First, understand Electric vehicle helmet The general standards of electric vehicle helmets can refer to motorcycle or riding helmets. The safety accidents are not clear, but the threats to personal safety are basically the same. The better the helmet quality, the stronger the natural protection effect.
Helmets produced by manufacturers of electric vehicle helmets basically release their protective effects by absorbing the impact force of collision. In short, the helmet's outer shell and inner foam cushion the impact of the collision on the skull. You know these two Electric vehicle helmet Is there any difference in the material of? The following section shows the comparison of raw materials used by electric vehicle helmet manufacturers.
Most electric vehicle helmets are made of EPS (expanded polystyrene) foam. Once the EPS foam is crushed and deformed in an accident, it cannot be recovered and can no longer absorb the impact of collision.
EPP (foamed polypropylene) foam can recover after impact, but its ability to absorb impact is not as good as EPS foam.
The following are the commonly used raw materials and characteristics of electric vehicle helmet manufacturers:
1. ABS engineering plastics ABS engineering plastics PC+ABS (engineering plastics alloy). In the chemical industry, the Chinese name is plastic alloy. The reason why it is called PC+ABS is that this raw material not only has the excellent heat resistance and weather resistance of PC resin, dimensional stability and impact resistance, but also has the excellent processing flow of ABS resin. Therefore, it can be used in thin-walled and complex shaped products to maintain its excellent functions and formability of plastic and ester components.
2. Glass fiber reinforced plastic (frp), namely glass fiber reinforced material, is a new composite material developed at the beginning of the 20th century. The earliest composite material is glass fiber reinforced plastic, which has nothing to do with steel. Glass fiber does not contain iron at all, nor is it a composite material of glass and steel. In fact, glass fiber is a composite material of glass fiber and one or more thermosetting or thermoplastic resins. The resins used include phenolic resin, epoxy resin, polyester resin, polyimide resin, etc.
3. Carbon fiber is a kind of fiber carbon raw material. Its strength is greater than that of steel, its density is less than that of aluminum, its corrosion resistance is better than that of stainless steel, its high temperature resistance is better than that of heat-resistant steel, and it can conduct electricity like copper. It is a new raw material with many valuable electrical, thermal and mechanical functions. The aircraft made of composite materials made of carbon fiber and plastic not only has light weight, but also consumes less power, has large thrust and low noise; Using carbon fiber to make computer disk can improve the storage and calculation speed of the computer; The use of carbon fiber reinforced plastics to manufacture world aircraft such as satellites and rockets has high mechanical strength and low quality, which can save a lot of fuel. The raw material of electric vehicle helmet shell is carbon fiber, which is the best, strongest, light and most technologically advanced, but the only thing is that the price is too expensive.
