Reliability analysis of wood-based engineering materials under simulated seawater degradation

Le résumé fourni par la source

Wood is a building material that is still widely used in a variety of marine construction and engineering today. However, wood long-term exposure to seawater will lead to the destruction of wood structure, so it is particularly important to study the deterioration mechanism of wood in seawater and predict its service life. In this research, the deterioration process and deterioration mechanism of wood in seawater environment were studied. The color of the wood darkened, and the cell wall of the cellulose was destroyed by seawater, resulting in the deterioration of the wood, resulting in the mechanical properties dropping to about 65–75% of the original levels. The degradation behavior of cellulose in seawater can be divided into four processes. When the termination reaction occurs, whose physical and chemical stop reactions together inhibit the exfoliation reaction of cellulose, so the wood cannot be degraded in the next step. For this, a prediction model was developed and through the equivalent acceleration experiment of cellulose deterioration, to more accurately simulate and predict the performance changes of wood under long-term seawater exposure conditions and provide a scientific basis for the service life of wood functional materials in seawater environment.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.