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One of the important reforms in the automobile industry in many countries in the early 21st century is to increase the speed of automobiles and reduce energy consumption. The main countermeasure is to use more plastic parts to reduce the weight of the vehicle body. For this reason, the use of plastic parts in automobiles has grown rapidly. It is predicted that in 2013, half of all types of automobiles will be made of recyclable plastic composite materials.
At the beginning of the 21st century, the aerospace industry focused on technological progress in the aerospace industry to reduce the total weight of the aircraft in order to speed up flight and reduce energy consumption. For example, the Lockheed Airline Composite Center uses a new type of thermoplastic resin as the mother body of the reinforced composite aircraft, the precursor structure quality can be reduced by 40%, fasteners reduced by 73%. European countries have attached great importance to the use of high-performance new composite materials and advanced composite materials in aerospace development planning. They are used to fabricate cellular structure shells, body panels, and other structural components in space stations, satellites, and spacecraft.
Electronic and Electrical Industry At present, the structure of electronic and electrical products is developing in a short, small, light, and thin direction. It is in quantity and quality for high electromagnetic plastic alloys, superconducting plastics, electromagnetic shielding materials, optical performance materials, and high-performance composite materials. Aspects have put forward higher requirements. In addition, high-performance electric wires, cables, plastics for communications, optical fibers, plastics for new sensors, and various types of recording and storage materials used in information processing, electrostatic recording films for CAD, microfilms, etc., are demanded in the information society. Increasingly, these have greatly promoted the development of plastic materials.
In the packaging industry, people have higher requirements in terms of performance (high barrier, high heat resistance, freshness, sterility, etc.), and they also need to save raw materials and reduce energy consumption. Plastic packaging materials have more advantages than traditional packaging materials. Such as the production of the same specifications of the product, the paper's energy consumption is 3-5 times that of plastic, the release of carbon dioxide and nitrogen oxides in the production process are higher than plastic. At the beginning of the 21st century, plastic packaging materials will still be the main application areas for plastics.
Building materials industry Plastics are widely used in building materials industry. Comparing energy consumption from material production, such as PVC, the steel is 4.5 and the aluminum is 8.8. Compared with the energy-saving effect of the application, the plastic pipe can reduce the water transportation energy consumption by 5% compared with the metal pipe, and the plastic window can save the heating energy consumption by about 30% compared with the aluminum window. Thus, at the beginning of the 21st century, as the energy-saving materials for plastic building materials, the demand in many countries will continue to increase.
Agricultural functional mulch, new plastic greenhouse materials, high-performance fresh-keeping materials, plastic micro-spray irrigation systems, and large-scale functional composite impervious materials developed at the end of the 20th century will have greater demand as agricultural production and water-saving materials. Such as the application of horticulture micro-spray irrigation system, water-saving efficiency can reach more than 70%, thereby accelerating the application of plastic in agriculture.
Application of a wide range of plastic packaging
It is understood that with the development of the plastics industry, plastics have become an indispensable new material for technological transformation in the fields of automobiles, aerospace, electronics, electrical appliances, packaging, building materials, and agriculture, and for promoting technological progress and developing high-tech products.