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Monthly Archives: April

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grinding

What are the functions of pigment wetting and dispersing agents when grinding slurry?
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The main function of the wetting agent is not to be used in the pigment grinding process. Its main function is to reduce the surface tension of the pigment system, so that the pigment can achieve good adhesion and leveling properties during the coating process on the substrate. Therefore, There is a certain difference between wetting agents and wetting and dispersing agents.
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titanium

Identify real and fake titanium dioxide
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Titanium dioxide, whose scientific name is titanium dioxide (TiO2), is an important inorganic chemical white pigment whose main component is titanium dioxide. Titanium dioxide has a wide range of uses and is widely used in coatings, plastics, paper, rubber, inks, chemical fibers, ceramics, daily chemicals, medicine, food and other industries. The titanium dioxide market is full of fakes and shoddy products.
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dispersant

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