I. Overview of the nano calcium carbonate industry 1. Definition of nanometer calcium carbonate Nano calcium carbonate is also known as ultrafine calcium carbonate. The standard name is ultrafine calcium carbonate. Nano-calcium carbonate is a new ultra-fine solid powder material developed in the 1980s with a particle size ranging from 0.01 to 0.1 μm. Due to the ultrafine refinement of nano-CaCO3 particles, the crystal structure and surface electronic structure change, resulting in quantum size effects, small size effects, surface effects and macroscopic quantum effects that ordinary calcium carbonate does not have. 2. Characteristics of nanometer calcium carbonate The most mature industry for nano-calcium carbonate applications is the plastics industry, which is mainly used in high-grade plastic products. It can improve the rheology of plastic masterbatch and improve its formability. Used as a plastic filler for toughening and strengthening, plastic bending strength and flexural modulus, heat distortion temperature and dimensional stability, while also imparting hysteresis to plastics. Nano Calcium Carbonate is used in ink products to exhibit excellent dispersibility and transparency and excellent gloss, as well as excellent ink absorption and high dryness. The nanometer calcium carbonate is used as an ink filler in the resin type ink, and has the advantages of good stability, high gloss, no influence on the drying performance of the printing ink, strong adaptability and the like. 3. Analysis of China's nano calcium carbonate industry chain Upstream industry: Limestone is a common non-metallic mineral and is a valuable resource for a wide range of uses. Limestone is the trade name of limestone as a mineral raw material. Limestone is widely used in the history of human civilization because of its wide distribution and easy access in nature. As an important building material, it has a long history of mining. In modern industry, limestone is the main raw material for the manufacture of cement, lime and calcium carbide. It is an indispensable flux limestone in the metallurgical industry. China is one of the countries with rich limestone resources in the world. It is distributed in all provinces, municipalities and autonomous regions except Shanghai, Hong Kong and Macao. According to the statistics of the former National Building Materials Bureau Geological Center, the distribution area of ​​limestone in China is 438,000 KM2 (excluding Tibet and Taiwan), accounting for about 1/20 of the country's land area. The limestone resources that can be used as cement raw materials account for about the total resources. 1/4 to 1/3. In order to meet environmental protection, ecological balance, prevention of soil erosion, landscape tourism and other aspects, especially with the continuous improvement and implementation of China's small town construction planning, the amount of cement limestone mining will be reduced. Among them, there are 257 large deposits, 481 medium-sized ones, and 486 small ones (the ore reserves are more than 80 million tons for large scale, 40-80 million tons for medium-sized, and less than 40 million tons for small). The total reserves of ore are 54.2 billion tons, of which limestone reserves. 50.4 billion tons, accounting for 93%; marble reserves of 3.8 billion tons, accounting for 7%. The reserves are widely distributed in 29 provinces, municipalities and autonomous regions except Shanghai. Among them, Shaanxi has 4.9 billion tons of reserves, ranking the highest in the country; the rest are Anhui Province, Guangxi Autonomous Region, Sichuan (including Chongqing), and each has its own Reserves of 3-4 to 3 billion tons; Shandong, Hebei, Henan, Guangdong, Liaoning, Hunan, and Hubei provinces each have reserves of 3 to 2 billion tons; Heilongjiang, Zhejiang, Jiangsu, Guizhou, Jiangxi, Yunnan, Fujian, Shanxi, Xinjiang, and Jilin The provinces of Inner Mongolia, Qinghai and Gansu each have a reserve of 2 billion to 1 billion tons; the five provinces of Beijing, Ningxia, Hainan, Tibet and Tianjin each have a reserve of 500-200 million tons. From the current demand for limestone at home and abroad, the annual demand in the world is about 1.2 billion tons, but 80% is for general use. High-quality lime has a small market and a low market due to low resources. In recent years, countries in the Asia-Pacific region have imported about 1.1 million tons of limestone from China each year because of insufficient domestic limestone resources. According to experts' prediction, the demand for high-quality limestone will increase by 250,000 tons per year in China and 300,000 tons per year in the Asia-Pacific region. Downstream industry: Nano-calcium carbonate has been used in foreign countries for 50 years and is widely used in