Transparent fiber wood composite materials containing long afterglow as lighting equipment

Functional wood composites have been used in the field of optical lighting to alleviate power consumption. In this study, transparent fiber wood (TFW) composite and long afterglow transparent fiber wood (LATFW) composite were prepared by using wood powders with different mesh numbers as raw materials, and then blending with epoxy resin and long afterglow materials (SrAl₂O₄: Eu²⁺, Dy³⁺). By analyzing the material's fluorescence intensity, transmittance, stretch, and other performance, it is revealed that the performance of the materials varies from the number of wood powders mesh number. The comprehensive analysis showed that the TFW prepared by 100–120 mesh wood powders had excellent performance, with transmittance up to 62%, tensile strength 32.06 MPa, and tensile modulus 963.25 MPa. The TFW with wood powders of different mesh number results in materials with different transmittance, thus providing a straightforward way to produce materials with specific light transmittance properties. In addition, LATFW with afterglow time up to 1.5h(3h after irradiation) can be used as lighting equipment such as safety signs.