Water-based resins can be divided into water-emulsion, water-dispersed and water-soluble according to their appearance. There are many people think that this is the same resin, in fact, it is not only the appearance is not the same and the use and characteristics are very different. Water-based acrylic resins are generally divided into water-based emulsion acrylic resins and water-soluble acrylic resins. Water emulsion acrylic resin VS water soluble acrylic resin 01 Water emulsion acrylic resin The water-emulsion resin is prepared by adding an emulsifier. Oily heavy, generally milky white. The water-emulsion resin is oily and completely depends on the surfactant, that is, the emulsifier, to wrap it up and disperse in water. Therefore, when they are used in combination with other resins and auxiliaries, special care should be taken that the coat is not stripped by temperature, stirring power, or adsorption and reaction of the external substance, and the emulsion is broken and flocculated. The application range is narrow (5-40 degrees), beyond this range, it is possible to break the milk. 02 Water soluble acrylic resin Water-soluble resins are achieved by self-emulsification with hydrophilic groups on the polymer chain. Most of them are transparent, true solution of molecular dispersion, and belong to nano dispersion state.、 Water-soluble resin, because it contains many polar groups on the molecular chain, such as: hydroxyl, carboxyl, sulfonic acid, amino, amide, hydroxymethyl, oxidized vinyl, etc. How do different types of acrylic resins apply? Water-emulsion acrylic resin such products mostly react with acrylic monomer without methyl, so the polymerization of this kind of resin is definitely lower than the glass transition temperature of solid acrylic resin. They have lower TG, so some substrate (soft) applications are unmatched by other solid acrylics. In particular, the application of soft substrates such as paper and leather is the best embodiment. When they are benzenized and acetated, they become styrene acrylic emulsion, vinegar acrylic emulsion, which is the styrene acrylic emulsion we often see, vinegar acrylic emulsion, pure acrylic emulsion. The other biggest application for these resins is architectural coatings, which account for a large share of the market. Water-soluble acrylic resins vary in surface activity according to the proportion and distribution of hydrophilic and hydrophobic groups, such as wetting dispersion, emulsification defoaming, osmosis and adsorption. According to the structural properties of these water-soluble resins, the selection of additives and matching conditions can make them find ideal applications in coatings, adhesives, textile and leather additives. According to your coating substrate, which acrylic resin product to use in detail can consult Sinograce chemical customer service +8615755193346 (wechat same number)

I.Definition The emulsion is a colloidal system with a particle size of 0.1~10μm formed by two insoluble liquids through the action of emulsifier. Secondary dispersion refers to a colloidal system formed by particles (or molecular groups) less than 1μm are dispersed into a continuous phase (such as water) under the action of a stabilizer. By definition, the formation of emulsions and secondary dispersions requires a certain stabilizer or emulsifier. II. Stability Both emulsions and secondary dispersions are stabilized by stabilizers or emulsifiers to keep droplets or particles stable, but their stabilization mechanisms are slightly different. Secondary dispersions are generally more stable because they have a smaller particle size, exhibit a larger surface area in a continuous phase, and generally require fewer stabilizers. The stability of the emulsion depends on the size and distribution of the droplets, and more emulsifiers are needed to maintain stability. III. Application Fields Due to their differences in stability and composition structure, emulsions and secondary dispersions are also different in the field of application. Emulsions are usually used in cosmetics, emulsions and coatings, while secondary dispersions are more commonly used in drug delivery, nanocrystal growth, dye transport and other fields. IV. Summary In summary, the difference between emulsions and secondary dispersions is mainly reflected in their definition, stability and application field. Although they are different in the formation mechanism and application scope, they are all colloidal particle systems, and they can play a very good performance and effect in applications.

1.Type: There are three main types of water-based acrylic resins, including emulsion, water dispersion and aqueous solution. The emulsion is synthesized by emulsifying olefins in water under the action of water-based free radical initiator. The aqueous dispersion is synthesized by free radical solution polymerization or stepwise solution polymerization. Aqueous acrylics are directly soluble in water. 2.Features: Water-based acrylic resin has excellent weather resistance, good adhesion and fast drying speed. These properties make it widely used in coatings, adhesives, printing inks and textile auxiliaries. In addition, it also has good adjustability, and can adjust its performance by diluting, toning and adding fillers to meet different application needs. 3.Advantages: The biggest advantage of water-based acrylic resin is its environmental protection, the use of water instead of organic solvents, reducing environmental pollution and harm to the human body. In addition, it also has alkali thickening effect and good stability performance, and the reasons and influencing factors of these properties are also key factors in research and production. 4.Use: Water-based acrylic resin is suitable for industrial and decorative coating, providing anti-fouling, anti-fading, anti-chalk, water resistance and other functions. When selecting water-based acrylic products, it is necessary to consider their characteristics, advantages and how to match with solvent-based acrylic products to ensure the best application effect. Sinograce Chemical manufactures a variety of water-based acrylic resin emulsions for industrial coating and architectural coatings.

Architectural coatings mainly use water as a dispersing medium and diluent, and its advantages are that the water of the dispersing medium is non-toxic and harmless, manufacturing and storage and transportation without the danger of explosion, no pollution to the environment, and to solve the problem of excessive VOC(volatile organic compounds) of solvent-based coatings at normal temperature. Film forming agent is an important component material of architectural coating products, it can improve the production process, improve product performance, improve paint construction performance, reduce environmental pollution, and develop new special functions of coatings. Although the relative proportion of most auxiliaries used in coatings is not high, they often play a very key role in improving and improving the performance of coatings and coatings, so they are more and more valued by the industry. Film forming additives, also known as coagulants and coalescing agents, are usually high boiling point solvents. The film forming agent acts as a "temporary" plasticizer to reduce the glass transition temperature (Tg) of the polymer. Once the particle deformation and film forming process is complete, the film forming agent evaporates from the film, thus restoring the Tg value of the polymer to its initial value. Under normal circumstances, most film forming additives volatilization at room temperature lag 1-2 hours than water, therefore, film forming additives should be composed of a slower volatile solvent. As a film forming agent, the biggest prerequisite is that during the drying process, the water volatilizes, and the film forming agent remains in the coating, and it volatilizes from the coating. Latex commonly used in coatings has a lower glass transition temperature (Tg). Such as VAE emulsions at about 3 ° C, therefore, in most temperatures above 5 ° C conditions. These emulsions can form film normally, and the addition of film forming additives plays a certain role in accelerating the drying of the film. In addition to contributing to the film forming performance, the film forming agent also has the function of reducing the freezing temperature of the coating. For example, ethylene glycol and propylene glycol can be used as antifreeze agents for coatings. In addition, the film forming additives have certain effects on the wet film properties of coatings, such as leveling, anti-hanging and color development. Sinograce Chemical is a manufacturer of film forming additives and various water-based acrylic building resins, welcome to inquire.