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A kind of titanium nitride/polyaniline composite conductive anti-corrosion powder coating and preparation method thereof

A technology of composite conductive and powder coatings, which is applied in the direction of powder coatings, conductive coatings, anti-corrosion coatings, etc., and can solve problems such as electrochemical corrosion

Inactive Publication Date: 2020-12-29
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to comprehensively overcome and solve the three major corrosion problems of electrochemical corrosion, mechanical corrosion and microbial corrosion faced by my country's nautical ship industry in the marine environment at the present stage, the purpose of the present invention is to provide a titanium nitride / polyaniline composite Preparation method of conductive anticorrosion powder coating

Method used

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  • A kind of titanium nitride/polyaniline composite conductive anti-corrosion powder coating and preparation method thereof
  • A kind of titanium nitride/polyaniline composite conductive anti-corrosion powder coating and preparation method thereof
  • A kind of titanium nitride/polyaniline composite conductive anti-corrosion powder coating and preparation method thereof

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Embodiment 1

[0039] The invention discloses a preparation method of titanium nitride / polyaniline composite conductive anticorrosion powder coating, which comprises the preparation of conductive filler and the preparation of titanium nitride / polyaniline composite conductive anticorrosion powder coating.

[0040] Step 1: Preparation of conductive filler

[0041] (1) First, prepare a hydrochloric acid solution with a concentration of 1.0 mol / L; then, weigh titanium nitride, aniline, and hydrochloric acid according to the mass-volume ratio of titanium nitride, aniline, and hydrochloric acid solution in a ratio of 0.01 g: 0.23 g: 50 ml solution; mix the weighed titanium nitride and aniline into the hydrochloric acid solution, and carry out ultrasonic dispersion, so that the titanium nitride and aniline are uniformly mixed in the hydrochloric acid solution to obtain a titanium nitride-aniline-hydrochloric acid mixed solution;

[0042] (2) Weigh the ammonium persulfate and hydrochloric acid solut...

Embodiment 2

[0051] The invention discloses a preparation method of titanium nitride / polyaniline composite conductive anticorrosion powder coating, which comprises the preparation of conductive filler and the preparation of titanium nitride / polyaniline composite conductive anticorrosion powder coating.

[0052] Step 1: Preparation of conductive filler

[0053] (1) First, prepare a hydrochloric acid solution with a concentration of 1.0 mol / L; then, weigh titanium nitride, aniline and hydrochloric acid according to the mass volume ratio of titanium nitride, aniline and hydrochloric acid solution at a ratio of 0.04 g: 0.23 g: 50 ml solution; mix the weighed titanium nitride and aniline into the hydrochloric acid solution, and carry out ultrasonic dispersion, so that the titanium nitride and aniline are uniformly mixed in the hydrochloric acid solution to obtain a titanium nitride-aniline-hydrochloric acid mixed solution;

[0054] (2) Weigh the ammonium persulfate and hydrochloric acid solutio...

Embodiment 3

[0061] The invention discloses a preparation method of titanium nitride / polyaniline composite conductive anticorrosion powder coating, which comprises the preparation of conductive filler and the preparation of titanium nitride / polyaniline composite conductive anticorrosion powder coating.

[0062] Step 1: Preparation of conductive filler

[0063] (1) First, prepare a hydrochloric acid solution with a concentration of 1.0 mol / L; then, weigh titanium nitride, aniline and hydrochloric acid according to the mass volume ratio of titanium nitride, aniline and hydrochloric acid solution at a ratio of 0.08 g: 0.23 g: 50 ml solution; mix the weighed titanium nitride and aniline into the hydrochloric acid solution, and carry out ultrasonic dispersion, so that the titanium nitride and aniline are uniformly mixed in the hydrochloric acid solution to obtain a titanium nitride-aniline-hydrochloric acid mixed solution;

[0064] (2) Weigh the ammonium persulfate and hydrochloric acid solutio...

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Abstract

The invention discloses a preparation method of a titanium nitride / polyaniline composite conductive anticorrosive powder coating. The coating comprises the following raw materials in parts by mass: 2-5 parts of conductive filler, 30 parts of polyester resin, 2.25 parts of a curing agent, 0.25 part of a leveling agent, 0.15 part of a brightener, and 0.05 part of a curing accelerator. First, a titanium nitride / polyaniline composite is prepared by chemical oxidation by taking nano titanium nitride having excellent conductivity as a nucleating material and ammonium persulfate as an oxidizing agent. Then, the composite is introduced as conductive filler into the traditional polyester powder coating formula to prepare a polyester powder coating having both conductive and anticorrosive functions.When the coating is applied to painting of a marine ship shell, the anti-microbial, anti-electrochemical corrosion and anti-mechanical corrosion properties of the ship shell can be comprehensively improved, and the service life of the ship coating can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a titanium nitride / polyaniline composite conductive anti-corrosion powder coating and a preparation method thereof. Background technique [0002] In world trade, more than 80% of freight is transported by sea, and the shipping industry has become an indispensable and important pillar in the development of the world economy. Marine ships have been driving for a long time in the environment of alternating dry and wet and rich in chloride and sulfate electrolytes, and the electrochemical corrosion and mechanical corrosion are serious, which causes huge economic losses to my country's shipbuilding industry every year. On the other hand, under suitable growth conditions, marine organisms will adsorb and multiply on the hull shell, destroy the metal surface coating, change the local support of the metal surface, form an oxygen concentration battery and aggravate the corrosion o...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/03C09D5/24C09D5/08C09D7/65C09D7/63C08G73/02
CPCC08G73/0266C08K2201/001C08K2201/003C08L2201/08C08L2205/035C09D5/033C09D5/08C09D5/24C09D167/00C08L79/02C08K3/28
Inventor 司徒粤纪维维黄洪吴延军史英骥
Owner SOUTH CHINA UNIV OF TECH
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