Multiscale assessment of artificial aging treatment of polysaccharides from tonewood species

Mariana Domnica Stanciu ¹, Horatiu Draghicescu Teodorescu ¹, Sorin Vlase ¹

⁰Faculty of Mechanical Engineering,Transilvania University of Brasov, 29 Eroilor, 500036, Brasov, Romania.

International Journal of Biological Macromolecules +

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June 23, 2024

View abstract on PubMed

Summary

Aging wood improves musical instrument acoustics by increasing wood crystallinity. This study quanties chemical, mechanical, and acoustic changes from artificial aging in tone woods like spruce and maple.

Area Of Science

Wood Science
Acoustics
Materials Science

Background

Wood aging enhances musical instrument acoustic properties.
This is linked to increased wood crystallinity due to polymer chain modifications.
Tone wood aging involves complex chemical changes.

Purpose Of The Study

To multiscale evaluate artificial aging effects on tone wood.
To correlate chemical, mechanical, and acoustic parameter changes.
To understand aging impacts on spruce and maple wood.

Main Methods

Artificial aging using ultraviolet (UV) radiation.
Mechanical testing (tensile test).
Acoustic analysis (time-of-flight).
Chemical analysis (FTIR, XRD), color analysis.

Main Results

Artificial aging increased wood crystallinity.
Changes were observed from the chemical to the acoustic level.
Effects varied by wood species and quality class.

Conclusions

Wood aging significantly alters chemical, mechanical, and acoustic properties.
Increased crystallinity is a key factor in improved acoustic performance.
Findings guide musical instrument manufacturers in wood treatment.

Keywords:

Acoustic Aging Crystallinity Mechanical properties Photo-degradation