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Water-borne photoresponse self-repairing coating material and preparation method thereof

A coating material and light-responsive technology, applied in coatings, epoxy resin coatings, etc., can solve the problems of poor photothermal efficiency, easy agglomeration of coating materials, and large surface area of ​​MXene, so as to be suitable for large-scale production and improve the effect. , the effect of simple preparation process

Inactive Publication Date: 2019-10-25
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the prior art, provide a water-based photoresponsive self-healing coating material, and at the same time solve the problem that MXene has a large surface area and is easy to agglomerate in the coating material, resulting in poor photothermal efficiency. , and safe and environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 A kind of preparation method of water-based light-responsive self-healing coating material

[0038] 1. Method

[0039] (1) Preparation of Silicone Modified Waterborne Epoxy Emulsion

[0040] 15g of aminopropyltriethoxysilane (KH550), 30g of dimethyldiethoxysilane and 100g of water-based epoxy resin (F0707) were mixed, and stirred at 1500 rpm for 3 hours to obtain a silicone-modified water-based epoxy resin.

[0041] (2) Monolayer Ti 3 C 2 Preparation of MXenes

[0042] 10g MAX phase material Ti 3 AlC 2 Add to 100mL of 50% HF and stir for 18h to perform etching, then the solution is filtered and washed to pH 6, and the solid obtained by filtration of the filtrate is dried to obtain multi-layer Ti 3 C 2 MXene, 10g Ti 3 C 2 MXene was mixed with 100 mL DMSO and stirred for 18 h for intercalation, ultrasonicated for 1 h under the condition of 500 W, and the obtained solution was filtered and dried to obtain monolayer Ti. 3 C 2 MXenes.

[0043] (3) Pr...

Embodiment 2

[0047] Embodiment 2 A kind of preparation method of water-based light-responsive self-healing coating material

[0048] 1. Method

[0049] (1) Preparation of Silicone Modified Waterborne Epoxy Emulsion

[0050] Mix 20 g of aminopropyltriethoxysilane (KH550), 30 g of dimethyldiethoxysilane with 110 g of waterborne epoxy resin (F0707), and stir at 1500 rpm for 3 hours to obtain silicone-modified waterborne epoxy resin.

[0051] (2) Monolayer Ti 3 C 2 Preparation of MXenes

[0052] 10g MAX phase material Ti 3 AlC 2 Add it to 100mL of 50% HF and stir for 18h to perform etching, then the solution is filtered and washed to pH 5, and the solid obtained by filtering the filtrate is dried to obtain multi-layer Ti 3 C 2 MXene, 10g Ti 3 C 2 MXene was mixed with 80 mL DMSO and stirred for 24 h for intercalation, ultrasonicated for 2 h under the condition of 300 w, and the obtained solution was filtered and dried to obtain monolayer Ti. 3 C 2 MXenes.

[0053] (3) Preparation of...

Embodiment 3

[0057] Embodiment 3 A kind of preparation method of water-based light-responsive self-healing coating material

[0058] 1. Method

[0059] (1) Preparation of Silicone Modified Waterborne Epoxy Emulsion

[0060] 15g of aminopropyltriethoxysilane (KH550), 30g of dimethyldiethoxysilane and 120g of water-based epoxy resin (F0707) were mixed, and stirred at 1500 rpm for 3 hours to obtain a silicone-modified water-based epoxy resin.

[0061] (2) Monolayer Ti 3 C 2 Preparation of MXenes

[0062] 10g MAX phase material Ti 3 AlC 2 Add to 100mL of 50% HF and stir for 18h to perform etching, then the solution is filtered and washed to pH 7, and the solid obtained by filtering the filtrate is dried to obtain multi-layer Ti 3 C 2 MXene, 5g Ti 3 C 2 MXene was mixed with 60 mL DMSO and stirred for 12 h for intercalation, ultrasonicated for 2 h under the condition of 400 W, and the obtained solution was filtered and dried to obtain monolayer Ti. 3 C 2 MXenes.

[0063] (3) Preparat...

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Abstract

The invention discloses a water-borne photoresponse self-repairing coating material and a preparation method thereof. The coating material is composed of an organic silicone modified water-borne epoxyresin emulsion, MXene, water, a water-borne amine curing agent, a dispersant, a flatting agent and a defoaming agent which are mixed in a certain number of parts by mass. According to the water-bornephotoresponse self-repairing coating material and the preparation method thereof, the two dimensional layered material MXene is used as a photothermal filler, the MXene and the organic silicone modified water-borne epoxy resin are dissolved in water, then the water-borne amine curing agent and an addition agent are added, the water-borne photoresponse self-repairing coating material can be obtained, at the same time, the problem of MXene agglomeration is solved, and the photothermal efficiency of the MXene is improved; and the preparation process of the coating material is simple, security and environmental protection are realized, controllable and fast self-repairing can be conducted through visible light or infrared light irradiation response after the water-borne photoresponse self-repairing coating material is prepared into a coating, and the water-borne photoresponse self-repairing coating material is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of self-healing polymer coating materials, and more particularly relates to an aqueous light-responsive self-healing coating material and a preparation method thereof. Background technique [0002] In recent years, polymer coating materials have the advantages of high strength, good toughness, light weight and excellent processing performance, so they are widely used in many fields such as ships, construction, corrosion and anti-corrosion and military industry. However, during the use of polymer coating materials, scratches and cracks are prone to occur on the surface and inside of the coating material. If it is not repaired in time, the mechanical properties of the polymer coating will inevitably decline, thereby shortening the service life of the material, and more Importantly, broken materials can present a huge safety hazard. In response to the above problems, researchers have proposed self-healing tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D7/20
CPCC09D163/00C09D7/61C09D7/20C09D7/70C08K3/14
Inventor 李伟华刘睿曹文凯刘法谦
Owner SUN YAT SEN UNIV
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