As an area that comes into direct contact with passengers, the materials of automobile door panel plastic parts must not only meet basic requirements such as beauty, durability, and comfort, but also meet environmental standards. Traditional plastic parts are often difficult to degrade after being discarded, which puts great pressure on the environment. Therefore, the development and application of environmentally friendly and recyclable materials has become an inevitable trend in the automotive industry.
Types of environmentally friendly and recyclable materials
Bio-based plastics: These materials are derived from renewable resources, such as plant starch, cellulose, etc., and are biodegradable. The use of bio-based plastics in door interior panels can be naturally decomposed by microbial action after the product life cycle, reducing pollution to the environment. However, the mechanical properties and heat resistance of bio-based plastics need to be further improved to meet the strict requirements of automotive parts.
Recycled plastics: Recycling waste plastics for reprocessing to make door interior panel materials is an effective way to achieve resource recycling. Recycling plastics not only reduces the cost of raw materials, but also reduces the environmental problems caused by landfill and incineration. Factors such as the purity and performance stability of recycled plastics may affect their application effect in new products, so strict classification, cleaning and modification are required.
Composite materials: Recycled plastics and other materials, such as natural fibers and mineral fillers, can be combined to give full play to their respective advantages and improve the overall performance of the material. For example, recycled polypropylene and natural hemp fibers can be combined to produce a door interior panel material that is both environmentally friendly and has a certain strength and rigidity.