What is the special role of water in water based coatings?

The production of water-based coatings requires dispersing equipment, mixing equipment, grinding equipment and filling equipment. According to the size of the output, the type of equipment is selected, and the equipment is determined according to the output and the degree of automation. Shanghai Huijun Electromechanical provides a full range of technical services integrating equipment design and manufacturing, production line layout design and installation, automatic production line, automatic batching system, automatic filling system and other design, installation and commissioning, as well as EPC general contracting project, which can provide more professional technical advice, reduce the problems and hidden dangers that you can not expect in the future use of equipment production line, optimize the trouble of unreasonable equipment matching in your production process, maximize the production efficiency of equipment and systems, and reduce energy consumption; The automatic control system can reduce the worry of high labor costs in the future, and achieve stable and confidential formulas, safe and efficient production

The water used in water-based paints is not tap water in the general sense. Rather, it is deionized water obtained after special treatment. The basic requirements for deionized water are clean and free of mechanical impurities.

The calcium and magnesium ions contained in ordinary water will affect the stability of the paint solution and tank paint in the electrophoretic paint (especially the deposited swimsuit). Ordinary water also contains bacteria and microorganisms, which will affect the quality and stability of coating products. However, deionized water incurs a lot of production costs because it requires specialized equipment to operate.

But in general, deionized water is still much cheaper than organic solvents.

Water is a polar solvent, emulsion resin and pigment filler as the main component of the coating in latex paint, must be emulsified and dispersed in water with the help of emulsifiers and dispersants, respectively, and may be added texnol, propylene glycol phenyl ether, diethylene glycol butyl ether, triethylene glycol butyl ether as film-forming additives, due to the large surface tension of water and slow volatilization, it is often necessary to add a small amount of organic solvent to reduce the surface tension to improve the volatilization rate. For the above purposes, while adding organic solvents, the toxicity of the product to the human body and the pollution of the environment are correspondingly increased, and the safety of the product is reduced, so the amount of organic solvent should be minimized in the water-based coating. This is also an important technical indicator to measure water-based coatings.

When decorating the house, we all know that it is inseparable from the decoration materials, when choosing materials, the paint is something that everyone will consider buying, and now there are many types of paints, and water-based paints are just one of them, so what do you know about the advantages of water-based coatings? A lot of people don't know about it! Let's take a lookAdvantages of water-based paints:What is it and how to buy water-based paints?

1.Water-based coatings use water as a solvent, saving a lot of resources; Water-based coatings eliminate fire hazards during construction; Reduced pollution to the atmosphere; Water-based coatings use only a small amount of low-toxicity alcohol ether organic solvents, which improves the working environment conditions. Generally, the organic solvent of water-based paint (accounting for 10% of the coating) is between 10% and 15%, but now the cathode electrophoretic coating has been reduced to the following, which has a significant effect on reducing pollution and saving resources.

2.Water-based coatings can be applied directly on wet surfaces and in wet environments; Water-based coatings have good adaptability to the surface of the material and strong coating adhesion.

3.Water-based paint coating tools can be cleaned with water, which greatly reduces the consumption of cleaning solvents.

4.The electrophoretic coating film of water-based paint is uniform and flat. Good flattening; The inner cavity, weld, edges and edges can be coated with a certain thickness of coating film, which has good protection; Electrophoretic coatings have the best corrosion resistance with thick-film cathode electrophoretic coatings.

Salt spray resistance up to 1200h.

How to choose water-based paints.

1.Look at the good paint that can be opened, it should be water-free, starch-free, rust-free, and mildew-free.

2.Look at the aqueous solution of water-based paint after storage for a period of time, there will be delamination, the upper quarter is the water solution, and the lower layer is paint particles. Observe whether the water solution is colorless or yellowish, clear and clean, and there are few floating objects.

The aqueous solution of inferior paint is more turbid, and there are more floating objects.

