Recent development of the new black

In recent years, the carbon black industry trends based on statistics, the consumption of carbon black rubber with carbon black accounts for 89.5 percent of the total consumption, which accounts for 67.5% of the tire, the car used rubber accounted for 9.5 percent, with other rubber products accounted for 12.5 percent. Non-rubber with carbon black (also known as a dedicated special carbon black or carbon black) accounted for only 10.5 percent. Non-rubber with carbon black as a coloring agent, UV shielding agent, anti-static agent or agents are widely used in conductive plastics, ink, paint and dry, and many other products in the industry.

In recent years, the rapid development of China's automobile industry, the demand for rubber tires so that the rapid growth in demand for carbon black production and also the rapid development. 1999 to 2003, China's carbon black production by 600,000 t to 1.02 million t (ranked second in the world), the apparent consumption by 650,000 t to 1.09 million t, production and consumption of the average annual growth rate of all Reached 13.5 percent. In recent years, China's carbon black industry has achieved significant growth and significant scientific and technological achievements, but with the advanced level in terms of variety, quality, production technology and applications in areas such as the level of technology, business and most of the world's advanced level There is still a gap compared. Foreign development of foreign varieties of carbon black in the generation of carbon black, micro-structure of the surface and the nature of the reinforcement and application of the mechanism of deepening the study on the basis of newly developed products are emerging, characterized by energy saving, environmental protection, And a dedicated high-function, manufacturers generally do not publish their physical and chemical indicators and the only application of its performance, not applied for inclusion in the ASTM standards. Concrete can be divided into the following categories:

1. Low rolling resistance and high-performance tire with carbon black low rolling resistance tires, or "green tire" is the tire development. "Green tire" both tire wear, travel security (mainly anti-slippery) and low rolling resistance. In the use of conventional varieties of carbon black reinforcement of the tread rubber, which can be personalized 3 is contradictory ; And low rolling resistance of carbon black (also known as low hysteresis carbon black) can reduce tire rolling resistance and heat at the same time, maintain good wear resistance and anti-slippery. Degussa has developed a "nano-structured carbon black" or "anti-black" (Inversion Black), which is characterized by improving the surface of nano-structured carbon black, carbon black rubber a change in the lagging performance; U.S. Cabot Corporation has developed a "two-phase carbon black," also known as ECOBLACK (environmental carbon black), characterized by carbon black in the aggregate, in the nano-scale mosaic of a small amount of silicon dioxide, which can have both tires using white charcoal And the low rolling resistance, but also has good use when they wear black and anti-slippery, developed CRX1346, CRX1420, VULCAN1345 high VULCAN 1436 and reinforced, high wear resistance and good control of high - Performance of carbon black varieties, can be used in ultra-high mileage tire, the tire-class high-speed car tires and tires, and other specialty products.

2. High-purity carbon black Cabot Corporation and Degussa were developed high-purity, 45 μm sieve over a small special content, goods and PUREX called SPHERON A high-purity carbon black series of new varieties. This high purity carbon black, synthetic fiber not only apply to the coloring can be significantly improved high-voltage cable jacket, rubber products, such as oil service life, improved rubber, plastics and the appearance of the gas-tight, as well as improve the paint coating on the surface Smooth finish.

3. Industry-specific carbon black rubber Cabot developed STERING and SPHERON two series of black-specific varieties, to be applied to each door and window seals, wipers, air-conditioning pipes, oil seals, belts, seals and other functions Automotive rubber products. In addition, the company has also developed REGAL 85 specific tire inner liner of carbon black varieties, can significantly improve the air tightness of the tire.

4. Pigment of New Varieties of Cabot's carbon black BLACKPEARLS named to the pigment carbon black family, that there are 27 varieties in recent years has added BLACKPEARLS 3030-4840 named the 10 varieties, in addition to a different black and Hue, also have different functions, to be applied to each particular smooth plastic film, cable insulation jacket, food contact plastics, as well as the fine denier fiber, electronics products such as the use of shading.

