通过木质纤维素接枝增强木质纤维素-碳纳米管复合材料。
Enhancement of lignocellulose-carbon nanotubes composites by lignocellulose grafting.
机构信息
College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot 010018, China.
College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot 010018, China.
出版信息
Carbohydr Polym. 2017 Mar 15;160:115-122. doi: 10.1016/j.carbpol.2016.12.053. Epub 2016 Dec 21.
Lignocellulose (LNC) multi-walled carbon nanotubes (MWCNTs) composites were synthesized by covalently grafting a natural polymer, lignocellulose, onto MWCNTs in an ionic liquid, 1-allyl-3-methylimidazolium chloride (AmimCl). Furthermore, the grafting of LNC facilitated the dispersion of the MWCNTs in AmimCl and MWCNTs/LNC films. The elongation at break and tensile strength of grafted-MWCNTs/LNC films with 3wt% of MWCNTs content were 12.2% and 106.7MPa respectively, which was almost 93.7% and 10.7% higher than those of the pristine MWCNTs/LNC films. This finding clearly revealed that the mechanical properties of grafted-MWCNTs/LNC films were dramatically superior to those of the MWCNTs/LNC films.
木质纤维素（LNC）多壁碳纳米管（MWCNTs）复合材料是通过在离子液体 1-烯丙基-3-甲基咪唑氯（AmimCl）中将天然聚合物木质纤维素共价接枝到 MWCNTs 上合成的。此外，LNC 的接枝促进了 MWCNTs 在 AmimCl 和 MWCNTs/LNC 薄膜中的分散。在 3wt%MWCNTs 含量下，接枝-MWCNTs/LNC 薄膜的断裂伸长率和拉伸强度分别为 12.2%和 106.7MPa，分别比原始 MWCNTs/LNC 薄膜高 93.7%和 10.7%。这一发现清楚地表明，接枝-MWCNTs/LNC 薄膜的力学性能明显优于 MWCNTs/LNC 薄膜。
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