Common knowledge of coating: water-based environmental friendly wood paint

Core tip: waterborne wood paint was used earlier in European and American market, and it had been used 30 years ago The use of waterborne wood paint in China is a matter of recent years With the enhancement of people's awareness of the environment, the proportion of waterborne wood paint will increase year by year At present, there are many brands of waterborne wood paint in the market According to their main components, there are no more than three categories The first one is the water-based wood paint with acrylic acid as the main component: its main feature is good adhesion, will not deepen the color of wood, but poor wear resistance and chemical resistance Because of its low cost and low technical content, Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: water-based wood paint in Europe and the United States market earlier, in 30 years ago, there was a water-based alkyd wood paint The use of waterborne wood paint in China is a matter of recent years With the enhancement of people's awareness of the environment, the proportion of waterborne wood paint will increase year by year At present, there are many brands of waterborne wood paint in the market According to the difference of its main components, there are no more than three categories The first category is acrylic acid based waterborne wood paint: its main characteristics are good adhesion, not deepen the color of wood, but poor wear resistance and chemical resistance Because of its low cost and low technical content, it has become the main product in the current market At present, the retail price of imported products on the market is 100-120 yuan / kg) The second type is the water-based wood paint with the main composition of acrylic acid and polyurethane: it not only inherits the characteristics of acrylic paint, but also increases the characteristics of wear-resistant and chemical resistance, and the price is relatively expensive (the first two categories are mostly used for doors and windows and furniture) The third type is 100% polyurethane water-based paint: its wear resistance is even several times that of oil-based paint It is a high-grade product in water-based paint, and its price is expensive For example, Germany's Bayer company has developed a two-component waterborne polyurethane wood paint Compared with solvent based products, the comprehensive performance of the product is not inferior, and some properties are better It not only has excellent scratch resistance and abrasion resistance, but also has the resistance to ordinary household chemicals For example, after the furniture surface painted with the paint is stained with red wine for 5 hours, the paint surface has no change The paint will not change after 6 hours of coffee In addition, no trace will be left after 1 hour of contact with the paint, whether it is detergent or ammonia water However, it should be noted that due to the difference between China's eating habits and living habits and those of Europe and the United States, the requirements for waterborne wood coatings will be higher Many excellent waterborne wood coatings (including the products of the world's top ten paint companies) have been applied abroad, and after they were popularized in China, they have encountered great problems, which pose a great challenge for the cause of Waterborne Wood Coatings in China It is the key point of its future development in China, that is to improve the hardness, fullness, heat resistance and alcohol corrosion resistance of its paint film Considering the long-term interests of our government's economic development, environmental protection will be greatly strengthened Therefore, waterborne wood coatings will inevitably develop with the development of waterborne building coatings, waterborne automotive coatings, waterborne marine coatings, solventless epoxy marine coatings and powder coatings Improving indoor air quality effectively has become the consensus of all countries in the world The United States first formulated the famous 66 regulations and CAA regulations that restrict the use of solvents, which require the coating to transition to the water-based system to reduce the amount of solvent volatilization in the air The European Union "parliamentary Management Committee" is responsible for the implementation of laws, regulations and management regulations of member states related to construction products In 2004, it banned the production and sale of solvent based paint and changed to use water-based paint (1) Advantages: water-based environmental friendly wood paint, with water as the diluent, does not burn, is non-toxic and non irritating, harmless to human body, does not pollute the environment, the paint film is crystal clear, flexible and has the characteristics of water resistance, yellowing resistance, easy to use, etc (2) Disadvantages: the solid content of water-based environmental protection wood paint is low (about 35%), so the surface fullness is poor, wear resistance and chemical resistance are poor (easy to leave traces in contact with soy sauce, vinegar, etc.), and construction cannot be carried out in low temperature (< 5 °) and humid climate Home of 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