Automotive interior plastic parts are not only a space for users to complete driving tasks, but also a carrier to achieve user expectations, carrying advanced emotional needs such as taste, identity, and hobby.
Nowadays, the number of vehicles in our country is increasing, and the development of the automobile industry is also growing. Under the trend of small and lightweight automobile manufacturing, engineering plastics are also more and more applied to the manufacturing process of automobiles, which has effectively improved the production of automobiles. The craftsmanship and performance of the car.
Among the types of automotive materials, metal and plastic composite materials will become more and more popular. It combines the dual advantages of metal materials and plastic materials, which can improve the overall manufacturing level of the interior and exterior of the car.
For safety, environmental protection, and comfort considerations, interior materials are generally required to have the following characteristics: good strength and stiffness, ability to withstand a certain impact load; good dimensional stability, especially high-temperature stability; good Ultraviolet and weather-resistant to ensure a service life of more than 10 years; good solvent resistance; low odor; matte finish.
In general, low odor and matte properties are especially important for interior materials under the premise of satisfying basic mechanical and thermal properties. This is because automotive interior plastic parts have been in a relatively closed environment for a long time. Under certain temperature conditions, small molecular organic compounds in plastics can easily migrate to the surface of plastic products and volatilize out, causing harm to the human body.
In addition, if the mattress of the interior materials is not good, it is easy to cause strong reflected light in the cab, which not only affects the driver's vision but also easily causes discomfort and fatigue, thus leading to traffic accidents. For this reason, automakers are extra cautious when choosing interior materials.
From the perspective of the types of interior materials, the current instrument panels are mostly made of PP, ABS, ABS+PC, or SMA+GF and other materials, and the door inner panels are mostly made of PP, PP+EPDM, ABS, or PC/ABS and other materials. The handle and glove box are made of ABS, PC/ABS, or PP and other materials, and the air outlet of the air conditioner is generally made of ABS, PC/ABS, or PA/ABS.
The most colorful part of a car is the interior, because the appearance of the car is for others to see, and what people enjoy is the interior of the car, which emphasizes touch, feel, comfort and visibility.
Automotive interior plastic parts include compartment partitions, door trim panels, instrument panels, handrails, carpets, door handles, decorative strips, etc. ABS, alloy, and PP are the most commonly used interior plastics in automobiles. PP includes PP long glass fiber, PP EPDM 20%MD, PP Talc, and other materials, which are widely used in interior pillar trims, instrument panels, etc. Frame, glove box cover, etc.; ABS has different heat-resistant grades, electroplating grade, spray-free low gloss, mainly used indoor armrests, cup holders, electroplating trims, etc.; PC/ABS is also mainly divided into PC/ABS with different heat-resistant grades, including electroplating and spray-free PC/ABS, are mainly used in instrument panel skeleton, door panel skeleton, air conditioner outlet panel and other components.
These are several common plastics for automotive interior plastic parts and their applications. Considering the current air quality problems in the car, the development of low-emission interior plastics must be one of the trends in the development of automotive interior plastic parts.