At present, there are many carbon carving products on the market. Many of my friends do not know where to start when purchasing carbon carving products. Some friends wonder why carbon carvings have adsorbed benzene, formaldehyde, toluene and Other chemical gases as well as fumes and odors and other unclean gases. Carbon carving specific role? How long is carbon carving? Will carbon carving coloring affect its effectiveness? How much carbon carving is suitable for different spaces? How to identify true and false carbon carvings? Carbon carving should pay attention to what aspects and other issues. To solve these problems, provide corresponding answers, hoping to help everyone. 1, the role of carbon carving principle Before understanding the principle of carbon carving, first look at activated carbon. Carbon is produced from wood under high temperature (such as bamboo charcoal, charcoal, coal, etc.). The activated carbon is a carbon material (such as wood carbon, bamboo carbon, carbon, bamboo charcoal carbon, fruit shell charcoal, coconut shell charcoal, petroleum coke, fiber charcoal, etc.), after crushing, screening, and carbonization Activated furnace for high temperature catalysis or chemical catalysis, so that the surface of the charcoal and the internal generated a large number of collusion of small holes, forming a criss-cross honeycomb structure, and then after pickling or washing, drying and made. The specific surface area of ​​activated carbon is between 500 and 1700 m2/g. Has a strong adsorption performance, is an extremely versatile adsorbent. After the activated carbon particles were shaped into blocks, the carbon carvings were engraved, trimmed, painted, and then subjected to tri-state exchange activation technology for carbonization and activation, so that the entire block of columnar materials were found to be live ash components. Adsorption of activated carbon is retained. Charcoal carving art is another leap after the completion of activated carbon synthesis technology, so that the art of carbon carving can enter the millions of households with the beauty of art and bring pure and natural living space to thousands of families. The main adsorption method of carbon carving artwork is physical adsorption, which is based on Van der Waals force when the molecule collides with the molecules of the adsorbed material. The greater the collision probability, the stronger the adsorption force, and the collision probability and temperature. Pressure, gas flow rate, gas concentration, etc. are related. Therefore, the degree of retention of activated carbon adsorption during processing and the use of raw materials for practical treatment of activated carbon are particularly important (Some inferior carbon carving adhesives are used to form and paste carbon powder, since the adhesive will be used to adsorb the toxic and harmful gases in activated carbon molecules. To seal off, there is no difference in the appearance of such products from the pure carbon carving products, but there is almost no adsorption effect.) 2, carbon carving function (1) Deodorization: With adsorption and catalytic performance, it can strongly adsorb the odor source. (2) Detoxification: It can regulate indoor air, absorb toxic, harmful chemical gases such as ammonia, formaldehyde, volatile organic compounds (VOC), benzene, and toluene emitted from decorative materials, and can regulate room humidity. (3) Mildew: Adsorption of catalytic function allows the mold to have no breeding space. It not only solves mold problems, but also removes offensive musty smell. (4) Sterilization: Efficient removal of bacteria such as Escherichia coli, Staphylococcus aureus, Bacterial intestine, mold, pyogenic bacteria, and pyothorax can inhibit the spread of pathogenic diseases such as enteroviruses, influenza, and filtered viruses. 3. The service life of carbon carving The useful life of carbon carving artwork is related to its quality and concentration of harmful gases. The larger the volume of carbon sculptures, the longer the service life; the smaller the concentration of harmful gases, the longer the practical life. The life span of a typical carbon carving artwork is 4-5 years. Because of its unique adsorption physical adsorption principle, it can be restored to practical value by processing. Some reputable big brands offer free updates, making carbon carvings available. The update of carbon carving works of art uses a hot air regeneration method. The temperature can be heated to 100°C to 150°C in vacuum to desorb the carrier, and the temperature can be increased and regenerated more thoroughly, up to 300°C. Activated carbon adsorbs adsorbate on the surface of the adsorbent through the attraction between the molecules, and can be desorption and regeneration by heating and pumping. 4. Will the colorful processing of carbon carving artwork affect its effectiveness? There is a certain influence, but the impact is not great. The specific look at what the manufacturer is using and how to paint colors. If the carbon carving artwork is made of imported pigments, the pigment has a strong air permeability, and if the colored area does not exceed 40% of the surface area of ​​the product, the adsorption performance of the product will not be affected. 5, the use of carbon carving area What size of space is used for carbon sculpting is due to the difference in house height, toxic and harmful gas concentration, room conditions, and different types of products. In general terms, the product and the room are configured as plate-shaped ornaments: 30-50g/m2; plate-shaped pendants 40-60g/m2; cylinder ornaments 60-90g/m2; vase ornaments 70-100g/m2; shaped ornaments 60 -90g/m2. According to the specific circumstances. 6, true and false carbon carving recognition If there is a professional instrument for measuring air quality, it is the most effective, because it is not really helpful to distinguish carbon sculptures according to the air quality indicators. If there is no professional instrument, it can also be identified by a simple method: (1), water absorption method: Activated carbon molecular diameter is greater than 0.4nm less than 2.0nm, while the harmful gas diameter is between 0.41nm (methane) to 0.62nm (xylene), the water molecule diameter is 0.324nm. Therefore, activated carbon carving products can adsorb a large number of toxic and harmful gases and water. The better the product is, the better the water-absorption performance is; the inferior products have poor water-absorption performance because they are all glued together. The adhesive can be divided into two major categories: water soluble and non-water soluble. Products made of water-insoluble adhesives do not absorb water; products made of water-soluble adhesives can absorb a certain amount of water, but they stay in water for a little longer, and the whole piece of charcoal will spread out. (2) Comparison of formaldehyde concentration: Using the same two containers, inject the same amount of formaldehyde into the liquid, place the charcoal in one box, and keep the other. After 24 hours, compare the concentrations. (3) Furniture Comparison Method: In the furniture door with formaldehyde smell, add carbon carvings for 24, 48, and 72 hours. (4) Room comparison method: In two rooms of the same condition, a carbon carving was placed in one room and the other room was not placed. After 24 hours to open the door to test the two rooms, you can feel the contrast. (5) Tobacco Flavor Contrast: A. Place charcoal carvings in rooms with strong smoke. b. Ashtray: On an empty ashtray with a high smoke smell, covered with charcoal carvings, the smoke smell of the ashtray will fade and soon disappear. c. Inject the same amount of smoke into the same two beakers, one of which contains an activated carbon carving. After 5 minutes, compare the smoke concentration. After 1 hour, smell the smoke and observe the yellow tar deposit. 7. Attention should be paid to the use of carbon carving A. When the product is unpacked, it begins to calculate the product adsorption period. B. When the room is ventilated for a long time and does not use this product, it is best to seal the package; C, the product should be hung or put in the indoor moderate and should not be too high Position; D, product surface can use a soft brush to clean, do not use liquid scrub; E, such as indoor relative humidity of 95% or more, can be temporarily sealed with plastic bags; F, if the product does not wet, It is best to use natural drying methods; G, products should not be placed in high-density, large particle pollution areas, such as construction sites, industrial plants, etc.; away from fire. 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Modern family is not only beautiful, it should be healthy. Charcoal carving is a high-grade handicraft made from high-performance activated carbon as a raw material, and has undergone many processes such as sandblasting, sculpture, and manual painting. Carbon carving has been given artistic value on the basis of maximizing the activity of activated carbon.