Coating classification: external wall heat insulation and waterproof integrated coating

Core tip: Product Introduction: Thermal insulation coating is a kind of functional coating which can reduce the heat accumulation inside the coated object through the mechanism of barrier, reflection and radiation, so as to achieve the purpose of energy saving and improving the working environment or safety It can be used for the exterior wall of buildings The heat insulation and waterproof coating has a good reflection function, which can reflect 75% of the sun's light and heat energy It can radiate the heat accumulated by the substrate at a speed, and has a low conductivity coefficient (0.058w / MK), which can effectively block the heat conduction Generally, the temperature of the roof surface can be reduced by 23 ℃ 20% - 70% of the cost of energy-saving air conditioning No matter 40 ℃ or Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Coating home news: Product Introduction: thermal insulation coating is a functional coating which can reduce the heat accumulation inside the coated object through barrier, reflection, radiation and other mechanisms, so as to achieve the purpose of energy saving and improving the working environment or safety It can be used for building exterior walls The heat insulation and waterproof coating has a good reflection function, which can reflect 75% of the sun's light and heat energy It can radiate the heat accumulated by the substrate at a speed, and has a low conductivity coefficient (0.058w / MK), which can effectively block the heat conduction Generally, the temperature of the roof surface can be reduced by 23 ℃ 20% - 70% of the cost of energy-saving air conditioning No matter 40 ℃ or 50 ℃ in hot weather, the coating of the product is cool to touch and step on The heat preservation and insulation of foreign buildings began from the world energy crisis in the early 1970s Nowadays, in order to save energy, using thermal insulation materials to achieve the purpose of energy conservation has become an important means commonly used in various countries The proportion of building energy consumption in the whole energy consumption is generally 30% 40%, and the vast majority of it is heating and cooling energy consumption Saving energy, reducing energy consumption and improving economic benefits are one of the basic objectives of scientific research and technological development, and coating is no exception Through research, based on the original functions of decoration, protection, anti-corrosion and waterproof, the coating has the function of heat preservation For example, applying heat preservation and insulation coating on the outer wall can keep the indoor temperature constant, increase the indoor and outdoor temperature difference, reduce the cooling energy consumption in summer and reduce the heating cost in winter At present, the heat preservation technology is developing towards the integration of high efficiency, thin layer, heat insulation, waterproof and external protection How to make full use of the heat transfer mechanism to develop new energy-saving materials is the main development direction Heat transfer is realized by convection, radiation and molecular vibration In order to achieve good heat insulation effect, coating design needs to cut off the way of heat transfer from the following three aspects: 1) The molecular vibration heat conduction is mainly carried out by solid materials The larger the thermal conductivity of solid materials is, the more sufficient the heat conduction will be Therefore, the materials selected for thermal insulation coating should have smaller thermal conductivity, and the smaller the volume density is, the more ideal under the premise of maintaining sufficient mechanical strength; 2) The heat convection is carried out by the flow of air There is no large space in the insulation layer that can make the air convection, so the air convection must be weakened to the limit; 3) the transmission of heat radiation does not need medium, and the intensity of heat radiation can be reduced by the reflection, scattering and emission of the material surface A kind of coating with good heat insulation effect is often the result of synergism of various heat insulation mechanisms At the same time, the exterior wall coating is exposed to the wind, rain and sun for a long time After a period of time, the appearance of the facing will be powdered, discolored, faded, and lost light The requirements for weather resistance and color retention of high performance exterior wall coatings are generally more than 8~10 years Therefore, when preparing high-performance exterior wall coatings, we should select excellent weatherproof emulsion as the base material, and now use silicone acrylic emulsion Principle: 1 Reflecting heat insulation, mainly reflecting 400-2500nm visible and infrared energy, not allowing the heat of the sun to accumulate on the surface of the object 2 With hollow ceramic beads as thermal insulation material, a dense vacuum layer is formed on the surface of the coating, which can effectively block the conduction of solar radiation heat and air heat radiation, and reduce the heat exchange inside and outside the coating 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,