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使用傅立叶红外光谱(FTIR)对樟子松、银杏等7种针叶树材的木材样本进行了检测和分析。结果表明,7种木材反映木质素、纤维素和半纤维素的主要吸收峰出峰位置接近,如3333~3437 cm~(-1)范围的O-H伸缩振动吸收峰、2917~2933 cm~(-1)处的C-H伸缩振动吸收峰、1694~1737 cm~(-1)附近的C=O伸缩振动、1510~1513 cm~(-1)苯环碳骨架振动振动吸收峰等;在1265~1275 cm~(-1)处均有明显的强峰,说明愈疮木基丙烷是木质素的主要组分;但三尖杉、柳杉、柏木和银杏均表现出含有紫丁香基木质素的特征。树脂、挥发油等成分对樟子松、柏木和柳杉的特征吸收峰的位置及强度产生了一定的影响。7种木材均有能够反映物种特性的吸收峰,如南方红豆杉在2896 cm~(-1)附近的2933 cm~(-1)处有个较小的肩峰,柳杉在1108 cm~(-1)处形成特有吸收峰,樟子松在3078、2654和2537 cm~(-1)处具特有吸收峰等等,均可用做木材的识别特征峰。
The wood samples of seven kinds of coniferous woods, such as Pinus sylvestris var. Mongolica and Ginkgo biloba, were detected and analyzed by Fourier transform infrared spectroscopy (FTIR). The results showed that the main absorption peaks of lignin, cellulose and hemicellulose were similar in seven kinds of woods, for example, OH stretching vibration absorption peak in the range of 3333 ~ 3437 cm -1 and 2917 ~ 2933 cm ~ (- 1), C = O stretching vibration around 1694 ~ 1737 cm -1, vibrational vibrational absorption peak of benzene ring of 1510 ~ 1513 cm -1, etc .; at 1265 ~ 1275 cm -1, indicating that guaiacyl propane is the main component of lignin. However, Cephalotaxus, Cryptomeria, Cypress and Ginkgo biloba exhibited characteristics of lilac-based lignin . Resin, volatile oil and other components of Pinus sylvestris, cedar and cedar characteristics of the absorption peak location and intensity had a certain impact. All the seven species of wood had absorption peaks which could reflect the characteristics of the species. For example, Taxus chinensis has a smaller shoulder at 2933 cm -1 near 2896 cm -1, -1). The Pinus sylvestris var. Mongolica has specific absorption peaks at 3078, 2654 and 2537 cm -1, etc., which can be used as identification peaks of wood.