Regarding materials at present, what is the development and future outlook of engineering plastics, and what is their current status?

Engineering plastics refer to industrial plastics used as materials for industrial parts or enclosures; they are plastics with excellent strength, impact resistance, heat resistance, hardness, and aging resistance. Current Development Status of China’s Engineering Plastics Industry Over the course of 10 years of development, China’s engineering plastics industry has achieved significant progress, and it has gradually established a complete industrial chain that includes capabilities in resin synthesis, plastic modification and alloying, as well as processing and application. This was stated by Yang Weicai, president of the China Engineering Plastics Industry Association, at the China Engineering Plastics Industry Association Summit held in Beijing on May 27. 　　10 years ago, China’s engineering plastics industry was in its infancy; its production capacity was far behind demand. Over 85% of the raw resin needed was imported, and more than half of the modified resin materials used were foreign products. Today, all engineering plastic resins in China can be produced domestically, with a polymerization capacity of around 600,000 tons per year; the annual production of modified resin materials also exceeds 2 million tons. Even those special engineering plastic resins that were previously subject to an export ban by foreign countries can now be manufactured in China, and a small amount of them can be exported. 　　Data from the China Engineering Plastics Industry Association show that over the past 10 years, the output value of China’s engineering plastics industry has grown by more than 20% on an average annual basis; enterprise sizes have continued to expand, and technological levels have improved steadily. Currently, there are already large-scale enterprises in the synthesis of engineering plastics, such as Zhonglan Group, Yuntianhua Group, Shenma Group, Yizheng Chemical Fiber, and Deyang Technology. Due to the particularly excellent properties of engineering plastics, significant attention has been paid to their technological development at the ** level; they have been included as key areas in high-tech initiatives within the ** medium- and long-term science and technology development plans. In this year's Ministry of Science and Technology Industry Support Program, 7 engineering plastic projects, including polycarbonates produced by non-phosgene methods, have been included. Furthermore, thanks to long-term efforts in technological research, China’s engineering plastic technology has developed rapidly; in terms of modified materials and resin alloys, the technology and quality standards of some products have now approached those of advanced foreign countries. The manufacturing technologies for some specialty engineering plastic products have reached the international advanced level. 　　Although China’s engineering plastics have made significant progress in synthesis and processing, overall, there remains the drawback of excessive production capacity being concentrated in products with relatively low technical complexity. Zheng Kai said that enterprises should take a long-term perspective, seize the opportunities presented by current key projects such as those related to large aircraft, improve their technological capabilities, accelerate the upgrading of their product portfolios, and thus promote faster and healthier development for China’s engineering plastics industry.