BES Sodium Salt: A Revolutionary Driver for Waterborne Polyurethane Materials

With the continuous development of materials science, water-based polyurethane materials have gradually become the focus of the industry due to their unique advantages. It is prepared from raw materials such as oligomeric diols, diisocyanates, and small molecule chain extenders through a series of complex processes such as addition polymerization and water dispersion. In this process, BES sodium salt plays an irreplaceable role as a key component. As a hydrophilic chain extender, it endows the polymer material with valuable water solubility, greatly expanding the application boundaries of waterborne polyurethane.

In the synthesis system of waterborne polyurethane, hydrophilic chain extenders are one of the core elements that affect material properties. Their types are diverse, mainly divided into anionic and cationic types, and anionic types are further subdivided into carboxylic acid and sulfonic acid types. BES sodium salt belongs to the sulfonic acid anionic type. These different types of hydrophilic chain extenders, like paintbrushes with distinct styles, outline different characteristics and properties on the canvas of material synthesis.

When using carboxylic acid anionic hydrophilic chain extenders, the synthesized polymer exhibits high viscosity and low solid content in the dispersion. This characteristic will bring many limitations in practical applications. For example, in the preparation process of coatings, high viscosity may increase the difficulty of construction and make it difficult to evenly apply, while low solid content will affect the film-forming effect and protective performance of coatings. In contrast, although AAS salts in sulfonic acid type can ensure high solid content in the dispersion, which is beneficial for improving the efficiency and performance of materials, they also have certain limitations. Due to its high amino activity, only diisocyanates can be used in the dispersion during the synthesis process, which to some extent limits the selection of synthesis processes and further optimization of material properties.

BES sodium salt, as a sulfonic acid anionic hydrophilic chain extender, cleverly balances the above issues. It can ensure that water-based polyurethane materials have good water solubility and dispersibility, while also exhibiting relatively stable properties during the synthesis process, providing convenience for the development of subsequent processes. Thanks to the modification of BES sodium salt, waterborne polyurethane materials have a series of excellent properties. In terms of mechanical performance, it has excellent strength and toughness, and can withstand large external forces without being easily damaged; In terms of cold resistance, even in low temperature environments, it can still maintain good flexibility and performance, without becoming hard or brittle; More importantly, it has the characteristic of non toxicity, which makes it highly favored in many fields with extremely high requirements for environmental protection and health.

At present, this water-based polyurethane material modified with BES sodium salt has been widely used in industries such as leather, fabric, and footwear. As a coating, it can provide long-lasting protection and beautiful decorative effects for leather surfaces; As an adhesive, it can firmly bond fabrics or shoe materials together, ensuring product quality and service life. With the increasingly strict environmental requirements, water-based polyurethane materials are gradually replacing traditional solvent based polyurethane, and BES sodium salt is undoubtedly an important force driving this change. In the future field of materials science, it will play a greater role and lead water-based polyurethane materials to a new stage of development.

As a BES raw material manufacturer, Desheng has advanced production technology and strict quality management system. The BES raw materials produced have high purity and stable quality, which can meet customers' demand for high-quality products. At the same time, Desheng focuses on technological innovation and research and development, continuously optimizing production processes, improving product performance, and reducing costs. If you have any relevant needs, please click on the website to inquire about details and purchase!