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Water -borne anticorrosion paint and method for preparing same

A technology of anti-corrosion coatings and anti-corrosion pigments, which is applied in the field of coatings to achieve the effect of improving adhesion

Active Publication Date: 2012-10-24
JIANGSU HUAXIA PAINT MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in some organic-inorganic composite coatings, it is also found that the addition of silica sol can greatly improve the alkali resistance, hardness, and high-temperature anti-adhesion resistance of the coating film. Coatings have not been reported

Method used

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  • Water -borne anticorrosion paint and method for preparing same
  • Water -borne anticorrosion paint and method for preparing same
  • Water -borne anticorrosion paint and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 5

[0014] Prepare the following raw materials:

[0015] Waterborne epoxy resin (OudraSperse WB 6001, Dow Chemical)

[0016] Silica sol (PA30, Shandong Baite New Material Co., Ltd.)

[0017] Anti-corrosion pigments: zinc phosphate (Taicang Chengxin Chemical Co., Ltd.), modified zinc phosphate (MZP 409, Changsha Ruishi Environmental Protection New Material Co., Ltd.), zinc molybdate (Taizhou Xinyuan Chemical Co., Ltd.), aluminum tripolyphosphate (Weihai Tianchuang Fine Chemical Co., Ltd.), calcium ion exchange pigment (SHIELDEXAC5 ion exchange antirust pigment, Grace China Co., Ltd.).

[0018] Pigments and fillers: iron oxide red (Zibo Yanyong iron oxide red factory), titanium dioxide (R737, Shanghai Xujiang Industrial Co., Ltd.), barium sulfate (Shanghai Jianghu Titanium White Chemical Products Co., Ltd.), talcum powder (Jiangxi Shanggao County Xuefeng Powder Co., Ltd.), mica powder (Dongguan Ruiqi Chemical Co., Ltd.).

[0019] Auxiliaries: wetting agent (FLASH-X 330, Halox Com...

Embodiment 6～ Embodiment 10

[0035] As an improved scheme of the water-based anticorrosion paint provided by the present invention, the anticorrosion pigment also contains aluminum tripolyphosphate and / or calcium ion exchange pigment. The weight of the water-based epoxy resin is 1 to 9 times the weight of the silica sol, more preferably, the weight of the water-based epoxy resin is 3 to 5 times the weight of the silica sol.

[0036] Prepare each raw material, source of raw material is the same as embodiment 1~embodiment 5, the weight ratio of each raw material is shown in table 3. Among them, the weight ratios of water-based epoxy resin and silica sol are 1:1, 3:1, 4:1, 5:1, and 9:1, respectively.

[0037] The weight proportion of each component of the water-based anticorrosion coating in the embodiment 6~the embodiment 10 of table 5

[0038]

[0039]

[0040] The preparation method is the same as in Example 1 to Example 5.

[0041] Performance Testing

[0042] The performance test data of the wa...

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Abstract

The invention provides a water -borne anticorrosion paint and a method for preparing the same, and belongs to the paint technical field. The paint comprises, by weight, 10% to 45% of water-borne epoxy resins, 5% to 20% of silica sol, 5% to 15% of anticorrosion pigments, 20% to 40% of pigment fillers, 0.5% to 5% of additives and 10% to 15% of water. The anticorrosion pigments are selected from one of zinc phosphate, modified zinc phosphate and zinc molybdate or a mixture formed by any of the three in any proportion; and the additives are a mixture formed by wetting agents, dispersing agents, film forming additives, pH modifiers, antifoaming agents and rheological additives in any proportion. The water -borne anticorrosion paint has a good adhesive force with metals, and excellent anticorrosion performance, rigidity and chemical resistant performances, and the salt mist resistant performance is more than1000 hours.

Description

technical field [0001] The invention provides a water-based anti-corrosion coating and a preparation method thereof, in particular to an anti-corrosion coating comprising water-based epoxy resin and silica sol, which belongs to the technical field of coatings. Background technique [0002] At present, metal anti-corrosion coatings are mainly oil-based coatings. During the coating process, a large amount of organic solvents volatilize, seriously polluting the atmosphere and destroying the ecological environment. Nowadays, more and more attention is paid to environmental protection. The development of anti-corrosion coatings will be based on the principles of pollution-free, pollution-free, energy-saving, and cost-effective. Water-based metal anti-corrosion coatings will replace traditional solvent-based coatings and become the mainstream of anti-corrosion coatings in the future. [0003] Water-based epoxy resin also has many advantages of epoxy resin, such as excellent adhesi...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D1/00C09D7/12C09D5/08
Inventor 顾广新武利民解宝盛
Owner JIANGSU HUAXIA PAINT MAKING
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