木材科学与技术2024，Vol.38Issue(4)：28-35,8.DOI:10.12326/j.2096-9694.2023186
纳米纤维素改性染料溶液及其染色单板耐光色牢度性能
Nanocellulose Modified Dye Solution and the Light Fastness Performance of Dyed Veneer
摘要
Abstract
Three acidic dyes were treated with nanocellulose to obtain well-dispersed nano-modified dye solutions.The dye solutions'particle size dispersion,Zeta potential,and UV-visible light absorption performance were analyzed.The dyeing rate,light fastness,surface chemical structure,and microstructure of the dyed veneer were evaluated.The results showed that the dispersion uniformity and stability of the three dyes after nano modification were improved.After CNC-1%modification,the particle size of the dye significantly decreased,the uniformity of particle size distribution and the absolute value of Zeta potential improved,and the UV-visible light absorption intensity decreased.The dyeing rate of the dyed veneer was enhanced,and the light fastness reached level 4 of"Decorative veneered wood-based panel".The micro surface of the dyed veneer had fibrous aggregates formed by the combination of nanocellulose and dyes.Higher concentrations of CNC(CNC-4%)increase the adsorption capacity of dyes,leading to an increase in colloidal particles and aggregation,which in turn leads to larger particle size and the lower absolute value of Zeta potential,thereby affects the improvement of dye uptake and light fastness.关键词
染料/染色单板/纳米纤维素晶体/分散性/耐光色牢度Key words
dyes/dyed veneer/cellulose nanocrystal/dispersion/light fastness分类
轻工纺织引用本文复制引用
吕少一,程明娟,张龙飞,盛时雄,杨勇,詹先旭..纳米纤维素改性染料溶液及其染色单板耐光色牢度性能[J].木材科学与技术,2024,38(4):28-35,8.基金项目
青年拔尖人才培养项目"木质衍生发光功能材料"(CAFYBB2023QA005). （CAFYBB2023QA005）
