Technical Paper
High Performance Unfilled Polypropylene Material for Light Weight Interior Trims
2022-03-29
2022-01-0338
Light weighting is important to improve energy efficiency in the automotive industry. In this paper, high performance unfilled polypropylene copolymer (PPCP) material was selected and developed to reduce weight and cost without compromising on functional requirements for interior trims such as door trims, lower pillar trims, scuff trims and rear quarter trims (RQT). Interior trims are loaded with challenging requirements such as stiffness, dimensional stability, haptic feel, scratch resistance, cleanability, thermal stability, toughness, low emission and weathering resistance. Reactor polymerized PPCP material compound met these requirements by having ultra-flow behavior, optimum tensile strength, balanced modulus - impact strength, scratch resistant, low emission and improved thermal properties. This is a ready to mold material used in injection molding process. This unfilled polypropylene copolymer material has been explored for thin wall interior trims with thickness of 2.5mm.