Method for preparing double-component nano polyaniline-epoxy acrylate resin/polyurethane interpenetrating network conductive anticorrosive paint

Abstract

The invention relates to a method for preparing double-component nano polyaniline-epoxy acrylate resin / polyurethane interpenetrating network conductive anticorrosive paint. According to the method, a conductive interpenetrating network polymer coating is prepared through chemical reaction of a component A, that is, a nano polyaniline-epoxy acrylate resin system, and a component B, that is, a castor oil polyurethane prepolymer containing an isocyanate end group under the action of an initiator and a catalyst, wherein the component A is prepared by drying a mixture obtained through in-situ emulsion polymerization of aniline in epoxy acrylate resin, adding an allyl monomer, a catalyst, a polymerization inhibitor, a preservative, a light stabilizer, packing and the like, and by uniformly stirring the components; the component B, that is, the polyurethane prepolymer, is prepared by enabling castor oil and diisocyanate to react, adding an initiator, a promoter and a proper amount of a solvent, and by uniformly stirring the components. The paint is simple in process equipment, convenient to operate, beneficial to large-scale industrial production, high in solid content, stable in anticorrosion property and very good in mechanical property, aging resistance, chemical corrosion resistance and environmental friendliness.

Description

technical field

[0001] The invention relates to a preparation method of a two-component nano polyaniline-epoxy acrylic resin / polyurethane interpenetrating network conductive anticorrosion coating. It belongs to polymer conductive anti-corrosion coating in polymer materials and anti-corrosion materials. Background technique

[0002] Conductive anti-corrosion coating is a new type of anti-corrosion coating. It can not only conduct current and eliminate the accumulated static charge on the surface of the substrate, but also has good anti-corrosion performance. It is a functional special coating that can be coated on any shape of substrate. surface or interior. Conductive anti-corrosion coatings have many advantages such as convenient construction, simple equipment, low cost and wide application range. They are mainly used in petroleum, chemical, construction, aviation and military fields. Conductive anti-corrosion coatings are generally added conductive materials (such as met...

Examples

Embodiment 1

[0020] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: with aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid ( 14.0Wt%), water (45.0Wt%), xylene (24.0Wt%), after mixing, ice-water bath reaction 6h obtains the mixture of nano polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt% ;

[0021] (2) Preparation of component A: get the above-mentioned prepared nano-polyaniline-epoxy acrylic resin mixture (58.0Wt%), vinyl cross-linking monomer methyl methacrylate (35.7Wt%), catalyst dibutyl Tin dilaurate (1.25Wt%), polymerization inhibitor Hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), get filler 500 orders two Silicon oxide (2.55wt%) was dried at 60° C. for two hours, stirred and mixed uniformly to obtain.

[0022] (3) Preparation of component B: castor oil (32.0Wt%) was dehydrated under reduced pressure at 100°C and 0.08MPa vacu...

Embodiment 2

[0025] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid (14.0 Wt%), water (45.0Wt%), dimethylbenzene (24.0Wt%), ice-water bath reaction 6h, obtain the mixture of nano-polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt%;

[0026](2) Preparation of the first component: nanometer polyaniline-epoxy acrylic resin mixture (58.0Wt%), ethylenic crosslinking monomer styrene (20.0Wt%), methyl methacrylate (15.7Wt%), catalyst Dibutyltin dilaurate (1.25Wt%), polymerization inhibitor hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), filler 500 Mesh silica (2.55wt%) was dried at 100°C for two hours, stirred and mixed uniformly to obtain.

[0027] (3) Preparation of component B: Castor oil (32.0Wt%) was dehydrated under reduced pressure at 120°C and 0.08MPa vacuum for 1.5 hours, for subseque...

Embodiment 3

[0030] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid (14.0 Wt%), water (45.0Wt%), dimethylbenzene (24.0Wt%), ice-water bath reaction 6h, obtain the mixture of nano-polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt%;

[0031] (2) Preparation of the first component: nanometer polyaniline-epoxy acrylic resin mixture (58.0Wt%), ethylenic crosslinking monomer styrene (20.0Wt%), methyl methacrylate (15.7Wt%), catalyst Dibutyltin dilaurate (0.25Wt%), polymerization inhibitor hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), filler 500 Mesh silica (2.55Wt%), etc., obtained by stirring and mixing uniformly.

