CN110894393A - Aqueous single-component conductive flame-retardant coating and preparation method thereof - Google Patents
Aqueous single-component conductive flame-retardant coating and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a water-based single-component conductive flame-retardant coating and a preparation method thereof, belonging to the technical field of water-based coatings. The composition comprises the following components in parts by weight: 5-15 parts of deionized water I, 0.1-1.0 part of amine neutralizer, 1.0-10.0 parts of wetting dispersant, 0.1-1.0 part of defoaming agent, 5.0-15.0 parts of conductive carbon black, 20-35 parts of waterborne epoxy-amine adduct dispersion resin I, 1.0-10.0 parts of deionized water II, 20-35 parts of waterborne epoxy-amine adduct dispersion resin II, 1.0-10.0 parts of waterborne flame retardant, 5.0-15.0 parts of conductive powder, 0.1-1.0 part of surfactant, 0.1-1.0 part of substrate wetting agent, 0.1-1.0 part of flash rust inhibitor, 0.1-1.0 part of thickener and 0.1-1.0 part of cosolvent. The invention has the beneficial effects that: (1) the invention adopts water-based materials in the whole life cycle from production to use, and is environment-friendly; (2) good conductivity, corrosion resistance, high hardness, good adhesive force, good impact resistance and flame retardant function.
Description
Technical Field
The invention belongs to the technical field of water-based coatings, and particularly relates to a water-based single-component conductive flame-retardant coating and a preparation method thereof.
Background
At present, the electrical appliance and communication industries in China are rapidly developed, the yield is continuously increased, but the coatings used by a plurality of electrical appliances are oily, the oily coatings contain a large amount of flammable, explosive, toxic and harmful substances such as toluene and xylene, and the organic solvents discharged into the atmosphere reach tens of thousands of tons every year, so that serious environmental pollution and resource waste are caused, the body health of residents is also influenced, and particularly, serious body injuries are caused to the production of the oily coatings and constructors.
In patent No. CN101691470A, an electrically conductive and flame retardant water-based paint, specifically a two-component epoxy resin water-based paint, is disclosed. Although this water-based paint is a water-based paint, it does not have any outstanding effect on hardness and corrosion resistance.
Disclosure of Invention
Aiming at the problems that the traditional conductive flame-retardant coating is an oily coating and the water-based coating has poor hardness, poor corrosion resistance and the like, the invention provides a water-based single-component conductive flame-retardant coating and a preparation method thereof so as to solve the problems. The invention is a water-based product, adopts water-based in the whole life cycle from raw materials to production and use, is green and environment-friendly, has a flame retardant function, is safe and environment-friendly, overcomes the defects of the traditional conductive coating, is widely applied to coating in the electrical appliance and communication industries, has other characteristics of high hardness, good adhesive force, good corrosion resistance and the like, and can adapt to various marketization requirements.
The waterborne single-component conductive flame-retardant coating comprises the following components in parts by weight: 5-15 parts of deionized water I, 0.1-1.0 part of amine neutralizer, 1.0-10.0 parts of wetting dispersant, 0.1-1.0 part of defoaming agent, 5.0-15.0 parts of conductive carbon black, 20-35 parts of waterborne epoxy-amine adduct dispersion resin I, 1.0-10.0 parts of deionized water II, 20-35 parts of waterborne epoxy-amine adduct dispersion resin II, 1.0-10.0 parts of waterborne flame retardant, 5.0-15.0 parts of conductive powder, 0.1-1.0 part of surfactant, 0.1-1.0 part of substrate wetting agent, 0.1-1.0 part of flash rust inhibitor, 0.1-1.0 part of thickener and 0.1-1.0 part of cosolvent.
