Chemical Structure and Properties
Chemical Structure: Acrylic Homopolymer is a high-molecular polymer formed by the polymerization of acrylic acid monomers. The molecular chain is mainly composed of repeating acrylic acid units, with a general structural formula of [-CH₂-CH(COOH)-]ₙ, where n represents the degree of polymerization, determining the molecular weight and properties of the polymer.
Physical Properties: Typically a colorless to light yellow transparent liquid, and some appear as white powder or granular. It has good solubility, dissolving in water to form a uniform solution, and can also dissolve in polar organic solvents such as ethanol and acetone. Additionally, its viscosity increases with the increase of molecular weight and concentration.
Chemical Properties: The molecular chain contains carboxyl groups (-COOH), giving it certain acidity, which can undergo neutralization reaction with alkalis to form corresponding salts. Meanwhile, carboxyl groups can participate in chemical reactions such as esterification and amidation, modifying the polymer or crosslinking with other substances to improve performance and meet different application requirements. It also has good thermal stability and oxidation resistance, maintaining structural and performance stability within a certain temperature range and oxidative environment.
Application Fields
Water Treatment: As a scale inhibitor and dispersant, it can inhibit the crystallization and precipitation of insoluble salts such as calcium carbonate, calcium sulfate, and barium sulfate, preventing scale formation on pipes and equipment surfaces. It is widely used in industrial circulating cooling water systems, boiler water systems, reverse osmosis water treatment systems, etc., to improve heat transfer efficiency and service life of equipment.
Textile and Dyeing Industry: Used as a textile sizing agent to enhance the adhesion of sizing to fibers, making yarn smoother during weaving and reducing breakage; as a dyeing auxiliary to improve the dispersibility and permeability of dyes, enhancing dyeing uniformity and color fastness, and also playing a role in anti-staining and color fixing.
Coatings and Adhesives: Applied in manufacturing acrylic resin coatings, which feature good weather resistance, water resistance, chemical corrosion resistance, and decorative properties, widely used in architectural coatings, automotive coatings, wood coatings, etc. In adhesives, it can improve adhesion strength, water resistance, and aging resistance for bonding materials like paper, wood, leather, and plastics.
Paper Industry: As a paper strength enhancer, it improves the strength and stiffness of paper; as a paper sizing agent, it enhances water resistance and printing adaptability; and as a pigment dispersant, it ensures uniform dispersion of pigments in paper, improving gloss and whiteness.
Main Manufacturers
Kairui Chemical: Its produced kr-1000 acrylic homopolymer is a low-molecular-weight polyacrylic acid with a molecular weight of about 2000, effectively inhibiting the precipitation of low-solubility salts such as calcium carbonate, calcium oxalate, calcium sulfate, and barium sulfate. Contact InformationContact Information :
TEL: +86-632-3671188
FAX: +86-632-3671189
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China