This section provides an overview for dispersants as well as their applications and principles. Also, please take a look at the list of 12 dispersant manufacturers and their company rankings. Here are the top-ranked dispersant companies as of November, 2024: 1.Shandong Jufu Chemical Technology Co., Ltd., 2.Crucible Chemical Co., 3.Otsuka Chemical Co.,Ltd..
Table of Contents
A dispersant is an agent used to uniformly disperse particles in a medium and maintain a stable dispersion state without re-agglomeration.
Dispersants can be broadly classified into two types: surfactant-type dispersants and polymer-type dispersants. Surfactant-type dispersants consist of hydrophilic and hydrophobic groups and are categorized as anionic, cationic, or nonionic based on the component of the hydrophilic group.
Figure 1. Interaction between the electric double layer and particles
Dispersants achieve dispersion by two mechanisms: electrostatic repulsion and steric hindrance repulsion. These mechanisms prevent particles from agglomerating in a liquid. The balance between electrostatic repulsion and cohesive forces, such as Van der Waals forces, determines whether particles will aggregate or disperse. When Van der Waals forces dominate, particles tend to aggregate and settle.
Particles in a dispersant carry charges and ions with opposite charges surround the particles, forming an electric double layer. Thickening this electric double layer with the help of dispersants increases the repulsive force between particles, preventing agglomeration.
Figure 2. Protective colloidal effect of polymeric dispersants
Polymeric dispersants with large molecular weights adsorb to particle surfaces, creating a protective colloidal layer that hinders particle aggregation. Increasing the number of molecules in this layer leads to a bulkier structure, making it difficult for particles to come into close contact and promoting dispersion stabilization.
When organic solvents are used as dispersing solvents, electrostatic repulsion is weaker than in aqueous systems. Therefore, dispersion via steric hindrance repulsion is employed. When selecting a polymer-based dispersant, both the molecular structure and molecular weight are crucial. Higher molecular weights offer stronger protective colloidal effects, but if the molecular weight exceeds a certain point, the dispersant molecules can absorb two or more particles, leading to increased agglomeration. Thus, selecting an appropriate molecular weight is essential.
Figure 3. Types and characteristics of dispersants
Dispersant types include surfactant-type dispersants, polymer-type dispersants, and inorganic-type dispersants. Among them, surfactant-type dispersants can be further classified as anionic, cationic, or nonionic.
The choice of dispersant depends on the quality of the dispersant, the dispersant medium, and the dispersant concentration. However, when dispersing in water, the following three points are crucial:
Dispersants also serve functions beyond dispersion, such as improving the wettability of base materials. In applications like paints and other coatings, poor wettability can lead to paint flaking. This issue is caused by surface tension, which minimizes contact between the liquid and the coated object. Adding dispersants reduces surface tension, facilitating paint spreading on the coated surface.
*Including some distributors, etc.
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U. S. Polychemical Corporation is a chemical manufacturer founded in 1956 and headquartered in Chestnut Ridge, New York, USA. The company’s flagship product line is the “eco-friendly” ArcaStrip, a biodegradable, non-flammable, semi-aqueous industrial solvent replacement that has applications in composite, automotive, architectural, marine, and aerospace industries. Other notable products they manufacture include FoxBond Acid Wash line and various finishing, buffering, and tarnish removal products for jewelry. The company received letters of recognition from the EPA in both 1999 and 2002 for their innovations in environmentally friendly chemical products.
Otsuka Chemical Co., Ltd., was established in 1950 and is headquartered in Osaka, Japan as a manufacturer of inorganic salts among other products. The company offers an extensive and diversified product portfolio including blended foaming agents, polymerization initiators, potassium titanate filler, advanced rubber additives, aromatic chemicals, and more. These products are integral to various industries including the automotive sector as capacitor electrolysis solutions for electric components, electronic devices as a detergent for semiconductor-related components, residential use as a fire retardant for printed boards, and medical use as synthetic raw materials.
Shandong Jufu Chemical Technology Co., Ltd., based in Shandong, China and has been a manufacturer and supplier of construction chemical products since 2016. The company provides multiple products such as sodium gluconate, lignosulphate, sulfonated melamine, and dispersants. The company's products are used in textile dyes, ceramics, fertilizers, dust control, and concrete. Concrete products are used as water-reducing agents and suppressants in dust control applications. The SGS-certified company specializes in warehousing, product search, quality control, and logistics services.
TLC-KOYA Chemicals Manufacturing Sdn Bhd was founded in 1998 in Ulu Tiram, Johor, Malaysia, as a manufacturer and supplier of industrial and household cleaning and maintenance solutions. The company has seven product segments including care, building construction, lubricating, industrial maintenance, and household. As an ISO 9001: 2008 certified company, its products are valuable for lubricating, hotel, and aerosol applications. It also provides technical support, quality control, and laboratory support services.
