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Preparation method of photonic crystal material with excellent mechanical properties

A photonic crystal and performance technology, applied in the fields of polycrystalline material growth, chemical instruments and methods, nanotechnology for materials and surface science, etc. Simple process and uniform size

Active Publication Date: 2019-10-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These requirements make the cost of photonic crystal materials rise rapidly in the process of industrial production

Method used

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  • Preparation method of photonic crystal material with excellent mechanical properties
  • Preparation method of photonic crystal material with excellent mechanical properties
  • Preparation method of photonic crystal material with excellent mechanical properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The first step: 1 weight part of amphiphilic macromolecular reversible addition fragmentation chain transfer reagent (I) is stirred and dissolved in 2460 weight parts of water to form a water phase, and then poured together with the oil phase composed of 246 weight parts of styrene Stir in the reactor to mix. Raise the temperature of the reactor to 70°C, keep stirring, add 0.07 parts by weight of potassium persulfate after 30 minutes of nitrogen gas, and react for 10 hours to obtain R-AA n1 -b-St n2 -b-X n3 -Z polymer latex.

[0078] The second step: after the first step of reaction, add 166 parts by weight of n-butyl acrylate monomer, after 4.5 hours of reaction, add 215 parts by weight of n-butyl acrylate and 6 parts by weight of 1,4-butanediol Diacrylate, R-AA was obtained after continuing the reaction for 5 hours n1 -b-St n2 -b-St n3 -b-nBA n4 -Z polymer latex.

[0079] Step 3: Take 2 parts by weight of the amphiphilic macromolecular reversible addition frag...

Embodiment 2

[0091] Step 1: Stir and dissolve 1 part by weight of the amphiphilic macromolecular reversible addition-fragmentation chain transfer reagent (I) in 730 parts by weight of water to form a water phase, and pour it together with the oil phase composed of 70 parts by weight of styrene Stir in the reactor to mix. Raise the temperature of the reactor to 70°C, keep stirring, add 0.07 parts by weight of potassium persulfate after passing nitrogen for 30 minutes, and react for 4.5 hours to obtain R-AA n1 -b-St n2 -b-X n3 -Z polymer latex.

[0092] The second step: after the first step of reaction, add 50 parts by weight of n-butyl acrylate monomer, after 2.5 hours of reaction, add 60 parts by weight of n-butyl acrylate and 2 parts by weight of 1,4-butanediol Diacrylate, R-AA was obtained after continuing the reaction for 3 hours n1 -b-St n2 -b-St n3 -b-nBA n4 -Z polymer latex.

[0093] Step 3: Take 2 parts by weight of the amphiphilic macromolecular reversible addition fragment...

Embodiment 3

[0102] Step 1: Stir and dissolve 1 part by weight of the amphiphilic macromolecular reversible addition-fragmentation chain transfer reagent (I) in 10,000 parts by weight of water to form a water phase, and pour it together with an oil phase composed of 10 parts by weight of styrene Stir in the reactor to mix. Raise the temperature of the reactor to 70°C, keep stirring, add 0.2 parts by weight of potassium persulfate after passing nitrogen for 30 minutes, and react for 12 hours to obtain R-AA n1 -b-St n2 -b-X n3 -Z polymer latex.

[0103] Step 2: After the first step reaction, add 10 parts by weight of n-butyl acrylate monomer, and after 8 hours of reaction, add 1000 parts by weight of n-butyl acrylate and 30 parts by weight of 1,4-butanediol Diacrylate, R-AA was obtained after continuing the reaction for 10 hours n1 -b-St n2 -b-St n3 -b-nBA n4 -Z polymer latex.

[0104] Step 3: 10 parts by weight of the amphiphilic macromolecular reversible addition fragmentation chai...

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Abstract

The invention discloses a preparation method of a photonic crystal material with excellent mechanical properties. According to the preparation method, a emulsion polymerisation system is adopted, reversible addition-fragmentation chain transfer polymerization technology is adopted, a segmented copolymer nanoparticle rubber emulsion is prepared, after combination, amphiphilic high molecular reversible addition-fragmentation chain transfer reagent technology is adopted, so that three-layer polymer nanometer core-shell particles are obtained; and de-watering drying is carried out so as to obtainthe polymer photonic crystal material with uniform microstructures. The technical scheme used for preparing the polymer photonic crystal material is capable of saving energy, is friendly to the environment, and is simple in technology; the prepared photonic crystal material possesses following advantages: cracking is not easily caused, self supporting is realized, mechanical properties are excellent, and the application prospect is promising.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a preparation method of a photonic crystal material with excellent mechanical properties. Background technique [0002] Photonic crystals are a kind of micro-nano structures formed by the periodic arrangement of media with different refractive indices in space. It has a photonic band gap, and light waves in the photonic band gap frequency range cannot propagate in certain directions in the medium. Therefore, taking advantage of this photonic bandgap property, photonic crystal materials can be applied to new optical devices, anti-counterfeiting security technology, responsive sensors and other fields. [0003] Traditional polymer photonic crystal materials use rigid nanoparticles to self-assemble to form a regular structure. This is because the rigid particles are not prone to aggregation and adhesion during the self-assembly process, and can better form a regular struc...

Claims

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Application Information

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IPC IPC(8): C08F293/00C08F220/06C08F212/08C08F220/14C08F220/46C08F212/32C08F220/18C30B29/58C30B29/02C30B29/16C30B29/60B82Y40/00B82Y30/00
CPCC08F293/005C08F220/06C08F212/08C08F220/14C08F220/46C08F212/32C08F220/18C30B29/58C30B29/02C30B29/16C30B29/60B82Y40/00B82Y30/00C08F2438/03C08F220/1808C08F220/1804
Inventor 项青罗英武高翔
Owner ZHEJIANG UNIV
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