2019-07-05
Water - based coating formulation design system Waterborne coatings, including waterborne wood lacquers, are water-based dispersions and diluents. Unlike conventional solvent-based coatings, the formulation system is a more complex system.When formulating, not only the type of polymer, the properties of the emulsion and the dispersion are concerned. It is also necessary to rationally select various additives and make a reasonable match in consideration of the interaction between the components.Also select some special additives according to special requirements, and finally form suitable formula.The basic components and functions of water-based wood paint are as follows: 1.polymer emulsion or dispersion: This is the film-forming binder, which determines the main function of the film. 2.Film-forming aid: After the water is volatilized, the emulsion or the dispersion particles are formed into a uniform and dense film, and the film formation property under low temperature conditions is improved. 3.Suppressing agent and defoaming agent: inhibiting the bubbles generated in the paint solution during the production process and causing the generated bubbles to escape from the liquid surface and breaking the bubble. 4.Wetting leveling agent: Improve the wetting property of the paint liquid on the substrate, improve the leveling property, and increase the adhesion of the paint film to the substrate. 5.Rheology additives:provide good fluidity and leveling of the paint, and reduce the defects in the painting process. 6.Surface Control Aid: Improve the performance of the film. 7.Matting agent: regulates the gloss of waterborne wood coating. 8.Preservative: Prevent the paint from becoming moldy during storage. 9.pH adjuster: adjust the pH of the paint to stabilize the paint. 10.Colorants and fillers 11.Special additives In addition, the formulation is often designed to add a small amount of deionized water to make paint. Sinograce Chemical produces water based additives, such as thickener, crosslinking agent, wetting agent.
read more2020-02-22
The basic principles of the following waterborne wood paint formulation design The amount of the emulsion or the aqueous dispersion is as much as possible because the material of the emulsion is mainly composed of a polymer material which is a backbone for ensuring the final film properties; The additive are as few as possible, and they can be used without being used. These additive will be present in the film in a free state after film formation, which will inevitably affect the mechanical properties of the film; The amount of pigments and fillers is preferably as small as possible, as long as the purpose is achieved, the less the better, the introduction of these materials necessarily means the introduction of grinding aids, thereby affecting the film properties. Sinograce Chemical produces water based additives, such as thickener, crosslinking agent, wetting agent.
read more2019-07-03
Classification and characteristics of waterborne coatings - waterborne light curing coatings Waterborne light curing coating is a kind of coating classified by curing method. It is a very important kind of coating.In any polymer molecule, a structure in which a reactive group capable of being decomposed by a photoinitiator or a structure capable of being excited by a high-energy radiation to produce a reactive group can be prepared as a photocurable coating or a radiation-curable coating.According to the source of light required for curing, there are ultraviolet (uV) curing coatings, visible light curing coatings and electronic (EB) beam curing coatings. The most common is UV curing.The light-curing coating has a highly crosslinked structure, excellent solvent resistance and scratch resistance, and high hardness of the paint film. It is widely used as a water-based floor paint, and can of course be used as a water-based furniture paint, water-based cabinet paint and water-based Wall paint. Sinograce Chemical produces water based coating,Water-based glue, polyurethane coating visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511
read more2019-07-02
Sol-gel coating Classification and characteristics of waterborne coatings - sol /gel coatings Sol-Gel coatings is a new type of coating that has received special attention in recent years. The progress of inorganic nanopowders has promoted the development of sol-gel coatings.The main component of the sol-gel coating is an organic resin and a silane compound, and the silane is hydrolyzed to form a sol, which is then condensed on a solid surface to form a gel.The reactive group in the silane is easily reacted with an inorganic material such as an organic resin or a silica sol, and the silane itself can be condensed into a macromolecule of a network structure to finally form a paint having high hardness, scratch resistance, solvent resistance, and water resistance. membrane.The solvent in the coating is mainly an organic solvent such as isopropyl alcohol, which contains a small amount of water. Strictly speaking, it is not a water-based paint in the true sense, but it is an environmentally-friendly paint. The newly emerging sol-gel coating for wood lacquer is a promising new variety of wood coatings. Sinograce Chemical produces water based coating,Water-based glue, polyurethane coating visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511
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