CAS No.25086-89-9
CTFA/INCI: VP/VA copolymer
Chemical structure: alternating units of PVP and VA
Grade standard: cosmetic grade, pharmaceutical grade, industrial grade
Powder: Yes
Appearance: White or light yellow
Applied in coatings, adhesives, textiles, papermaking and other industrial fields.
Characteristics
- Excellent film-forming property: It can form uniform and transparent films and is widely used in coatings and adhesives.
- Good adhesion: As an adhesive, VP/VA copolymer has excellent adhesion ability and can effectively bond different materials together.
- Strong stability: It has good chemical stability and can still maintain its functions and performance under high temperature or harsh environment.
- Good compatibility: Has good compatibility with many other materials and can be well mixed with solvents such as water and ethanol, so that it can be used in different industrial formulations.
Specification
| PVP/VA | K value | Residual single (%) | Water content (%) | Solid content (%) | PH value (10% aqueous solution) | Solvent system |
| 73W | 28±4 | ≤0.2% | Ca.50% | 50±2% | 4-7 | Aqueous solution |
| 73I | 28±4 | ≤0.2% | ≤0.5% | 50±2% | - | Isopropyl solution |
| 73E | 34±4 | ≤0.2% | ≤0.5% | 50±2% | - | Ethanol solution |
| 64Pdr | 30±4 | ≤0.2% | ≤5.0% | ≥95% | 4-7 | Powder |
| 64W | 30±4 | ≤0.2% | Ca.50% | 50±2% | 4-7 | Aqueous solution |
| 64I | 28±4 | ≤0.2% | ≤0.5% | 50±2% | - | Isopropanol solution |
| 64E | 33±3 | ≤0.2% | ≤0.5% | 50±2% | - | Ethanol solution |
| 55I | 25±3 | ≤0.1% | ≤0.5% | 50±2% | - | Isopropanol solution |
| 55E | 28±4 | ≤0.1% | ≤0.5% | 50±2% | - | Ethanol solution |
| 37I | 25±3 | ≤0.1% | ≤0.5% | 50±2% | - | Isopropanol solution |
| 37E | 30±4 | ≤0.1% | ≤0.5% | 50±2% | - | Ethanol solution |
| 28I | 19±3 | ≤0.1% | ≤0.5% | 50±2% | - | Isopropanol solution |
| 28E | 23±4 | ≤0.1% | ≤0.5% | 50±2% | - | Ethanol solution |
Application
- Coatings and paints: Used as film formers and thickeners, it can increase the adhesion of coatings and the uniformity of coatings, and improve durability.
- Adhesives: In the papermaking, textile and packaging industries, VP/VA copolymers are used as adhesives to effectively bond various materials.
- Textile industry: Used for finishing and processing of textiles, it can enhance the durability and gloss of fabrics.
- Papermaking industry: Used as a surface treatment agent for paper to increase the strength and smoothness of paper.
FAQ
1.How is VP/VA copolymer used in the paper industry?
In the paper industry, it is used for surface treatment of paper to improve the smoothness and strength of paper.
2. Is technical grade VP/VA copolymer miscible with water?
Yes, it has good water solubility and can be miscible with water and other solvents (such as ethanol), suitable for various industrial formulations.
3. Does technical grade VP/VA copolymer have high temperature resistance?
It has good chemical stability and can maintain its performance within a certain temperature range, but performance may deteriorate under extremely high temperature conditions.
4. What is the role of VP/VA copolymer in the textile industry?
It is used for finishing and processing of fabrics to enhance the gloss, softness and durability of fabrics.
5. What are the storage conditions of VP/VA copolymer?
It should be stored in a dry and cool environment, avoiding direct sunlight and high temperature to maintain its stable performance.
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