A kind of near-infrared light responsive self-healing coating and preparation method thereof

A near-infrared light-responsive and self-healing technology, applied in coatings, epoxy coatings, etc., can solve the problems of large human body damage, high laser light intensity, expensive and complex nano-gold particles, and achieve the effect of rapid repair

Active Publication Date: 2018-05-08
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the preparation of nano-gold particles is too expensive and complicated, and the laser light intensity used is very high, which will cause great damage to the human body, it cannot be widely used.

Method used

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  • A kind of near-infrared light responsive self-healing coating and preparation method thereof
  • A kind of near-infrared light responsive self-healing coating and preparation method thereof
  • A kind of near-infrared light responsive self-healing coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment discloses a near-infrared light-responsive self-healing coating, which consists of epoxy resin, m-xylylenediamine and 3,5-bis(trifluoromethyl)benzylamine at a molar ratio of 1:0.15:0.7, and 0.2 parts of carbon black composition.

[0031] This embodiment also discloses a method for preparing the near-infrared photoresponsive self-healing coating, including the following steps:

[0032]S1: Mix 0.0032g carbon black with 0.06g m-xylylenediamine and 0.5g 3,5-bis(trifluoromethyl)benzylamine, then add 0.1g organic solvent N,N-dimethylformamide to help disperse , the formed mixed solution is ready to use after ultrasonication for 0.5-1h;

[0033] S2: Heat 1g of epoxy resin at 80-120°C for more than 10min to help it melt;

[0034] S3: mixing and shaking the mixed solution obtained in step S1 with the epoxy resin obtained in step S2;

[0035] S4: Spin coating the epoxy resin mixture obtained in step S3 to prepare a coating, the substrate used is glass, the spin...

Embodiment 2

[0039] This embodiment discloses a near-infrared light-responsive self-healing coating, which consists of epoxy resin, m-xylylenediamine and 3,5-bis(trifluoromethyl)benzylamine at a molar ratio of 1:0.15:0.7, And 0.1 parts of carbon black composition.

[0040] This embodiment also discloses a method for preparing the near-infrared photoresponsive self-healing coating, including the following steps:

[0041] S1: Mix 0.0016g carbon black with 0.06g m-xylylenediamine and 0.5g 3,5-bis(trifluoromethyl)benzylamine, then add 0.1g organic solvent N,N-dimethylformamide to help disperse , the formed mixed solution is ready to use after ultrasonication for 0.5-1h;

[0042] S2: Heat 1g of epoxy resin at 80-120°C for more than 10min to help it melt;

[0043] S3: mixing and shaking the mixed solution obtained in step S1 with the epoxy resin obtained in step S2;

[0044] S4: Spin coating the epoxy resin mixture obtained in step S3 to prepare a coating, the substrate used is glass, the spi...

Embodiment 3

[0048] This embodiment discloses a near-infrared light-responsive self-healing coating, which consists of epoxy resin, m-xylylenediamine and 3,5-bis(trifluoromethyl)benzylamine at a molar ratio of 1:0.15:0.7, And 1 part of ferric oxide.

[0049] This embodiment also discloses a method for preparing the near-infrared photoresponsive self-healing coating, including the following steps:

[0050] S1: Mix 0.024g ferric oxide with 0.06g m-xylylenediamine and 0.5g 3,5-bis(trifluoromethyl)benzylamine, then add 0.1g organic solvent N,N-dimethylformamide To help disperse, the formed mixture is ready for use after ultrasonication for 0.5-1h;

[0051] S2: Heat 1g of epoxy resin at 80-120°C for more than 10min to help it melt;

[0052] S3: mixing and shaking the mixed solution obtained in step S1 with the epoxy resin obtained in step S2;

[0053] S4: Spin coating the epoxy resin mixture obtained in step S3 to prepare a coating, the substrate used is glass, the spin coating speed is 730r...

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Abstract

The invention discloses a near-infrared light response type self-repair coating. The near-infrared light response type self-repair coating comprises 100 parts of epoxy resin, a first amine curing agent, a second amine curing agent and 0.01-20 parts of photo-thermal filler, wherein an amino molar ratio of the first amine curing agent to the second amine curing agent is 1:0-1:4. The invention further discloses a preparation method of the near-infrared light response type self-repair coating. The near-infrared light response type self-repair coating and the preparation method thereof have the advantages that epoxy resin crosslinking degree and glass-transition temperature control is achieved by means of adjusting a ratio of different amine curing agents; the photo-thermal filler is doped, so that the prepared self-repair coating has excellent thermogenesis effect under near-infrared light irradiation, and the coating can be repaired rapidly under a low power condition when the near-infrared light intensity density is lower than 1.5W / cm<2>.

Description

technical field [0001] The invention relates to the field of self-healing polymer coating materials, in particular to a near-infrared light-responsive self-healing coating and a preparation method thereof. Background technique [0002] During the use of polymer coating materials, the corrosion phenomenon caused by coating scratch damage has always been an important problem in industry. If the scratches on the coating cannot be repaired in time, the dimensional stability and mechanical strength of the base material will be reduced, and other physical properties will also be deteriorated, thereby shortening the service life of the material and affecting the safety of the material. waste of resources. According to research by the Battelle Memorial Institute and the North American special steel industry, the economic loss caused by corrosion in the United States in 2007 was about 442 billion, accounting for about 3.1% of GDP. When traditional coatings are damaged, repainting i...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C09D163/00C09D7/61C08G59/50
CPCC08G59/5033C08G59/504C08K3/04C08K3/22C08K2003/2275C09D7/61C09D163/00
Inventor方亮陈佳美陆春华许仲梓
OwnerNANJING TECH UNIV