黄麻和红麻纤维磨木木质素的红外光谱特征

The FTIR Characteristics of the Milled Wood Lignin of Jute and Kenaf Fibers

从黄麻和红麻纤维中分离出磨木木质素,利用红外光谱分析了两种麻纤维磨木木质素的特征峰及归属,得知磨木木质素中有复杂的官能团,含有羟基、羰基、甲基等基团,木质素结构中含有相当数量的紫丁香基单元。根据黄麻和红麻纤维磨木木质素的红外光谱吸收峰强度,推断其结构属于阔叶木类木质素化学结构GS型木质素。

Milled Wood Lignin(MWL) was isolated from jute and kenaf fibers and purified. The absorption peak locations and assignments of MWL were studied by using Fourier transform infrared spectroscopy (FTIR). The different spectras indicate that, there are complex function groups which include hydroxyl, carbonyl and methyl etc in MWL of jute and kenaf fibers. The quantity of syringyl units is high. According to the absorption peak intensity characteristics of MWL of jute and kenaf fiber, it is deduced that jute and...