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A kind of epoxy resin-nano-titanium interface chemically bonded anticorrosion coating and preparation method thereof

A technology of epoxy resin and anti-corrosion coating, applied in the field of coatings, can solve the problems of poor interfacial compatibility between nano-titanium filler and epoxy resin, and achieve improved salt spray resistance time, good thermal stability, and simple production process Effect

Active Publication Date: 2020-01-03
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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  • A kind of epoxy resin-nano-titanium interface chemically bonded anticorrosion coating and preparation method thereof
  • A kind of epoxy resin-nano-titanium interface chemically bonded anticorrosion coating and preparation method thereof
  • A kind of epoxy resin-nano-titanium interface chemically bonded anticorrosion coating and preparation method thereof

Examples

Experimental program
Comparison scheme
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 and dispersed evenly, the dispersed material is added to the coating grinding equipment to start grinding, and then 1 gram of tetrabutyl titanate is added. Continue to grind at room temperature for 180 minutes to allow tetrabutyl titanate to react with nano-titanium filler and epoxy resin at the same time to prepare nano-titanium filler grafted with epoxy resin. Finally, 19 grams of toughening agent, 0.2 grams of anti-skinning agent, 0.2 grams of matting agent, 0.2 grams of light stabilizer, 0.2 grams of anti-mildew agent, and 0.2 grams of antistatic agent were added and ground for 30 minutes to obtain component A of the coating, which was injected into cans store. Then, 60 grams of cashew nutshell amine was added to the coating component A as a curing agent, and after stirring evenly...

Embodiment 2

[0034] 100 grams of epoxy equivalent 165 ~ 185 (g.mol -1 ) of bisphenol F type epoxy resin, 200 grams of nano-titanium fillers with a particle size of 20 nm, 210 grams of xylene, and 90 grams of n-butanol were added to the coating dispersion equipment and dispersed evenly, and the dispersed materials were added to the coating grinding equipment. Grinding, then adding 30 grams of tetraisopropyl titanate and continuing to grind for 80 minutes at room temperature, 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, 1 gram of defoamer, 0.2 gram of leveling agent, and 0.2 gram of thickener were added and ground for 10 minutes to obtain component A of the coating, which was injected into cans for storage. Next, add 1 gram of diethylenetriene as a curing agent to the coating component A, stir it evenly, apply the coating to the surface of the metal test piece with a spr...

Embodiment 3

[0036] 100 grams of epoxy equivalent 200 ~ 220 (g.mol -1 ) aliphatic epoxy resin, 10 grams of nano-titanium fillers with a particle size of 70 nm, 30 grams of acetone, 20 grams of isopropanol were added to the coating dispersion equipment and dispersed uniformly, and the dispersed materials were added to the coating grinding equipment to start grinding, then Add 5 grams of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate and continue to grind at room temperature for 150 minutes, so that isopropyl tris (dioctyl pyrophosphate acyloxy) titanate is mixed with nano titanium fillers at the same time. and epoxy resin reaction to prepare nano-titanium filler grafted with epoxy resin. Finally, 0.7 grams of defoamer, 0.2 grams of leveling agent, and 0.8 grams of thickener were added and ground for 10 minutes to obtain component A of the coating, which was injected into cans for storage. Next, add 17 grams of tetraethylene pentamine as a curing agent to the coating component A, s...

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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, in particular to an epoxy resin-nano-titanium interface chemically bonded anti-corrosion 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 variety of anti-corrosion coatings, and their output accounts for more than half of anti-corrosion coatings. It has a short life, and epoxy varnishes are not wear-resistant, heat-resistant, and low-strength, so they 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, acid and alkali resistance, and mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/63B05D3/10B05D3/12B05D7/24
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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