Rao Fei, Li Xiaoyan, Li Neng, Li Luming, Liu Qingyuan, Wang Junlong, Zhu Xuguang, Chen Yuhe
School of Art and Design, Zhejiang Sci-Tech University, No. 2 Street 928, Hangzhou 310018, China.
Department of Efficient Utilization of Bamboo and Wood, China National Bamboo Research Center, Wenyi Road 310, Hangzhou 310012, China.
ACS Omega. 2022 Jul 6;7(28):24041-24047. doi: 10.1021/acsomega.2c02035. eCollection 2022 Jul 19.
Bamboo and its products are widely used in indoor and outdoor fields. Photodegradation occurs easily on the surface when bamboo is exposed to ultraviolet (UV) light from solar radiation. This induces surface discoloration and degrades the physical properties of bamboo, which not only negatively affects its utility and aesthetic characteristics but also restricts its application in outdoor environments. In this work, we review the mechanism of bamboo photodegradation, in which the behavior of lignin is key. The changes in bamboo's microstructure, surface color, and chemical composition during photodegradation are described in detail. Methods for enhancing its photostability, including the application of transparent coatings containing UV absorbers and hindered amine light stabilizer compounds on bamboo surfaces, are then systematically summarized, and potential approaches to combat the photodegradation of bamboo surfaces are discussed. On the basis of the recent advances of photodegradation and photostability of bamboo, this review provides new insights into the scientific application and protection of bamboo in the outdoor field.
竹子及其制品在室内外领域有着广泛应用。当竹子暴露于太阳辐射的紫外线（UV）下时，其表面很容易发生光降解。这会导致表面变色并使竹子的物理性能下降，不仅对其使用性能和美学特性产生负面影响，还限制了它在户外环境中的应用。在这项工作中，我们综述了竹子光降解的机制，其中木质素的行为是关键。详细描述了竹子在光降解过程中的微观结构、表面颜色和化学成分的变化。然后系统总结了提高其光稳定性的方法，包括在竹子表面应用含紫外线吸收剂和受阻胺光稳定剂化合物的透明涂层，并讨论了对抗竹子表面光降解的潜在方法。基于竹子光降解和光稳定性的最新进展，本综述为竹子在户外领域的科学应用和保护提供了新的见解。
