2024 – Page 8 – pigment dispersant

Commonly used dispersants include the following categories

2024年4月10日
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Surfactant. Surfactants are composed of lipophilic and hydrophilic groups and are amphipathic molecules, including long-chain fatty acids, cetyltrimethylammonium bromide (CTAB), etc. The main function of this type of dispersant is the steric hindrance effect. The hydrophilic group is adsorbed on the surface of the powder and the hydrophobic chain extends into the solvent, which has a good effect on improving the rheology of the slurry. CTAB and dioctadecyldimethylammonium chloride (DDAC) can significantly improve the dispersion of bentonite in water.

What role does dispersant play in refractory castables?

2024年4月10日
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The construction performance of refractory castables depends on its thixotropy and fluidity. In order to improve the fluidity of refractory castables, an effective measure is to increase water consumption.

Briefly describe the application of dispersants in various industries

2024年4月9日
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Dispersant is a surfactant that has two opposite properties: lipophilic and hydrophilic in the molecule. It can be used to evenly disperse inorganic and organic solid particles that are difficult to dissolve in liquids. It can also be used to prevent the settling and agglomeration of solid particles. , forming a stable suspension. As a common chemical additive, dispersants have various functions such as dispersion, stabilization, and wetting. They are widely used in coatings, printing inks, medicine, cosmetics, agriculture, textiles, food and other industries.

What is the function of water-based paint dispersants?

2024年4月9日
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The function of the water-based paint dispersant is to disperse the pigments and fillers very finely and evenly in the paint to prevent the occurrence of sedimentation, agglomeration and flocculation. Especially in water-based systems, affected by the viscosity, the pigments and fillers are affected by their own gravity. , is prone to sedimentation, so it is necessary to add a dispersant to improve storage stability.

The function and use of dispersants

2024年4月9日
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Dispersant is a common chemical additive that is widely used in chemicals in various fields and has various functions such as dispersion, stabilization, and wetting. It can disperse solid particles evenly in the liquid and avoid the aggregation and precipitation of particles in the liquid, thus improving the quality and stability of the product. The application range of dispersants is very wide. Let’s take a look at the functions and uses of dispersants.

Eight major functions of dispersants in coatings

2024年4月8日
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Eight major functions of dispersants in coatings A dispersant is a surfactant that has two opposite properties: lipophilic and hydrophilic in the molecule. In coatings, the use of dispersants not only reduces viscosity, but also affects the final performance of …

Industrial chain of titanium dioxide industry

2024年4月8日
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The upstream of the industrial chain of the titanium dioxide industry is raw material suppliers and energy suppliers, the midstream is titanium dioxide manufacturers, and the downstream is the application fields of titanium dioxide.

The best white pigment – titanium dioxide

2024年4月8日
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Titanium dioxide, also known as titanium dioxide, chemical formula TiO2, is an important inorganic chemical pigment in the form of white solid or powder. It is non-toxic, has high whiteness and brightness, and is considered to be the best white pigment to improve the whiteness of materials. It is widely used in coatings, plastics, rubber, paper, ink, ceramics, glass and other industries. Titanium dioxide is closely related to the national economy and is known as the "barometer of economic development." Especially in the field of coatings, the main function of titanium dioxide is to whiten, improve the color and texture of the product, and at the same time, it can also play anti-corrosion, protect the substrate, increase the thickness and service life of the coating, etc.

How to choose dispersant

2024年4月2日
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Dispersant is one of the commonly used surfactants in many industries today, especially in the pigment industry, where the application of dispersants is particularly important. Dispersants can improve the overall gloss of the pigment surface, prevent color floating, reduce viscosity, increase pigment loading, reduce flocculation, increase color development and many other functions.

Types of liquid disperse dye dispersants

2024年4月2日
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Powdered disperse dyes have a higher dispersant content, accounting for about 60% of the total dye, and are mostly anionic; while liquid disperse dyes have a lower dispersant content, accounting for about 20% of the total dye. Available dispersant types There are many, including nonionic, anionic and hyperdispersants. Compared with powdered disperse dyes, the dispersant content of liquid disperse dyes is greatly reduced. Although it brings advantages to printing and dyeing such as increased dye uptake and reduced pollutants in printing and dyeing wastewater, it will also reduce dye grinding efficiency and liquid dye stability. Therefore, choosing the appropriate dispersant is critical for the preparation of liquid disperse dyes.

Yearly Archives: 2024