摘要
通过湿法纺丝制备具有二级增强结构的钙离子交联海藻酸钠(Alg)、氧化石墨烯(GO)复合纤维。研究过程中通过SEM、FTIR、XRD,表征GO-Alg复合纤维的微观形貌、化学结构以及结晶特性。力学测试结果显示,得益于GO在Alg基体中的均匀分布和钙离子与GO-Alg的双交联网络作用,复合纤维获得显著增强增韧效果。随着GO的添加量达到15%,复合纤维的断裂强度和断裂能较未添加GO的纤维分别提高(184±16)%和(252±28)%。同时,GO-Alg复合纤维在吸湿和阻燃性能方面具有显著提升,其吸水率和极限氧指数分别由纯海藻酸钠纤维的94%和33提高到160%和37。本研究以期为GO-Alg复合纤维的实际应用提供数据基础和理论参考。
In this work,calcium ion crosslinked sodium alginate(Alg)-graphene oxide(GO)composite fibers with secondary reinforced structure are prepared by wet spinning.The micro-morphology,chemical structure and crystallization characteristics of GO-Alg composite fiber are characterized by SEM,FTIR and XRD.The mechanical test results show that thanks to the uniform distribution of GO in Alg matrix and the double cross-linking network of calcium ions with Alg and GO,the composite fiber has achieved significant reinforcement and toughening effect.With the addition of GO up to 15%,the breaking strength and breaking energy of the composite fiber increases by(184±16)%and(252±28)%respectively compared with the fiber without GO.At the same time,the hygroscopic and flame retardant properties of GO-Alg composite fiber are significantly improved.Its water absorption and limiting oxygen index increases from 94%and 33 of pure sodium alginate fiber to 160%and 37 respectively.This paper provides data basis and theoretical reference for the practical application of GO-Alg composite fiber.
作者
宋柏青
毛莉莉
白亚斌
马建华
Song Baiqing;Mao Lili;Bai Yabin;Ma Jianhua(School of Materials Science and Engineering,Xi’an Polytechnic University,Xi’an,Shaanxi 710048,China;School of Fashion and Art Design,Xi’an Polytechnic University,Xi’an,Shaanxi 710048,China;Shaoxing Keqiao West-tex Textile Industry Innovative Institute,Shaoxing,Zhejiang 312030,China;Ningxia Xin’ao Cashmere Co.,Ltd.,Yinchuan,Ningxia 750400,China)
出处
《针织工业》
北大核心
2022年第5期29-34,共6页
Knitting Industries
基金
国家自然科学基金青年项目(51903198)
中国纺织工业联合会科技指导性项目(2021007)
陕西省重点研发计划项目资助(S2022-YF-YBNY-0187)
陕西省教育厅科研计划项目资助(20JY025)
西安工程大学大学生创新训练计划项目(S202110709093)
关键词
海藻酸钠
氧化石墨烯
湿法纺丝
纤维
增强机理
Sodium Alginate
Graphene Oxide
Wet Spinning
Fiber
Reinforcing Mechanism
作者简介
宋柏青(1998—),女,本科生。主要从事功能材料的制备和应用研究;通讯作者:马建华(1984—),男,副教授。E-mail:majianhua@xpu.edu.cn。
