纤维素科学与技术2018，Vol.26Issue(2)：31-37,52,8.DOI:10.16561/j.cnki.xws.2018.02.11
木质纤维素纳米纤丝的制备与表征
Preparation and Characterization of Lignocellulose Nanofibril (LCNF)
摘要
Abstract
Lignocellulose nanofibrils (LCNFs) were produced from unbleached wheat straw fibers using a micro-grinder and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), contact angle and Zeta potential. The LCNFs were determined to have diameters in the range of 5～40 nm. The optimal fibrillation conditions are as follows: Lignocellulose fibers were passed twice through a grinder at 1 500 r/min with the gap of the two disks adjusted to －150 μm. XRD results revealed that LCNF samples did not exhibit any evolution in their crystal structures. Residual lignin inhibited the degree of fibrillation of lignocellulose. The LCNF samples with high lignin content had non-uniform structures and poor stability. Among the LCNF samples, the hydrophobicity was higher for the samples with a greater lignin content.关键词
木质纤维素纳米纤丝/预处理/机械法/残余木质素Key words
lignocellulose nanofibril/pretreatment/mechanical treatment/residual lignin分类
化学化工引用本文复制引用
顾俐慧,金永灿..木质纤维素纳米纤丝的制备与表征[J].纤维素科学与技术,2018,26(2):31-37,52,8.基金项目
国家自然科学基金项目(31730106) （31730106）
国家自然科学基金项目(31470593) （31470593）
国家自然科学基金项目(21704045). （21704045）
