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首页> 外文期刊>Journal of Wood Chemistry and Technology >Mechanical Effect of Acetic Acid Lignin Adsorption on Honeycomb-Patterned Cellulosic Films
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Mechanical Effect of Acetic Acid Lignin Adsorption on Honeycomb-Patterned Cellulosic Films

机译:醋酸木质素吸附在蜂窝状纤维素膜上的机械作用

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摘要

We have already fabricated honeycomb-patterned cellulosic films with cellulose I and II polymorphisms as a basal framework in order to create an artificial woody cell wall.~[1.2] The adsorption of an isolated lignin, acetic acid lignin (AL), was attempted onto the honeycomb films not only to develop materials further mimicking the cell wall but also to elucidate the mechanical effect of isolated lignin on the tensile strength of the cellulosic architecture. The tensile strengths of honeycomb-patterned cellulosic films were improved by the AL adsorption. Although the cellulosic films without lignin weakened under high moisture content conditions as compared with those under the low content conditions, the lignin-adsorbed cellulosic film maintained significant tensile strength even under the high content conditions. This result suggests that lignin contributes to reinforce the mechanical strength of cellulose framework, in particular high moisture conditions.
机译:我们已经制备了以纤维素I和II多态性为基础框架的蜂窝状纤维素膜,以创建人造木质细胞壁。[[1.2]尝试将分离的木质素醋酸木素(AL)吸附到蜂窝膜不仅可以开发出进一步模仿细胞壁的材料,而且可以阐明分离的木质素对纤维素结构拉伸强度的机械作用。通过AL吸附提高了蜂窝状纤维素膜的拉伸强度。尽管与低含量条件下相比,没有木质素的纤维素膜在高水分含量条件下会减弱,但是即使在高含量条件下,木质素吸附的纤维素膜仍保持了显着的拉伸强度。该结果表明木质素有助于增强纤维素骨架的机械强度,特别是在高水分条件下。

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