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Uneven structure body and manufacturing method therefor

A manufacturing method and structure technology, which can be applied to flat products, other household appliances, and devices that apply liquid to surfaces, etc., which can solve the problems of limited use of honeycomb structure membranes and limited raw materials.

Inactive Publication Date: 2015-12-23
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the polymer honeycomb structure membrane that can be produced by the coagulation method utilizes the coagulation phenomenon, and due to this, there are limitations in terms of raw materials
Therefore, the use of the honeycomb structure membrane produced by the coagulation method is limited

Method used

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  • Uneven structure body and manufacturing method therefor
  • Uneven structure body and manufacturing method therefor
  • Uneven structure body and manufacturing method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] Compound 15 containing a catechol group was synthesized. For the synthetic method of compound 15 containing catechol group, in reference Figure 21 while explaining. First, DMA as a first compound to be used as a raw material of catechol group-containing compound 15 was prepared by the following method. For ultrapure water manufactured using an ultrapure water manufacturing device (MILLI-Q (registered trademark)) manufactured by MILLIPORE, N was carried out for 20 minutes. 2 of bubbling. Thereafter, to the ultrapure water, sodium bicarbonate (NaHCO 3 ), Borax (Na 2 B 4 o 7 ), and dopamine hydrochloride represented by formula (9) (abbreviated as DOPA, C 8 h 11 NO 2 , molecular weight: about 153.2), while stirring the solution, dropwise add dimethacrylic anhydride (C 8 h 10 o 3 , Molecular weight: about 154.2) tetrahydrofuran (THF) solution. At this time, by adding a sodium hydroxide (NaOH) aqueous solution, the hydrogen ion index pH of the above solution was...

Embodiment 2

[0163] The homogenization step 33 in the manufacturing flow 20 is not performed. Other conditions were the same as in Example 1, and the uneven structure 10 was produced.

[0164] In the obtained concave-convex structure 10 , a part of the microparticles 14 was covered, and voids were confirmed between the microparticles 14 and each of the microparticles 14 . The diameter D1 of the hole is 10 μm. The heat resistance of the obtained concave-convex structure 10 was evaluated by the same method and criteria as in Example 1. The evaluation result was B.

Embodiment 3

[0166] In addition to replacing TiO as microparticles 14 2 Instead, SiO 2 The hydrophobic liquid 27 was produced in the same manner as in Example 1 except for the nanoparticles (particle diameter: about 100 nm), and the concave-convex structure 10 was produced in the same manner as in Example 1. Figure 26 , Figure 27 The SEM photograph of the uneven|corrugated structure 10 of this Example is shown in . The heat resistance of the obtained concave-convex structure 10 was evaluated by the same method and criteria as in Example 1. The evaluation result was A.

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Abstract

Provided are: an uneven structure body wherein microparticles do not become detached, and the uneven structure does not readily deteriorate; and a manufacturing method therefor. Recesses and protrusions are formed on the surface of the uneven structure body (10, 90, 95, 100, 105, 120). The uneven structure body (10, 90, 95, 100, 105, 120) is formed of a plurality of microparticles (14), and an amphiphilic polymer compound (15) which has a catechol group. The polymer compound (15) covers at least one part of the surface of the microparticles (14), and bonds the microparticles to one another. The diameters of the recessed parts of the recesses and protrusions are larger than the diameters of the microparticles (14). The uneven structure body (10, 90, 95, 100, 105, 120) is manufactured by: forming a cast film (44) from a liquid containing the microparticles (14) and the polymer compound (15) which has a catechol group; effecting dew condensation on the cast film (44); and evaporating water droplets (408), which have been produced by the dew condensation, and an organic solvent.

Description

technical field [0001] The present invention relates to a concavo-convex structure having concavities and convexities on the surface and a method for manufacturing the same. Background technique [0002] A concavo-convex structure having fine concavities and convexities on the surface is expected to be used not only in the fields of optical materials and electronic materials but also in a wide range of fields such as the field of regenerative medicine. Among such concavo-convex structures, there is a structure in which concavo-convex structures are formed in a predetermined pattern. As one of them, there is a membrane having a honeycomb structure in which a plurality of pores are formed at constant intervals on the membrane surface (hereinafter referred to as a honeycomb structure membrane). [0003] An agglomeration method is known as a method for producing a polymer honeycomb structure membrane. The coagulation method is a method in which a polymer solution for forming a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/26B29C41/24B29C59/00
CPCB29C70/64B29C41/24B29C59/005B29D7/00B05D1/30B05D5/00C08K3/22C08K2003/2241C09D133/26
Inventor 伊藤晃寿薮浩斋藤祐太
Owner FUJIFILM CORP