Vol 66 No 2 (2021): Journal of the Chilean Chemical Society
Original Research Papers
EVALUATION OF BEHAVIOR OF CONNECTIONS THROUGH AUTOFLOWING SCREWS IN TREATED RADIATA PINE WOODEN PRESERVATIVES
Published
June 13, 2021
Keywords
- Impregnation,
- Chitosan,
- Physical and mechanical properties,
- Wooden connectors
How to Cite
Cardenas, G., Ortiz-Ávila, D., Nuñez-Decap, M., & Opazo-Vega, A. (2021). EVALUATION OF BEHAVIOR OF CONNECTIONS THROUGH AUTOFLOWING SCREWS IN TREATED RADIATA PINE WOODEN PRESERVATIVES. Journal of the Chilean Chemical Society, 66(2), 5223-5229. Retrieved from https://jcchems.com/index.php/JCCHEMS/article/view/1698
Copyright (c) 2021 SChQ
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Abstract
Wood is a great material, it has a disadvantage of early deterioration due to external agents. For this reason, it is interesting to create a new wooden preservative. It was studied one based on a natural polymer (chitosan) and nanoparticles (Si and Ti). Tests were carried out to characterize physical (density, moisture content, swelling and absorption) and mechanical properties (flexion, compression and hardness) of wood specimens with and without impregnation, and their joints with two types of self-drilling screws. Simple and lateral extraction test were carried out. Improvements in hardness and perpendicular compression are highlighted obtained, results indicate a stiffening of the fibers. This treatment achieves the material cross section hardening, coating it with components that help to delay the ignition and provide greater duration against external agents. From the extraction of screws, the impregnated wood allowed more rigid unions, with smaller displacements in comparison to the wood without treatment.
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