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HPMC Hydroxypropyl Methyl Cellulose from Reliable China Suppliers | Quality Factory Product
Product Overview
HPMC is a semi-synthetic nonionic cellulose mixed ether that usually appears as a white or white-like powder. It is prepared by chemical modification of natural cellulose.
Good water solubility:
It can be quickly dissolved in cold water to form a transparent viscous solution.
Product Characteristics
Excellent thickening
Significantly improve the viscosity and consistency of the liquid, improve fluidity and stability.
Excellent film formation
When dried, a tough film is formed, which is water resistant, breathable and flexible.
Good biocompatibility
Non-toxic, tasteless, non-irritating, suitable for biomedicine field.
Environmentally degradable
Naturally degradable in the environment, in line with the requirements of green environmental protection.
Product Use
Construction Industry
Used as water retaining agent and retarding agent of cement mortar to improve spreadability and operation time; As an adhesive, it is used to paste decorative materials such as tiles and marbles.
Coating Industry
As a thickener, dispersant and stabilizer, improve the performance of coatings.
Pharmaceutical Field
It can be used as film coating material, sustained release agent, capsule shell material, suspension aid, etc.
Food Industry
Acting as thickener, emulsifier, stabilizer and other roles.
Production Process
Usually cotton, wood as raw materials, through the alkalization, propylene oxide and chloromethane etherification process to prepare.
Market Prospects
With global economic development and environmental awareness, its market demand continues to grow. Applications in green buildings, environmental protection coatings, biomedicine and other fields continue to expand, and the market scale is expected to further expand. But at the same time, the industry is also facing challenges in technological innovation, market competition and environmental protection requirements.
Use Precautions
In the process of use, it is necessary to pay attention to the dissolution method, and choose the appropriate dissolution method according to different models. At the same time, pay attention to storage conditions, should be placed in a dry, clean cool place to ensure product quality and performance.
Characteristics
Moisture retention
Colloidal protection
Suspension
Absorption
Surface activity
Thickening
Dispersion
Emulsification
Film formation
Usage
Building Materials
Petro Chemical
Medicine
Ceramics
Textile
Food
Daily Chemical
Synthetic Resins
Electronics
Technical Indicators
| Model | E | F | J | K |
|---|---|---|---|---|
| Methoxy content /% | 28.0-30.0 | 27.0-30.0 | 16.5-20.0 | 19.0-24.0 |
| Hydroxypropoxy content /% | 7.5-12.0 | 4.0-7.5 | 23.0-32.0 | 4.0-12.0 |
| Dry weight loss rate /% | ≤5.0 | |||
| Viscosity /MPa·S | 100.0 - 80000.0 (annotated value±20%) | |||
| PH(1%25℃) | 5.0-9.0 | |||
| Light transmittance /% | ≥80 | |||
| Gel temperature /℃ | 58.0-64.0 | 62.0-68.0 | 68.0-75.0 | 70.0-90.0 |
Details Pictures
Frequently Asked Questions
What is HPMC and how is it produced?
HPMC (Hydroxypropyl Methylcellulose) is a semi-synthetic, nonionic cellulose mixed ether. It is prepared through the alkalization and etherification process of natural cellulose raw materials, typically cotton or wood, using propylene oxide and chloromethane.
What are the primary applications of HPMC?
HPMC is widely used across multiple industries. In construction, it acts as a water-retaining and retarding agent. In coatings, it functions as a thickener and stabilizer. It is also used in pharmaceuticals for capsule shells and film coatings, and in the food industry as an emulsifier and stabilizer.
How does HPMC behave in water?
HPMC exhibits excellent water solubility. It can be quickly and completely dissolved in cold water, forming a transparent, stable, and viscous solution.
What are the main characteristics of HPMC?
Key characteristics include excellent thickening, superb film formation (tough, water-resistant, and flexible), high biocompatibility (non-toxic, tasteless, non-irritating), and natural environmental degradability.
What precautions should be taken when storing and using HPMC?
During usage, ensure you select the appropriate dissolution method based on the specific model. For storage, HPMC must be kept in a dry, clean, and cool environment to preserve its chemical quality and performance stability.