[0032] (3) Preparation of the second component: castor oil (32.0Wt%), 2,4-toluene diisocyanate (15.0Wt%), xylene (4.2Wt%), ethyl acetate (2.0Wt%), initiator couple Azodiisobu...

technical field

[0001] The invention relates to a preparation method of a two-component nano polyaniline-epoxy acrylic resin / polyurethane interpenetrating network conductive anticorrosion coating. It belongs to polymer conductive anti-corrosion coating in polymer materials and anti-corrosion materials. Background technique

[0002] Conductive anti-corrosion coating is a new type of anti-corrosion coating. It can not only conduct current and eliminate the accumulated static charge on the surface of the substrate, but also has good anti-corrosion performance. It is a functional special coating that can be coated on any shape of substrate. surface or interior. Conductive anti-corrosion coatings have many advantages such as convenient construction, simple equipment, low cost and wide application range. They are mainly used in petroleum, chemical, construction, aviation and military fields. Conductive anti-corrosion coatings are generally added conductive materials (such as met...

Examples

Embodiment 1

[0020] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: with aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid ( 14.0Wt%), water (45.0Wt%), xylene (24.0Wt%), after mixing, ice-water bath reaction 6h obtains the mixture of nano polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt% ;

[0021] (2) Preparation of component A: get the above-mentioned prepared nano-polyaniline-epoxy acrylic resin mixture (58.0Wt%), vinyl cross-linking monomer methyl methacrylate (35.7Wt%), catalyst dibutyl Tin dilaurate (1.25Wt%), polymerization inhibitor Hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), get filler 500 orders two Silicon oxide (2.55wt%) was dried at 60° C. for two hours, stirred and mixed uniformly to obtain.

[0022] (3) Preparation of component B: castor oil (32.0Wt%) was dehydrated under reduced pressure at 100°C and 0.08MPa vacu...

Embodiment 2

[0025] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid (14.0 Wt%), water (45.0Wt%), dimethylbenzene (24.0Wt%), ice-water bath reaction 6h, obtain the mixture of nano-polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt%;

[0026](2) Preparation of the first component: nanometer polyaniline-epoxy acrylic resin mixture (58.0Wt%), ethylenic crosslinking monomer styrene (20.0Wt%), methyl methacrylate (15.7Wt%), catalyst Dibutyltin dilaurate (1.25Wt%), polymerization inhibitor hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), filler 500 Mesh silica (2.55wt%) was dried at 100°C for two hours, stirred and mixed uniformly to obtain.

[0027] (3) Preparation of component B: Castor oil (32.0Wt%) was dehydrated under reduced pressure at 120°C and 0.08MPa vacuum for 1.5 hours, for subseque...

Embodiment 3

[0030] (1) The preparation of nano polyaniline-epoxy acrylic resin mixture: aniline (2.78Wt%), epoxy acrylic resin (6.0Wt%), ammonium persulfate (8.4Wt%), dodecylbenzenesulfonic acid (14.0 Wt%), water (45.0Wt%), dimethylbenzene (24.0Wt%), ice-water bath reaction 6h, obtain the mixture of nano-polyaniline and epoxy acrylic resin after drying, wherein polyaniline content is 4.44Wt%;

[0031] (2) Preparation of the first component: nanometer polyaniline-epoxy acrylic resin mixture (58.0Wt%), ethylenic crosslinking monomer styrene (20.0Wt%), methyl methacrylate (15.7Wt%), catalyst Dibutyltin dilaurate (0.25Wt%), polymerization inhibitor hydroquinone (0.65Wt%), preservative zinc powder (2.55Wt%), antioxidant UV-327 (0.3%Wt), filler 500 Mesh silica (2.55Wt%), etc., obtained by stirring and mixing uniformly.

[0032] (3) Preparation of the second component: castor oil (32.0Wt%), 2,4-toluene diisocyanate (15.0Wt%), xylene (4.2Wt%), ethyl acetate (2.0Wt%), initiator couple Azodiisobu...