Shanghai Frontiers Science Center of Advanced Textiles, Donghua University, Shanghai 201620, China; Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China.
School of Fashion Engineering Central Laboratory, Shanghai University of Engineering Science, Shanghai 201620, China.
Int J Biol Macromol. 2023 May 31;238:124066. doi: 10.1016/j.ijbiomac.2023.124066. Epub 2023 Mar 18.
Feather keratin from waste feather has become an attractive target to replace petroleum-based Poly (vinyl alcohol) sizes due to its easy film-forming ability, excellent adhesive property, biodegradability and low cost. However, poor water-solubility and brittleness of pure keratin films have become the bottlenecks and restricted the application of keratin as sizing agents. Therefore, water-soluble keratin was extracted by the reduction-preservation method and enhanced by saccharides in aqueous system to obtain all-green keratin-based slurry. The results showed that the keratin-based slurry exhibited improved sizing performance in the order of sucrose ≤ glucose ≤ pullulan by the moderate Maillard reaction. Among them, the fabricated pullulan-keratin sizes films had 27.86 %, 2684.08 % and 2911.31 % increment in tensile strength, elongation and work of facture compared with pure keratin sizes films. Besides, the addition of pullulan and subsequently moderate Maillard reaction improved the thermo-tenacity of keratin-based sizes, which was expected to tackle with the brittleness of pure keratin size films. In addition, novel pullulan-keratin sizes had good sizing performance and high desizing efficiency to cotton, cotton/polyester and polyester yarns and fabrics. Successful utilization of pullulan-keratin sizes will bring opportunities for high value utilization of waste feather and promote the green and low-carbon development of textile industry.
由于羽毛角蛋白具有易于成膜、黏附性好、生物降解性和成本低等优点，已成为替代石油基聚（醇）类浆料的有吸引力的目标。然而，纯角蛋白膜的水溶性差和脆性差已成为瓶颈，限制了角蛋白作为浆料的应用。因此，采用还原保存法提取水溶性角蛋白，并在水相体系中通过糖增强其性能，得到全绿色角蛋白基浆料。结果表明，适度美拉德反应后，角蛋白基浆料的上浆性能按蔗糖<葡萄糖<普鲁兰的顺序提高。其中，与纯角蛋白浆料相比，制备的普鲁兰-角蛋白浆料薄膜的拉伸强度、伸长率和断裂功分别提高了 27.86%、2684.08%和 2911.31%。此外，普鲁兰的添加以及随后的适度美拉德反应提高了角蛋白浆料的热稳定性，有望解决纯角蛋白浆料薄膜的脆性问题。此外，新型普鲁兰-角蛋白浆料对棉、棉/聚酯和聚酯纱线和织物具有良好的上浆性能和较高的退浆效率。成功利用普鲁兰-角蛋白浆料将为羽毛废料的高值化利用带来机遇，促进纺织工业的绿色低碳发展。
