Chemical experts call on China's polyolefin industry to accelerate self-sufficiency
2021-04-08 14:03:44
The reporter recently learned from the China Petroleum and Chemical Industry Association that in the past 10 years, China’s polyolefin catalyst technology has made considerable progress. The localization rate of Ziegler-Natta catalyst has reached 90%, and the output of polyolefin resin has exceeded 10 million tons, ranking the world’s largest. Two people. However, the current domestic output can only meet the domestic demand of 55.6%, the technical foundation is relatively weak, the development capability of high-performance product brands is not strong, with independent intellectual property rights of polyolefin technology, and urgent need to in-depth research and development.
Polyolefins are the most productive and widely used polymer materials in synthetic resins. In recent years, the development of international polyolefin technology has been rapid. New products and new technologies have emerged continuously. New high-performance polyolefin products have entered a large number of high-end applications such as automobiles, electronics, electrical appliances and building materials, and it has become China Petroleum and Sinopec The main business of chemical industry. These two major oil companies also inevitably put more emphasis on the enhancement of synthetic technology and product specialization and functionalization as the next key development targets for polyolefin resins. The catalyst is the core of the polyolefin. In the past 20 years, Ziegler-Natta catalysts for olefin polymerization have achieved rapid development and have become a new discipline in polymer science.
According to Wu Haijun, director of the Sinopec Chemical Industry Department and manager of the China Petrochemical Chemicals Sales Branch, PetroChina and Sinopec account for approximately 58% of China's five major resin production capacities. Compared with foreign and private enterprises, in the five general-purpose resins, the advantages of the two major groups are polyolefins. During the "Eleventh Five-Year Plan" period, Sinopec will continue to regard polyolefin as one of its main businesses, promote its technological transformation, enhance its overall competitiveness, and achieve product specialization and functionalization. Among them, polyethylene focuses on the production of pressure-resistant pipes, cables, large hollow products and other special materials. Polypropylene focuses on increasing the production of transparent edible packaging, elastic casting, and low heat sealing and high tearing. At the same time, to achieve the scale of polyolefin production, continue to phase out or split the restructuring and other measures, so that small-scale, high-energy intermittent liquid phase bulk polypropylene process gradually withdrawn.
However, with the rapid increase of polyolefin production capacity and the continuous increase in market demand, especially the demand for high-performance polyolefin products, the contradiction between the main business and the demand and status quo of polyolefin catalyst technology and high-performance polyolefin products has become increasingly prominent.
Li Yongwu, president of the China Petroleum and Chemical Industry Association, told the reporter that although China's polyolefin industry has a certain foundation, the overall technical level is still far from the international advanced level, and quite a few high-end products need to be imported. At present, China's polyolefin imports have exceeded 30% of global trade volume. The structure of China's polyolefin products is irrational, with medium and low-end products in common, lack of special materials, and inadequate core technologies are the outstanding problems faced by the domestic polyolefin industry. Therefore, accelerating independent innovation and improving product quality is the key to the competitiveness and sustainable development of China's polyolefin industry.
At the recent 288th academic meeting of the Xiangshan Science Conference with the theme of “Polyolefin Technology Development and Opportunities in Chinaâ€, participating experts at home and abroad believed that in recent years, due to market competition and the cooperation and restructuring of multinational companies. The impact of the new generation of catalysts on the petrochemical industry has created a new wave of shocks and is gradually spreading to the global petrochemical industry. This shock wave will bring new crisis to the existing polyolefin industry, but it will also bring new opportunities.
Relevant experts suggest that in the next 10 years, the Chinese scientific and technological communities and the business community should pay attention to and develop the following aspects: new polyolefin catalysts, especially for the research and development and practical use of catalysts for copolymerization and functionalization of polyolefins; Metallocene-based and single-site catalysts for the catalytic polymerization of olefins and their random copolymers and block copolymers; phase separation, crystallization of polyolefin blends and structural control in non-equilibrium states and their corresponding morphology, properties and lifetime; Research and development of functionalized polyolefins and high-performance polyolefin materials; high-performance and engineering of multiphase and multi-component polyolefin materials (universal materials), focusing on the development of alloy technology in polyolefin kettles, forming thermoplastic polyolefin kettles Inner alloy series products provide high-performance, low-cost, recycled environmentally friendly polymer materials for the automotive industry and agriculture.
