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A self-healing composite material with polarization patterning ability and its preparation method

A polarization pattern and composite material technology, applied in the direction of additive processing, instruments, optical components, etc., can solve the problems of limited application fields, and achieve the effect of simple process, realization of polarization patterning, and mild and controllable conditions

Active Publication Date: 2021-04-02
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a lot of research has been done on the polarized optical properties of metal nanometers, its application fields are very limited, and the application of metal nanocomposites with polarized light properties in patterning, 3D printing and optical encryption anti-counterfeiting has not been reported.

Method used

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  • A self-healing composite material with polarization patterning ability and its preparation method
  • A self-healing composite material with polarization patterning ability and its preparation method
  • A self-healing composite material with polarization patterning ability and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Preparation method

[0047] S1: Dissolve 8.5 parts of methacrylic acid and 21.5 parts of 3-(2-methacryloyloxyethyldimethylamino)propanesulfonate in 70 parts of water and mix evenly, add 0.3 parts of 10% initiator Ammonium sulfate was polymerized at 70°C for 10 hours under the condition of blowing nitrogen gas to obtain a copolymer.

[0048] S2: Add 0.3 parts of gold nanorods with an aspect ratio of 2.0 to the copolymer prepared in step S1, heat to 80° C. and mix uniformly to obtain a nano metal polymer.

[0049] S3: Dissolve 0.05 parts of ferric chloride and 0.25 parts of citric acid in 6 parts of water, adjust the pH to 3, add to the nano metal rod polymer prepared in step S2, heat to 80°C and mix well to obtain a polarized patterned capable self-healing composites.

[0050] 2. Result analysis

[0051] (1) Polarized optical properties

[0052] Such as figure 1 As shown, after the nano metal rod polymer of the present invention is stretched, in different polarized...

Embodiment 2

[0056] 1. Preparation method

[0057] S1: Dissolve 8.5 parts of methyl methacrylate and 21.5 parts of 3-(2-methacryloyloxyethyldimethylamino)propanesulfonate in 70 parts of water and mix evenly, add 0.3 parts of 10% initiator Potassium persulfate was used as an agent, and under the condition of blowing nitrogen, the polymerization reaction was carried out at 70°C for 10 hours to obtain a copolymer.

[0058] S2: Add 0.3 parts of gold nanorods with an aspect ratio of 3.0 to the polymer prepared in step S1, heat to 80° C. and mix evenly to obtain a nano-metal polymer.

[0059] S3: Dissolve 0.05 parts of ferric chloride and 0.25 parts of citric acid in 6 parts of water, adjust the pH to 3, add them to the nano-gold rod polymer prepared in step S2, heat to 80°C and mix evenly to obtain a polarized patterning ability Self-healing composites.

[0060] 2. Result analysis

[0061] (1) Self-repair

[0062] Such as image 3 As shown, the rheological test of the nano metal rod polyme...

Embodiment 3

[0066] 1. Preparation method

[0067] S1: Dissolve 8.5 parts of methacrylic acid and 21.5 parts of 3-(2-methacryloyloxyethyldimethylamino)propanesulfonate in 70 parts of water and mix evenly, add 0.3 parts of 10% initiator Ammonium sulfate was polymerized at 70°C for 10 hours under the condition of blowing nitrogen gas to obtain a copolymer.

[0068] S2: Add 0.3 parts of gold nanorods with an aspect ratio of 4.7 to the polymer prepared in step S1, heat to 80° C. and mix evenly to obtain a nano metal polymer.

[0069] S3: Dissolve 0.1 part of ferric chloride and 0.5 part of citric acid in 6 parts of water, adjust the pH to 3, add to the nano-gold polymer prepared in step S2, heat to 80 ° C and mix evenly to obtain a polarized patterning ability Self-healing composites.

[0070] 2. Result analysis

[0071] (1) Pattern hidden

[0072] The nano-gold rod prepared by the method has an absorption wavelength of about 880nm. When the concentration of nano-gold rods is low enough, ...

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Abstract

The invention discloses a self-repairing composite material having polarization patterning capability and a preparation method thereof. The preparation method includes: dissolving a monomer in a solvent with uniform mixing and adding an initiator to perform the polymerization reaction without oxygen to obtain a copolymer; adding nano metal to the copolymer, and heating and uniformly mixing the components to obtain a nano-metal polymer; dissolving inorganic salt containing Fe<3+> in polybasic acid, regulating pH value, adding the solution to the nano-metal polymer, heating and uniformly mixingthe components to obtain the self-repairing composite material. The composite material has important application value and prospect in the fields such as patterning, pattern concealing, optical encryption anti-counterfeiting and 3D printing.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a self-repairing composite material with polarization patterning capability and a preparation method thereof. Background technique [0002] Metal nano-polymer composites have been applied in many fields due to their excellent physical and chemical properties. Dispersing metal nanoparticles in a polymer matrix can organically combine the properties of metal nanoparticles and polymers, thereby enhancing nanostructures. The electromagnetic properties, optical properties, catalytic properties, and sensing properties of composite materials have opened up new applications of nanocomposites in the field of functional materials. The mechanical, optical, electrical and magnetic properties of metal nanocomposites depend not only on the properties of each component, but also on the structure of metal nanocomposites and the arrangement of metal nanoparticles in the copolymer microd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/14C08K7/00C08K3/08G02B1/04B33Y70/10
CPCB33Y70/00C08K3/08C08K7/00C08K2003/0831C08K2201/011C08K2201/016G02B1/04C08L33/14
Inventor 洪炜徐丽容陈旭东
Owner SUN YAT SEN UNIV
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