3.To see the paint particles, you can take a small amount of paint and put it into clean water, stir it gently, and observe whether the water is still clear, whether the paint particles are uniform in size, and whether they are relatively independent and have no adhesion in the clean water. Inferior paint will stand in the cave after stirring.

That is, turbidity, particle size differentiation.

4.Look at the coating film, the coating film should not fall off the powder, and has a certain resistance to washing, and there are dirt that can be washed and wiped with water. After the high-quality product is wiped with a damp cloth, the color of the coating film is as bright as new, while the coating of the inferior product will fade or even be damaged after washing it several times. Liquid caution.

5.The quality of the product is judged from the express description of the product. The packaging barrel of latex paint should be marked with at least the following items: product model, name, batch number, standard number, weight, manufacturer and production date. Consumers should pay attention to whether there are the above-mentioned express signs when purchasing.

Paint is one of the materials that every family can not live without, water-based paint is one that everyone likes when choosing, and everyone also needs to know the quality of this product when buying. The above is what are the advantages of water-based coatings introduced to you today and the purchase method of water-based coatings, which is the end here.

Water-based paint is undoubtedly what many of us will use when decorating the house, so at this time, some people will say, I don't know what the benefits of water-based paint are, what can I do with it. So today I will introduce to you here aboutWhat is a water-based paint, and what are the advantages of water-based paints. If you are interested, please follow us and take a look.

1. What is a water-based coating.

1. What is a water-based coating, water-based coating refers to a coating prepared by forming an emulsion as a film-forming material, so that the solvent-based resin is dissolved in an organic solvent, and then the resin is dispersed in water to form an emulsion with the help of an emulsifier through strong mechanical stirring. For post-emulsion emulsions, the finished coating can be diluted with water during application. Water-dispersible coatings mainly refer to coatings prepared by using synthetic resin emulsions as film-forming materials.

2. What is a water-based coating, a water-based coating refers to a dispersed emulsion composed of small particle clusters, in which the unsaturated vinyl monomer is polymerized and dispersed in water in the presence of an emulsifier at a certain temperature. Paints prepared by adding a small amount of water-soluble resin to water-soluble resin cannot be called latex paint. Strictly speaking, water-diluted paints cannot be called latex paints, but they are also classified as latex paints.

3. Water-based paint is a coating with water as the medium. For example, all of our interior and exterior coatings, metallic coatings, automotive coatings have corresponding water-based coating products. It can be seen that water-based coatings have been widely used in many industries.

Our general focus is on waterborne wood coatings, which are the most technically challenging and technologically advanced products in wood coatings.

4. Water-based wood paint and its advantages of non-toxic environmental protection, odorless, very low volatility, high safety, non-yellowing, and very beautiful use have become more and more popular in the market with the enhancement of people's awareness of environmental protection.

5. At this time, many companies have also set off a wave of environmental protection and environmental protection. Everyone looked at the future trends in environmental protection and made improvements to their products. However, only a few companies are able to achieve complete environmental protection.

Second, some functions of water-based coatings.

1. First of all, the protection function is anti-corrosion, waterproof, oil-proof, anti-collision, chemical resistance, light resistance, and temperature resistance.

2. The object is exposed to the atmosphere, and the oxygen is corroded into oxide by oxygen, resulting in metal corrosion, wood decay, cement weathering and other destructive phenomena. Coating the surface of an object to form a protective film can prevent or delay the occurrence and development of these damaging phenomena and extend the life of various materials.

3. Protective effect is one of the main functions of coatings. The second is the decorative function, which is mainly to protect the color, gloss and flatness of the pattern.

4. Different materials are coated with paint to obtain a colorful appearance, which can beautify the living environment of human beings and contribute to the material and spiritual life of human beings.

I believe everyone already understands the above suggestions. For the choice of water-based coatings, we still have to combine their own old hands and their own preferences. I hope that the advice on what is a water-based paint will be helpful for everyone to buy.