Advantages of alcohol-soluble dispersants
Alcohol-soluble dispersants are a type of chemical additive that can effectively disperse solid particles or droplets
in alcohol solvents. They are widely used in many industrial fields such as coatings, inks, pesticides, plastics, ceramics,
etc. Its core advantages are mainly reflected in the following aspects:
1. Solvent compatibility advantages
Highly compatible with alcohol solvents
Alcohol-soluble dispersants are designed for alcohol solvents. They contain alcohol-philic groups (such as hydroxyl
groups and ether bonds) in their molecular structure, which can quickly dissolve and form a stable dispersion system.
For example, in solvents such as ethanol and isopropanol, dispersants can significantly reduce the surface tension of
pigments or fillers and avoid agglomeration.
Low VOC emissions
Alcohol solvents themselves have low volatility. When combined with alcohol-soluble dispersants, they can reduce volatile
organic compound (VOC) emissions and meet environmental regulations.
2. Dispersion efficiency and stability
High-efficiency dispersibility
Dispersants disperse pigments, fillers and other particles evenly through steric hindrance or electrostatic repulsion
mechanisms to avoid sedimentation or stratification.
For example, in coatings, they can improve the coloring power of pigments, reduce flocculation, and make the coating more
uniform.
Long-term stability
The dispersion system formed by alcohol-soluble dispersants has strong stability and can maintain stable performance under
high temperature, high humidity or long-term storage conditions.
Suitable for products that need to be stored or transported for a long time (such as pesticide suspensions).
3. Process adaptability
Advantages of low-temperature processing
Alcohol solvents have a low boiling point, and the dispersion process can be carried out at a lower temperature, reducing energy
consumption and avoiding high temperature damage to active ingredients (such as pesticides and pigments).
For example, in pesticide formulations, the heat sensitivity of active ingredients can be protected.
Rapid drying
Alcohol solvents evaporate quickly, and combined with dispersants can accelerate the drying process of products such as coatings
and inks, thereby improving production efficiency.
4. Versatility and cost-effectiveness
Multifunctional additives
Alcohol-soluble dispersants often have the functions of wetting, anti-settling, and thickening, which reduces the types of additives in
the formula and simplifies the process flow.
For example, in plastic processing, filler dispersibility and resin compatibility can be improved at the same time.
Cost optimization
Alcohol solvents are relatively cheap, and the amount of dispersant used is small, which can reduce the overall formulation cost.
For example, in ceramic slurry, dispersants can increase the solid content and reduce the amount of solvent.
5. Application field expansion
Emerging field application
Applicable to electronic paste, 3D printing materials and other fields with high requirements for solvent compatibility.
For example, in conductive silver paste, it can improve the dispersibility of silver powder and reduce resistivity.
Special environmental adaptability
Alcohol-soluble dispersants can still maintain excellent performance in low temperature or high humidity environments, meeting the
application requirements under extreme conditions.
6. Safety and compliance
Low toxicity and biodegradability
Alcohol solvents and most alcohol-soluble dispersants have low toxicity and meet the safety standards for food contact materials or
children's products.
For example, it can be used safely in food packaging coatings.
Regulatory compliance
Complies with international regulations such as EU REACH and US FDA, facilitating product export and market access.
7. Technical data and case support
Improved dispersion efficiency: Experimental data show that alcohol-soluble dispersants can make the pigment particle size distribution
narrower and improve dispersion stability by more than 30%.
Cost reduction: In pesticide formulations, the amount of dispersant is reduced by 20%, while the utilization rate of active ingredients is
increased by 15%.
Summary
Alcohol-soluble dispersants have become indispensable additives in modern industry due to their solvent compatibility, efficient dispersibility,
process adaptability and versatility. Their low VOC emissions, low-temperature processing and fast drying characteristics not only meet the
trend of environmental protection and energy saving, but also significantly improve product quality and production efficiency. With the
development of emerging fields, the application prospects of alcohol-soluble dispersants will be broader.
