Effect of Processing Parameters on Morphology and Mechanical Properties of Hollow Gel-Spun Lignin/Graphene Oxide/Poly(Vinyl Alcohol)Fibers  

作　　者：JIN Yanhong HU Wenxin CHENG Yu LIN Jiaxian YANG Xiaona JING Yuanyuan ZHANG Kun LU Chunhong 金艳红;胡文鑫;程毓;林佳娴;杨晓娜;景媛媛;张坤;陆春红(Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China;College of Textiles,Donghua University,Shanghai 201620,China)

机构地区：[1]Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China [2]College of Textiles,Donghua University,Shanghai 201620,China

出　　处：《Journal of Donghua University(English Edition)》2021年第1期14-21,共8页东华大学学报（英文版）

基　　金：Fundamental Research Funds for the Central Universities,China(Nos.20D110110 and 2232020G-01);National Natural Science Foundation of China(No.51903033);Shanghai Sailing Program,China(No.19YF1400800)。

摘　　要：To investigate the influence of various processing parameters on the mechanical properties of fibers,lignin/graphene oxide(GO)/poly(vinyl alcohol)(PVA)fibers with different mass ratios of lignin and GO to PVA were prepared by gel spinning technique.Air drawing process and spinneret diameters were tuned as the main factors.The tensile strength increased up to 472 MPa with air drawing process applied in 30L0.05GO0.72D-A PVA fibers(air-drawn PVA fibers reinforced by 30%lignin and 0.05%GO spun with a spinneret diameter of 0.72 mm),indicating 17.4%higher than that of the fiber without air drawing process(402 MPa).Similarly,at least a 14.6%increase in Young's modulus has been achieved for 30L0.05GO0.72D-A fiber.In addition,a smaller spinneret diameter(0.72 mm)also led to a 24.9%increase in tensile strength and a 7.7%increase in Young's modulus in comparison with those of 5L0.05GO0.84D-A fibers.

关 键 词：gel spinning poly(vinyl alcohol)(PVA) mechanical property spinning condition MORPHOLOGY 

分 类 号：TS151[轻工技术与工程—纺织材料与纺织品设计]