Poly[bis(2,2,2-trifluoroethoxy)phosphazene] superhydrophobic nanofibers.
Poly[bis(2,2,2-trifluoroethoxy)phosphazene] superhydrophobic nanofibers.
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DOI：
10.1021/la052110v
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发表时间：
2005-11
期刊：
影响因子：
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通讯作者：
Anurima Singh;Lee B. Steely;H. Allcock
中科院分区：
文献类型：
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作者：
Anurima Singh;Lee B. Steely;H. Allcock
采用静电纺丝法从四氢呋喃、甲乙酮和丙酮溶液中制备了聚[双（2，2，2-三氟乙氧基）磷腈]纳米纤维。通过改变聚合物溶液的浓度，纤维直径从80 nm变化到1.4 μ m。静电纺丝非织造垫显示出增强的表面疏水性相比，纺丝流延膜的水接触角增加高达55度。疏水性随纤维直径和表面形态而变化，与水的接触角在135 °-159 °范围内。对于超疏水表面记录了低的滞后值（<4度）。这些垫的极高疏水性是氟化表面和静电纺丝垫的固有表面粗糙度的组合结果。
Nanofibers of poly[bis(2,2,2-trifluoroethoxy)phosphazene] were produced by electrospinning from solutions in tetrahydrofuran, methylethyl ketone, and acetone. The fiber diameter varied from 80 nm to 1.4 microm by changes in the concentration of the polymer solution. The electrospun nonwoven mats showed enhanced surface hydrophobicity compared to spun cast films with up to a 55 degrees increase in water contact angle. The hydrophobicity varied with fiber diameter and surface morphology, with contact angles to water being in the range of 135 degrees -159 degrees. A low value of hysteresis (<4 degrees) was recorded for the superhydrophobic surfaces. The extremely high hydrophobicity of these mats is a combined result of a fluorinated surface and the inherent surface roughness of an electrospun mat.