Epoxy resin-nano titanium interface chemical bonding anticorrosive coating and preparation method thereof

A technology of epoxy resin and interface chemistry, applied in the field of coatings, can solve the problems of poor interface compatibility between nano-titanium fillers and epoxy resin, and achieve the effects of increased salt spray resistance time, reduced water absorption, and improved strength

Active Publication Date: 2017-06-27
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of epoxy resin-nano-titanium interface chemically bonded anticorrosion coating and preparation method thereof, utilize the grinding process of coating to graft epoxy resin on the surface of nano-titanium filler, solve the problem of interfacial phase between nano-titanium filler and epoxy resin interface The technical problem of poor capacity

Method used

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  • Epoxy resin-nano titanium interface chemical bonding anticorrosive coating and preparation method thereof
  • Epoxy resin-nano titanium interface chemical bonding anticorrosive coating and preparation method thereof
  • Epoxy resin-nano titanium interface chemical bonding anticorrosive coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] 100 grams of epoxy equivalent 160 ~ 180 (g.mol -1 ) bisphenol F-type epoxy resin, 1 gram of nano-titanium filler with a particle size of 50nm are added to the coating dispersion equipment to disperse evenly, and the dispersed material is added to the coating grinding equipment to start grinding, and then 1 gram of tetrabutyl titanate is added Continue grinding at room temperature for 180 minutes to allow the tetrabutyl titanate to react with the nano-titanium filler and the epoxy resin at the same time to prepare the nano-titanium filler grafted with epoxy resin. Finally, add 19 grams of toughening agent, 0.2 gram of anti-skinning agent, 0.2 gram of matting agent, 0.2 gram of light stabilizer, 0.2 gram of anti-fungal agent, 0.2 gram of antistatic agent and grind for 30 minutes to obtain component A of the coating, which is injected into the can store. Next, add 60 grams of cashew shellamine to component A of the paint as a curing agent, stir evenly, and then apply the ...

Embodiment 2

[0034] 100 grams of epoxy equivalent 165 ~ 185 (g.mol -1 ) bisphenol F-type epoxy resin, 200 grams of nano-titanium filler with a particle size of 20nm, 210 grams of xylene, and 90 grams of n-butanol are added to the coating dispersion equipment to disperse evenly, and the dispersed materials are added to the coating grinding equipment to open Grinding, then adding 30 g of tetraisopropyl titanate and continuing to grind at room temperature for 80 minutes, allowing tetraisopropyl titanate to react with nano titanium filler and epoxy resin at the same time to prepare nano titanium filler grafted with epoxy resin. Finally, add 1 gram of defoamer, 0.2 gram of leveling agent, and 0.2 gram of thickener and grind for 10 minutes to obtain component A of the coating, which is injected into a can for storage. Next, add 1 gram of diethylenetriene as a curing agent to component A of the paint, stir evenly, and then apply the paint on the surface of the metal test piece with a spray gun, a...

Embodiment 3

[0036] 100 grams of epoxy equivalent 200 ~ 220 (g.mol -1 ) of aliphatic epoxy resin, 10 grams of nano-titanium filler with a particle size of 70nm, 30 grams of acetone, and 20 grams of isopropanol are added to the paint dispersion equipment to disperse evenly, and the dispersed materials are added to the paint grinding equipment to start grinding, and then Add 5 grams of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate and continue to grind at room temperature for 150 minutes, allowing isopropyl tris (dioctyl pyrophosphate acyloxy) titanate to be mixed with nano-titanium filler simultaneously and epoxy resin reaction to prepare nano titanium filler grafted with epoxy resin. Finally, add 0.7 g of defoamer, 0.2 g of leveling agent, and 0.8 g of thickener and grind for 10 minutes to obtain component A of the coating, which is injected into a can for storage. Next, add 17 grams of tetraethylenepentamine as a curing agent to component A of the paint, stir evenly, apply the ...

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Abstract

The invention belongs to the technical field of coatings and in particular relates to an epoxy resin-nano titanium interface chemical bonding anticorrosive coating and a preparation method thereof. Firstly, a nano titanium filler grafted with epoxy resin is easily fully dissolved and wetted with coating resin, and the nano titanium filler can be uniformly dispersed in the epoxy resin of the coating and can be cross-linked with the coating resin and a curing agent together, so that the epoxy resin-nano titanium interface chemical bonding anticorrosive coating is obtained; and secondly, the metal titanium particle size of the grafted epoxy resin is in a nano scale, the grafted epoxy resin has a huge specific surface area and a good surface nano effect and can form firm interface bonding force with resin in the coating, the defects and pores of the anticorrosive coating are greatly eliminated, the phenomena such as embrittlement cracking and underfilm corrosion occurring on the anticorrosive coating are avoided, and the corrosion resistance of the coating is improved. Finally, the nano titanium filler is wear-resistant, high in strength and high in thermal stability, so that the wear resistance, mechanical properties and heat resistance of the anticorrosive coating are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an epoxy resin-nanometer titanium interface chemically bonded anticorrosion coating and a preparation method thereof. Background technique [0002] A large number of anti-corrosion projects and scientific experiments at home and abroad have proved that epoxy resin-based coatings have excellent anti-corrosion properties and are the main varieties of anti-corrosion coatings, and their output accounts for more than half of the anti-corrosion coatings. The service life is short, and the epoxy varnish is not wear-resistant, not heat-resistant, and has low strength, so it cannot meet the corrosion protection requirements for metal substrates. Nano-titanium fillers are nano-scale particles of titanium metal, which have the characteristics of small particle size, large specific surface area, stable chemical properties, high temperature resistance, low density, high strength,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/12B05D3/10B05D3/12B05D7/24
CPCB05D3/102B05D3/12B05D7/24C08K3/08C08K2003/0881C08K2201/011C08K2201/014C09D5/10C09D7/63C09D163/00
Inventor 吴航王福会朱圣龙
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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