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HPMC Hydroxypropyl Methyl Cellulose – Odorless Powder from China Suppliers and Factory for High-Quality Applications
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 (FAQ)
What is HPMC and how is it prepared?
HPMC (Hydroxypropyl Methylcellulose) is a semi-synthetic nonionic cellulose mixed ether. It is prepared by chemical modification of natural cellulose (usually using cotton or wood as raw materials) through alkalization, propylene oxide, and chloromethane etherification processes.
What are the primary characteristics of HPMC?
HPMC features excellent thickening properties, strong film-forming capabilities, good biocompatibility (non-toxic, tasteless, non-irritating), and good water solubility in cold water. It is also naturally degradable in the environment.
Which industries use HPMC?
HPMC is widely used in the construction industry (as a water retaining and retarding agent), the coating industry (as a thickener and stabilizer), the pharmaceutical field (for film coatings, capsule shells, and sustained-release agents), and the food industry (as an emulsifier and stabilizer).
How should HPMC be stored and handled?
HPMC should be stored in a dry, clean, and cool place to maintain its quality and performance. During use, it is important to select the appropriate dissolution method based on the specific model of HPMC.
What are the main technical indicators for HPMC models?
Key technical indicators include Methoxy content, Hydroxypropoxy content, Dry weight loss rate (≤5.0%), Viscosity range (100.0 - 80000.0 MPa·s), pH value (5.0-9.0), Light transmittance (≥80%), and Gel temperature (ranging from 58.0°C to 90.0°C depending on the model).