rubber, plastics, paper, chemical building materials, inks, coatings, sealants and adhesives. Analysis of downstream application of nanometer calcium carbonate industry Downstream industry applications PVC profiles, pipes; wire and cable sheath rubber; PVC film (calender film) production, manufacturing in the footwear industry (such as PVC soles and decorative patches). Suitable for engineering plastic modification, PP, PE, PA, PC, etc. Natural rubber, nitrile, butyl benzene, rubber compound, etc., suitable for tires, hoses, tapes, oil seals, auto parts and other rubber products. Sealing structural adhesives such as silicone, polyflow, polyurethane, epoxy, etc. The pigment filler has the advantages of fineness, uniformity, high whiteness and good optical performance. The nanometer calcium carbonate has a steric hindrance effect, and in the paint making, the Liede powder with a large formula density can be suspended to prevent sedimentation. After the paint is painted, the whiteness of the paint film is increased, the gloss is high, and the hiding power is not lowered. The ink arranged by nanometer calcium carbonate has good body bone and viscosity, so it has good printing performance; good stability; fast dryness and no opposite effect; due to small particles, the printed product is smooth, the dot is complete, and the ink can be improved. The finish is suitable for high speed printing. Cigarette paper, recording paper, book printing paper, high whiteness coated paper, high-grade sanitary napkins, disposable diapers, and the like. The addition of nano-calcium carbonate in papermaking can improve the bulk density, apparent fineness and water absorption of paper; improve the strength and high-speed printing of special paper; and adjust the burning speed of cigarette paper. Applied in the feed industry, it can be used as a calcium supplement to increase the calcium content of the feed. Used in cosmetics, due to its high purity, good whiteness and small particle size, it can partially replace titanium dioxide. Adding nano calcium carbonate to toothpaste can improve its extrusion performance. Plastic industry rubber seal adhesive material coating ink papermaking other industries. plastic Main application areas: PVC profiles, pipes; wire and cable sheath rubber; PVC film (calender film) production, shoe manufacturing (such as PVC soles and decorative patches). Suitable for engineering plastic modification, PP, PE, PA, PC, etc. Application characteristics: Due to the hydrophobicity of the active nano-CaCO3 surface, it has good compatibility with the resin, can effectively improve or adjust the rigidity, toughness, smoothness and bending strength of the product; improve the processing performance and improve the rheological property and dimensional stability of the product. The heat-resistant stability has the functions of filling, reinforcing and toughening, and can replace some expensive fillers and aids, reduce the amount of resin, thereby reducing the production cost of the product and improving the market competitiveness. Nano-calcium carbonate has a spatial three-dimensional structure in rubber, and has good dispersibility and good semi-reinforcing effect. Applications: Natural rubber, nitrile, butyl benzene, rubber compound, etc., suitable for tires, hoses, tapes, oil seals, auto parts and other rubber products. Application characteristics: The nano-calcium carbonate after surface modification has good compatibility with rubber, and has the functions of reinforcing, filling, coloring, improving the addition process and products, and making the rubber easy to mix and disperse. After mixing, the rubber is soft and the rubber surface is smooth; the elongation, tensile strength and tear strength of the product can be improved substantially; the gelatinization rate can be reduced or partially replaced by expensive white powder such as titanium dioxide or white carbon black. Filler to improve the market competitiveness of products. Sealing adhesive material Applications: Silicone, polyflow, polyurethane, epoxy and other sealing structural adhesives. Application characteristics: It is applied to the sealing adhesive material and has good affinity with the rubber compound. It can accelerate the crosslinking reaction of the rubber, greatly improve the thixotropy of the system, enhance the dimensional stability, improve the mechanical properties of the rubber, and add Large amount, to achieve the dual role of filling and reinforcement. At the same time, it can make the surface of the rubber material bright and delicate. coating It can be used as a pigment filler, which has the advantages of fineness, uniformity, high whiteness and good optical performance. Nano-calcium carbonate has a steric effect. In the paint, it can suspend the Liede powder with a high