Common materials for automotive interior plastic parts include PP, ABS, PC/ABS, PVC, POM, and environmentally friendly bamboo fiber materials. These materials are widely used due to their performance and cost advantages.
Depending on function and location requirements, different materials have specific uses:
Polypropylene (PP): The most widely used material, found in door panels, dashboard frames, storage compartments, etc. It has chemical resistance, high toughness, and low cost. Modified PP, such as PP/EPDM+T20, is often used in dashboards to improve impact resistance.
ABS (Acrylonitrile-Butadiene-Styrene Copolymer): Used in dashboards, switch panels, door handles, etc. It features high gloss, easy processing, and excellent dimensional stability.
PC/ABS Alloy: Combines the strength of polycarbonate with the processability of ABS, suitable for areas with high heat resistance and impact resistance requirements, such as dashboards and center consoles.
Polyvinyl chloride (PVC): Highly flexible, commonly used for seat surfaces, steering wheel covers, and carpet substrates. Some are made into a soft foam layer using slush molding to improve tactile feel.
Polyoxymethylene (POM): High hardness and wear resistance, widely used in frequently operated small structural components such as air conditioning control knobs, window regulator handles, and seatbelt buckles.
New environmentally friendly materials: For example, the bamboo fiber composite material used by Wuling has been widely applied to headliners and tailgate trim panels, achieving lightweighting and carbon reduction. Each ton of material reduces carbon emissions by approximately 26,000 grams and offers the health advantage of near-zero formaldehyde release.
