深层共溶剂处理的软化木材。,ACS Omega

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深层共溶剂处理的软化木材。
ACS Omega ( IF 3.7 ) Pub Date : 2020-08-24 , DOI: 10.1021/acsomega.0c02223
Yan Wu _{1,

2} , Lechen Yang _{1,

2} , Jichun Zhou _{1,

2} , Feng Yang ₃ , Qiongtao Huang ₄ , Yijing Cai _{1,

2}

Affiliation

由于其良好的物理性能，软木（SW）已广泛用于家居装饰，室内装饰和建筑领域，例如装饰板，软木地板，木砖和软木家具。但是，传统的木材软化方法常常不能满足企业软化木材的要求。在此，受木材软化研究的启发，我们提出了一种使用新型“离子液体”低共熔溶剂（DES）直接制备软木（SW）的方法，因为它具有低成本，环境友好，可回收利用等优点。好处。为了提高研究的适应性，总共设计和制备了五种类型的DES，并且通过微波辅助DES处理天然木材（NW），达到了软化木材的目的。然后，我们对NW和SW进行了一系列比较分析和性能测试，包括显微图像，化学成分，色差和机械性能。结果表明，经DES软化的木材已成为高度多孔的网络结构，部分木质素，半纤维素和纤维素已被去除。同时，获得不同程度的变色，较低的硬度，优异的机械柔韧性和高达约90％的压缩回弹率。SW的上述各种特性为其在木材产品中的应用提供了巨大的潜力。结果表明，经DES软化的木材已成为高度多孔的网络结构，部分木质素，半纤维素和纤维素已被去除。同时，获得不同程度的变色，较低的硬度，优异的机械柔韧性和高达约90％的压缩回弹率。SW的上述各种特性为其在木材产品中的应用提供了巨大的潜力。结果表明，经DES软化的木材已成为高度多孔的网络结构，部分木质素，半纤维素和纤维素已被去除。同时，获得不同程度的变色，较低的硬度，优异的机械柔韧性和高达约90％的压缩回弹率。SW的上述各种特性为其在木材产品中的应用提供了巨大的潜力。

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Softened Wood Treated by Deep Eutectic Solvents.

Due to its good physical properties, softened wood (SW) has been widely used in the fields of home furnishing, interior decoration, and construction, such as decorative panels, softened wood flooring, wooden bricks, and softened wood furniture. However, traditional methods of wood softening often fail to meet the requirements of enterprises for softening wood. Here, inspired by the research related to wood softening, we propose a method for directly preparing softened wood (SW) using a new type of “ionic liquid” eutectic solvent (DES) owing to its low cost, environmental friendliness, recyclability, and other advantages. To improve the adaptability of the study, a total of five types of DESs were designed and prepared, and by the microwave-assisted DES treatment of natural wood (NW), the purpose of softening wood was achieved. Then, we conducted a series of comparative analyses and performance tests on NW and SW, including microscopic images, chemical composition, color difference, and mechanical properties. The results show that the wood softened by DES has become a highly porous network structure, and partial lignin, hemicellulose, and cellulose have been removed. At the same time, different degrees of color change, lower hardness, excellent mechanical flexibility, and a compression rebound rate of up to about 90% are obtained. The above-mentioned various properties of SW provide great potential for its application in wood products.

更新日期：2020-09-08

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