Polyolefins are the most productive and widely used polymer materials in synthetic resins. In recent years, the development of international polyolefin technology has been rapid. New products and new technologies have emerged continuously. New high-performance polyolefin products have entered a large number of high-end applications such as automobiles, electronics, electrical appliances and building materials, and it has become China Petroleum and Sinopec The main business of chemical industry. These two major oil companies also inevitably put more emphasis on the enhancement of synthetic technology and product specialization and functionalization as the next key development targets for polyolefin resins. The catalyst is the core of the polyolefin. In the past 20 years, Ziegler-Natta catalysts for olefin polymerization have achieved rapid development and have become a new discipline in polymer science.
According to Wu Haijun, director of the Sinopec Chemical Industry Department and manager of the China Petrochemical Chemicals Sales Branch, PetroChina and Sinopec account for approximately 58% of China's five major resin production capacities. Compared with foreign and private enterprises, in the five general-purpose resins, the advantages of the two major groups are polyolefins. During the "Eleventh Five-Year Plan" period, Sinopec will continue to regard polyolefin as one of its main businesses, promote its technological transformation, enhance its overall competitiveness, and achieve product specialization and functionalization. Among them, polyethylene focuses on the production of pressure-resistant pipes, cables, large hollow products and other special materials. Polypropylene focuses on increasing the production of transparent edible packaging, elastic casting, and low heat sealing and high tearing. At the same time, to achieve the scale of polyolefin production, continue to phase out or split the restructuring and other measures, so that small-scale, high-energy intermittent liquid phase bulk polypropylene process gradually withdrawn.
However, with the rapid increase of polyolefin production capacity and the continuous increase in market demand, especially the demand for high-performance polyolefin products, the contradiction between the main business and the demand and status quo of polyolefin catalyst technology and high-performance polyolefin products has become increasingly prominent.
Li Yongwu, president of the China Petroleum and Chemical Industry Association, told the reporter that although China's polyolefin industry has a certain foundation, the overall technical level is still far from the international advanced level, and quite a few high-end products need to be imported. At present, China's polyolefin imports have exceeded 30% of global trade volume. The structure of China's polyolefin products is irrational, with medium and low-end products in common, lack of special materials, and inadequate core technologies are the outstanding problems faced by the domestic polyolefin industry. Therefore, accelerating independent innovation and improving product quality is the key to the competitiveness and sustainable development of China's polyolefin industry.
At the recent 288th academic meeting of the Xiangshan Science Conference with the theme of “Polyolefin Technology Development and Opportunities in Chinaâ€, participating experts at home and abroad believed that in recent years, due to market competition and the cooperation and restructuring of multinational companies. The impact of the new generation of catalysts on the petrochemical industry has created a new wave of shocks and is gradually spreading to the global petrochemical industry. This shock wave will bring new crisis to the existing polyolefin industry, but it will also bring new opportunities.
Relevant experts suggest that in the next 10 years, the Chinese scientific and technological communities and the business community should pay attention to and develop the following aspects: new polyolefin catalysts, especially for the research and development and practical use of catalysts for copolymerization and functionalization of polyolefins; Metallocene-based and single-site catalysts for the catalytic polymerization of olefins and their random copolymers and block copolymers; phase separation, crystallization of polyolefin blends and structural control in non-equilibrium states and their corresponding morphology, properties and lifetime; Research and development of functionalized polyolefins and high-performance polyolefin materials; high-performance and engineering of multiphase and multi-component polyolefin materials (universal materials), focusing on the development of alloy technology in polyolefin kettles, forming thermoplastic polyolefin kettles Inner alloy series products provide high-performance, low-cost, recycled environmentally friendly polymer materials for the automotive industry and agriculture.
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