Preferably, the composition comprises the following components in parts by weight: 5-10 parts of deionized water I, 0.1-0.5 part of amine neutralizer, 2.0-8.0 parts of wetting dispersant, 0.1-0.5 part of defoaming agent, 8.0-15.0 parts of conductive carbon black, 25-35 parts of waterborne epoxy-amine adduct dispersion resin I, 2.0-8.0 parts of deionized water II, 20-30 parts of waterborne epoxy-amine adduct dispersion resin II, 2.0-8.0 parts of waterborne flame retardant, 5.0-10.0 parts of conductive powder, 0.1-0.5 part of surfactant, 0.1-0.5 part of substrate wetting agent, 0.2-0.8 part of flash rust inhibitor, 0.2-0.8 part of thickener and 0.2-0.8 part of cosolvent.
Preferably, the aqueous epoxy-amine adduct dispersion resin is a film-forming substance of the invention, is from Zhan Xin resin Co., Ltd, has the characteristics of good adhesion, excellent water resistance, good chemical stability, excellent corrosion resistance and rapid hardness development, can be self-dried at normal temperature or baked at low and medium temperature, has high film-forming hardness, and has impact strength of up to 50 kg.cm.
Preferably, the amine neutralizer is DMEA from Iseman, and the amine neutralizer has high purity and good amine neutralizing effect.
Preferably, the wetting dispersant is W4090 from Vebes, which is a hydrophilic high molecular polymer, has good viscosity-reducing and dispersing effects, effectively prevents pigment flocculation, and improves storage stability.
Preferably, the defoaming agent is Tego825 from Digao, has good defoaming effect, can be added in a grinding or paint mixing stage, and is easy to disperse.
Preferably, the conductive carbon black is ENSACO 250G from the ultra-dense state of Switzerland, and the conductive carbon black has good conductivity and is easy to disperse.
Preferably, the water-based flame retardant is prepared from Zhejiang Asahson non-halogen smoke-eliminating flame retardant, which is a non-halogen smoke-eliminating ammonium polyphosphate flame retardant with good flame-retardant effect and environmental protection.
Preferably, the conductive powder is from North Chen Xin import and export Limited company in Wuhan City, which is conductive nickel powder with the purity of 99.7 percent and good conductive effect and the fineness of 5 microns.
Preferably, the surfactant is Tego500 from Digao, which is a nonionic surfactant and has the functions of wetting agent, defoaming, substrate wetting and pigment wetting, and does not stabilize bubbles.
Preferably, the substrate wetting agent is BYK346 from Bick, Germany, which can improve the substrate wetting of aqueous systems, is easy to disperse, and can be added at any stage of the manufacturing process.
Preferably, the flash rust inhibitor is from Qingdao Enze chemical industry Co., Ltd, and has the advantages of excellent flash rust prevention effect and good system compatibility.
Preferably, the thickener is derived from modemus, which has high thickening efficiency in the medium and low shear rate range and good system compatibility.
The invention also aims to provide a preparation method of the aqueous single-component conductive flame-retardant coating, which comprises the following specific steps:
(1) firstly adding deionized water I, sequentially adding an amine neutralizer, a wetting dispersant and a defoaming agent into a grinding cylinder under medium-speed stirring, and uniformly stirring at the stirring speed of 800-1000 rpm/min for 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding the conductive carbon black and the epoxy-amine adduct dispersion resin I under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by deionized II water;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding epoxy-amine adduct dispersion resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and uniformly stirring for 10-15 min; increasing the rotating speed to 1000rpm/min, adding the water-based flame retardant under stirring for 8-10 min, then adding the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding the surfactant, the substrate wetting agent and the anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing a thickening agent and a cosolvent, then slowly adding the mixture into a coating tank under stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the coating, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
The invention has the beneficial effects that:
(1) the invention is a water-based product, adopts water-based materials in the whole life cycle from production to use, and is green and environment-friendly.
(2) The product of the invention has good conductivity, anti-corrosion function and good anti-corrosion effect; the hardness is high, and the high hardness can be achieved by air drying at normal temperature; the adhesive force is good, and the adhesive force on the carbon steel can reach 0 grade; the impact resistance is good; has the function of flame retardance.
