Transparent wood composite

Transparent wood composite is a composite material made by chemically removing the light-absorbing lignin from wood and impregnating the remaining porous cellulose scaffold with a transparent polymer, such as poly(methyl methacrylate) (PMMA) or epoxy. This process renders the wood transparent by matching the refractive indices of the cellulose and the polymer, which minimizes light scattering.

First produced in 1992 by German researcher Siegfried Fink, the material has seen renewed research interest since 2016 due to its potential as a sustainable alternative to glass and plastic in the construction and energy sectors. Transparent wood composites exhibit high optical transmittance (up to 90%) and distinctive optical haze, which allows them to transmit light while distributing it uniformly.

Unlike glass, transparent wood possesses excellent mechanical properties; it is shatterproof, tough, and often retains or exceeds the strength of the original wood. It also offers superior thermal insulation compared to traditional glass windows. Potential applications for the material include energy-efficient glazing systems, substrates for solar cells, and touch-sensitive panels.

This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.