日用化学工业2017，Vol.47Issue(3)：142-147,6.DOI:10.13218/j.cnki.csdc.2017.03.005
海藻酸钠的疏水改性对其电纺性能的影响
Effects of hydrophobic modification of sodium alginate on its electrospinning performance
摘要
Abstract
With poly (vinyl alcohol)(PVA)as spinning accessory,the electrospinning of hydrophobically modified sodium alginate derivative,alginate caprylamide (ACA),was studied. The colloidal and interfacial performance of ACA were characterized by transmission electron microscope,laser particle size and zeta potential analyzer,surface tensiometer,conductivity meter and rheometer. In addition,the morphology,functional group and crystalline structure of ACA/PVA electrospun nanofiber membranes were measured by scanning electron microscope,Fourier transform infrared spectroscopy and poly - crystalline X - ray diffraction. Experimental results showed that the hydrophobic modification upgrades flexibility of sodium alginate (SA ) molecules,which can curlily form micelles with the hydrodynamic particle size of 324 nm (PDI=0. 38 )and zeta potential value of -43. 8 mV. Furthermore,the hydrophobic modification and the addition of PVA as the spinning accessory can effectively reduce the surface tension and conductivity of SA solution,enhance chain entanglements and cause the morphology of ACA/PVA electrospun nanofiber membranes more regular and uniform. Spectroscopy analysis results showed that the hydrogen bonding force between ACA and PVA is still the main force to increase chain entanglements and thus realize the electrospinning.关键词
海藻酸辛酰胺/聚乙烯醇/链缠结/静电纺丝/电纺纳米纤维膜Key words
alginate caprylamide/poly (vinyl alcohol )/chain entanglement/electrospinning/electrospun nanofiber membrane分类
化学引用本文复制引用
陈秀琼,颜慧琼,张雪琴,冯玉红,史载锋,林强..海藻酸钠的疏水改性对其电纺性能的影响[J].日用化学工业,2017,47(3):142-147,6.基金项目
国家自然科学基金资助项目(21366010,21566009) （21366010,21566009）
海南省重点科技计划资助项目(ZDXM2014037) （ZDXM2014037）
海南省普通高等学校研究生创新科研项目(Hys2016-62) （Hys2016-62）
