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木材趋磁性仿生矿化形成及微波吸收性能
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科技导报 | 研究论文 2017, 35(22): 71-76
木材趋磁性仿生矿化形成及微波吸收性能
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王汉伟1, 孙庆丰1,2, 盛成皿1, 杨宁1
作者信息
    1. 浙江农林大学工程学院, 杭州 311300;
    2. 浙江省木材科学与技术重点实验室, 杭州 311300

通讯作者:

孙庆丰(通信作者),副研究员,研究方向为木材仿生智能科学和生物质废弃资源高值功能化开发利用,电子信箱:qfsun@zafu.edu.cn
Preparation of the magnetotactic wood through the biomimetic mineralization for application in electromagnetic wave absorption
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出版时间: 2017-11-28 doi: 10.3981/j.issn.1000-7857.2017.22.009
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依据仿生矿化原理,以天冬氨酸为生物分子诱导剂,通过低温溶剂热法在木材表面沉积MnFe2O4晶体的方式制备趋磁性木材样品,并采用X射线衍射(XRD)、扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FTIR)、振动磁强计(VSM)和矢量网格(VNA)等方法对试样进行了表征分析。结果显示,在低温碱性的溶剂热矿化条件下,磁性MnFe2O4晶体在天冬氨酸的诱导作用下可负载于木材表面形成趋磁性木材;趋磁性木材试样的反射损耗(RL)曲线最小值(-12 dB)出现在频率15.52 GHz时,并且在频率14~17 GHz范围内,试样的RL值小于-9 dB,表明趋磁性木材具有良好的微波吸收性能,是一种优良的防电磁污染的吸波复合材料。
趋磁性木材  /  MnFe2O4晶体  /  仿生矿化  /  微波吸收
Based on the principle of the biomimetic mineralization and with the aspartic acid as the biomolecule inducer, the magnetotactic wood is prepared through the deposition of the MnFe2O4 crystal on the wood surface via the solvothermal method at low temperature. The asprepared wood is characterized by the X-ray diffraction (XRD), the scanning electron microscopy (SEM), the Fourier transform infrared spectroscopy (FT-IR), the vibrating sample magnetometer (VSM) and the vector network analysis (VNA). The results show that the magnetic MnFe2O4 could be deposited on the wood surface to form the magnetotactic wood induced by the aspartic acid under the alkaline solvothermal mineralization at low temperature. A minimum reflection loss of the magnetotactic wood is-12 dB at 15.52 GHz. Simultaneously, the RL is below-12 dB ranging from 14 to 17 GHz. Therefore, the magnetotactic wood would find a great potential application for preventing the indoor electromagnetic wave pollution.
magnetotactic wood  /  MnFe2O4  /  biomimetic mineralization  /  electromagnetic wave absorption
王汉伟, 孙庆丰, 盛成皿, 杨宁. 木材趋磁性仿生矿化形成及微波吸收性能. 科技导报, 2017 , 35 (22) : 71 -76 . DOI: 10.3981/j.issn.1000-7857.2017.22.009
WANG Hanwei, SUN Qingfeng, SHENG Chengmin, YANG Ning. Preparation of the magnetotactic wood through the biomimetic mineralization for application in electromagnetic wave absorption[J]. Science & Technology Review, 2017 , 35 (22) : 71 -76 . DOI: 10.3981/j.issn.1000-7857.2017.22.009
2017年第35卷第22期
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doi: 10.3981/j.issn.1000-7857.2017.22.009
  • 接收时间:2017-01-26
  • 首发时间:2017-11-29
  • 出版时间:2017-11-28
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  • 收稿日期:2017-01-26
  • 修回日期:2017-10-20
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通讯作者:

孙庆丰(通信作者),副研究员,研究方向为木材仿生智能科学和生物质废弃资源高值功能化开发利用,电子信箱:qfsun@zafu.edu.cn
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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