(3) The product of the invention has the flame retardant function, overcomes the defects of the traditional conductive coating, is widely applied to the coating of the electrical appliance and communication industries, shows higher electromagnetic shielding performance, shields the electromagnetic waves generated by the coating, has other characteristics of high hardness, good adhesive force, good corrosion resistance and the like, and can adapt to various marketization requirements.
(4) The preparation method disclosed by the invention is simple in process, mild in condition, safe and environment-friendly, and more suitable for industrialized mass production.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The waterborne single-component conductive flame-retardant coating comprises the following components in parts by weight: 7.6 parts of deionized water I, 0.4 part of amine neutralizer, 4.8 parts of wetting dispersant, 0.4 part of defoaming agent, 10.0 parts of conductive carbon black, 29 parts of waterborne epoxy-amine adduct dispersion resin I, 4.0 parts of deionized water II, 25.9 parts of waterborne epoxy-amine adduct dispersion resin II, 6.0 parts of waterborne flame retardant, 9.5 parts of conductive powder, 0.4 part of surfactant, 0.3 part of base material wetting agent, 0.5 part of flash rust inhibitor, 0.6 part of thickener and 0.6 part of cosolvent.
The preparation method of the aqueous single-component conductive flame-retardant coating comprises the following specific steps:
(1) adding 7.6 parts of deionized water I, sequentially adding 0.4 part of amine neutralizer, 4.8 parts of wetting dispersant and 0.4 part of defoaming agent into a grinding cylinder under medium-speed stirring, and uniformly stirring at the stirring speed of 800-1000 rpm/min for 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding 10.0 parts of conductive carbon black and 29 parts of epoxy-amine adduct dispersion resin under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by using 4.0 parts of deionized water II;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding 25.9 parts of epoxy-amine adduct dispersion resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and stirring uniformly for 10-15 min; increasing the rotating speed to 1000rpm/min, adding 6.0 parts of the water-based flame retardant under stirring for 8-10 min, then adding 9.5 parts of the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding 0.4 part of surfactant, 0.3 part of base material wetting agent and 0.5 part of anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing 0.6 part of thickening agent and 0.6 part of cosolvent, slowly adding the mixture into a paint tank while stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the paint, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
Example 2
The waterborne single-component conductive flame-retardant coating comprises the following components in parts by weight: 7.5 parts of deionized water I, 0.45 part of amine neutralizer, 5.2 parts of wetting dispersant, 0.35 part of defoaming agent, 10.5 parts of conductive carbon black, 31 parts of waterborne epoxy-amine adduct dispersion resin I, 4.5 parts of deionized water II, 24.5 parts of waterborne epoxy-amine adduct dispersion resin II, 5.5 parts of waterborne flame retardant, 8.4 parts of conductive powder, 0.35 part of surfactant, 0.3 part of base material wetting agent, 0.55 part of flash rust inhibitor, 0.45 part of thickener and 0.45 part of cosolvent.
