Modified plastics refer to plastic products that use filling, reinforcement, blending and other methods to process general plastics and engineering plastics to improve their mechanical properties, toughness, and flame retardancy. The modified plastic will have some of the strength properties of steel, as well as a series of advantages such as light weight, rich color, and easy molding. Therefore, the current trend of "replacement of steel with plastic" has emerged in many industries, and it is almost impossible to find a material that can replace plastic products on a large scale at this stage. Today, with the continuous development of plastic processing equipment and modification technology, my country's modified plastics industrial system has also been gradually improved. The development of my country's modified plastics industry presents three significant characteristics.
General plastic engineering. Modified plastics have excellent properties and have an irreplaceable position in many fields. However, there is one point that has to be faced. At present, modified plastics are not only much higher than general-purpose plastics in terms of market price, but also in terms of output. Far below the output of general plastics. This is still a comparison on the premise that modified plastics expand production equipment and reduce costs. In other words, with the development of modification equipment and the progress of modification technology, general-purpose plastics such as polypropylene PP, acrylonitrile-butadiene-styrene block copolymer abs, etc. have been modified to improve strength and heat resistance Such performance indicators have the characteristics of certain engineering plastics, but the price has a significant advantage, so it can seize the application market of some traditional engineering plastics.
High performance engineering plastics. With the development of my country’s industry, especially in the automotive, electronic and electrical, and machinery industries, people’s requirements for material performance have continued to increase. Therefore, the existing engineering plastics, such as polycarbonate PC, nylon PA, polyester PBT, PET, and polycarbonate PPO, etc., can no longer meet market requirements. As a result, developers have developed higher-performance engineering plastics. For example, the plastic used as the base of energy-saving lamps requires high temperature resistance and yellowing resistance, and the plastic used as chip tray requires resistance to flexure and static electricity, and the plastic requirements for electronic connectors. High flame retardant, high heat resistance, high fluidity, plastics used for mechanical gears require wear resistance, high rigidity, and high dimensional stability.
Special engineering plastics are cost-effective. Special engineering plastics refer to engineering plastics that can be used for a long time at a temperature above 150°C, such as special engineering plastics such as polyphenylene sulfide PPS, polyimide PIM, polyether ether ketone PEEK, and polysulfone PSF. Special engineering plastics generally have good electrical properties such as high temperature resistance and dimensional stability, and some also have good flame retardancy, radioactivity resistance, chemical resistance and mechanical properties. Therefore, they are widely used in high-tech , Military and aerospace, aviation and other industries. But one thing is that the market price of special engineering plastics is often several times the price of ordinary engineering plastics. They are still acceptable for military products. When used in civilian products, they need to maintain their high performance and have a relatively low price. .
The modified plastics industry is a typical industry that benefits from technological progress and consumption upgrades. Its downstream products are mostly concentrated in industries such as home appliances, automobiles, power tools, and toys. Relying on its cost advantages in labor and other production factors, my country has become a major manufacturing country in these fields, and this has promoted the development of the domestic modified plastics industry; consumption upgrades have brought my country's automobile, construction and other industries into a period of rapid growth. With the continuous improvement of people's requirements for material performance, my country is becoming the world's largest potential market for modified plastics and the main growth driver for demand. Professional modified plastics manufacturers meet the increasing demand through technological advancement, and there is broad room for development.