Abstract
In this study, nanooctahedra MnFe2O4 were successfully deposited on a wood surface via a low hydrothermal treatment by hydrogen bonding interactions. As-prepared MnFe2O4/wood composite (MW) had superior performance of soft magnetism, fire resistance and electromagnetic wave absorption. Among them, small hysteresis loops and low coercivity (<±5 Oe) were observed in the magnetization-field curve of MW with saturation magnetization of 28.24 emu/g, indicating its excellent soft magnetism. The MW also exhibited a good fire-resistant property due to its initial burning time at 20 s; while only 6 s for the untreated wood (UW) in combustion experiments. Additionally, this composite revealed good electromagnetic wave absorption with a minimum reflection loss of −9.3 dB at 16.48 GHz. Therefore, the MW has great potential in the fields of special decoration and indoor electromagnetic wave absorbers.
Highlights
Wood/inorganic hybrids fall under the category of new functional nanocomposite materials because of being a combination between organic and inorganic materials with their respective advantages and excellent performance
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Summary
Wood/inorganic hybrids fall under the category of new functional nanocomposite materials because of being a combination between organic and inorganic materials with their respective advantages and excellent performance. Magnetic nanomaterials/wood hybrids would be potential candidates for microwave absorption, especially when wood serves as interior decorations due to its renewability, attractive surface, sound insulation, temperature- and humidity-controlling performances. It may be a reasonable choice for wave absorption if the wood surface is embedded with a thin solid magnetic film with a trivial change of appearance. The MW exhibited a good fire resistance property due to it not being burnt in the first 20 s, while only 6 s were needed for the untreated wood This composite is a good electromagnetic absorption material due to its minimum reflection loss of −9.3 dB at 16.48 GHz. the MW has great potential in the fields of special decoration and indoor electromagnetic wave absorbers
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