竹原纤维和亚麻纤维鉴别分析方法研究

竹原纤维和亚麻纤维理化性质极其相似，常规方法中难以找到合适的鉴别方法，文章采用纤维投影法、密度法、溶解法、傅立叶红外法等多种方法分析研究，根据亚麻和竹原纤维分子结构中-CH、-CH2、-CH3个数（聚合度）的差异，利用红外光谱仪测其光谱图，发现在2900cm^-1和2850cm^-1处存在较为明显的差异，经多次测量完成竹原纤维的标准红外光谱图，利用此光谱图可以定性鉴别亚麻和竹原纤维。

Research on the method of analysis and identification of bamboo fiber and flax fiber

The physical and chemical properties of bamboo fiber and flax fiber are very similar which leads to dittqculty in finding out a proper method to identify the two fibers. Based on the difference of the element structure - CH, - CH2 and - CH3 of the two fibers, obvious difference is found in 2 900 cm^-1 and 2 850 cm^-1 of their spectrogram by use of infrared spectrometer. After repeatedly measuring, a standard infrared spectrogram of bamboo fiber is established which can be used to identify the flax fiber and bamboo fiber in a qualitative way.