Common knowledge of coatings: balance of functions and environmental protection

Core tip: it is said that the expenditure of paint (commonly known as paint) only accounts for about 5% of the whole decoration cost, but accounts for 80% of the whole decoration area 100% determines the overall decoration effect and room environment, and directly affects family health The importance of coatings can be seen from this, but in the face of a wide range of products in the market, how to choose will be quite a professional problem More and more coatings are made by chemical synthesis, and the types and applications of coatings are more and more extensive Here we will introduce the most commonly used interior wall emulsion paint in home decoration Let's have a look Functional articles Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: it is said that the cost of paint (commonly known as paint) only accounts for about 5% of the whole decoration cost, but accounts for 80% of the whole decoration area 100% determines the overall decoration effect and room environment, directly affecting family health The importance of coatings can be seen from this, but in the face of a wide range of products in the market, how to choose will be quite a professional problem More and more coatings are made by chemical synthesis, and the types and applications of coatings are more and more extensive Here we will introduce the most commonly used interior wall emulsion paint in home decoration Let's have a look The choice of functional wall paint is more and more valued by consumers in the modern home decoration In addition to the basic quality requirements such as moisture-proof, crack proof and scrub resistance, consumers also begin to pay more and more attention to the functional role of wall paint Performance index (1) scrub resistance: refers to the ability of wall paint to withstand repeated scrubbing in use The national standard is that the qualified products shall not be less than 100 times, and the high-quality latex paint products can be washed more than 2000 times (2) Covering power: it means that a certain amount of paint can cover the color and color difference on the substrate The stronger the covering power is, the higher the solid content is, indicating good finishing effect and low consumption (3) Adhesion: reflects the firmness of the paint film attached to the wall The latex paint with strong adhesion will rarely peel and peel off the wall (4) 5% NaOH resistance: the stability index of interior wall paint, because the wall materials are mostly alkaline, which has a destructive effect on the paint film, and the alkali resistance determines the durability Choose different types of paint according to room function When choosing, choose latex paint according to room function For example, the wall of bedroom and living room should use latex paint with strong adhesion, fine texture, powdery resistance, radon resistance and other properties; the kitchen and bathroom should be waterproof , mildew proof, easy to wash and other performance of latex paint; and balcony due to often accept the sun exposure and the baptism of wind and rain, ordinary latex paint is relatively easy to fall off and fade, so should use professional rain paint Different wall base requires different coating performance, considering the covering power and adhesion of the coating itself, different coating should be selected for different wall base For example, for the concrete and cement base course, the coating shall have good alkali resistance and covering ability Latex paint, scrub resistant interior wall paint, colorful pattern paint, etc can be selected; for the lime and gypsum walls, porcelain like paint, etc shall not be selected; non alkaline paint shall be selected for the wooden base course Small house type should consider expanding the visual space if according to the gloss effect, emulsion paint is divided into matte, matte, semi gloss, mercerization, gloss emulsion paint, etc Considering that small and medium-sized houses are gradually becoming the mainstream of urban housing consumption, people hope to expand the sense of room space as much as possible while pursuing the personality of room decoration For example, ICI recently launched the duluxhaolang full effect matte wall paint with innovative lumiech wide display technology, which is the first wall paint product in China with the function of improving the visual space of the room Environmental protection oil paint is diluted with organic solvent, while water paint is diluted with water, so the problem of solvent toxicity of water paint is relatively small According to the experts from China Coating Association, latex paint is the most safe material among many coatings because of the use of water as the solvent of coatings Environmental indicators are not 100% non-toxic and harmless for all latex paints The possible harmful substances in latex paint include: (1) formaldehyde: formaldehyde can stimulate eyes, throat, cause skin allergy, and even cause asthma (2) Other organic solvents: including dichloromethane, chloroform, benzene, toluene, etc., will cause harm to human body (3) Heavy metals: including lead, cadmium, chromium and mercury, which are harmful to nervous system, cardiovascular system and genetics Therefore, when choosing emulsion paint, we should try our best to choose environmentally friendly emulsion paint Absolute environmental protection is not necessarily good "absolutely benzene free paint products that can ensure the brushing effect are almost nonexistent" Experts believe that the benzene free products claimed by some brands refer to the fact that additives such as benzene and benzene series are no longer added to the production process, but the benzene and benzene series contained in the raw materials will still exist in a certain proportion Although it is known as the "four killers" of indoor environment together with formaldehyde, radon and gamma rays, benzene series is an indispensable component in various paint coatings, paint additives and thinners In fact, the national standard "limit of harmful substances in interior wall coatings for interior decoration materials" stipulates that the VOC of interior wall latex paint shall be less than 200g / L, and the free formaldehyde content shall be less than 0.1g/kg As long as the standards are met, it is unnecessary to overemphasize environmental protection The existence of oil paint is reasonable "The relationship between oil paint and water paint is like CRT TV and LCD TV Although LCD is light and radiation-free, CRT is obviously better in color restoration and brightness and other image effects!" According to experts in the industry, although the oil paint is toxic, it is relatively mature after all, while the water paint is not as good as the oil paint in terms of drying time, hardness, fullness and other performance and technology for the time being, resulting in the increase of construction costs, high comprehensive costs and other issues, and consumers are still willing to choose the oil paint, which is in line with China's national conditions "In China's current consumer market, although there are some high consumers, most of them are still low consumers, which determines that there is a market for oil paint." Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,