Cushion Polyurethane Sandwich Composite Structures Strengthened by a Concave-Convex Fabric Panels 


Vol. 23,  No. 13, pp. 3615-3623, Dec.  2022
10.1007/s12221-022-4533-1


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  Abstract

In order to improve the low velocity impact resistance, flexible PU foam composites (FPUC) with a sandwich structure are proposed. The interlayer is composed of a concave-convex fabric structure while the top/bottom layers are made of polyurethane foam (PU). The core is prepared as follows. Seven warp knitted spacer fabric types (WKSF) (WKSF.1-7) are laminated with different number of layers to form cuboids, which are fixed firmly between two layers of low melting point polyester (LMPET) fabrics via hot melting. The effects of spacer yarn density, spacer yarn inclination angle, combination of spacer fabrics, and number of lamination layers on the dynamic cushion performance are evaluated. With the impact energy being 16 J, FPUs demonstrate an energy absorption level that is 19 % and 39 % greater than PU and WKSF. Furthermore, ultra-high molecular weight polyethylene fabric can effectively enhance the surface strength. Finally, the results are computed via theoretical prediction formulae of dynamic buffer resistance is in conformity with the experimental test results.

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  Cite this article

[IEEE Style]

T. Li, P. Liu, W. Dai, B. Shiu, H. Wang, H. Peng, J. Lin, C. Lou, "Cushion Polyurethane Sandwich Composite Structures Strengthened by a Concave-Convex Fabric Panels," Fibers and Polymers, vol. 23, no. 13, pp. 3615-3623, 2022. DOI: 10.1007/s12221-022-4533-1.

[ACM Style]

Ting-Ting Li, Peiyao Liu, Wenna Dai, Bing-Chiuan Shiu, Hongyang Wang, Hao-Kai Peng, Jia-Horng Lin, and Ching-Wen Lou. 2022. Cushion Polyurethane Sandwich Composite Structures Strengthened by a Concave-Convex Fabric Panels. Fibers and Polymers, 23, 13, (2022), 3615-3623. DOI: 10.1007/s12221-022-4533-1.

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pISSN : 1229 - 9197
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