Dimacolor Industry Group CO., LTD, established in 2005 and is based in Hangzhou City, China, is a manufacturer and supplier of pigment and dyes. The company's products include water treatment chemicals, oil drilling, pigment, dyes, and paint ink plastic additives. The company's products are also crucial in the inks, coating, textile, and plastic industries, while the pigments and dyes are utilized in coloring different materials. The ISO 9001-certified company has multiple production facilities and distribution networks globally.
Qingdao Fihonor Chemical Science & Technology CO., LTD was established in Shandong Province, China, and is a manufacturer of rubber additives. The company's product portfolio includes tire paint, rubber release agents, protective wax, and textile auxiliaries. Its batch-off release agent is helpful in tube extrusion procedures to minimize dust and prevent uncured rubber tubes from sticking. The products are utilized in various industries, including textile, pharmaceutical, electronics, and agriculture. It also offers personalized services to meet customers' needs.
LG Chem has been a manufacturer and supplier of Chemicals since 1947 having its headquarters in South Korea. The company designs Petrochemical products such as Acrylate which is used in adhesives, and Polymer Catalysts which are used in making Synthetic Rubber. They also make Advanced Materials like Anode Binders which have applications in the manufacturing of batteries and other materials like LUCEL which is an engineering plastic based on POM used to make switches and gears. They also make Reagents for Allergy Tests, Allergens, and Systems to serve the Life Sciences industry.
Ajinomoto Fine-Techno USA Corp., a subsidiary of Ajinomoto Group, headquartered in Cupertino, California, established in 1998, is a chemical manufacturer. The company specializes in electronic packaging solutions with expertise in molecular design, formulation, process development, and solution proposals, serving a broad spectrum of industries, including electronics, automotive, and display industries. The product portfolio features insulation film, magnetic materials, semiconductor encapsulants, adhesives, and encapsulants. The company’s product portfolio encompasses a wide array of applications, spanning molding, photo dielectric, magnetic, and optoelectronics.
Green Agrochem was founded in 2009 and is based in Beijing, China, as a manufacturer and supplier of lignosulfonate products. Its product portfolio comprises lignin, potassium, chrome, magnesium, and liquid lignosulfonate. These products are essential in concrete to harden cement and lead batteries to increase lifespan. The products are also used in industrial management, roads as dust suppressants, and the production of animal feed pellets. They are also used as binders in ceramics, a depressant, extrusion, and emulsifying agent.
Chongqing Acme Tech. CO., LTD, founded in 2004 in Yubei Chongqing, China, is a manufacturer of acetylenic diols additive. The company covers five product segments: dispersants, deformers, surfactants, and new and reach-registered additives. The products are used in adhesives, inks, and coating applications. Its surfactants are wetting agents, while the dispersant is an effective additive for offering dispersion solutions for organic pigments. It is certified under ISO 9001 for quality management and CE for safety, environmental, and health standards.
RX MARINE INTERNATIONAL., founded in Mumbai, India, in 1996 is a manufacturer of chemical products for the marine industry. The company's product portfolio includes anti-corrosion coatings, water treatment solutions, fuel additives and tank coatings and linings that provide robust protection against aggressive cargo and ensure the integrity of cargo containment during maritime transport. Their products are used in industries such as transportation, Pharmaceutical and Biotechnology, Chemical and Petrochemical, Environmental Testing and yachting.
Established in 1995, Crucible Chemical is a manufacturer of specialty chemicals based in the USA. They specialize in producing additives for various industries. Driven by innovation, Crucible Chemical offers a diverse range of specialty chemicals, including lubricity enhancers for the automotive sector, corrosion inhibitors for metalworking, and antiscalants for water treatment. Their solutions address complex industry challenges and optimize processes. Crucible Chemical's strength lies in their deep understanding of industry needs, directing tailored chemical solutions that enhance efficiency and performance. They continue to excel in specialty chemical manufacturing.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Shandong Jufu Chemical Technology Co., Ltd. |
19.7%
|
2 | Crucible Chemical Co. |
11.8%
|
3 | Otsuka Chemical Co.,Ltd. |
11.8%
|
4 | U. S. Polychemical Corporation |
9.2%
|
5 | GREEN AGROCHEM |
7.9%
|
6 | Dimacolor Industry GROUP CO.,LTD |
7.9%
|
7 | CHONGQING ACME TECH. CO., LTD |
7.9%
|
8 | TLC-KOYA Chemicals Manufacturing Sdn Bhd |
6.6%
|
9 | Qingdao Fihonor Chemical Technology Co., Ltd |
6.6%
|
10 | LG Chem |
5.3%
|
Derivation Method
The ranking is calculated based on the click share within the dispersant page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
China | 3 | 42.9% |
United States of America | 1 | 14.3% |
Japan | 1 | 14.3% |
Malaysia | 1 | 14.3% |
Republic of Korea | 1 | 14.3% |