Coating knowledge: interior wall coating that can improve air quality

It is suggested that there are two main types of interior wall coatings that can improve air quality: one is the coating with bactericidal and mildew resistant functions (nano photocatalysis); the other is the coating that can release negative ions in the air (adding negative ion additives) and improve the indoor air quality The performance characteristics of these two types of coatings are compared as follows: Comparison of the characteristics of nano photocatalytic coatings and anionic release coatings Functional characteristics nano photocatalysis coating can release negative ion coating to produce function The working conditions need the irradiation of external UV light source No external energy is needed to stimulate the action principle of purifying air Electron hole pair, production 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 Home of coatings: there are two main types of interior wall coatings that can improve the air quality: one is the coating with bactericidal and mildew resistant functions (nano photocatalysis); the other is the coating that can release negative ions in the air (adding negative ion additives) and improve the indoor air quality The comparison of the performance characteristics of the two types of coatings is as follows: the comparison of the characteristics of nano photocatalytic coatings and the coatings that can release anions; the functional conditions of nano photocatalytic coatings that can release anions; the irradiation of external UV light source; no excitation of any external energy source; the principle of air purification; electron hole pair; oh · radical and o Active oxygen and redox The electrostatic field ionizes the air to produce hydroxyl anion (H 3O 2 - or H 2O · Oh -) and then has the characteristics of physical adsorption, electrical neutralization and chemical reaction It has the advantages of nano materials At the same time, it has the characteristics of chemical stability, non-toxic and insoluble It can permanently release negative ions and produce far infrared rays with a wide range of wavelengths It has the functions of antibacterial, sterilization, deodorization and deodorization Anti bacteria, deodorization, anti ultraviolet, NOx and VOC can remove the harmful gases such as formaldehyde, ammonia and benzene in the indoor air According to Yongming, the effect of anti bacteria and sterilization appears to be anti-bacterial It has an obvious purification effect on NOx, and a certain purification effect on other harmful gases The purification of formaldehyde, ammonia and benzene can reach 90% within 96 hours, with an obvious antibacterial and bactericidal effect The advantages of the product are low energy consumption, simple operation, non-toxic, mild reaction conditions, no secondary pollution, wide range of application, safe, efficient, durable, broad-spectrum, convenient and other nano TiO 2 coating photocatalysis air purification and antibacterial sterilization mechanism are shown in the following figure: Figure 1 photocatalysis air purification and antibacterial sterilization mechanism of nano TiO 2 coating It is very important to prepare photocatalytic bactericidal air cleaning coating It includes the method of adding nano-TiO2 and the proportion of nano-TiO2 to other components in the coating The general principle is to ensure that the coating has certain coating viscosity and physical and mechanical properties of the coating, and not because the proportion of other materials is too large to cover nano-TiO2, resulting in significant reduction of photocatalytic effect The anionic coating can release anions by adding anionic additives to form hydroxyl anions The formation process of hydroxyl anions is shown in the figure below The chemical reactions are as follows: H 2O + e - → H + + OH - H + + e - → H 2O + OH - → h 3O2 - (H 2O A kind of Oh -) Fig 2 the formation process of Hydroxyl Anion the home of coatings focuses on the news and coating of coating, diatom mud, paint coating, coating process, fire retardant coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect of fire retardant coating,