Transparent Wood
Researchers at the University of Maryland have discovered a new technique for making wood transparent. Previous attempts to make wood transparent used specialized chemicals to remove lignin; however, the main drawback was that this weakened the wood. The new method relies on altering the lignin structure. The process begins by removing the molecules responsible for giving the wood its color. A special hydrogen peroxide agent is then applied to the surface, followed by exposure to ultraviolet light (or natural sunlight). After these treatments, the wood turns white. It is then soaked in ethanol for a more thorough cleaning. Finally, the pores are filled with colorless epoxy to make the material smooth and almost completely transparent. This gives the wood the ability to transmit up to 90% of light, and the material is fifty times stronger than traditional transparent materials. It is also lighter, and, most importantly, stronger than glass, and provides better insulation. This discovery could become a real revolution in the construction industry and completely change the image of buildings in the future. Research is also underway into technologically advanced wood materials, which will also be touch-sensitive and will provide an alternative to various types of screens. Due to their strength, which matches the properties of wood, these screens will prove themselves in harsh environments where glass often fails.