Laminates for the automotive industry are composite materials consisting of at least two layers, with at least one layer having a textile properties. Laminates are distinguished based on the type of layers, the number of bonded layers, the type of binder, and the type of lamination. Laminates for the automotive industry are most commonly found in the automotive interior, including door trims, dashboard panels, headliners, seats, and cargo areas, among others. In the scope of the thesis, we investigated the influence of three-dimensional spacer fabric on the air permeability of the laminate. The experimental part was designed by dividing the laminates into two groups. The first group comprised three laminates consisting of foam and two layers of warp knitted fabric, while the second group included three laminates composed of polyurethane foam and three-dimensional spacer fabric. The polyurethane foam in both groups was open-cell. All analyzed laminates in the thesis were made using flame lamination. In the experimental part, we focused on air permeability and the influence of three-dimensional spacer fabric. We also measured the thickness, weight, tensile strength and elongation, water vapor permeability, and ball indentation hardness of all samples. Based on the obtained results, we concluded that laminates with lower thickness have the highest air permeability, where three-dimensional spacer fabric is not necessary as the foam already achieves good results. Laminating three-dimensional spacer fabric proved to be effective for laminates with thickness greater than 7 mm.
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