Because of the limitations of the performance of a single resin, people have higher and higher requirements for low-cost, high-performance and performance diversification of materials, and a variety of modified engineering plastics came into being. Engineering plastics can be completed by physical, chemical or a combination of physical and chemical methods, including blending (alloying), copolymerization (grafting) and filling reinforcement. The modification can significantly improve the performance of engineering plastics. In addition, it can make a polymer matrix produce products with different uses. The production operation flexibility is large, and it is easy to complete the multi-purpose of one machine, and complete the serialization and specialization of products.

The trend of engineering plastics modification is:

　　1. General plastic engineering. Thermoplastic general-purpose plastics have large output and low cost. In order to improve mechanical properties and heat resistance, high performance can be achieved by strengthening, filling and alloying, which can be replaced in certain occasionsengineering plasticAnd reduce costs together. In particular, PP Composites and alloys, because of their high cost performance, have become the most used plastic varieties in the automotive field.

　　2. High performance of general engineering plastic. Through copolymerization, CO mixing metallization and composite materials, the mechanical properties, heat resistance and durability of general engineering plastic have been greatly improved. It can be used instead of special engineering plastic in some occasions. In addition, after modification, giving engineering plastic magnetic, electrical, antibacterial and other properties is an important direction for high-performance in the future. Especially, with the sophistication of the preparation process of high-performance carbon fiber, carbon nanotube and graphene, the high-performance and multi-performance of engineering plastic are more promising.

　　3. Low cost of special engineering plastic. Because of the high market price, the use of special engineering plastic is often limited to military products, and the scale promotion of civil products can be completed only after the cost is reduced, and then the use scale and field can be expanded. The ways to reduce the cost are as follows: first, blending, alloying, filling and strengthening with general plastics and general engineering plastics; Second, the low-cost way of monomer source; Third, large-scale production.

　　4. Green raw materials, processes and products. With the enhancement of the whole society's awareness of environmental protection, engineering plastic prepared from renewable resources and green processes is the safe product that meets the public's expectations. The demand for degradable and reusable products is becoming more and more urgent. The future engineering plastic can not only be recycled, but also be green in raw materials and processes.

The trend of engineering plastic will be high performance and low cost. Some high-performance engineering plastics with high temperature resistance, wear resistance, conductivity and electromagnetic mask performance will be developed rapidly. In addition, during the planning and production of engineering plastic molecules, special attention will be paid to the concepts of environmental protection and reuse.

This article is from Jiangmen engineering plastic:http://m.feimandao.com/