Abstract
Transparent wood, a sustainable material, holds the potential to replace conventional petroleum-based polymers because of its renewable and biodegradable properties. It has been recently used for construction, energy storage, flexible electronics, and packaging applications. Life cycle analysis (LCA) of transparent wood would provide the environmental impacts during its production and end-of-life (EOL). The cradle-to-gate analysis of transparent wood suggests that sodium hydroxide, sodium sulfite, hydrogen peroxide-based delignification (NaOH + Na2SO3 + H2O2 method), and epoxy infiltration lead to the lowest environmental impacts. It generates approximately 24 % less global warming potential and about 15 % less terrestrial acidification than sodium chlorite delignification and polymethyl methacrylate (PMMA) infiltration. The modelled industrial-scale production has lower electricity consumption (by 98.8 %) and environmental impacts than the laboratory scale (28 % less global warming potential and approximately 97 % less human toxicity). The EOL analysis of transparent wood showed reduced ecological impacts (107 times) in comparison to polyethylene, suggesting that it can be commercially adapted to replace conventional petroleum-based materials.
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