Phytic acid-doped polyaniline/polyphenylene sulfone coating composition and preparation method thereof

A polyphenylene sulfone and polyaniline technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of difficult to achieve industrialized production, complex means, strict temperature requirements, etc., and achieve enhanced anti-corrosion ability, high chemical stability, The effect of high heat distortion temperature

Active Publication Date: 2020-01-14
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Regarding the preparation method of phytic acid-doped polyaniline, there are some literature reports similar to the above, but the above-mentioned methods are complicated and have strict requirements on temperature, so it is difficult to realize real industrial production

Method used

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  • Phytic acid-doped polyaniline/polyphenylene sulfone coating composition and preparation method thereof
  • Phytic acid-doped polyaniline/polyphenylene sulfone coating composition and preparation method thereof
  • Phytic acid-doped polyaniline/polyphenylene sulfone coating composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Dilute the phytic acid aqueous solution with deionized water to 100mL of dilute phytic acid solution with a concentration of 0.10mol / L, then take 10g of N-methylpyrrolidone, 5g of aniline and 5g of ammonium persulfate respectively, take 50mL, 0.10mol / L Add aniline and N-methylpyrrolidone to the phytic acid solution to form aniline / N-methylpyrrolidone / phytic acid solution, take another 50mL, 0.10mol / L phytic acid solution and add ammonium persulfate to form ammonium persulfate / phytic acid solution . Put the prepared aniline / N-methylpyrrolidone / phytic acid solution into a 250mL three-necked flask, protect it with nitrogen, add a 100°C range thermometer to control the temperature, and stir at a water bath temperature of 35°C. The stirring speed is controlled At 60r / min, at the temperature of the water bath, add the ammonium persulfate / phytic acid solution that has been put into the dropping funnel, control the dropping speed at 3s 1 drop, and keep stirring the solution unt...

Embodiment 2

[0051] Dilute the phytic acid aqueous solution with pure water to 100mL of dilute phytic acid solution with a concentration of 0.05mol / L, then take 5g of N-methylpyrrolidone, 2.5g of aniline and 2g of ammonium persulfate respectively, and take 50mL and 0.05mol / L of Add aniline to the phytic acid solution to form an aniline / N-methylpyrrolidone / phytic acid solution, and add ammonium persulfate to another 25mL, 0.05mol / L phytic acid solution to form an ammonium persulfate / phytic acid solution. Put the prepared aniline / N-methylpyrrolidone / phytic acid solution into a 250mL three-necked flask, protect it with nitrogen, add a 100°C range thermometer to control the temperature, and stir at a water bath temperature of 40°C. The stirring speed is controlled At 80r / min, at the temperature of the water bath, add the ammonium persulfate / phytic acid solution that has been put into the dropping funnel, control the dropping speed at 3s 1 drop, and keep stirring the solution until the ammonium ...

Embodiment 3

[0053] Dilute the phytic acid aqueous solution with pure water to 100mL of dilute phytic acid solution with a concentration of 0.20mol / L, then take 3.75g of N-methylpyrrolidone, 7.5g of aniline and 3.75g of ammonium persulfate respectively, take 15mL, 0.20mol / L phytic acid solution was added with aniline to form aniline / N-methylpyrrolidone / phytic acid solution, and another 50mL, 0.20mol / L phytic acid solution was added to ammonium persulfate to form ammonium persulfate / phytic acid solution. Put the prepared aniline / N-methylpyrrolidone / phytic acid solution into a 250mL three-necked flask, protect it with nitrogen, add a 100°C range thermometer to control the temperature, and stir at a water bath temperature of 20°C. The stirring speed is controlled At 70r / min, at the temperature of the water bath, add the ammonium persulfate / phytic acid solution that has been put into the dropping funnel, control the dropping speed at 1 drop in 4s, and keep stirring the solution until the ammon...

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Abstract

The invention discloses a phytic acid-doped polyaniline / polyphenylene sulfone coating composition and a preparation method thereof, belonging to the technical field of coatings. The phytic acid-dopedpolyaniline / polyphenylene sulfone coating composition with excellent corrosion resistance is prepared by firstly preparing phytic acid-doped polyaniline and then adding the phytic acid-doped polyaniline into polyphenylene sulfone. According to the invention, the corrosion resistance of the polyphenylene sulfone coating is improved in the manner of forming a passive film between polyaniline and metal by utilizing the unique oxidation-reduction capability of the phytic acid-doped polyaniline; meanwhile, polyphosphoric acid groups carried by phytic acid are used for further promoting the coatingto form the passive film, so the corrosion resistance and adhesive force of the coating are enhanced, and a certain rust inhibition effect is achieved in the surface drying period of the coating.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a phytic acid-doped polyaniline / polyphenylene sulfone coating composition and a preparation method thereof. Background technique [0002] Polyaniline is a new type of polymer material, which has aroused great interest of researchers in the past two decades. Polyaniline has excellent electrical conductivity, unique redox performance, and can be easily passed through with cheap monomers. Synthesized by the current method, and polyaniline has good environmental stability and biocompatibility. These unique properties make polyaniline have great potential application value in anti-corrosion coatings, supercapacitors, solar cells, and sensors. Acid-doped polyaniline is due to the addition of different acidic substances, which partially enhances the electrical conductivity of polyaniline, which can make polyaniline a semiconductor to a certain extent. At present, there ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D181/06C09D5/08C08G73/02
CPCC08G73/0266C09D5/08C09D181/06C08L79/02C08K5/521
Inventor 关绍巍曹光兆祝世洋张博狄宜增王洪悦
Owner JILIN UNIV
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