Matting agent is a chemical additive that is mainly used to reduce the gloss of the surface of the material and improve the protection and aesthetics of the product.
Definition and classification
Matting agent is a polyacrylate resin with epoxy group, mainly used as a matting resin for outdoor powder coating, with good matting effect, and can obtain 1-60% arbitrary luster, especially suitable for 1-30% of outdoor pure polyester powder chemical products. Based on their source and characteristics, matting agents can be divided into the following categories:
Inorganic matting agent: mainly composed of silica, zirconia and other powder substances, has high durability and chemical resistance, but has a greater impact on the transparency and leveling of the product.
Organic matting agent: mainly composed of organic polymers such as polyester amide, with good transparency and chemical resistance, but low weather resistance and wear resistance.
The mechanism of action
The action mechanism of the matting agent is mainly to reduce the gloss of the surface of the material by scattering light. The matting agent is dispersed in the paint with very fine suspended matter, which is distributed on the surface of the paint film when the film is formed, which reduces the specular reflectance of the surface light of the paint film and forms a rough surface to achieve the matting effect.
The main application
Matting agent is widely used in coating, ink, plastic, textile, rubber, ceramics and other fields, with different functions and characteristics. For example, in coatings, matting agents can make the surface of the coating form a microstructure, forming light scattering, to reduce gloss, improve the effect of covering power and ductility. In plastic products, matting agents can play the role of anti-ultraviolet, anti-aging, anti-static and so on.
Choose the method
Selecting the right matting agent requires consideration of a number of factors, including dry film properties (such as transparency, film smoothness, scratch resistance and weather resistance), application characteristics (such as viscosity, resistance to settling, degree of redispersion and consistency of gloss, etc.), and resistance to excessive grinding and dispersion during processing. In the selection, it is necessary to select the appropriate matting agent according to the specific application requirements and product performance requirements.
Precautions
When using matting agent, it is necessary to pay attention to control its addition amount and mixing ratio to avoid affecting the performance and quality of the product. In addition, it is also necessary to pay attention to the compatibility and stability of the matting agent and other additives to ensure the stability and reliability of the product.
In short, matting agent is an important chemical additive, which has a wide range of application prospects in coatings, inks, plastics and other fields. Selecting the right matting agent and using it correctly can effectively improve the performance and quality of the product.
The key characteristics:
Efficient alternative:
These matting additives can effectively replace traditional matting materials such as diatomaceous earth and fumed silicon dioxide, and provide new solutions for coating manufacturing.
Improve paint performance:
Improved feel: The use of these matting AIDS can significantly improve the feel and use experience of the paint.
Cost reduction: Due to their substitution effect, production costs can be reduced without sacrificing performance.
Anti-settling effect: It has good anti-settling performance to ensure that the paint remains stable during storage and use.
Environmental protection:
These matting additives have environmental protection characteristics, do not add harmful substances such as APEO and formaldehyde, and meet the environmental protection requirements of modern coating manufacturing.
In summary, highly efficient and environmentally friendly polymer acrylic polymer matting additives show excellent performance in water-based coatings, especially suitable for the application of matte finish varnish in architectural coatings.
Usage method
1, DA-60, due to its high viscosity, can be added while stirring when the coating is dispersed in the early stage, dispersed at high speed for 5 minutes, or added in the later stage, diluted with water according to 1:20 ratio column, and added while stirring.
2, the dosage should be adjusted according to the gloss used in the final product, the recommended dosage is 0.1-0.5% of the quality of the formula (measured in the form of supply), and the exact amount should be determined by pre-experiment before painting.
