Multi-functional metal surface pretreatment solution and preparation method thereof

A treatment liquid and multi-functional technology, applied in the chemical industry, can solve the problems of urgent anti-corrosion treatment, poisoning of operators, high production cost, etc., and achieve the effect of reducing the comprehensive use cost, reducing the comprehensive cost and reducing the probability of safety accidents

Active Publication Date: 2011-01-19
江苏中佰纳米新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the anti-corrosion treatment of metal materials and components is not only urgent, but also quite cumbersome.
The traditional metal surface treatment is basically divided into pickling, passivation, phosphating and other process steps, which cannot be completed at one time; moreover, the entire process is inseparable from hydrochloric acid, sulfuric acid, and nitric acid treatment, which is harmful to operators; and The sewage after treatment contains a lot of toxic substances. If it is not treated, the pollution to the environment is very serious, and the production cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: The present invention relates to a kind of multifunctional metal surface pretreatment liquid, is calculated by weight percentage, is made up of following component preparation: zinc oxide 0.4%, phosphoric acid 12%, fatty alcohol polyoxyethylene ether 0.8%, quaternary amine Salt 1%, hydrogen peroxide 1%, hydroxymethylimidazoline 3%, ethylene glycol 3%, tartaric acid 10%, sodium tripolyphosphate 2%, RH accelerator 0.2%, benzotriazole 0.2%, OP-10 Emulsifier 3%, penetrant 1%, sodium gluconate 1%, water 61.4%.

[0017] The preparation method of this product is: comprising the following steps: (1) hydrating 0.4% of zinc oxide into a paste with 4 times of hydration, then adding 3% phosphoric acid with a concentration of 85% and stirring to form A solution; Reactor is put into water 61.4%, fatty alcohol polyoxyethylene ether 0.8%, quaternary ammonium salt 1%, hydrogen peroxide 1%, hydroxymethyl imidazoline 3%, ethylene glycol 3%, A solution, phosphoric acid 9%, ta...

Embodiment 2

[0018] Embodiment 2: a kind of multifunctional metal surface pretreatment liquid, calculated by weight percent, is made up of following component preparation: zinc oxide 0.5%, phosphoric acid 18.0%, fatty alcohol polyoxyethylene ether 0.5%, quaternary ammonium salt 1.0% , hydrogen peroxide 0.8%, hydroxymethylimidazoline 4.0%, ethylene glycol 2.5%, tartaric acid 10%, sodium tripolyphosphate 1.4%, phytic acid 0.2%, benzotriazole 0.3%, OP series emulsifier 5%, JFC penetrant 1.0%, sodium gluconate 0.8%, water 54%.

Embodiment 3

[0019] Embodiment 3: a kind of multifunctional metal surface pretreatment liquid, calculated by weight percentage, is made up of following component preparation: zinc oxide 0.6%, phosphoric acid 22%, fatty alcohol polyoxyethylene ether 1.2%, quaternary ammonium salt 1.5% , hydrogen peroxide 1.5%, hydroxymethyl imidazoline 5%, ethylene glycol 2%, tartaric acid 9%, sodium tripolyphosphate 2.2%, phytic acid 0.1%, benzotriazole 0.4%, OP series emulsifier 4%, JFC penetrant 1.2%, sodium gluconate 0.6%, water 48.7%.

[0020] The invention can well remove the oil stain, rust layer and black oxide layer on the metal surface; it can form a layer of phosphating and passivation protective film on the metal surface, the thickness of which is 2.0-3.5 μm, and it will not rust when stored in indoor air for several months , sodium chloride solution and copper sulfate solution tests are all greater than 300 seconds; the formation of phosphating and passivation film is a transition layer for sub...

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PUM

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Abstract

The invention relates to a multi-functional metal surface pretreatment solution and a preparation method thereof. The multi-functional metal surface pretreatment solution is mainly prepared from the following components by weight percent: 0.2-0.6% of zinc oxide, 10-30% of phosphoric acid, 0.2-1.5% of fatty alcohol-polyoxyethylene ether, 0.5-2% of quaternary ammonium salt, 0.5-2% of hydrogen peroxide, 2-6% of hydroxymethyl imidazoline, 2-3% of ethylene glycol, 8-15% of tartaric acid, 1-3% of sodium tripolyphosphate, 0.1-0.3% of RH promoter and 0.1-0.5% of benzotriazole. The method comprises the following steps: mixing zinc oxide and water to obtain paste, adding partial phosphoric acid to stir and obtain a solution A; 2) adding water, fatty alcohol-polyoxyethylene ether, quaternary ammonium salt, hydrogen peroxide, hydroxymethyl imidazoline, ethylene glycol, solution A and other substances in a reaction tank in turn; and 3) stirring for 1.5-3.0 hours at the room temperature to obtain transparent finished product which is not agglomerated. The multi-functional metal surface pretreatment solution can be recycled, have no pollution and on emission, save energy, protect the environment and have lower cost.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a multifunctional metal surface pretreatment liquid and a preparation method thereof. Background technique [0002] Anti-corrosion of metal materials is a worldwide problem. The annual loss due to corrosion is the sum of all natural disasters, and the failure and disaster of engineering structures caused by corrosion are even more difficult to estimate. Therefore, anti-corrosion treatment of metal materials and components is not only urgent, but also quite voluminous. The traditional metal surface treatment is basically divided into pickling, passivation, phosphating and other process steps, which cannot be completed at one time; moreover, the entire process is inseparable from hydrochloric acid, sulfuric acid, and nitric acid treatment, which is harmful to operators; and The treated sewage contains a lot of toxic substances. If it is not treated, the pollution to the environment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06C23G1/08
Inventor 王凤宪
Owner 江苏中佰纳米新材料科技有限公司
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