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Study on the Electromagnetic and Mechanical Properties of Coated Composites

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Nr DOI: 10.5604/01.3001.0014.3803

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Abstract:

In this paper, a single-layer coated composite was prepared using PU2540 polyurethane as the matrix, nickel powder as the wave-absorbing functional particle, and coating technology on plain cotton fabric. The influence of the content of nickel powder on the dielectric properties (the real and imaginary parts and the loss tangent value), the shielding effectiveness and the mechanical properties was studied adopting the method of controlling variables. The result showed that when the content of nickel powder was 0~20% and that of nickel powder relative to that of polyurethane was 20%, the real and imaginary parts of the dielectric constant of the coating were the largest, and its polarising and loss ability with respect to electromagnetic waves were the strongest; when the content of nickel powder relative to that of polyurethane was 15%, the loss tangent value of the coating was the largest, and its absorption and attenuation ability with respect to electromagnetic waves was the strongest. When the values of the coating thickness were at 0.5~2 mm, the real and imaginary parts of the dielectric constant of the coating with a thickness of 1 mm were the largest, and the polarising and loss ability with respect to electromagnetic waves were the strongest. When the loss tangent value and the shielding-attenuation value of the coating with a thickness of 2 mm were the largest, the absorbing-attenuation and shielding-attenuation ability with respect to electromagnetic waves were the strongest.

Tags:

nickel powder, single-layer coating, electromagnetic shielding, dielectric properties.

Citation:

Liu Y, Wang H, Zhang Y, Wang X, Yin G, Han X, Niu J. Study on the Electromagnetic and Mechanical Properties of Coated Composites. FIBRES & TEXTILES in Eastern Europe  2020; 28, 6(144): 89-97. DOI: 10.5604/01.3001.0014.3803

Published in issue no 6 (144) / 2020, pages 89–97.

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