紫外光响应磁性超疏水木材的制备研究

张彩宁, 沈阳宏, 王煦漫*

化工新型材料 ›› 2023, Vol. 51 ›› Issue (7) : 96 -99.

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化工新型材料 ›› 2023, Vol. 51 ›› Issue (7) : 96-99. DOI: 10.19817/j.cnki.issn1006-3536.2023.07.017
新材料与新技术

紫外光响应磁性超疏水木材的制备研究

    张彩宁, 沈阳宏, 王煦漫*
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Preparation of UV-responsive magnetic superhydrophobic wood

  • Zhang Caining, Shen Yanghong, Wang Xuman
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摘要

为了将MnFe2O4晶体应用于超疏水木材,并研究其紫外光响应性,以乙酰丙酮铁和乙酰丙酮锰为反应原料,天冬氨酸为诱导剂,采用低温溶剂热法在木材表面沉积磁性MnFe2O4晶体,再将聚二甲基硅氧烷(PDMS)涂覆在木材表面,制备出磁性超疏水木材。采用傅里叶变换红外光谱仪、扫描电镜和X射线衍射仪对超疏水磁性木材进行分析表征,研究了反应温度和反应时间对木材表面疏水性的影响,并对超疏水木材的紫外光相应性和自清洁性能进行了研究。实验结果显示,木材的接触角随着反应时间和反应温度的升高先增大后减小,当锰铁比例为1∶1,溶剂热反应时间9h,反应温度90℃时,木材的接触角可达到154.34°。磁性超疏水木材在紫外光的照射下从超疏水变为亲水状态。此外,磁性超疏水木材具有良好的自清洁性能。

Abstract

In order to apply MnFe2O4 crystal to superhydrophobic wood and study its UV-responsiveness,magnetic MnFe2O4 was deposited on the wood surface by low temperature solvothermal method with acetylacetone iron and acetylacetone manganese as reaction raw materials and aspartic acid as inducer,and then PDMS was coated on the wood surface to prepare magnetic superhydrophobic wood.The superhydrophobic magnetic wood was characterized by FT-IR,SEM and XRD.The effects of reaction temperature and reaction time on the surface hydrophobicity of wood were studied,and the UV responsiveness and self-cleaning properties of superhydrophobic wood were investigated.The experimental results showed that the contact angle of wood first increased and then decreased with the increase of reaction time and reaction temperature.When the ratio of manganese to iron was 1∶1,the solvothermal reaction time was 9h and the reaction temperature was 90℃,the contact angle of wood could reach 154.34°.Magnetic superhydrophobic wood changed from superhydrophobic to hydrophilic under UV irradiation.In addition,magnetic superhydrophobic wood had good self-cleaning performance.

关键词

MnFe2O4 / 磁性木材 / 超疏水 / 紫外光响应

Key words

MnFe2O4 / magnetic wood / superhydrophobic / UV-responsive

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紫外光响应磁性超疏水木材的制备研究[J]. 化工新型材料, 2023, 51(7): 96-99 DOI:10.19817/j.cnki.issn1006-3536.2023.07.017

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