density of formula and prevent sedimentation. effect. After the paint is painted, the whiteness of the paint film is increased, the gloss is high, and the hiding power is not lowered. This characteristic makes it widely used in the coating industry. Applications: Waterborne and oily coatings. Application characteristics: greatly improve the thixotropy of the system, can significantly improve the adhesion of the coating, scrub resistance, stain resistance, improve strength and surface finish, and has a good anti-settling effect. Partial replacement of titanium dioxide, reducing costs. Ink Applications: Suitable for lithographic offset inks, gravure inks, etc. Application characteristics: using the ink of nano calcium carbonate, the body and viscosity are better, so it has good printing performance; good stability; fast dryness and no opposite effect; because the particles are small, the printed products are smooth and the dots are complete. It can improve the finish of the ink and is suitable for high speed printing. The paper industry is the market with the most potential for development of nano calcium carbonate. Applications: Cigarette paper, recording paper, book printing paper, high whiteness coated paper, and high-grade sanitary napkins, disposable diapers, etc. Application characteristics: Adding nano-calcium carbonate in papermaking can improve the bulk density, apparent fineness and water absorption of paper; improve the strength and high-speed printing of special paper; adjust the burning speed of cigarette paper. other industry Nano-calcium carbonate is used in the feed industry as a calcium supplement to increase the calcium content of the feed. Used in cosmetics, due to its high purity, good whiteness and small particle size, it can partially replace titanium dioxide. Adding nano calcium carbonate to toothpaste can improve its extrusion performance. With the rapid development of China's rubber, plastics, paper, paint, ink and other industries, product quality and industry standards continue to improve, nano-calcium carbonate will be used in a large number of industries, replacing imported similar products. Second, the global nano calcium carbonate industry development review The world calcium carbonate industry has a history of more than 160 years. As early as 1850, the British company J&E Sturge began to produce precipitated CaCO3 from sodium carbonate and calcium chloride. After that, Japan made a series of progress in the technology of calcium carbonate modification. In 1909, Baishi Hengji invented the "carbon dioxide method" based on cheap limestone and other raw materials, opening up broad prospects for the production of precipitated calcium carbonate. In 1927, Baishi Henger developed the sodium stearate active calcium carbonate "Bai Yanhua", which greatly expanded the application field of precipitated calcium carbonate, and still sells well in the world filler market. From the 1930s to the 1990s, Japan continued to innovate in the development of ultra-fine active calcium carbonate. The size of calcium carbonate developed from 80 nm to 5 nm showed a trend of refinement, and the shape was from cubic to amorphous. The change, all this shows Japan's leading position in calcium carbonate technology. In recent years, with the advent of nanotechnology, calcium carbonate has entered the nano-era, and has driven the development of paper, plastics, rubber, high-grade coatings and other fields. At present, light calcium carbonate is basically eliminated in western developed countries, while the output of nano-sized calcium carbonate and active calcium continues to increase, and only 9 million tons/year of plastic use is used. Japan is still ahead of the international market in the development, production technology and application of new nano calcium carbonate products. Nowadays, there are amorphous calcium carbonate products such as amorphous, needle-shaped and spindle-shaped. Foreign nano calcium carbonate production and market are relatively mature, and large-scale industrial production has been formed. At present, the world's major manufacturers of calcium carbonate below 100nm are: ICI in the UK, Solvay in France, Mineral Technology (MTI) in the United States, Pfizer, Prince Paper, Resso Wces Casbec, and Whitestone in Japan. Japan Marubeni Calcium Co., Ltd., products are mainly used in rubber, plastics, adhesives (including sealants), paints, coated paper, inks, insecticides, wax products, enamel products and cosmetics. Japan is the best and earlier country to develop and produce nano-calcium carbonate internationally. It produced micron-sized and nano-scale calcium carbonate as early as the 1940s and 1950s. It has a spindle shape, a cubic shape, a chain lock shape, etc. More than 50 kinds of nano-scale calcium carbonate