Japan in the East China Sea, developed the carbon filter used in liquid crystal displays black-black film dedicated to meet the shade of excellent, smooth surface, thin film, the special requirements of low conductivity.

5. Conductive carbon black of New Varieties of Cabot VULCAN XC in the name of conductive carbon black, only 2 of the original species in recent years has increased the electrical conductivity, dispersion, smooth, easy off for high-voltage cable shielding The XC200 and material XC500, apply anti-static plastic film products or the XC305 and XC605 4 varieties. 6. Grafting new varieties of modified carbon black and carbon black graft and the new modified varieties can be improved in the carbon black dispersion in the polymer, composite materials in order to give a better performance. For example, using a graft of black plastic composite has a positive temperature coefficient of resistance, and can heat the walls, buildings used for indoor heat, can make uniform temperature and electrical energy savings.

Development of the domestic carbon black varieties

1. Radial tire with a new technology of carbon black varieties. In recent years, China's rapid development of the radial tire production. Radial tire requires a better performance, quality and stability of the wet granulation of the new technology of carbon black varieties. Such as the N115, N121, N234, N375, N326, N330, N550, N660, and so on, as a result of the new 10,000-ton carbon black production process technology, the promotion of universal, the current million-ton production of wet granulation device products, has more than 70% , To meet the basic radial tire production development.

2. Lag low-carbon black oak group in carbon black industry research and design institute (CCBI) has developed a series of DZ low hysteresis carbon black production technology and the completion of the first set behind a low carbon black plant industrialization. The representative of the species for the DZ-13, filled rubber DZ-13 of the heat than conventional low-carbon black by 15% -25%, made of the radial tire with low rolling resistance, low heat, low fuel consumption and tire durability and resistance Grinding of significant advantages to increase, reaching the level of similar foreign products. DZ-13 in the application of bias tires, bias ply truck tires can be solved high heat, heat the difficult issues so as to enhance the bias truck tires at high speed when the use of performance set. DZ series low hysteresis carbon black for the future development of "green tire" laid a good foundation.

3. Conductive carbon black conductive carbon black has a density and low cost, easily dispersed in the polymer and easy processing, but also by selecting different varieties, and the amount of filling process, in a certain range of different electrical conductivity and many other Advantages of conducting polymer materials become the most important of conductive filler. CCBI has successfully developed a series of conductive carbon black products, and built a large-scale production of the device. Its products are widely used in transport with anti-static, conductive rubber roller, anti-static plastic, cable shielding materials, lithium battery electrode materials, conductive coating, anti-static boxes, such as working capital.

4. Melanin pigment carbon black mainly used as ink, paint, chemical fiber, leather, copier toner, such as the colorant, plastics (including fiber optic cables), coloring agents or UV shielding agent. There are many domestic enterprises to adopt black or mixed gas Oil production of carbon black pigment, but also to the Oil Law was modified to address carbon black products, but can not fully meet domestic demand. CCBI end to the plastics industry R & D CM, 103, R3, and so 10 silica-specific varieties of plastic, printing ink, paint industry research and development of the Q Series easy to spread new varieties of carbon black.

China's development of new varieties of carbon black in China's proposal to develop new varieties of carbon black has made encouraging progress, but from the needs of the market, compared with similar foreign products, there is still a gap. To this end the following development proposals.

In strengthening the tire manufacturer, the production of carbon black and carbon black business research cooperation on the basis of the continuous optimization of China-made low lag the performance of carbon black, and actively promote the use of. Active research and development of new varieties of high-performance carbon black, to improve application performance tires. To improve the process, improve the equipment on the basis of the research and development of new varieties of high-purity carbon black, and the establishment of the industrial production of devices to meet the colored fiber, high-voltage cable jacket, rubber oil seals, plastics and other products need to meet to improve Processing technology to improve surface finish, such as the use of airtight performance. According to market demand, research and development of conductive carbon black, carbon black pigment of the new varieties in its electrical conductivity, and in areas such as sex and more in line with the needs of users.