Cellulose ( IF 4.9 ) Pub Date : 2021-07-16 , DOI: 10.1007/s10570-021-04079-z Mizuki Kishimoto 1 , Hironori Izawa 1, 2 , Hiroyuki Saimoto 1 , Shinsuke Ifuku 1, 2
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Blue, red and yellow chitin nanofibers were obtained using reactive dyes. Since the chitin nanofibers and the dye are covalently bonded, they are resistant to hot water and detergents. Since the dyed chitin nanofibers can be mixed at an arbitrary ratio, purple, orange, and green nanofibers corresponding to the mixed colors could be obtained. The dyed chitin nanofibers were evaluated by the reflection spectrum and the color space (L*a*b*). From the viewpoint of reaction yield and color properties, the appropriate ratio of the reactive dye to chitin was 5% at the maximum. The morphology of chitin nanofibers was maintained even after the introduction of the reactive dye. A resin combined with dyed chitin nanofibers was prepared. By combining with nanofibers, it may be possible to give color and improve mechanical strength to resin while maintaining the transparency of the resin to some extent.
Graphical abstract
中文翻译：
几丁质纳米纤维用活性染料染色及其片材和纳米纤维/树脂复合材料的制备
使用活性染料获得蓝色、红色和黄色几丁质纳米纤维。由于几丁质纳米纤维和染料是共价结合的，因此它们可以耐受热水和洗涤剂。由于染色后的几丁质纳米纤维可以任意比例混合，因此可以获得与混合颜色相对应的紫色、橙色和绿色纳米纤维。染色的几丁质纳米纤维通过反射光谱和颜色空间（L * a * b*）。从反应收率和颜色性质来看，活性染料与甲壳素的适宜比例最大为5%。即使在引入活性染料后，几丁质纳米纤维的形态仍然保持不变。制备了结合染色几丁质纳米纤维的树脂。通过与纳米纤维结合，可以在一定程度上保持树脂的透明度的同时赋予树脂颜色并提高其机械强度。
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