JP2012011685A5

JP2012011685A5 -

Info

Publication number: JP2012011685A5
Application number: JP2010151024A
Authority: JP
Filing date: 2010-07-01
Publication date: 2013-08-01
Anticipated expiration: 2030-07-01

Description

すなわち、本発明の成形体は、樹脂組成物からなる、複数の凸部が形成された微細凹凸構造を表面に有する成形体であって、前記凸部の先端から１０ｎｍの位置で水平に切断したときの切断面の平均占有率が８．０％以下であり、隣接する凸部間の平均間隔が４００ｎｍ以下であり、かつ前記樹脂組成物は、硬化物とした際の平滑面における水接触角が６１°以上９０°未満であることを特徴とする。
さらに、前記樹脂組成物は、フッ素を含有しないことが好ましい。 That is, the molded body of the present invention is a molded body having a fine concavo-convex structure formed of a resin composition and having a plurality of convex portions formed on the surface, and cut horizontally at a position of 10 nm from the tip of the convex portions. When the average occupation ratio of the cut surface is 8.0% or less, the average interval between adjacent convex portions is 400 nm or less, and the water contact angle on the smooth surface when the resin composition is a cured product Is 61 ° or more and less than 90 ° .
Furthermore, it is preferable that the resin composition does not contain fluorine .

Claims

A molded body having a fine concavo-convex structure formed of a resin composition and having a plurality of convex portions on the surface,
The average occupation ratio of the cut surface when cut horizontally at a position of 10 nm from the tip of the convex portion is 8.0% or less,
The average interval between adjacent convex portions is 400 nm or less,
And the said resin composition is a molded object characterized by the water contact angle in the smooth surface at the time of setting it as hardened | cured material being 61 degrees or more and less than 90 degrees .

The molded article according to claim 1, wherein the resin composition does not contain fluorine .

A water-repellent article comprising the molded article according to claim 1.

It is a manufacturing method of the molded object according to claim 1 or 2,
When the steps (a) to (d) are repeated and the steps (c) and (d) are repeated n times, the n-th step (d) is followed by the n-th step (c). A fine concavo-convex structure is formed by a transfer method using, as a stamper, anodized porous alumina that is manufactured to have a hole diameter of 1.1 to 1.9 times and has an inverted structure of the fine concavo-convex structure formed on the surface. The manufacturing method of the molded object characterized by the above-mentioned.
Step (a): A first oxide film forming step in which a processed surface of an aluminum base is anodized in an electrolytic solution under a constant voltage to form a first oxide film having pores on the processed surface.
Step (b): An oxide film removing step of removing the formed first oxide film and forming an anodized pore generation point on the surface to be processed.
Step (c): A second oxidized surface having a pore corresponding to the pore generation point by anodizing the work surface of the aluminum base material on which the pore generation point is formed again in an electrolytic solution under a constant voltage. A second oxide film forming step of forming a film on the surface to be processed;
Step (d): A pore diameter enlargement treatment step in which a part of the second oxide film is removed to enlarge the pore diameter of the formed pores.

In the transfer method, an active energy ray-curable resin composition is disposed between the stamper and the base material, and the active energy ray-curable resin composition is irradiated with active energy rays to thereby form an active energy ray-curable resin composition. The method for producing a molded body according to claim 4, wherein the stamper is released after the product is cured.