Waterborne epoxy-acrylic anti-corrosion coatings are versatile, environmentally friendly and high-performance coatings that are widely used in different fields. This article will introduce in detail the prepative method of this Coating and its outstanding performance in cans, household appliances, instruments and other Applications.
Preparative method
The prepative process of waterborne epoxy-acrylic anti-corrosion coatings involves the following key steps:
Synthesis of epoxy-acrylic resin
First, the epoxy resin is grafted with an acrylic monomer or acrylic polymer to produce an epoxy-acrylic resin rich in acid groups. Resin is then neutralized with ammonia to form the corresponding salt.
Preparative emulsion
A certain amount of epoxy resin, ethylene glycol monobutyl ether and n-butanol mixed solvent was added to the reaction vessel and stirred under the condition of heating to 110 ℃. The mixed solution of methacrylic acid, styrene, butyl acrylate and benzoyl peroxide (BPO) was slowly added dropwise within 3 hours, and then heated to 120 ℃ for 4 hours. Subsequently, the temperature was lowered to 85 ℃, and the mixed solution of N, N-dimethylaminoethanol and distillation water was continued. The reaction was stirred at high speed and kept warm at 50 ℃ for 3 hours, and finally an epoxy-acrylic resin water emulsion was obtained.
Coating preparations
Mix the epoxy-acrylic resin water emulsion with the Miscellaneous raw material, then mix and grind through a sand mill until the desired fineness is achieved. Finally, add the epoxy-acrylic resin water emulsion to the mixture and mix thoroughly.
Application
Waterborne epoxy-acrylic anti-corrosion coatings are known for their excellent performance and versatility, and the following are its main applications in different fields:
Can Inner Wall Coating
Coating is widely used in canning production because of its excellent adhesion and ability to protect the inner walls of food cans from corrosion and contamination.
Household appliances
Waterborne epoxy-acrylic anti-corrosion coatings are widely used in the home appliance industry and can be used for surface protection of refrigerators, washing machines and other equipment, with excellent impact resistance and abrasion resistance.
Instrument
Coatings are also commonly used in surface painting of various instruments and equipment, providing high strength, chemical resistance, corrosion resistance and good Appearance.
Waterborne epoxy-acrylic anti-corrosion coatings have become a jewel in the Coatings market through careful prepative methods and the superior performance of multiple Applications. Its excellent adhesion, impact resistance, abrasion resistance, weathering resistance, corrosion resistance and environmental adaptability make it widely favored in many industries. In the future, with the continuous pursuit of Coating performance and sustainability, waterborne epoxy-acrylic anti-corrosion coatings will continue to provide high-performance protection and beautification solutions for various applications.