The preparation method of the aqueous single-component conductive flame-retardant coating comprises the following specific steps:
(1) adding 7.5 parts of deionized water I, sequentially adding 0.45 part of amine neutralizer, 5.2 parts of wetting dispersant and 0.35 part of defoaming agent into a grinding cylinder under medium-speed stirring, and uniformly stirring at the stirring speed of 800-1000 rpm/min for 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding 10.5 parts of conductive carbon black and 31 parts of epoxy-amine adduct dispersion resin under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by using 4.5 parts of deionized water II;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding 24.5 parts of epoxy-amine adduct dispersion resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and stirring uniformly for 10-15 min; increasing the rotating speed to 1000rpm/min, adding 5.5 parts of the water-based flame retardant under stirring for 8-10 min, then adding 8.4 parts of the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding 0.35 part of surfactant, 0.3 part of base material wetting agent and 0.55 part of anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing 0.45 part of thickening agent and 0.45 part of cosolvent, slowly adding the mixture into a paint tank while stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the paint, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
Example 3
The waterborne single-component conductive flame-retardant coating comprises the following components in parts by weight: 8.0 parts of deionized water I, 0.4 part of amine neutralizer, 5.5 parts of wetting dispersant, 0.3 part of defoaming agent, 11.0 parts of conductive carbon black, 30 parts of waterborne epoxy-amine adduct dispersion resin I, 5.0 parts of deionized water II, 23.4 parts of waterborne epoxy-amine adduct dispersion resin II, 5.3 parts of waterborne flame retardant, 8.6 parts of conductive powder, 0.35 part of surfactant, 0.35 part of base material wetting agent, 0.6 part of flash rust inhibitor, 0.6 part of thickener and 0.6 part of cosolvent.
The preparation method of the aqueous single-component conductive flame-retardant coating comprises the following specific steps:
(1) firstly, 8.0 parts of deionized water I is added, 0.4 part of amine neutralizer, 5.5 parts of wetting dispersant and 0.3 part of defoaming agent are sequentially added into a grinding cylinder under medium-speed stirring, and the mixture is uniformly stirred, wherein the stirring speed is 800-1000 rpm/min, and the stirring time is 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding 11.0 parts of conductive carbon black and 30 parts of epoxy-amine adduct dispersion resin I under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by using 5.0 parts of deionized water II;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding 23.4 parts of epoxy-amine adduct dispersion resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and stirring uniformly for 10-15 min; increasing the rotating speed to 1000rpm/min, adding 5.3 parts of the water-based flame retardant under stirring for 8-10 min, then adding 8.6 parts of the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding 0.35 part of surfactant, 0.35 part of base material wetting agent and 0.6 part of anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing 0.6 part of thickening agent and 0.6 part of cosolvent, slowly adding the mixture into a paint tank while stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the paint, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
Example 4
The waterborne single-component conductive flame-retardant coating comprises the following components in parts by weight: 8.5 parts of deionized water I, 0.35 part of amine neutralizer, 5.6 parts of wetting dispersant, 0.4 part of defoaming agent, 11.5 parts of conductive carbon black, 29.5 parts of waterborne epoxy-amine adduct dispersion resin I, 6.0 parts of deionized water II, 22.0 parts of waterborne epoxy-amine adduct dispersion resin II, 5.7 parts of waterborne flame retardant, 8.0 parts of conductive powder, 0.4 part of surfactant, 0.35 part of base material wetting agent, 0.7 part of flash rust inhibitor, 0.5 part of thickener and 0.5 part of cosolvent.
The preparation method of the aqueous single-component conductive flame-retardant coating comprises the following specific steps:
(1) firstly, 8.5 parts of deionized water I is added, 0.35 part of amine neutralizer, 5.6 parts of wetting dispersant and 0.4 part of defoaming agent are sequentially added into a grinding cylinder under medium-speed stirring, and the mixture is uniformly stirred, wherein the stirring speed is 800-1000 rpm/min, and the stirring time is 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding 11.5 parts of conductive carbon black and 29.5 parts of epoxy-amine adduct dispersion resin under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning slurry by 6.0 parts of deionized water II;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding 22.0 parts of epoxy-amine adduct dispersion resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and stirring uniformly for 10-15 min; increasing the rotating speed to 1000rpm/min, adding 5.7 parts of the water-based flame retardant under stirring for 8-10 min, then adding 8.0 parts of the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding 0.4 part of surfactant, 0.35 part of base material wetting agent and 0.7 part of anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing 0.5 part of thickening agent and 0.5 part of cosolvent, slowly adding the mixture into a paint tank while stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the paint, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
Comparative example 1
The water-based paint comprises the following components in parts by weight: 31 parts of deionized water I, 0.4 part of amine neutralizer, 3.8 parts of wetting dispersant, 0.4 part of defoaming agent, 11 parts of conductive carbon black, 10 parts of waterborne polyurethane modified resin I, 4 parts of deionized water II, 25 parts of waterborne polyurethane modified resin II, 12 parts of flame retardant, 0.4 part of surfactant, 0.3 part of substrate wetting agent, 0.5 part of flash rust inhibitor, 0.6 part of thickener and 0.6 part of cosolvent.
