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Polyether sulfone and polyether ether ketone are one of the main varieties of special engineering plastics. Polyester ether ketones that came out from 1960 to the early 1980s have been around for 20 years. Major European and American companies have invested a lot of manpower and financial resources to conduct research and development of special engineering plastics. Since the beginning of this century, international large-scale petrochemical companies have sought high-performance special engineering plastics cutting-edge technology and competed to enter this field and regard it as a magic weapon to enhance competitiveness. Therefore, the industry has designated special engineering plastics as the "pyramid tip" of the plastics industry. .
The research of China's special engineering plastics began in the early 1970s and started almost at the same time with the international community. It has been listed in the national key scientific and technological research projects of the "Seventh Five-Year Plan", "Eighth Five-Year Plan" and "Ninth Five-Year Plan" and the "863". plan. Prof. Wu Zhongwen from the Jungda Chemical Polymer Laboratory became one of the earliest special engineering plastics research experts involved in this field. After many years of unremitting efforts, Kyrgyzstan science and technology personnel led by Prof. Wu Zhongwen completed laboratory and pilot production of polyethersulfone resin, polyether ether ketone resin and polyether ether ketone ketone resin, and obtained a number of national invention patents. Make our country become the second country in the world after the United Kingdom with completely independent intellectual property rights. After approval by the Ministry of Science and Technology, Jida established the National “863†Program Special Engineering Plastics Research and Development Center under the leadership of Prof. Zhang Wanjin. After the approval of the Ministry of Education, the company established the engineering research of the Ministry of Education of the Ministry of Education under the leadership of Prof. Jiang Zhenhua. center. This is also the only two national R&D centers in China that focus on the research and development of special engineering plastics. So far, it has undertaken more than 40 national-level scientific research projects and obtained more than 30 national invention patents.
China's achievements have shocked the West. Soon, users and manufacturers in Western developed countries such as the United States, Britain, Germany, the Netherlands, and Japan all went to Changchun. In addition to the trial purchase of samples, more is to negotiate joint ventures and cooperation matters. However, it is understood that in fact, a considerable number of foreign investors are "who are not willing to drink wine." They are not unable to produce such products, but are worried that the Chinese will use price advantage to shake their monopoly status. Therefore, the conditions for joint ventures and cooperation are absolute control. It is not difficult to see that giants producing special engineering plastics abroad have established joint ventures and cooperation with China. Their real purpose is to monopolize the global market.
At present, Chinese Academy of Sciences, institutes of chemical engineering, and major universities all have a large number of research forces in the field of polymer science. The progress of laboratory research is not much different from that of foreign countries, but the progress from basic research to pilot and industrialization is There is a big difference from abroad. It takes only a few years or more than ten years for each breed from abroad to succeed in its development and industrialization. From the 1960s to the early 1980s, polyimides, polyetherimides, polysulfones, and polybutadienes were completed. A total of seven varieties of aromatic esters, polyphenylene sulfide, polyether sulfone, and polyether ether ketone have been used in the industrialization of special engineering plastics. In China, since the end of the 1960s, although all of the above 7 varieties have already completed laboratory studies, except for polyphenylene sulfide, which can be said to have achieved initial industrialization, other varieties are far apart.
Special engineering plastics refer to engineering plastics with better overall performance and long-term use temperature above 150 degrees Celsius. Including polyphenylene sulfide, polyether sulfone, polyimide, polyarylate, liquid crystal polymer, polyether ether ketone, fluoropolymer and so on. In the last century, special engineering plastics were listed as strategic materials, and foreign countries embargo on China. China has invested a lot of funds in research and development to meet the needs of domestic aerospace, advanced electronic equipment and defense industry.
Recently, Changchun Jida Special Plastics Engineering Research Co., Ltd. has two hundred-ton-grade polyethersulfone and polyetheretherketone resin production lines completed and put into operation in Changchun Hi-tech Zone. Apart from being pleased, the company's chief scientist, Professor Wu Zhongwen, is worried: In the past decade or so, Victrex's polyetheretherketone in the UK has been continuously growing at an average annual sales volume growth of 15%, and has monopolized the world market. At present, its polyetheretherketone resin Production Line has reached 2,300 tons/year after several expansions. Last year, it also set up a new production line of PEEK resin with a production capacity of 10,000 tons/year. It is expected that the capacity will reach 4,000 tons/year after completion. year. Due to its high heat-resistant grade, radiation resistance, corrosion resistance, fatigue resistance, high strength, wear resistance, and good electrical properties, PEEK has been used in aerospace, military defense, electronics, medical and health, and automobile manufacturing. It is widely used in home appliances and other fields and has become an indispensable key material. At present, in the international market, the price of PEEK is more than USD 100,000 per ton. 44 parts made of polyetheretherketone resin in the Audi A6 sedan of FAW-Volkswagen are manufactured by Victrex of the United Kingdom, and the purchase price is extremely high.