products and modified products; the United States focuses on the application of nano-calcium carbonate in papermaking and coatings; the UK is mainly engaged in the development of special nano-calcium carbonate for fillers. In the past 20 years, the United Kingdom has used calcium carbonate for automotive-specific plastics. It has a monopoly position. Third, the development of China's nano calcium carbonate industry China's nano calcium carbonate production started late, statistical results, China currently has more than 30 nano calcium carbonate production enterprises, mainly for Jiangxi Taihua, Enping Chemical, Orchid Science and Technology, Mengxi High-tech, Tongling Chemical, Shanghai Huaming, Chongqing Songshan, Beijing Chemical Construction, Shanda Technology, etc. Moreover, enterprises still have problems such as small production scale, backward process and equipment, unstable product quality, single variety, and poor economic benefits. Foreign nano-scale ultra-fine grade light calcium has formed large-scale industrial production. In 2013, China's nano-scale calcium carbonate production reached 1.47 million tons, an increase of 14.84%. From January to June 2014, China's nano calcium carbonate production reached 850,000 tons, an increase of 15.76% over the same period of the previous year. Fourth, China's nano calcium carbonate industry competition status At present, there are nearly 1,000 heavy calcium carbonate processing enterprises in China. From the perspective of industrial scale, its annual production capacity exceeds 100,000 tons. From the perspective of product structure, the product structure is relatively perfect, and at the same time, it can produce a certain degree of functionalization and refinement. product. The number of enterprises of this type only accounts for about 5% of the total number of enterprises, and its industrial scale accounts for 30% of domestic nano calcium carbonate enterprises. Moreover, domestic enterprises lack the vision of cooperation and development of industrial alliances, and the scale effect of enterprises cannot be reflected. China's "Twelfth Five-Year" development plan clearly requires: promote structural adjustment, accelerate product upgrading, promote deep processing of non-metallic minerals, develop specialized and functional varieties; increase industrial concentration, and encourage large-scale enterprise groups with superior backbone to reorganize In the form of integration, the upstream and downstream industries will be integrated, and the industrial chain will be extended to become stronger and bigger as soon as possible. Strict industry access, eliminate enterprises with high resource consumption, heavy environmental pollution, and do not meet the requirements of safe production, and promote industrial agglomeration and upgrading. V. Analysis of the future development prospects of China's nanometer calcium carbonate industry The earth's surface layer on which humans depend for survival is rich in limestone resources, and more than 90% of limestone is calcium carbonate. Calcium carbonate is an additive for composite materials. It starts with calcium carbonate and finally has no chemical structural changes. In theory, it does not cause artificial changes to the ecology. It is in line with the new trend of environmental protection in today's world. Therefore, the calcium carbonate industry is a “sunrise industry†for sustainable development in the 21st century. As a high-end product in the calcium carbonate series, nano-calcium carbonate will gradually replace ordinary calcium carbonate and has a good market prospect. In the next few years, the demand for nanometer calcium carbonate in China will increase by about 20% annually. With the expansion of China's nano calcium carbonate products, the improvement of quality and the reduction of cost, the market competitiveness of domestic nano-calcium carbonate has been improved. Now it can not only replace imports, but also begin to export to the international market. I believe that soon, China will become a major exporter of nano calcium carbonate. Since the industrialization speed of China's nano calcium carbonate products can't keep up, it limits its scope of use, and at the same time it shows that imports are on the rise. As China's requirements for the quality of rubber, plastics, paper, paint, ink and other industries continue to increase, the market for ordinary calcium carbonate will gradually shrink, and the ultra-fine calcium carbonate consumption market will grow rapidly. (Source: Viewing the world) Plastic Vase,Decorative Home Vase,Imitation Crystal Art Vase,Thicken The Broken Vase Taizhou Baiying Commdity Co., Ltd , https://www.baiyingplastics.com
China's nano calcium carbonate industry status and future investment prospects