Hydroxyl Acrylic Resin

Application:

This resin is used as a hydroxyl agent in combination with isocyanate to produce polyurethane.


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Product Introduction:

Polyurethanes are one of the most important industrial coatings, ranging from relatively simple glaze-like coatings to high-quality automobile coatings. These coatings are usually the result of the reaction of an alcohol (R-OH) and an isocyanate (R-NCO), and the most common type of urethane coating is a solvent-based and two-part coating, where one component contains polyisocyanate and the other polyol. The most common types of polyol are acrylic polyol, polyester polyol and polyether polyols. Owing to their linear structure, acrylic polyol polyurethane resins have high light resistance, good moisture resistance, and excellent hardness, and are widely used in protective coatings. This product is acrylic polyol resins with a hydroxyl number of 4.5, which is produced by using acrylate monomers and during the process of radical chain polymerization.

Technical Specifications:

Acrylic resin is a resin composed of acrylic acid derivatives (CH2 = CH – OOH). The molecular weight of acrylic resins used in urethane coatings is usually low (example: 25000 daltons) and the molecular weight of the final cross-linking film is quite high (example: infinity). The low molecular weight of acrylic resin makes it possible to make a coating with a high solid percentage and medium to low viscosity. Acrylic polyols, like most acrylic resins, are prepared by radical polymerization. Any acrylate monomer containing hydroxyl groups such as hydroxyethyl methacrylate, hydroxybutyl acrylate and hydroxyethyl acrylate can exist in the polymer structure. Although only hydroxylated monomers are not used in the polymer structure, methyl methacrylate, methyl acrylate, butyl methacrylate, butyl acrylate, acrylic acid, methacrylate acid and styrene monomer are used along with peroxide initiator, depending on the application. The polymer chain structure is formed based on the concentration of monomers and the reactivity of each one at the moment of chain formation.

Advantages:

Proper quality

International Standards or Permission:

ISO-9001-2015

Company

Type

This product is a final B2B customer product.

SKU: 13026 Category: 
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