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Water - based coating formulation design system - matting agent Matting agents are additives used to control the gloss of waterborne wood coatings to meet the broad needs of mainstream matt paints in today's market.The extinction mechanism of the matting agent can be arranged in an orderly manner on the surface of the coating film, so that the surface of the coating film is uneven, causing the lig...
The steel is subjected to different degrees of corrosion conditions in different operating environments. According to the corrosion conditions, the environmental conditions used by the steel are divided into four grades: Steel use environment and corrosion conditions Steel use environment and corrosion conditions Definition Performance Requirements Coating Effect Harsh conditions Products used in ...
Plastics are classified into two types: thermosetting and thermoplastic.Among them, thermosetting plastics have high cross-linking density, good solvent resistance and heat resistance, relatively high surface polarity, and wide range of coatings available.For example, unsaturated polyester is called polyester fiberglass. The texture is hard and polar, and there are many coatings that can be used. ...
Adhesion type and adhesion property of paint film on substrate The adhesion of the paint film to the substrate is divided into two types: mechanical adhesion and chemical attachment.Mechanical adhesion depends on the properties of the coated sheet (roughness, porosity) and the strength of the formed film; chemical adhesion refers to the mutual attraction of the paint film molecules and the plate m...
From the viewpoints of molecular structure, molecular polarity and molecular interaction force, the adhesion of the paint film results from the polar group orientation of the polymer molecules in the coating, and its polar group with the polar molecules on the surface of the coated object. The mutual attraction between each other.Only when the polar phase of the two is adapted to obtain a good adh...
Cohesion and thermal expansion coefficient of paint film The force caused by the cohesion of molecules of the same substance is called cohesion.The more cohesive the coating, the worse the adhesion.In the drying process of paint, with the increase of solvent volatilization and crosslinking degree, the cohesion between film forming material molecules increases, the film produces shrinkage phenomeno...
Sinograce Chemical - Jingangtai rafting trip On August 17th, Sinograce Chemical Marketing Center carried out the second quarter group building activities of the Rapids Warriors, blue sky and white clouds, green mountains and green waters, riding a rubber boat, leaping in the cool water, Sometimes light as a swallow, Now and then it gallops like a tiger, the event The thrills not only make the...
Water - based acrylic emulsion formulation needs to be considered: water - based acrylic resin composition The choice of emulsion raw materials is the most important decision for engineers when formulating aqueous paint formulations.The main properties of the coating are determined by the resin.A wide variety of water-based acrylate emulsions, including polystyrene-acrylate emulsions, are on the m...
How to deal with the surface of water-based anti-rust paint before painting As the saying goes, "seven-point paint three-point paint." The correct handling of the substrate can have a major impact on the performance of the coating. Waterborne anti-corrosive paint is no exception. During the processing, transportation and storage of the workpiece, the surface often has the moldi...
In recent years, with the increasing awareness of environmental protection and the importance and legislation of governments in environmental protection, more and more anti-rust paints are turning to water-based.Many foreign customers have begun to demand waterborne anti-corrosive paints for domestic suppliers. After sinograce chemical successfully launched our water-based anti-corrosive paint|wat...
What parameters of resin determine coating gloss? Question: What parameters of the resin determine the gloss of the film? Some people say that it is solid content, some people say it is OH value. So, what is the most important determinant of gloss? Answer: There are many parameters that determine the gloss of the paint film. The saturation of the resin: that is, its monomer structure, this index d...
The third step in the treatment of water-based paint coated substrates is sealing. The role of the water-based putty is to make the surface of the substrate such as wood not very regular and smooth and minor defects and defects, such as pores, fine cracks, pits, joints and concrete, to reduce the surface roughness and increase the flatness.The requirements for water-based putty are good adhesion a...
Water based polyurethane resin refers to a binary colloidal system in which a polyurethane resin is dissolved or dispersed in water.Water-based polyurethane resin has the advantages of easy to use, stable performance, strong adhesion, excellent gloss, good heat resistance, etc. It can be suitable for various printing methods, especially suitable for screen printing, plastic packaging and composite...
Current problems with waterborne polyurethane adhesives: (1) Low solid content: At present, the solid content of water-based polyurethane (WPU) can reach 45%. Fewer systems lead to higher drying and transportation costs. Increasing the solid content leads to an increase in the viscosity of the system, which makes emulsification and dispersion difficult. Reduced emulsion stability. (2) Slow drying ...
Development trend of waterborne polyurethane: Nowadays, with the stricter requirements of environmental protection policies, the environmental protection requirements for the performance of adhesives will become higher and higher. Therefore, the greening and environmental protection of composite materials will be more and more important. There will be even more urgency.Therefore, the points mentio...
sinograce chemical
Sinograce Chemical is professional technical enterprise providing solutions of surface materials and manufacturing of raw materials. Sinograce Chemical Company is composed of R&D center, Manufacture center, Quality control department, Market center and International trade department. We have been dedicating to research on excellent paint/coating, adhesive for over 15 years. And now still conti...
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