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dispersant

What is the difference between a wetting agent and a dispersant?

Wet dispersants can shorten the dispersion and grinding time of pigments and fillers during the coating production process, and keep the pigments and fillers in the coating in a stable dispersion state for a long time. They can even play a decisive role in certain properties of the coating.
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black

Difficulties in dispersing organic/carbon black pigments

In the application of organic/carbon black pigments, unstable color intensity, poor carbon blackness and color, uneven pigment distribution and even clogging of the filter screen often occur. These problems are actually caused by poor dispersion.
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black

Carbon black dispersion problem in rubber products

The problem of carbon black dispersion in rubber products means that the carbon black added during rubber mixing is unevenly dispersed in the rubber, resulting in a decrease in the performance of the rubber products.
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dispersants

Effect of dispersants on coatings

●Glossiness: If the gloss of the paint is to be high, the particles contained in it should not be larger than 5 microns, and the ink should not even be larger than 1 micron. Polymer dispersants can reduce the large particles formed in the paint and help the paint improve its gloss.
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dispersant

What is “ashless dispersant”?

When the internal combustion engine is working, the engine oil is subjected to high temperature and high pressure. It comes into contact with oxygen and various metals to undergo oxidative condensation and decomposition, forming a series of substances that will be deposited and attached to the engine parts in the form of carbon deposits, paint films and sludge, making the engine work
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dispersant

The principle of dispersant

The dispersant has two functions: one is to speed up the depolymerization of "agglomerates" and shorten the dispersion time; the other is to delay the time for particles to reunite again and keep the particles in a dispersed state for a long time.
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dispersants

Dispersant Selection Factors

Coating systems: Different types of coating systems (such as water-based or solvent-based coatings) have specific requirements for the amount and type of dispersant. Pigments: Different colors and types of pigments may require specific dispersants for optimal dispersion. Some pigments have a higher settling rate or tendency to aggregate, while other colors disperse more easily.
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Dispersant

Dispersant evaluation, selection and addition amount

The selection of dispersants should be based on the characteristics of the pigments to be dispersed and the performance requirements of the coating. Dispersants have a great influence on the particle size distribution, tinting strength, stability, gloss and defects of pigments. The dispersing ability of dispersants is mainly evaluated from the following aspects: viscosity reduction and viscosity stability, particle size distribution of pigment slurry, Tinting strength, color development, hue, covering rate, flocculation, gloss, surface defects, bubbling effects, compatibility with resins and additives, storage stability, etc.
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dispersion

Factors affecting dispersion

The influence of molecular structure, molecular weight and distribution of dispersant Dispersants are composed of hydrophobic and hydrophilic groups.
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