High-speed development of new energy vehicles | Broad space for plastic materials

In August of this year, China's new energy vehicle sales reached 101,000 units, up 49.5% year-on-year, higher than the 47.7% growth rate in July. By comparison, the entire automobile market sold 2.103 million units in August, down 3.8% year-on-year. As the leader in the plug-in market, BYD's new energy vehicle sales in August reached 22,000 units, a year-on-year increase of 85%, of which plug-in hybrid vehicles sold 11,000 units. BYD expects that with the capacity bottleneck eased, the second half of the new Energy vehicle sales will continue to climb and are expected to contribute considerable sales and revenue to the company.

New energy vehicles are the development trend of the automobile industry. According to statistics from relevant institutions, the number of new energy vehicles in China is over 1 million, and it is expected to exceed 5 million in 2020. The prospects for new energy vehicles will be very broad. Plastic materials With the advantage of performance, it plays an important role in promoting the lightweighting of new energy vehicles and the production of special parts.

The data shows that the automotive industry has become one of the fastest growing areas for plastics demand. According to market information agency Markets and Markets, the market value of global automotive plastics is expected to increase from US$21.616 billion in 2012 to US$46.12 billion in 2012. It is expected to increase from 7.1 million tons in 2012 to 11.3 million tons in 2018. The compound annual growth rate of demand during 2013-2018 will reach 13.4%. This is mainly due to the stable growth of global automobile production and the light weight of automobiles. The amount of modified plastic is increased.

Lightweight is an important factor that has always restricted the development of new energy vehicles. Due to the influence of power systems and market orientation, the development of lightweight energy of new energy vehicles has been receiving much attention. However, with the application of high-performance plastic materials in automobiles, new energy sources The problem of car lightweighting has been alleviated to some extent.

It is understood that the demand for resins such as nylon, polypropylene, polyurethane and other engineering plastics is very large, accounting for more than 30% of the total resin market demand; the demand for polyvinyl butyral is about More than 85% of total demand. Plastic bumpers, fuel tanks, body panels and chassis, engine intake manifolds, clutch actuators, and many other important components can be seen in plastic materials. Alloy material, experts say, plastic materials have unparalleled advantages.

Plastic products will help reduce the weight of the car. The data shows that for every 10% reduction in vehicle weight, fuel economy can be increased by 5%, so new energy vehicles using plastic products can run farther. Plastic products can also reduce the number of cars. Production costs, a simple injection molded plastic part can be used to weld many metal parts together. The plastic can be molded into a more complex shape than the steel assembly, reducing the number of parts used in the integration process.

In addition, the elastic deformation characteristics of plastic products absorb a large amount of collision energy, have a large buffering effect on strong impact, and have good protection for vehicles and passengers; plastics have strong corrosion resistance, local damage will not corrode, and steel Once the paint surface is damaged or the pre-corrosion is not good, it will easily rust and corrode, which will affect the appearance of the car body and pose a safety hazard; the plastic can be added according to the plastic composition of the plastic, by adding different fillers, plasticizers and The hardener produces the required properties of the plastic, the mechanical strength and processing properties of the modified plastic to meet the application requirements of different parts of the car.

It can be said that plastics have made rapid development of new energy vehicles, and the rapid development of new energy vehicles has opened up a vast market for plastics.