The method comprises the following specific steps:
(1) firstly, 31 parts of deionized water I is added, 0.4 part of amine neutralizer, 3.8 parts of wetting dispersant and 0.4 part of defoaming agent are sequentially added into a grinding cylinder under medium-speed stirring, and the mixture is uniformly stirred, wherein the stirring speed is 800-1000 rpm/min, and the stirring time is 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding 11 parts of conductive carbon black and 10 parts of waterborne polyurethane modified resin I under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by using 4 parts of deionized water II;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding 25 parts of the waterborne polyurethane modified resin II into the coating tank, stirring at a low speed of 400-600 rpm/min, slowly adding the slurry into the coating tank, and stirring uniformly for 10-15 min; increasing the rotating speed to 1000rpm/min, adding 12 parts of the water-based flame retardant under stirring for 8-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding 0.4 part of surfactant, 0.3 part of base material wetting agent and 0.5 part of anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing 0.6 part of thickening agent and 0.6 part of cosolvent, slowly adding the mixture into a paint tank while stirring, wherein the stirring speed is 1000-1200 rpm/min, observing the viscosity of the paint, and stirring for 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
The products prepared in example 1, example 2, example 3, example 4 and comparative example 1 were tested and the test results are shown in table 1 below:
TABLE 1 product test results
The detection on the product shows that the aqueous single-component conductive flame-retardant coating is environment-friendly, has good anticorrosion effect, can achieve high hardness by air drying at normal temperature, and has good adhesive force and impact resistance; has the function of flame retardance; has obvious advantages in the conductivity and the storage stability of the product. The parameters of example 3 were optimized.
Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The aqueous single-component conductive flame-retardant coating is characterized by comprising the following components in parts by weight: 5-15 parts of deionized water I, 0.1-1.0 part of amine neutralizer, 1.0-10.0 parts of wetting dispersant, 0.1-1.0 part of defoaming agent, 5.0-15.0 parts of conductive carbon black, 20-35 parts of waterborne epoxy-amine adduct dispersion resin I, 1.0-10.0 parts of deionized water II, 20-35 parts of waterborne epoxy-amine adduct dispersion resin II, 1.0-10.0 parts of waterborne flame retardant, 5.0-15.0 parts of conductive powder, 0.1-1.0 part of surfactant, 0.1-1.0 part of substrate wetting agent, 0.1-1.0 part of flash rust inhibitor, 0.1-1.0 part of thickener and 0.1-1.0 part of cosolvent.
2. The aqueous single-component conductive flame-retardant coating according to claim 1, comprising the following components in parts by weight: 5-10 parts of deionized water I, 0.1-0.5 part of amine neutralizer, 2.0-8.0 parts of wetting dispersant, 0.1-0.5 part of defoaming agent, 8.0-15.0 parts of conductive carbon black, 25-35 parts of waterborne epoxy-amine adduct dispersion resin I, 2.0-8.0 parts of deionized water II, 20-30 parts of waterborne epoxy-amine adduct dispersion resin II, 2.0-8.0 parts of waterborne flame retardant, 5.0-10.0 parts of conductive powder, 0.1-0.5 part of surfactant, 0.1-0.5 part of substrate wetting agent, 0.2-0.8 part of flash rust inhibitor, 0.2-0.8 part of thickener and 0.2-0.8 part of cosolvent.
