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Application of carbamate compound in magnesium alloy etching additive

A carbamate and etching additive technology is applied in the application field of carbamate compounds in magnesium alloy etching additives to achieve the effects of simplifying composition, prolonging service life and reducing side erosion

Active Publication Date: 2019-03-29
上海镁印科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the bad problems in the etching process of magnesium alloy etching additives, the invention provides an application of carbamate compounds in magnesium alloy etching additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Put aniline, urea, n-butanol and catalyst into the reactor, react at temperature (120-230°C) and pressure (0.6-1.2MPa) for a certain period of time (2-12h), and then purify to obtain butyl phenylcarbamate. Butyl phenylcarbamate (accounting for 30%) and corresponding surfactant (sodium dodecylbenzenesulfonate accounts for 10%), defoamer (polyoxypropylene oxide ethylene glyceryl ether accounts for 5%), Solvent (isopropanol accounts for 9%) and deionized water (accounting for 46%) are heated together (50-100° C.) to dissolve until they are evenly mixed, and the magnesium alloy etching additive is thus prepared.

[0047] 3% additive, 15% nitric acid and 82% water are formed magnesium alloy etchant, and the magnesium alloy plate that development completes is fixed on the top rotary table of etching machine, by adjusting the etchant in the etching machine tank stirring and sprinkling speed (280~420rpm) and Solution temperature (28~45 ℃), obtains the magnesium plate after etch...

Embodiment 2

[0049] Put urea, octanol and catalyst into the reactor, react at temperature (120-180°C) and pressure (0.6-1.2MPa) for a certain period of time (2-15h), and then purify to obtain octyl carbamate. Octyl carbamate (accounting for 30%) and corresponding surfactant (dodecylbenzenesulfonic acid isopropanolamine salt accounts for 15%), defoamer (polyoxypropylene oxide ethylene glyceryl ether accounts for 4%) %), solvent (caprylic acid accounts for 10%) and deionized water (accounting for 41%) are heated together (50-100° C.) to dissolve until they are evenly mixed, and the preparation of the magnesium alloy etching additive is completed.

[0050] 4% additive, 18% nitric acid and 78% water are formed magnesium alloy etchant, and the magnesium alloy plate that development completes is fixed on the top rotary table of etching machine, by adjusting the etchant in the etching machine tank stirring and sprinkling speed (280~420rpm) and Solution temperature (28~45 ℃), obtains the magnesium...

Embodiment 3

[0052] Put hexamethylene diisocyanate (HDI) and methanol into the reaction kettle, react at a temperature (50-150°C) for a certain period of time (2-30h), and then purify to obtain 1,6-hexamethylene dicarbamate ester. Methyl hexamethylene dicarbamate (accounting for 30%) and corresponding surfactant (triethanolamine dodecylbenzenesulfonate accounts for 18%), defoamer (polydimethylsiloxane accounts for 18%) ratio 4%), solvent (isopropanol 9%) and deionized water (39%) are heated together (50-150° C.) to dissolve until uniformly mixed, and the preparation of the magnesium alloy etching additive is completed.

[0053] 2% additive, 13% nitric acid and 85% water are formed magnesium alloy etchant, and the magnesium alloy plate that development completes is fixed on the top rotary table of etching machine, by adjusting the etching solution stirring and sprinkling speed (280~420rpm) in the etching machine tank and Solution temperature (28~45 ℃), obtains the magnesium plate after etc...

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PUM

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Abstract

The invention provides application of a carbamate compound in a magnesium alloy etching additive. The carbamate compound achieves the effects of uniform corrosion inhibition and reducing of lateral corrosion on the magnesium alloy etching additive. The carbamate compound mainly comprises carbamate, 1,6-hexamethylenedicarbamate, isophorone dicarbamate, phenyl carbamate, toluene dicarbamate, 1,2-hexamethylene dicarbamate, 1,4-hexamethylene dicarbamate, and 4,4-diphenylmethane dicarbamate. The carbamate compound is matched with a corresponding surfactant, a defoaming agent, a solvent, deionized water and the like to form the additive for magnesium alloy etching, and the compound has the advantages that the use amount is small, and an etching process window is wide; meanwhile, the compound contains amino groups and ester groups, the composition of the additive is greatly simplified, the service life of the additive is prolonged, and the compound has obvious social and economic benefits.

Description

technical field [0001] The invention relates to the field of magnesium alloy printing plate making, in particular to the application of a carbamate compound in magnesium alloy etching additives. Background technique [0002] Magnesium alloy has low density, high specific strength, easy cutting, good damping and shock absorption and electromagnetic protection performance, and has broad application prospects in automobile, 3C, aerospace and other fields. But magnesium is an active metal, and its corrosion resistance is poor. Magnesium alloy etching plate just takes advantage of the characteristics of magnesium alloy, which are easy to corrode, low density and high specific strength. Magnesium alloy etched plates are mainly used in hot stamping and embossing in the printing field. It has small specific gravity, light weight, fast heat conduction, heat transfer and heat dissipation, high surface hardness, and easy demoulding; during the bronzing process, the magnesium plate hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/22
CPCC23F1/22
Inventor 毛佳骏谭学峰周建明
Owner 上海镁印科技有限公司
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