Water-resistant self-repairing absorbing wave and anticorrosive coating and preparation method thereof

An anti-corrosion coating and self-healing technology, applied in the field of coatings, can solve problems such as reduced use efficiency and decreased durability, and achieve the effects of increasing adhesion surface, convenient construction and increasing specific surface area.

Pending Publication Date: 2019-03-29
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, more than half of the absorbing materials are used in the outdoor environment. The coatings in the outdoor environment are affected by wind, rain, snow, sunshine and other weather for years, and their performance will decrease over the years, and the durability will gradually decrease.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] ① Preparation of polyaniline: First, weigh 1.5 parts by weight of aniline and 98.5 parts by weight of dimethyl-formamide, place them in a reactor, stir at 1200 r / min, temperature 5°C for 10 minutes, and prepare a mixed solution A; Then, weigh 32 parts by weight of ammonium persulfate and 68 parts by weight of 1mol / L hydrochloric acid solution, place them in a reactor, and stir for 5 minutes at 20°C to prepare a mixed solution B; secondly, mix A and B The solution was mixed according to the weight ratio of 4:5, and stirred at 5°C and 8500r / min for 2.5h; finally, it was washed with distilled water, filtered through a 0.45μm filter membrane, and dried in a 45°C drying oven for 3d.

[0030] ②Synthesis of polyaniline@sodium dialginate microcapsules: First, weigh 7 parts by weight of sodium diatomate and 93 parts by weight of water, place them in a reactor, and stir for 10 minutes under the condition of 10000r / min to prepare sodium diatomate solution; then, weigh 7 parts by w...

Embodiment 2

[0036] The difference between this embodiment and Embodiment 1 is that the parts by weight of the components forming a water-resistant self-repairing absorbing and anti-corrosion coating are different: 20 parts by weight of water-based epoxy resin emulsion, 8 parts by weight of water-based epoxy resin curing agent , 0.6 parts by weight of defoamer, 20 parts by weight of dispersant, 1.5 parts by weight of coupling agent, 10 parts by weight of titanium dioxide, 12 parts by weight of ceramic powder, 20 parts by weight of polyaniline@sodium diatomate microcapsules, manganese dioxide@ 8 parts by weight of activated carbon composite wave absorbing agent and an appropriate amount of water.

[0037] And: the epoxy value of the water-based epoxy resin emulsion is 0.22mol / 100g, and the solid content is 45%; the amine value of the water-based epoxy resin curing agent is 0.21mol / 100g, and the solid content is 46%.

[0038] All the other are with embodiment 1.

Embodiment 3

[0040] The difference between this embodiment and Example 1 is that the parts by weight of the components forming a water-resistant self-repairing absorbing and anti-corrosion coating are different: 30 parts by weight of water-based epoxy resin emulsion, 7 parts by weight of water-based epoxy resin curing agent , 0.6 parts by weight of defoamer, 19 parts by weight of dispersant, 1.0 parts by weight of coupling agent, 8 parts by weight of titanium dioxide, 10 parts by weight of ceramic powder, 18 parts by weight of polyaniline@sodium diatomate microcapsules, manganese dioxide@ 6 parts by weight of activated carbon composite wave absorbing agent and an appropriate amount of water.

[0041] And: the epoxy value of the water-based epoxy resin emulsion is 0.20 mol / 100g, and the solid content is 42%; the amine value of the water-based epoxy resin curing agent is 0.20 mol / 100g, and the solid content is 44%.

[0042] All the other are with embodiment 1.

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Abstract

The invention discloses a water resistant self-repairing absorbing wave and anticorrosive coating. The coating comprises the following components in parts by weight: 20-40 parts by weight of an epoxyresin emulsion, 5-8 parts by weight of an aqueous epoxy resin curing agent, 0.6 parts by weight of a foaming agent, 18-20 parts by weight of a dispersing agent, 0.5-1.5 parts by weight of a coupling agent, 5-10 parts by weight of titanium dioxide, 8-12 parts by weight of ceramic powder, 15-20 parts by weight of polyaniline@sodium silicoalginate microcapsules, 5-8 parts by weight of a manganese dioxide@activated carbon composite absorbing agent, and a proper amount of water. The method has convenient construction and simple operation, and can adopt mechanical spraying or manual painting, and isenvironmentally friendly due to the use of a water solvent.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-resistant self-repairing wave-absorbing and anti-corrosion coating and a preparation method thereof. Background technique [0002] With the progress and development of science and society, televisions, computers, mobile phones, microwave ovens and other electronic products and household appliances are gradually popularized, which bring great convenience to people's life, work and study, but also bring serious electromagnetic radiation. , affecting people's health. The World Health Organization has listed electromagnetic radiation pollution as the fourth largest pollution in the world after air pollution, water pollution and noise pollution. Studies have shown that electromagnetic radiation is harmful to the human nervous system, sensory system, endocrine system, cardiovascular system, visual system, reproductive system and genetic system. In the field of electromagneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/32C09D7/61
CPCC09D163/00C09D5/08C09D5/32C09D7/61C08K2003/2241C08K2003/2262C08K13/06C08K9/10C08K9/12C08K3/22C08K3/013
Inventor 刘军戚红李瑶刘润清杨元全崔云鹏邓永刚
Owner SHENYANG LIGONG UNIV
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