Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.
Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China; Key Lab of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai 201620, People's Republic of China.
Carbohydr Polym. 2019 Feb 15;206:734-741. doi: 10.1016/j.carbpol.2018.11.056. Epub 2018 Nov 19.
A general way to prepare bio-based polymer colorant by reactive dyeing of regenerated cellulose (RC) in dimethyl sulfoxide (DMSO) was established. Up to 40% higher dye utilization was achieved compared with aqueous reactive dyeing of RC for two reasons. 1. Lower liquor ratio of 1:9 could be applied for the concentrated RC suspensions in DMSO was less viscous. 2. Dye loss from solvolysis was turned off in DMSO. The method was generally applicable to RCs made from wood pulp, waste cotton, and bamboo pulp. The dyeing process has minimum influence on the morphological, rheological, and thermal properties of RC. The colored RCs thus prepared were used to prepare colored polymer composites via a Pickering emulsion approach, and to color cotton, cotton blend, and viscose fabrics via a printing approach. Therefore, it holds great potential as renewable and biodegradable pigments for making colorful composites, ink, textile dyeing and finishing.
建立了一种通过在二甲基亚砜（DMSO）中对再生纤维素（RC）进行反应性染色来制备生物基聚合物颜料的一般方法。与 RC 在水溶液中的反应性染色相比，由于两个原因，染料利用率提高了高达 40%。1. 可以应用更低的液比 1:9，因为 DMSO 中浓缩的 RC 悬浮液的粘性较低。2. 在 DMSO 中，由于溶剂分解导致的染料损失被关闭。该方法通常适用于由木浆、废棉和竹浆制成的 RC。染色过程对 RC 的形态、流变和热性能的影响最小。因此，通过 Pickering 乳液方法制备有色 RC，通过印刷方法制备有色棉、棉混纺和粘胶纤维织物，从而作为可再生和可生物降解的颜料具有巨大的潜力，可用于制造彩色复合材料、油墨、纺织品染色和整理。
