Hydroxypropyl methylcellulose (HPMC) is a semi-synthetic polymer derived from natural cellulose. It has a wide range of applications, especially in the fields of construction, pharmaceuticals, food, cosmetics and inks. HPMC is a white or off-white powder that is easily soluble in water and some organic solvents to form a transparent viscous solution.
HPMC is the abbreviation of hydroxypropyl methylcellulose. This product uses highly pure cotton cellulose as raw material and is made by special etherification under alkaline conditions. The whole process is completed under GMP conditions and automatic monitoring. It does not contain any active ingredients such as animal organs and oils. Physical properties: This product is a non-ionic cellulose ether, with the appearance of white powder, odorless and tasteless, soluble in water and most polar organic solvents (such as dichloroethane) and appropriate proportions of ethanol/water, propanol/water, etc..
The main features and properties of HPMC include
- Excellent water retention: HPMC is a highly efficient water retention agent that can effectively control the moisture in the material and prevent rapid drying, thereby improving construction performance and durability. Good thickening and bonding properties: HPMC has thickening and bonding effects, which can improve the bonding strength and durability of building materials and improve construction performance.
- Film-forming property: HPMC has good film-forming properties and can form a thin film to improve the waterproofness and crack resistance of the material.
- Enzyme resistance: HPMC has good enzyme resistance and can resist enzyme degradation to a certain extent, extending the service life of the material.
- PH stability: The viscosity of the HPMC aqueous solution remains stable within a certain pH range (usually 3.0-11.0), which makes HPMC suitable for a variety of different application environments.
- Thermogel properties: HPMC has thermogel properties. The aqueous solution will form a gel when heated and dissolve again after cooling. This property has special applications in the food and pharmaceutical fields.
|
Item |
Specification |
Test Standard |
|
Appearance |
White or off-white powder |
Visual Inspection |
|
Moisture Content |
≤5% |
GB/T 2910 |
|
Ash Content |
≤1.5% |
GB/T 11901 |
|
Gelation Temperature (2% solution) |
60-90℃ |
ISO 535 |
|
Solubility |
Cold water soluble, forms transparent colloid |
ASTM D1347 |
Package
High-end cigarettes: Used for manufacturing low-tar
Packaging:
20kg per bag (inner lining with PE film, outer layer with kraft paper bag).
25kg per bag or ton bag packaging is also available.
Storage
Store in a cool and dry place, avoiding moisture absorption (humidity ≤60%). Shelf life: 12 months.
The main application areas of HPMC
- Construction industry: As a thickener, water-retaining agent, adhesive and film-forming agent for mortar, putty, paint and other construction materials, it can improve the construction performance and durability of the materials.
- Pharmaceutical industry: As a binder and disintegrant for tablets, and a film-forming material for capsules.
- Food industry: As a thickener, stabilizer and film-forming agent, it improves the texture, taste and shelf life of food.
- Cosmetics industry: As a thickener, emulsifier and stabilizer, it improves the texture and stability of products.
- Ink printing industry: As a thickener, dispersant and stabilizer, it improves the performance of ink.
- Other fields: It is also widely used in ceramics, textiles, papermaking and other industrie
- In conclusion, HPMC is a versatile additive with broad application prospects.