The "Technical Roadmap for Energy-saving and New Energy Vehicle Development" pointed out that in 2020, 2025, and 2030, the weight of a bicycle needs to be reduced by 10%, 20%, and 35% respectively compared with 2015.

The intensity of the implementation has made many companies feel pressured, especially the new energy vehicles that represent "clean energy", which will inevitably take the lead.

The advantages of automotive plastics do not need to be repeated, but it must be realized that consumers still have resistance to the safety of automotive plastics. For example, automobile manufacturers using plastic tailgates, Nissan, Volvo and other companies rarely promote its effects.

In addition, the epidemic has also caused consumers to pay more attention to the health and safety of automobiles. According to the weight of different interior parts, the parts that contribute the most to the xylene content in the air in the car are the surface sprayed dashboard cover, followed by the column guard and the foot pad. It is imperative to reduce the VOC of plastic parts.

Driven by the dual factors of energy saving and environmental protection, China's automobile manufacturing industry has basically achieved plasticization in the field of interior decoration. On the new development route, the mainstream idea of ​​automobile lightweight is to further plasticize the outer cover. For example, the previously rare plastic engine cover and plastic front fender have been adopted.

Combining lightweight and safety requirements, plastic engine covers are an excellent new development area. This is because the plastic engine cover can effectively reduce head injuries due to pedestrian protection requirements. In the face of greater energy collisions, the use of plastic hoods can also effectively alleviate the overall rearward movement of the hood, breaking the front windshield, and causing injury to the occupants in the car.

The same problem is solved. The bending channel design of the inner plate used in the metal hood has complicated stamping process and high cost. Nowadays, plastic engine covers have been used in a small range on some new energy vehicles.

Lightweight and safety are a mutual game process. Therefore, the passenger area located in the middle is more cautious in the use of lightweight. Judging from the existing attempts, it is not very ideal.

For example, the multiple broken shaft events of Ideal ONE, although there is no evidence that it is directly related to the material of the lower swing arm, the ball pin placed on this structure has clearly been replaced.

However, according to the needs of lightweight development, after the plasticization of the front and rear collapse energy-absorbing areas, the central passenger area will inevitably make a contribution. According to the latest technology display, battery packs will be a hot spot in the future.

For example, Durethan BKV45FN04 developed by LANXESS has 45% by weight of glass fiber reinforced material, and has tracking resistance under high voltage, and is suitable for components such as battery frames, end plates and high-voltage connectors.

It should be noted that nowadays, spontaneous combustion incidents of electric vehicles are frequent, and fire protection requirements are prominent. Among them, products with flame-retardant characteristics will play a major role in the field of new energy. In addition to Durethan BKV45FN04, for example, Ultramid flame-retardant products launched by BASF also performed well. Including C3U, A2X2G5, A3X2G5, A3X2G7, A3X2G10, B3UG4 and KR4365G5, it can be applied to electrical components that require high fire safety and tracking resistance.