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Colloidal photon crystal composite film with humidity responsiveness and patterning, and method for preparing same

A colloidal photonic crystal, humidity-responsive technology, applied in the directions of replication/marking methods, applications, household appliances, etc., to achieve the effect of simple process, low cost, and slowing down the drying process

Active Publication Date: 2012-08-01
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on improving the humidity response speed of inkjet printed colloidal photonic crystal composite films by introducing hydrophobic groups. Applications in areas such as color development and sensitive detection

Method used

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  • Colloidal photon crystal composite film with humidity responsiveness and patterning, and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] At a temperature of 10°C and a humidity of 20%, the latex particles containing a monodisperse poly(styrene-methyl methacrylate-acrylic acid) triblock copolymer with a particle size of 100 nm prepared by the method of ZL200510011219.2 emulsion, humidity responsive functional monomer acrylamide, N-isopropylacrylamide monomer, cross-linking agent N, N-methylenebisacrylamide, photoinitiator 2-hydroxy-2-methyl-1- Phenyl-1-acetone, high boiling point additive ethylene glycol and water are mixed to obtain a mixed solution, wherein the content of monodisperse poly(styrene-methyl methacrylate-acrylic acid) triblock copolymer latex particles in the mixed solution 20wt%, the content of humidity responsive functional monomer acrylamide is 20wt%, the content of N-isopropylacrylamide monomer is 10wt%, the content of crosslinking agent N, N-methylenebisacrylamide is 5wt% %, the content of photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone is 5wt%, the content of high boiling point ...

Embodiment 2

[0050] At a temperature of 40°C and a humidity of 60%, commercially available monodisperse polymethyl methacrylate latex particles with a particle size of 1100 nm, humidity-responsive functional monomer acrylamide, and N-isopropylacrylamide monomer , crosslinking agent N, N-methylenebisacrylamide, thermal initiator water-soluble ammonium persulfate, high boiling point additive ethylene glycol and water are mixed to obtain a mixed solution, wherein the monodisperse polymethacrylic acid in the mixed solution The content of methyl ester latex particles is 5wt%, the content of humidity-responsive functional monomer acrylamide is 1wt%, the content of N-isopropylacrylamide monomer is 0.5wt%, the crosslinking agent N, N-methylene The content of bisacrylamide is 0.1wt%, the content of thermal initiator water-soluble ammonium persulfate is 0.1wt%, the content of high boiling point additive ethylene glycol is 30wt%, and the balance is water; the above-mentioned mixed solution is packed i...

Embodiment 3

[0058] At a temperature of 20°C and a humidity of 40%, the monodisperse poly(styrene-methyl methacrylate-acrylic acid) triblock copolymer with a particle size of 180nm prepared by the method of patent No. ZL200510011219.2 Emulsion of latex particles, humidity responsive functional monomer acrylamide, crosslinking agent N, N-methylenebisacrylamide, photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-propanone, The high boiling point additive ethylene glycol is mixed with water to obtain a mixed liquid, wherein the content of the monodisperse poly(styrene-methyl methacrylate-acrylic acid) triblock copolymer in the mixed liquid is 20wt%, and the humidity-responsive functional unit The content of bulk acrylamide is 15wt%, the content of crosslinking agent N, N-methylenebisacrylamide is 2.5wt%, the content of photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone Content is 2.5wt%, the content of high boiling point additive ethylene glycol is 40wt%, and the balance is water; Above-mentione...

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Abstract

The invention relates to a method for preparing a colloidal photon crystal composite film with humidity responsiveness and patterning by improving a humidity response speed through introducing poly (N-isopropylacrylamide). The method for preparing the colloidal photon crystal composite film comprises the following steps of: taking a mixed solution consisting of monodispersed emulsion particles, humidity responsiveness functional monomers, N-isopropylacrylamide monomers, a crosslinking agent, an initiator, a high boiling-point auxiliary and water as ink, printing the ink on the surface of a substrate with wettability in an inkjet manner, and obtaining a patterned colloidal photon crystal composite film composed of microdrop units with the humidity responsiveness, wherein the piled monodispersed emulsion particles are used as frames for the microdrop units with the humidity responsiveness, and crosslinked copolymers with the humidity responsiveness, obtained by crosslinking the humidity responsiveness functional monomers with the N-isopropylacrylamide monomers, are filled in the gaps of the frames.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of colloidal photonic crystal films, and in particular relates to the ability to improve the humidity response speed of patterned colloidal photonic crystal composite films for inkjet printing by introducing poly-N-isopropylacrylamide with humidity responsiveness and patterns Preparation method of colloidal photonic crystal composite film. Background technique [0002] Since the concept of photonic crystals was proposed in 1987, after more than 20 years of development, it has become a research hotspot of common concern in the fields of physics, optoelectronics, materials science, chemistry, and nanotechnology. Based on the various special properties of known photonic crystals, its applications cover many fields such as light, electricity, catalysis, sensing, display, and detection. In the usual patent literature, colloidal photonic crystal films are mainly used in filters (suc...

Claims

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Application Information

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IPC IPC(8): B41M5/00C09D11/10C09D11/30
Inventor 刘美金王京霞王利彬宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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