China cellulose ether manufacturer
China HPMC factory,have a daily output 150 tons,our products including Hydroxypropyl Methyl Cellulose (HPMC), Redispersible Polymer Powder (RDP) ,which can be widely used in building materials such as dry mix mortar, gypsum based plaster, wall putty, tile adhesive, cement mortar, EIFS, detergent and so on.
High Viscosity Cellulose Ether Hydroxypropyl Methyl Cellulose HPMC
Hydroxypropyl Methyl Cellulose (HPMC) is indeed a high-viscosity cellulose ether. It's commonly used in various industries including construction, pharmaceuticals, and cosmetics.
Here's a breakdown of its properties and uses:
Properties:
- Viscosity: HPMC can have varying viscosities depending on its molecular weight and degree of substitution.
- Solubility: It's soluble in water and some organic solvents.
- Film Forming: It can form films when dry.
- Thermal Gelation: It undergoes thermal gelation, meaning it can gel upon heating and revert to a liquid upon cooling.
Uses:
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Construction Industry:
- Mortars and Renders: HPMC cellulose is used as a water retention agent, thickener, and binder in cement-based mortars and renders.
- Tile Adhesives: It improves workability and adhesion in tile adhesives.
- Gypsum Products: In gypsum-based materials, it improves water retention and workability.
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Pharmaceuticals:
- Tablet Coatings: HPMC is used in tablet coatings for controlled release, taste masking, and moisture protection.
- Ophthalmic Solutions: It's used in ophthalmic solutions for its viscosity-enhancing properties.
- Topical Applications: In creams, lotions, and gels, it acts as a thickener and stabilizer.
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Food Industry:
- HPMC is used as a food additive, primarily as a thickener, emulsifier, and stabilizer.
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Cosmetics:
- It's used in cosmetics for its thickening, emulsifying, and film-forming properties in products like creams, lotions, and shampoos.
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Paints and Coatings:
- In water-based paints and coatings, HPMC is used as a thickener and stabilizer.
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Personal Care Products:
- In toothpaste, it acts as a binder and thickener.
- In hair care products, it provides viscosity and improves the texture.
Other Applications:
- HPMC is also used in detergents, as it aids in controlling viscosity and stabilizing formulations.
In all these applications, the choice of HPMC grade (viscosity, degree of substitution) is crucial to achieve desired properties and performance.