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Analysis of Automotive Door Panel MaterialsThe automotive door panel is one of the most complex interior components, integrating a high degree of functionality. It must balance aesthetics and tactile comfort withcrash safety (energy absorption), lightweighting, weather resistance, and environmental standards.The following is a detailed breakdown of the mainstream materials used in "Door Panel II" (structural components and decorative inserts):1. Door Carrier / SubstrateThis serves as the "backbone" of the door panel, supporting all switches, speakers, and armrests.Mainstream Materials: Modified PP (Polypropylene)PP+T20/T30:Polypropylene with 20% or 30% Talc filler. It offers excellent dimensional stability and low shrinkage rates.Long Glass Fiber Reinforced PP (PP+LGF):Commonly used in high-end models; it provides extreme strength and lightweighting, effectively replacing metal carriers to enhance structural integrity during collisions.Advantages:Low cost, low density (lightweight), an
Analysis of Automotive Bumper MaterialsAn automotive bumper is a critical safety and aesthetic component. Its material selection is driven by a balance oflightweighting, energy absorption (pedestrian protection), low cost,andcoating quality.Today, over 90% of passenger car bumpers are made fromModified Polypropylene (PP). Below is a detailed breakdown of the components and materials:1. Bumper Fascia (The Outer Shell)This is the visible exterior part that requires high impact resistance and a perfect surface finish.Mainstream Material: PP + EPDM + TD20 (Toughened & Filled PP)PP (Polypropylene):The base resin provides excellent processability and low density for weight reduction.EPDM (Rubber):Acts as a toughening agent. It ensures the bumper remains flexible and does not shatter into sharp shards during an impact, even at low temperatures.TD20 (20% Talc Filler):Increases stiffness and dimensional stability. It prevents the bumper from warping in the heat and controls the thermal expa
front bumper of the car
MINI New Energy Vehicle Door Panel
Address: Intersection of Provincial Road S214 and Huafang Road, Duanbolan Town, Jimo District, Qingdao City, Shandong Province, China.
Tel: +86053268965111
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