Abstract
A reversible photo-, thermal-, and pH-responsive high-performance functional wood with fluorescence has been prepared. The properties, structure, multi-response, fluorescence, water resistance, and corrosion resistance of original wood (ORW) and functional wood (FUW) were investigated with an X-ray photoelectron spectroscopy (XPS) spectrometer, a Fourier-transform infrared (FTIR) spectrometer, a N2 adsorption–desorption analyzer, an atomic force microscope (AFM), tensile tests, a scanning electron microscope (SEM), an ultraviolet–visible (UV–Vis) spectrophotometer, a fluorescence spectrometer, the equilibrium swelling ratio (ESR), and corrosion tests. The results of XPS, FTIR, N2 adsorption–desorption, and AFM exhibited that FUW was successfully prepared. Additionally, the results of the tensile test and SEM revealed that FUW had better mechanical properties than ORW, due to the filling of epoxy resin in the pores of the wood. Moreover, the UV–Vis and fluorescence spectra demonstrated that the introduction of epoxy resin induced multi-response and fluorescence functions to FUW. Furthermore, the data of ESR and corrosion test showed that the introduction of epoxy resin greatly improved the water and corrosion resistance of wood. This study provides ideas and methods for preparing novel high-performance multi-response FUW.
Highlights
Wood is widely used in construction, furniture, packaging, and other fields because of its advantageous properties such as renewable, light weight, high strength, and easy processing [1,2,3]
To solve the above problems, we impregnated a new kind of epoxy resin into wood and prepared a new type of functional wood
2 adsorption–desorption isotherms of original wood (ORW), functional wood (FUW) and delignified wood were ob−1, and the data were collected over 32 scans with a resolution of 2 cm−1 at room temcm tained on a N2 adsorption–desorption analyzer
Summary
Wood is widely used in construction, furniture, packaging, and other fields because of its advantageous properties such as renewable, light weight, high strength, and easy processing [1,2,3]. To solve the above problems, we impregnated a new kind of epoxy resin into wood and prepared a new type of functional wood This kind of epoxy resin had the advantages of multi-response, fluorescence, low cost, and strong mechanical properties, and water and corrosion resistance [21,22]. This FUW was “self-functional”; its multi-function was not achieved by adding external functional materials, but was achieved by changing the network structure of epoxy resin [21] This FUW had the advantages of low cost and good miscibility. This study provides new ideas and methods for the preparation of multi-functional wood with low cost, high added value, high mechanical properties, and water and corrosion resistance, with prospective applications in intelligent windows, sensors, and other fields [23,24]
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