What material is the car fuse?

The bumper of a car is an accessory (consumable part) of the body part, which is located at the front of the car (called the front bumper) and the rear of the car (called the rear bumper).

At present, the front and rear bumpers of domestic automobiles are generally made of toughened (modified) polypropylene (PP) materials as raw materials for injection molding. Heat, density (0.90g/cm3), is the lightest one of general-purpose plastics, has high corrosion resistance (tensile strength 30MPa), and its products have relatively good strength, rigidity and transparency. The disadvantage is that the low temperature resistance is poor (it is a blended modified material composed of three kinds of impact-resistant PP copolymer, styrene-based elastomer and polyolefin-based rubber, with high rigidity, impact resistance, scratch resistance and paintability, injection molding After the formed bumper is installed, it will not be broken under the impact of 8 km/h, and has the elasticity of recovery, the performance is similar to that of PU, and the cost is reduced by 10 percent 20 percent ).