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CN101492153B 一种光响应浸润性能可逆转换的类水滑石薄膜及其制备方法 失效 - 权利终止

一种光响应浸润性能可逆转换的类水滑石薄膜及其制备方法
摘要：
一种光响应浸润性能可逆转换的类水滑石薄膜及其制备方法，属于水滑石薄膜技术领域。该薄膜的化学通式为：[Zn2+1-xAl3+x(OH)2]x+(R)x·yH2O，其中R代表偶氮苯表面活性剂阴离子CF3AZO-；0.2≤x≤0.4，0≤y≤2。优点在于，制备的ZnAl-R-LDHs薄膜材料表面具有纳米/微米复合结构，具有非常优越的光响应浸润性可逆转换性能，在可见光照射下，薄膜与水滴的接触角达到145°～159°，经紫外光照射后，该薄膜对水滴接触角达到45°～72°。本法所用工艺简单、原料易得、成本低、重复性好，该偶氮苯表面活性剂阴离子原位生长的ZnAl-R-LDHs薄膜有望作为生物传感器，智能薄膜，可逆开关器件，微流体器件等得到使用。
摘要（英）：

The present invention relates to a photoresponsive wettability reversible hydrotalcite-like film and a preparation method thereof, and belongs to the technical field of hydrotalcite-like films. The chemical general expression of the film is [Zn<2+>1-xAl<3+>x(OH)2](R)x.yH2O, wherein R represents anion of an azobenzol surfactant CF3AZO<->; and x is more than or equal to 0.2 and less than or equal to 0.4, and y is more than or equal to 0 and less than or equal to 2. The present invention has the advantages that the surface of the prepared ZnAl-R-LDHs film material has a nano/micron composite structure; the film has excellent photoresponsive wettability reversible performance; when the film is illuminated by visible light, the contact angle between the film and a water drop reaches between 145 and 159 DEG; and after the film is illuminated by ultraviolet, the contact angle between the film and the water drop reaches between 45 and 72 DEG. The method has simple process, available raw materials, low cost, and good repetitiveness; and the ZnAl-R-LDHs film grown in situ by the anion of the azobenzol surfactant can be taken as a biosensor, an intelligent film, a reversible switch device, a microfluidic device, and the like for use.

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