Fabrication and Wettability of Colloidal Layered Double Hydroxide-Containing PVA Electrospun Nanofibrous Mats

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• 作者：Lina Zhao ; Dayong Yang ; Mingdong Dong ; Ting Xu ; Yu Jin ; Sailong Xu ; Fazhi Zhang ; David G. Evans ; Xingyu Jiang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2010
• 出版时间：June 16, 2010
• 年：2010
• 卷：49
• 期：12
• 页码：5610-5615
• 全文大小：212K
• 年卷期：v.49,no.12(June 16, 2010)
• ISSN：1520-5045

文摘

We report a facile protocol of preparing colloidal layered double hydroxide/polyvinyl alcohol (cLDH/PVA) electrospun nanofibrous mats via direct incorporation of low-content cLDH nanoplatelets with PVA without aid of any surfactant. The as-prepared cLDH/PVA nanofibrous mats exhibit a uniform, smooth surface and enhanced temperatures of the onset decomposition and inflection compared with those of the electrospun mats of pristine PVA and solid powdery LDH/PVA (pLDH/PVA) with the same LDH content. Subsequent surface chemical modification enables the resulting cLDH/PVA fibrous mats to exhibit superhydrophobicity and adhesion to water droplets, which are distinctly different from the hydrophilicity of the unmodified cLDH/PVA fibrous mats. Our results involving the cLDH/PVA electrospun nanofibrous mats may allow designing a variety of electrospun composite nanofibers with homogeneous morphology and multiple properties.