose through processes such as alkali treatment and etherification.
Safety Certification: FDA approved for oral formulations; WHO has not set a daily intake limit (excessive intake may cause diarrhea).
Grading Standards: Classified into three types according to purity: pharmaceutical grade (Hypromellose), food grade, and industrial grade.
Core Applications
Building Materials
Cement Mortar Water Retention Agent: Extends setting time by approximately 30% and reduces hollowness by over 40%.
Tile Adhesive: Increases bond strength by over 1.5 MPa.
Pharmaceutical Preparations
Tablet Coating and Sustained-Release Carcass Material (Pharmaceutical Grade Hypromellose).
Eye Drop Thickener: Stabilizes solution pH within the range of 3-11.
Industrial Applications
PVC Suspension Polymerization Dispersant: Replaces traditional polyvinyl alcohol systems.
Coating Thickener: Increases coating viscosity by 80-120%.
Hydroxypropyl Methylcellulose
HPMC is the abbreviation for hydroxypropyl methylcellulose, a non-ionic cellulose mixed ether. It possesses thickening, water-retaining, and film-forming properties, and is widely used in building materials, pharmaceuticals, food, and other fields.
HPMC Properties
Chemical Properties: White powdery cellulose derivative, soluble in cold water and some organic solvents. Aqueous solutions exhibit high transparency (methoxyl content 28-30%, hydroxypropoxyl content 7-10%).
Thermal Stability: Gel temperature varies with methoxyl content; carbonization temperature 280-300℃; discoloration temperature 190-200℃.
Physical Properties: Viscosity range 3-50 mPa·s (varies greatly between different grades); bulk density 0.25-0.70 g/cm³.
We are a manufacturer of custom cellulose ethers (HPMC) and redispersible latex powders (VAE) in China, supporting 25kg sample packaging and global delivery.
Our main products include Hydroxypropyl Methylcellulose (HPMC), Methyl Hydroxyethyl Cellulose (MHEC), Hydroxyethyl Cellulose (HEC), and Carboxymethyl Cellulose (CMC), which are used in construction chemicals, pharmaceutical chemical additives, coating chemical additives, and detergent industries.
Our products have 99% purity, excellent stability, and superior adhesive properties, capable of meeting various complex and diverse application needs. We offer customized products and services to meet the specific requirements of our customers.