Yu Wangwang, Wang Yong
School of Mechanical Engineering, Nanjing Vocational University of Industry Technology, Nanjing 210023, China.
Polymers (Basel). 2023 Jan 15;15(2):453. doi: 10.3390/polym15020453.
Bamboo, as a potential alternative to biomass materials, has gained more attention from the bamboo manufacturing industry in China. However, the drawbacks, such as the dimensional instability, and low antifungal and hydrophilic properties of bamboo, inhibit its application and shorten its service life. The objective of this work was to analyze the change in chemical components and fungal resistance of moso bamboo with heat treatment. For this objective, moso bamboo specimens were thermally modified in an oven at different temperatures for a fixed duration. The results showed that the parenchymal cells distorted and deformed in comparison to the control after thermal modification. After thermal modification in an oven, the crystallinity index increased from 39% to 53%. Owing to the thermal modification, the hemicellulose and cellulose relative content decreased, as confirmed by FTIR and XPS analysis. Thus, the dimensional stability and antifungal properties of the thermally modified bamboo specimens improved.
竹子作为生物质材料的一种潜在替代品，在中国竹制品制造业中受到了更多关注。然而，竹子存在诸如尺寸不稳定、抗真菌性能低和亲水性差等缺点，这限制了其应用并缩短了其使用寿命。本研究的目的是分析毛竹经热处理后化学成分的变化和抗真菌性能。为此，将毛竹试件在烘箱中于不同温度下进行固定时长的热改性处理。结果表明，与对照相比，热改性后的薄壁细胞发生了扭曲和变形。在烘箱中进行热改性后，结晶度指数从39%提高到了53%。傅里叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）分析证实，由于热改性，半纤维素和纤维素的相对含量降低。因此，热改性竹试件的尺寸稳定性和抗真菌性能得到了改善。
