College of Chemistry and Chemical Engineering, Qingdao University, Qingdao University, Qingdao 266071, China; Research Institute of Marine Fiber Novel Materials, Qingdao University, Qingdao 266071, China; Key Laboratory for Advanced Fiber Materials and Modern Textiles, Qingdao University, Qingdao 266071, China.
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao University, Qingdao 266071, China; Research Institute of Marine Fiber Novel Materials, Qingdao University, Qingdao 266071, China; Key Laboratory for Advanced Fiber Materials and Modern Textiles, Qingdao University, Qingdao 266071, China.
Carbohydr Polym. 2018 Feb 1;181:760-767. doi: 10.1016/j.carbpol.2017.11.081. Epub 2017 Nov 24.
Motivated by the extensive application of agar, this work developed a wet-spinning process to fabricate micro-scale fibers using the gelation process of agar. The effect of three vital spinning parameters, namely dope concentration, coagulation bath composition, and fiber post-processing on morphological properties, tensile properties and chemical structure of the fiber have been discussed. The concentration of agar was determined by the results of rheological measurement. The addition of barium chloride in the coagulation process improved the mechanical properties of fibers as compared to deionized water as coagulation. The agar fibers immersed in amino silicone demonstrated significantly showed better mechanical properties compared to the agar fibers only immersed in ethanol. The physical and chemical properties of agar fibers were characterized by X-ray diffraction, FTIR, tensile testing, and SEM. The results showed that excellent agar fibers with several potential applications can be produced with amino silicone modification in optimum coagulation bath.
受琼脂广泛应用的启发，本工作采用琼脂的胶凝过程，开发了一种湿法纺丝工艺来制备微尺度纤维。讨论了三种重要的纺丝参数，即纺丝液浓度、凝固浴组成和纤维后处理对纤维形态、拉伸性能和化学结构的影响。琼脂的浓度是根据流变测量的结果确定的。与去离子水作为凝固浴相比，在凝固过程中添加氯化钡可以提高纤维的机械性能。与仅浸泡在乙醇中的琼脂纤维相比，浸泡在氨基硅油中的琼脂纤维表现出显著更好的机械性能。通过 X 射线衍射、FTIR、拉伸试验和 SEM 对琼脂纤维的物理化学性质进行了表征。结果表明，通过氨基硅油改性在最佳凝固浴中可以制备出具有多种潜在应用的优异琼脂纤维。
