对位芳纶/炭黑复合纤维的制备及其性能研究
Preparation of para-aramid/carbon black composite fibers by dry-jet wet spinning and properties
陈金豪 1彭家璇 1庄燕 2刘娜 3杨晨光 1王雯雯 1严坤1
作者信息
- 1. 武汉纺织大学纺织纤维及制品教育部重点实验室,湖北武汉 430200
- 2. 湖北省先进纤维材料综合型技术创新平台,湖北武汉 430200
- 3. 中国石化仪征化纤有限责任公司高纤部,江苏仪征 211900
- 折叠
摘要
传统对位芳纶纤维结构规整,表面改性困难,功能相对单一,通过干喷-湿法纺丝工艺,向对位芳纶前驱液中引入炭黑进行功能化改性,制备出对位芳纶/炭黑复合纤维.采用扫描电子显微镜、X射线衍射分析仪、傅里叶红外光谱仪对其形貌以及结构进行表征并采用热重分析仪、电子单纤维强力机、热红外成像仪探究对位芳纶/炭黑复合纤维的性能.结果表明:相比于未引入炭黑的对位芳纶纤维,对位芳纶/炭黑投料质量比为95∶5的复合纤维断裂伸长率增长了97.13％,而断裂强力保留率为73.82％,仍具有良好的热稳定性,此外在红外灯辐照7 min后,温度变化高达34 ℃,展示出良好的光热转换性能.
Abstract
The traditional para-aramid fiber structure is regular,making surface modification challenging and its functions relatively simple.To address this issue,para-aramid/carbon black composite fibers were prepared by introducing carbon black into the para-aramid precursor,followed by functionalization modifica-tion through a dry-jet wet spinning process.Scanning electron microscopy,X-ray diffraction analysis,and Fourier transform infrared spectroscopy were used to characterize their morphology and structure.Additionally,thermogravi-metric analysis,electronic single fiber strength testing,and thermal infrared imaging were employed to investigate the properties of the para-aramid/carbon black composite fibers.The results show that compared to para-aramid fi-bers without carbon black,the composite fibers with a para-aramid/carbon black feeding ratio of 95∶5 exhibited a 97.13％increase in elongation at break while retaining 73.82％of the original breaking strength.They also demon-strated good thermal stability,with a temperature change of up to 34 ℃ after 7 minutes of infrared lamp irradiation,indicating excellent photothermal conversion performance.
关键词
对位芳纶/炭黑/干喷湿法/力学性能/光热性能Key words
para-aramid/carbon black/dry spray wet method/mechanical properties/photothermal properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据