It is well known that the main drawback of self crosslinking acrylic waterborne paint is poor construction performance. Because of the different construction conditions, technology and quality, the quality of paint film will be quite different, and orange peel, crack, gloss and shading will not be uniform, adhesion and wear resistance will be poor.
The reason why waterborne paint is poor in construction is mainly due to the performance of self crosslinking acrylic emulsion. Due to the poor levelness and compactness of emulsion, the paint film causes less oil film. How to modify the self crosslinking acrylic emulsion. Alkyd resin has excellent fluidity and leveling, good gloss and toughness and good wear resistance. The self crosslinking acrylic emulsion modified by alkyd resin will fundamentally solve the drawback of poor quality of paint film caused by poor construction performance of self crosslinking waterborne paint.
The alkyd resin is divided into dry, semi dry and non dry three kinds according to the number of double bonds. According to the content of fatty alcohol or oil in the resin, the content of the resin is divided into 30~40% short, and in 40~60%, three kinds of 60~70% oil are long. According to the characteristics of short, medium and long oil, it is self dry and non dry. The finished products are also painted by different methods. They are divided into spray, brush, scrape, shower and bath. The drying methods also include drying, drying and crosslinking.
Then it is an effective way to modify the self crosslinking acrylic emulsion by using the properties of alkyd resin.
Acrylic acid and ester prepared alkyd resin and emulsion in raw materials, styrene copolymerized silicone in the system with alkyd resin by chemical bond interaction, in the polymerization process by adjusting the type and amount of alkyd resin, adjust the variety and dosage of emulsifier and initiator, increase the reaction temperature, good performance can vary slightly by Alkyd Modified self crosslinking acrylic emulsion.
It is divided into sublight,and soft medium with different hardness. According to the different kinds of paints produced by different alkyd resins, they will also be divided into different construction processes, such as brushing, spraying, spraying and self flowing, so as to meet different decorative requirements. By modifying the self crosslinking acrylic emulsion by alkyd resin, it overcomes the defect of paint film due to construction problems due to the construction problems of self crosslinking acrylic waterborne paint, and provides a direction for the industrial popularization of waterborne paint, and for solving environmental problems and safety problems.