Microstructured material and process for its manufacture

A technology of microstructuring and products, applied in chemical instruments and methods, liquid crystal materials, shielding materials, etc., can solve problems such as high cost, geometric structure control and precision or material property limitations, and low cost

Inactive Publication Date: 2011-01-12
CIMA NANOTECH ISRAEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Highly complex fabrication techniques such as photolithography or printing and electroforming can form precise geometries, but are extremely costly
Lower-c...

Method used

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  • Microstructured material and process for its manufacture
  • Microstructured material and process for its manufacture
  • Microstructured material and process for its manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A 4 mil thick polyethylene terephthalate substrate (Toray Lumirror U46) was used.

[0073] Deposit a layer of primer on the substrate. The primer is composed of 0.28% by weight of [dimethylsiloxane--[3-(2-(2-hydroxyethoxy)ethoxy)propyl]methylsiloxane] copolymer (Aldrich code 480320) and 0.60% by weight of Synperonic NP30 (Fluka No. 86209) in acetone. The materials were mixed by shaking by hand. Approximately 3 milliliters of material was deposited along one side of an 8.5" x 11" sample of the substrate and was knife coated over the entire film using a wire wound rod to form a nominally 12 micron thick (wet) coating. The samples were allowed to dry for approximately 1 minute at room temperature and room humidity.

[0074] The emulsion is prepared by thoroughly mixing the following materials in an ultrasonic dispersion system.

[0075] components

Byk 410

0.290%

Span 60

0.165%

Cyclohexanone

5.212%

aniline

0...

Embodiment 2

[0094] A web is formed on a glass substrate. The mesh and substrate were immersed in a bath of 5% aqueous hydrofluoric acid for 1 minute at room temperature, removed from the bath, and rinsed with tap water for less than 1 minute. Peel the metal mesh from the substrate by hand.

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Abstract

A micro-structured article is disclosed comprising a free-standing network of interconnected traces surrounding randomly-shaped cells wherein the interconnected traces comprise at least partially-joined nanoparticles. In a preferred embodiment, the nanoparticles comprise a conductive metal. The article is preferably formed by coating a nanoparticle-containing emulsion onto a substrate and drying the emulsion. The nanoparticles self-assemble into the network pattern which is subsequently removed from the substrate. A preferred method of removing the network from the substrate comprises the steps of electroplating the traces and subsequently exposing the traces to acid to release the network from the substrate.

Description

technical field [0001] The present invention relates to microstructured materials and methods of making microstructured materials. Background technique [0002] Materials with controlled microstructures have a wide range of consumer and industrial applications. Specifically, thin contiguous sheets of selected materials with controlled porosity are used for various applications. Both the sheets and holes can be used for various purposes. For example, fabrics and textiles made from woven materials provide mechanical support, chemical separation, thermal insulation, or decorative uses. One can define networks of materials using various materials, such as using natural organic materials for conventional clothing. Alternatively, inorganic materials such as metals can be used in various porous consumer applications such as metal mesh in conventional wire mesh inserts for windows and doors. In addition, metal mesh has a wide range of industrial applications, including filters f...

Claims

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Application Information

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IPC IPC(8): C09K19/00C09D7/61
CPCC09D5/022C23C18/122H05K1/0253C09D7/1216C23C18/1295C08K3/08C23C18/127H05K2201/09681H05K9/009C25D1/08H05K3/207H05K2201/0347H05K1/0224H05K2201/0257B82Y30/00C25D1/00C25D1/006Y02P20/582C09D7/61Y10T428/256C25D3/00H01B1/02H01B5/14B22F5/10C25D1/003
Inventor A·贾巴
Owner CIMA NANOTECH ISRAEL
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