Title: Lightweight Polymeric Composites with Finished A-Surface for Wall and Ceiling Paneling Inside Recreational Vehicles
Authors: Liqing Wei, Ruomiao Wang, Mark O. Mason, Hanwha Azdel
Abstract: This paper describes the application of decorative textured films onto the lightweight reinforced thermoplastic (LWRT) composite core mat during the core manufacturing process, which is followed by a consolidation process. This method is defined as an in-line lamination process with a finished A-surface panel in comparison with a conventional off-line decorative materials lamination process in which the decorative film is applied in a separate process from core manufacture. Decorative films with multiple types of textures have been reported. In-line laminated panels were tested for physical (areal density, thickness, density, and ash content), surface roughness and scratch hardness, mechanical property (flexural, flatwise tensile, and film peel test), sound absorption, and flame retardant performance. A stylus surface roughness method was used to determine quantitatively how much of the embossed texture was retained in the in-line lamination process on the finished panel. The surface scratch hardness of panels varied with different types of films. The adhesion performance between the decorative film layer and LWRT composite substrate has been evaluated by 180° peel adhesion test following ASTM standard D903. The bonding strength between film and composite core was > 20 N. Finished panels showed various performances of the flexural performances caused by the differences of films. The FMVSS302 method was used to compare the fire retardancy (FR) of panels. These panels had acceptable FR and burning rate ranged from 2.0 to 7.0 cm/min, depending on the film type. The laminated panels showed excellent sound absorption performance. These decorative panels with custom design are used as wall and ceiling paneling inside the recreational vehicle (RV) because of their durability, water proof, lightweight, and good fire resistant performances.
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Conference: CAMX 2022
Publication Date: 2022/10/17
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