China's modified plastics industry system has been gradually improved
- time:
- 2019-05-13
Modified plastics refer to plastics products that use filling, reinforcing and blending methods to process general plastics and engineering plastics in order to improve their mechanical properties, toughness and flame retardancy. Modified plastics will have some strength properties of steel, but also have a series of advantages, such as light weight, rich color, easy forming and so on. So at present, the trend of replacing steel with plastic has appeared in many industries, and it is almost impossible to find a large-scale material to replace plastic products at this stage. Today, with the development and maturity of plastic processing equipment and modification technology, China's modified plastic industry system has been gradually improved. The development of modified plastics industry in China presents three distinct characteristics.
Engineering of general plastics. Modified plastics have excellent properties and irreplaceable status in many fields, but there is a point that we have to face. At present, the price of modified plastics is far higher than that of general plastics in terms of market price, and its output is far lower than that of general plastics. This is also a comparison under the premise of expanding the production facilities of modified plastics and reducing the cost. That is to say, with the development of modification equipment and the progress of modification technology, general plastics such as polypropylene (PP) and acrylonitrile-butadiene-styrene block copolymer (ABS) have improved their strength and heat resistance through modification, and have the characteristics of some engineering plastics, but the price has significant advantages, so they can seize the application market of some traditional engineering plastics. 。
High performance engineering plastics. With the development of China's industry, especially in the automotive, electronic, electrical and mechanical industries, people begin to improve the performance requirements of materials. Therefore, the existing engineering plastics, such as polycarbonate (PC), nylon (PA), polyester (PBT and PET), polyphenyl ether (PPO), can no longer meet the market requirements. As a result, developers need to develop engineering plastics with higher performance, such as high temperature resistance and yellowing resistance for plastics used as energy-saving lamp base, flexibility resistance and antistatic for plastics used as chip pallets, high flame retardant, high heat resistance and high flow for plastics used as electronic connectors, and abrasion resistance, high rigidity and high dimensional stability for plastics used as mechanical gears.
Special engineering plastics are low-cost. Special engineering plastics refer to engineering plastics that can be used for a long time under conditions above 150 C, such as polyphenylene sulfide (PPS), polyimide (PIM), polyether ether ketone (PEEK), polysulfone (PSF) and other special engineering plastics. Special engineering plastics generally have good electrical properties, high temperature resistance and dimensional stability, and some also have good flame retardancy, radioactivity resistance, chemical resistance and mechanical properties. Therefore, it is widely used in high-tech, military, aerospace, aviation and other industries. But one thing is that the market price of special engineering plastics is often several times that of ordinary engineering plastics. It is acceptable in military products. For civil products, it is necessary to maintain its high performance and relatively low price.
Modified plastics industry is a typical industry benefiting from technological progress and consumption upgrading. Its downstream products are mostly concentrated in household appliances, automobiles, electric tools and toys. With the cost advantage of labor force and other factors of production, China has become a big manufacturing country in these fields, and has promoted the development of domestic modified plastics industry. The consumption upgrading has brought China's automobile and construction industries into a period of rapid growth. With the continuous improvement of people's requirements for material properties, China is becoming a potential market and main part of the global modified plastics industry. The demand for growth power, and professional modified plastics manufacturers through technological progress to meet the growing demand, development space is broad.
