熔体电纺制备超细亲水纤维及其亲水性能研究Ultrafine Hydrophilic Fibers Produced by Melt Differential Electrospinning and its Hydrophilic Performance
何万林,丁玉梅,马帅,李好义,谭晶,杨卫民
HE Wan-lin,DING Yu-mei,MA Shuai,LI Hao-yi,TAN Jing,YANG Wei-min
摘要(Abstract):
采用不同比例亲水性添加剂与聚丙烯混合,利用熔体微分静电纺丝技术制得了亲水纤维,并分别测量了纤维的芯吸高度、吸水倍率和输水速率3个指标,利用SEM观察纤维形貌特征与表面结构。试验表明:相同电压下,随着亲水改性剂含量的增加,纤维的吸水倍率先增大后减小,最高可达到27倍;纤维的芯吸高度先增大后减小,最高约为4.5 cm;输水速率总体上呈减小趋势。而在相同亲水改性剂含量下,随着电压增大,纤维吸水倍率及芯吸高度逐渐增大,输水速率逐渐减小;输水速率最大值为12.07 g/(min·g)。
Hydrophilic fibers with different diameters were prepared by changing the applied spinning volt-age of melt differential electrospinning apparatus, and adding different proportions of hydrophilic additives.Wicking height, water absorption rate and water delivery rate were measured, and the morphology character-istics and surface structure of the fibers were observed by SEM. Experiments showed that: under the samevoltage, water absorption rate first increased and then decreased along with content of hydrophilic agent in-creasing, and was up to 27 times; wicking height increased first and then decreased, and was up to about4.5 cm; water delivery rate showed a decreasing trend. While at the same content of hydrophilic agent, as thevoltage increased, water absorption rate showed an increasing trend, wicking height increased, water deliv-ery rate decreased and was up to 12.07 g/(min·g).
关键词(KeyWords):
静电纺丝;亲水改性;聚丙烯
electrospinning,hydrophilic modification,polypropylene
基金项目(Foundation): 北京市自然科学基金资助项目(2141002);; 中央高校基本科研业务费专项资金项目(ZY1532);中央高校基本科研业务费专项资金项目(ZY1520)
作者(Author):
何万林,丁玉梅,马帅,李好义,谭晶,杨卫民
HE Wan-lin,DING Yu-mei,MA Shuai,LI Hao-yi,TAN Jing,YANG Wei-min
DOI: 10.16090/j.cnki.hcxw.2015.11.011
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