Theses and Dissertations

Advisor

Street, Jason

Committee Member

Stokes, C. Elizabeth

Committee Member

Kim, Yunsang

Date of Degree

8-7-2025

Original embargo terms

Embargo 1 year

Document Type

Graduate Thesis - Open Access

Major

Sustainable Bioproducts

Degree Name

Master of Science (M.S.)

College

College of Forest Resources

Department

Department of Sustainable Bioproducts

Abstract

This study evaluated the mechanical and dimensional performance of oriented strand board (OSB) panels treated with beta-cyclodextrin-essential oil compounds, including betacyclodextrin-only, beta-cyclodextrin-trans-cinnamaldehyde, beta-cyclodextrin-thymol, and betacyclodextrin-nickel. OSB panels were produced using a proprietary spraying system and Dieffenbacher press and tested according to ASTM standards for internal bond strength, modulus of elasticity (MOE), modulus of rupture (MOR), water absorption, and thickness swelling. Results showed that beta-cyclodextrin-trans-cinnamaldehyde enhanced MOE and MOR, while beta-cyclodextrin-thymol significantly improved internal bond strength. Beta-cyclodextrin-nickel demonstrated strong performance in both mechanical strength and water resistance. However, 24-hour submersion results indicated that water resistance may be surface limited. All treatments met industry benchmarks for internal bond and MOE, and most met MOR standards, although none satisfied the thickness swell threshold. Findings support beta-cyclodextrin-essential oil treatments as a viable, eco-friendly alternative to conventional wood preservative and highlight the potential for tailored formulations to enhance targeted OSB performance metrics.

Sponsorship (Optional)

This work is supported by the Biorefining and Biomanufacturing Program, project award no. 2021-67021-34498, from the U.S. Department of Agriculture’s National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and should not be construed to represent any official USDA or U.S. Government determination or policy. This publication is a contribution of the Forest and Wildlife Research Center, Mississippi State University.

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