Multi-active adsorption center corrosion inhibitor composition and preparation method thereof
An active adsorption and corrosion inhibitor technology, applied in the field of metal corrosion protection, can solve problems such as weak temperature adaptability, unstable film formation on the surface of metal internal components, etc., achieve strong hydrophobicity, strengthen surface adsorption and binding force, and improve electron donating effect of ability
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[0027] Example 1
[0028] Take 10g of hydrogen-containing polydimethylsiloxane with an average molecular weight of about 2000 (active hydrogen content is about 0.5wt%) and 1g of 4-vinylpyridine containing 0.1wt% of hydroquinone polymerization inhibitor, and add 350mL of ethanol In a round-bottomed flask, stir continuously while heating to 65±5℃ in a constant temperature water bath, and then add 10 drops of 0.05mol / L chloroplatinic acid ethanol solution with a dropper. The reaction process is carried out for 5 hours under the protection of nitrogen. The mixture was distilled under reduced pressure to remove the solvent. Then inject 400 mL of water into the flask while stirring at high speed, and gradually add about 0.6 g of 4-hydroxyaniline during the stirring process, then increase the temperature to 80±5°C, and add about 5 g 0.1 mol / L sodium hydroxide solution dropwise. After fully reacting for 2 hours, the reaction mixture is distilled under reduced pressure to remove the solv...
Example Embodiment
[0029] Example 2
[0030] Take 15g of hydrogen-containing polydimethylsiloxane with an average molecular weight of about 2500 (active hydrogen content is about 0.5wt%) and 1g of 4-vinylpyridine containing 0.1wt% hydroquinone polymerization inhibitor, and add 450mL ethanol In a round-bottomed flask, stir continuously while heating to 65±5℃ in a constant temperature water bath, and then add 10 drops of 0.05mol / L chloroplatinic acid ethanol solution with a dropper. The reaction process is carried out for 8 hours under the protection of nitrogen. The mixture was distilled under reduced pressure to remove the solvent. Then inject 500mL of water into the flask while stirring at high speed, and gradually add 1.0g of 4-hydroxyaniline during the stirring process, then increase the temperature to 80±5℃, and add 5g 0.1mol / L sodium hydroxide solution dropwise to fully react After 4 hours, the reaction mixture was distilled under reduced pressure to remove the solvent and then filtered to re...
Example Embodiment
[0031] Example 3
[0032] Take 10g of hydrogen-containing polydimethylsiloxane with an average molecular weight of about 2000 (active hydrogen content is about 0.5wt%) and 1g of 4-vinylpyridine containing 0.1wt% of hydroquinone polymerization inhibitor, and add 350mL of ethanol In a round-bottomed flask, stir continuously while heating to 65±5℃ in a constant temperature water bath, then add 10 drops of 0.05mol / L chloroplatinic acid ethanol solution with a dropper. The reaction process is carried out for 8 hours under the protection of nitrogen. The mixture was distilled under reduced pressure to remove the solvent. Then inject 450 mL of water into the flask while stirring at high speed, and gradually add 1.0 g of p-hydroxydiphenylamine during the stirring process, then increase the temperature to 80±5°C, and add 5 g of 0.1 mol / L sodium hydroxide solution dropwise. After reacting for 4 hours, the reaction mixture was distilled under reduced pressure to remove the solvent, and the...
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