“Recently, domestic demand for long-chain carbon nylon has grown rapidly. Most of them need to be imported. Although nylon 1212 is produced in China but cannot meet demand, we are stepping up project construction.†Chief Engineer of Shandong Guangsheng New Material Co., Ltd. Yongmin told reporters recently.
Long-chain nylon is a high-performance engineering plastic. Due to its outstanding weather resistance, low temperature flexibility and corrosion resistance, it is widely used in automobiles, communications, machinery, electronic appliances, textile, aerospace, military, Sporting goods and other fields are the key research and development directions in the nylon industry at home and abroad.
Zheng Jian, secretary-general of the China Engineering Plastics Association, said that long carbon chain nylons mainly include nylon 11, nylon 12, nylon 1212, nylon 1012, and nylon 1313. Long-chain nylon has excellent performance, low water absorption, good low-temperature resistance, dimensional stability, high strength, good toughness, wear-resisting and shock-absorbing, etc. It can be used to make textile fibers, shock-resistant wear-resistant tubing, hoses, and cable and wire protection. Sets, various mechanical parts such as bearings, gears and other precision electrical components and automotive filters, bumpers, brake handles, accelerator control sleeves, etc., can also be used for advanced coatings and adhesives.
Due to the rapid development of China's automotive, electronics, machinery and other industries, the demand for long carbon chain nylon is increasing. Among them, the automotive industry has the largest demand, which accounts for about 50% of the market share. It is mainly used for manufacturing oil pipelines and clutch hoses, replacing the original copper pipes, and reducing oil leakage and fire caused by collision wear between metal pipes. The hidden danger not only improves the safety of the car, but also reduces the quality of the car and saves energy consumption. In addition, due to outstanding water resistance and weather resistance of double-number long carbon chain nylon, it can be used for submarine cable and floating cable cladding materials. With the development of marine engineering in China during the “Twelfth Five-Year Plan†period, the usage of this part will increase rapidly. .
In view of the irreplaceable role of long carbon chain nylon in the national key areas, it belongs to the new material industry in the country's strategic emerging industries. The National Development and Reform Commission, the Ministry of Industry and Information Technology, and the Ministry of Science and Technology have listed long high performance nylon as one of the key support development projects. Among them, the development and industrialization of high temperature resistant nylon and long carbon chain nylon projects are mainly based.
Imports monopoly market
Although the application prospects are very attractive, the production of long carbon chain nylon is almost blank in the country. More than 10,000 tons of demand per year are monopolized by imported materials.
According to Fang Yongmin, the international production of long-chain carbon nylon began in the 50s of the last century. Ato Chemical Company of France first realized the industrial production of nylon 11. However, nylon 11 is mostly used in high-end applications due to the complex route of the synthesis process, the harsh production conditions, the large number of synthesis steps, and the high cost. At present, only a few companies in countries such as France, Germany, the United States, and Japan are producing internationally. The output of nylon 11 and nylon 12 in the world is more than 150,000 tons, accounting for about 10% of the total nylon production. Nylon 1212 was first studied by DuPont in 1988. DuPont uses butadiene as the starting material to synthesize dodecadicarboxylic acid. Due to the long production process and the high cost, DuPont finally gave up its industrialization efforts.
The research and development of long carbon chain nylon in China began in the 1950s. The Institute of Technology of the Second Industrial Bureau of Harbin, Zhengzhou University and other units have successively carried out small-scale experimental research on nylon 11, and some research institutes and chemical plants have also engaged in This research and pilot test, but because the raw material and process problems are not well resolved, China's nylon 11 has not been realized industrialization. Zibo Guangtong Chemical Co., Ltd. achieved industrialization of nylon 1212 in 1998, but its annual production capacity was only a few hundred tons.
Zheng Zhen told reporters that according to relevant statistics, China consumes a large amount of foreign exchange long-chain carbon nylon annually. The import volume of nylon 11 and nylon 12 reaches 10,000 tons, and the price per ton is between 100,000 and 140,000 yuan.
New energy brings new volume
With the advent of the era of energy crisis, countries around the world will use solar energy as one of the key areas for development and utilization. Because of its many advantages, such as high and low temperature resistance, long carbon chain nylons can adapt to harsh natural environments such as cold and heat, and become the main materials for solar foils. It is estimated that there will be 1.5 billion to 3 billion square meters of demand in 2011, from which it is estimated that 100,000 to 200,000 tons of long carbon chain nylon will be used in this field.
Fang Yongmin told reporters that the use of long-chain carbon nylon in the domestic market has seen rapid increase in the use of solar foil. This trend began in the second half of last year. The nuclear accident caused by the Great Japan Earthquake in March this year triggered a worldwide cautious mood for nuclear energy investment. It also enabled the development of photovoltaic power generation to be further expanded. The growth trend of the use of long-chain carbon nylon has become more apparent and has become a long one. Carbon chain nylon is another big new application direction.
In the deserted sparsely populated desert areas of the western United States, a large number of solar power generation devices use long carbon chain nylon as a solar foil. This is mainly due to the good weather resistance and long-term UV resistance of the long carbon chain nylon, which can withstand high temperatures, low temperatures, drying, and sunlight. Exposure and other harsh weather conditions have a long service life, do not require frequent maintenance and replacement, and greatly reduce maintenance costs.
Shandong Guangsheng New Material Co., Ltd. invested 0.8 billion yuan in Zibo High-tech Zone, a project with an annual output of 10,000 tons of long-chain nylon resin project is expected to put into operation in October 2011. The second phase of the design annual production capacity of 20,000 tons, the third phase of the design annual production capacity of 30,000 tons. The company has 7 invention patents. The project can produce nylon 1212, nylon 1012, nylon 1313, nylon 1414 and other nylon resins. The production cost and product price have a competitive advantage. After the project is put into production, it will greatly increase the production and application level of long carbon chain nylon in China and break the situation where imported products dominate the world.
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