| 摘要 |
PURPOSE: An interior material for vehicles is provided to maintain noise-absorption and cushioning function while maintaining shape stability. CONSTITUTION: An interior material for vehicles contains a thermoplastic polyester-based elastic member which has a melting point of 150-155 °C and an inherent viscosity of 1.0-2.0; and a polyester which has an inherent viscosity of 0.45-0.80 and a melting point of 255-265 °C. The thermoplastic polyester-based elastic member contains a composite fabric which is formed by polymerizing an acid component selected from a terephthalic acid (TPA), an isophthalic acid (IPA), and mixture thereof and a diol component selected from poly (tetramethyleneether) glycol (PTMG), 1,4-butanediols (1,4-BD), ethylene glycol (EG), and mixture thereof. 50% or more of the composite fabric are vertically aligned, comparing with other components.
|
