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A Note on the Surface Deterioration of Scrimber Composites Exposed to Artificial Ageing

机译：关于人造老化的S木复合材料表面劣化的注意事项

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The effect of ultraviolet radiation on the surface deterioration of scrimber composites with different densities and levels of resin content was investigated for this paper. The surface color, gloss, roughness, and wettability of the samples were investigated to determine the extent of surface changes due to accelerated ageing. The results indicated that all scrimber composites exhibited variation in the color of their surfaces during artificial xenon light exposure. After artificial accelerated ageing, the surface contact angle and roughness were found to increase, whereas the surface gloss and surface free energy decreased. Furthermore, it was observed that the density and resin content of the scrimber composites contributed to reductions in their color variation, wettability, and roughness during weathering, which suggested that the density and resin content played important roles in determining their surface photodegradation properties. Artificial ageing resulted in the degradation of lignin and hemicellulose, thus causing severe surface characteristics.
机译：本文研究了紫外线辐射对不同密度和树脂含量的抄写复合材料表面劣化的影响。研究了样品的表面颜色，光泽度，粗糙度和润湿性，以确定由于加速老化而导致的表面变化程度。结果表明，所有人造划痕复合材料在人工氙气暴露期间均表现出表面颜色的变化。人工加速老化后，发现表面接触角和粗糙度增加，而表面光泽和表面自由能降低。此外，观察到，划痕复合材料的密度和树脂含量有助于降低其在风化过程中的颜色变化，润湿性和粗糙度，这表明密度和树脂含量在确定其表面光降解性能方面起着重要作用。人工老化导致木质素和半纤维素的降解，从而导致严重的表面特性。

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