3. The waterborne one-component electrically conductive and flame retardant coating of claim 1, wherein the waterborne epoxy-amine adduct dispersion resin is a film-forming material produced by Zhan Xin resins Co.
4. The waterborne one-component conductive flame retardant coating of claim 1, wherein the amine neutralizer is DMEA of eastman.
5. The aqueous one-component conductive flame-retardant coating according to claim 1, wherein the wetting dispersant is weibull's W4090.
6. The aqueous one-component conductive flame retardant coating of claim 1, wherein the defoamer is Tego825 digao.
7. The aqueous one-component conductive flame-retardant coating of claim 1, wherein the conductive carbon black is ENSACO 250G, tex high in swiss.
8. The aqueous single-component conductive flame-retardant coating according to claim 1, wherein the aqueous flame retardant is a non-halogen smoke-eliminating ammonium polyphosphate flame retardant produced by Zhejiang Asahi non-halogen smoke-eliminating flame retardant Co.
9. The aqueous monocomponent conductive flame retardant coating according to claim 1, wherein the conductive powder is conductive nickel powder produced by north chen star import & export ltd, wuhan city;
more preferably, the surfactant is a nonionic surfactant and is Tego 500;
further preferably, the substrate wetting agent is BYK346 of BYK chemical, germany;
further preferably, the anti-flash rust agent is produced by the Qingdao Enze chemical industry Co.Ltd;
further preferably, the thickener is produced by dele hamming.
10. The preparation method of the water-based single-component conductive flame-retardant coating is characterized by comprising the following specific steps of:
(1) firstly adding deionized water I, sequentially adding an amine neutralizer, a wetting dispersant and a defoaming agent into a grinding cylinder under stirring, and uniformly stirring at the stirring speed of 800-1000 rpm/min for 5-10 min;
(2) adjusting the stirring speed to 600rpm/min, adding the conductive carbon black and the epoxy-amine adduct dispersion resin I under stirring, and uniformly stirring for 10-15 min;
(3) adding grinding pickaxe beads accounting for 75-85% of the grinding weight, replacing a grinding disc, opening condensed water, adjusting the rotating speed to 3000-3500 rpm/min, starting grinding until the fineness is less than or equal to 25 microns, and cleaning the slurry by deionized II water;
(4) taking out the ground slurry for later use;
(5) taking a new coating tank, replacing a dispersion disc, adding epoxy-amine adduct dispersion resin II into the coating tank, slowly adding the slurry into the coating tank at the rotating speed of 400-600 rpm/min, and uniformly stirring for 10-15 min; increasing the rotating speed to 1000rpm/min, adding the water-based flame retardant under stirring for 8-10 min, then adding the conductive powder under stirring, and continuing stirring for 5-10 min;
(6) regulating the rotation speed to 700-900 rpm/min, sequentially adding the surfactant, the substrate wetting agent and the anti-flash rust agent into a coating tank, and uniformly stirring for 5-10 min;
(7) premixing a thickening agent and a cosolvent, and then slowly adding the mixture into a coating tank under stirring, wherein the stirring speed is 1000-1200 rpm/min, and the stirring time is 5-10 min;
(8) filtering, removing filter residues, and finishing the preparation of the aqueous single-component conductive flame-retardant coating.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893489A (en) * | 2015-06-12 | 2015-09-09 | 漳州鑫展旺化工有限公司 | One-component salt fog resistant water paint and preparation method thereof |
| CN107141971A (en) * | 2015-12-03 | 2017-09-08 | 吴小再 | A kind of antistatic anti-corrosive antirusting paint, preparation method and applications |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893489A (en) * | 2015-06-12 | 2015-09-09 | 漳州鑫展旺化工有限公司 | One-component salt fog resistant water paint and preparation method thereof |
| CN107141971A (en) * | 2015-12-03 | 2017-09-08 | 吴小再 | A kind of antistatic anti-corrosive antirusting paint, preparation method and applications |
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Application publication date: 20200320 |