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HPMC Hydroxypropyl Methyl Cellulose Suppliers and Factory in China - Odorless, Non-Toxic Colloidal Powder
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
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Thickening: Significantly improve liquid viscosity, consistency, fluidity, and stability.
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Film formation: Forms a tough, water-resistant, breathable, and flexible film when dried.
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Biocompatibility: Non-toxic, tasteless, and non-irritating; ideal for biomedicine.
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Degradable: Naturally degradable in the environment, meeting green protection requirements.
Product use
Construction: Water retaining/retarding agent for cement mortar; adhesive for tiles and marbles.
Coating: Functions as a thickener, dispersant, and stabilizer to improve coating performance.
Pharmaceutical: Used as film coating material, sustained release agent, capsule shell, etc.
Food Industry: Performs roles as a thickener, emulsifier, and stabilizer.
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 |
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Frequently Asked Questions (FAQ)
What is HPMC and how is it prepared?
HPMC (Hydroxypropyl Methylcellulose) is a semi-synthetic nonionic cellulose mixed ether. It usually appears as a white or white-like powder and is prepared by the chemical modification (alkalization and etherification using propylene oxide and chloromethane) of natural cellulose, typically sourced from cotton or wood.
What are the primary characteristics of HPMC?
HPMC features excellent thickening properties, outstanding film formation, good biocompatibility (non-toxic, tasteless, and non-irritating), and environmental degradability. It also dissolves quickly in cold water to form a transparent viscous solution.
In which industries is HPMC widely applied?
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).
What precautions should be taken when using and storing HPMC?
It is important to select the appropriate dissolution method based on the specific HPMC model. For storage, HPMC should be kept in a dry, clean, and cool place to protect its quality and performance.
How does the gel temperature vary among different HPMC models?
The gel temperature varies depending on the specific technical model: Model E ranges from 58.0-64.0℃, Model F from 62.0-68.0℃, Model J from 68.0-75.0℃, and Model K from 70.0-90.0℃.