Sulphonated Melamine Formaldehyde (SMF)

Sulphonated melamine formaldehyde (SMF) is a water-soluble anionic high-polymer dielectric. It has extremely strong adsorption and dispersion effects on cement. And SMF is one of the existing concrete water-reducing agents with good comprehensive indicators. The main characteristics of SMF superplasticizer: white powder, non-toxic, non-irritating, non-flammable, high water-reducing rate, non-air entraining, low chloride ion content, non-rusting steel bars, and suitable for various cements.

  • Product: Sulphonated melamine formaldehyde
  • Appearance: White Powder
  • Sodium sulfate content (%) ≤: 3.0~4.0
  • Chloride Content (%): 0.3~0.4
  • PH Value: 7~9
  • CAS No.:  9003-08-1

As one of the most important concrete admixtures, melamine based superplasticizer plays an important role in improving concrete properties, increasing construction efficiency and reducing costs. With the development of the construction industry, the demand for concrete continues to increase, and the performance requirements for concrete are also constantly improving. Therefore, the application of sulphonated melamine formaldehyde superplasticizer has attracted more and more attention.

Applications of Sulphonated Melamine Formaldehyde (SMF)

  1. Construction engineering. Melamine superplasticizer can be used to improve the concrete properties of buildings, such as high-strength concrete, pumped concrete, colored concrete and decorative products. In addition, it is also widely used in the construction of self-leveling floors, non-metallic wear-resistant floors, waterproof mortars, repair mortars, etc.
  2. Refractory materials. In the production process of refractory materials, melamine based superplasticizer
    can significantly improve the compressive and flexural strength of the material, reduce moisture porosity, increase density, and extend the service life of refractory materials.
  3. Mortar and coating. SMF powder can be used to produce high-strength mortar, repair mortar, etc., and as a brightener to produce colored floor tiles and prefabricated components.
Visual AppearanceWhite Powder
Sodium sulfate content (%) ≤3.0~4.0
Water reduction rate (%)20-30
Chloride Content (%)0.3~0.4
pH Value7~9
Moisture(%) <4
Cement Paste Flow, (mm) ≥220
SolubilityCompletely soluble
  • Efficient water reduction. Adding melamine based superplasticizer can significantly reduce the water consumption of concrete and improve the strength and durability of concrete. At the same time, the production costs of coatings and papers can be reduced, and their quality and performance can be improved.
  • Strong adaptability. High-efficiency sulphonated melamine formaldehyde has good adaptability in different types of concrete, coatings and papers, and can meet the needs of different fields and products.
  • The mixing amount is small. Since the melamine based superplasticizer has a high water-reducing rate, in practical applications, a small amount can be added to achieve the desired water-reducing effect.
  • Good stability. SMF sulphonated melamine formaldehyde powder has good stability during storage and use, has little impact on environmental factors such as temperature and humidity, and can be stored and used for a long time.
  • Good compatibility. This product has good compatibility with other water reducing admixtures (such as naphthalene based superplasticizer, polycarboxylic acid superplasticizer, aliphatic superplasticizer, sulfamate water reducing agent)and can be used Used to adjust the comprehensive performance of other water reducing agents.
  • Environmental friendly. The raw materials used in the synthesis process of melamine superplasticizer are all environmentally friendly raw materials and have little impact on the environment and human health. In addition, the SMF superplasticizer can produce less waste during production and use, which is beneficial to environmental protection.

Melamine based superplasticizer is a concrete admixture containing melamine groups. Its molecular structure contains active groups such as amino, carbonyl and hydroxyl groups. These groups can react with calcium ions, silicon ions, etc. in cement to form anchoring complexes, thereby enhancing the dispersion and flow of concrete. sex. In addition, the crystal structure of sulphonated melamine formaldehyde superplasticizer also has special properties. Its crystal surface has a high negative charge density, which can generate electrostatic attraction with the surface of positively charged sand and gravel, further improving the dispersion and fluidity of concrete.

The main raw materials for preparing sulphonated melamine formaldehyde superplasticizer include melamine,formaldehyde, sulfonate, etc. During the preparation process, melamine and formaldehyde are first subjected to a condensation reaction under acidic conditions to generate a pre-condensate. The precondensate and sulfonate are then subjected to a sulfonation reaction under alkaline conditions to finally generate a melamine superplasticizer. Among them, the reaction mechanism involves multiple steps such as the condensation of amino groups and formaldehyde and the reaction of sulfonate groups and amino groups. Key parameters in the preparation process include temperature, pH value, reaction time, etc., which need to be strictly controlled to obtain high-quality products.

Melamine Superplasticizer Manufacturer & Supplier

Kingsun has been committed to the R&D, production and sales of various construction chemicals with more than 15 years of experience. We have our own factories, warehouses, advanced production lines, and professional sales teams. Our main products include SMF superplasticizer, PCE superplasticizer and SNF superplasticizer, sodium gluconate, sodium lignosulfonate, calcium lignosulfonate, etc.

We can guarantee to provide customers with high-quality products, competitive factory prices, and excellent services.

Kingsun products have been exported to more than 30 countries and regions, including Mexico, Bahrain, Peru, Saudi Arabia, United Arab Emirates, Qatar, Sri Lanka, Oman, South Africa, Colombia, Turkey, Vietnam, Malaysia, Singapore, Thailand, Uzbekistan, Russia, and India.

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