阅读说明：本技术 氟碳纳米钛导静电涂料 (Fluorocarbon nano titanium static conductive coating ) 是由 苏守柱 于 2020-04-21 设计创作，主要内容包括：本发明公开了氟碳纳米钛导静电涂料,涉及涂料技术领域；为了解决涂料导电性能差问题；氟碳纳米钛导静电涂料包括以下各重量组分组成：分散剂为0.1％-0.65％、纳米钛粉0.2％-25％、氟碳树脂35％-50％,氟碳纳米钛导静电涂料的制备方法包括取按组成成分的重量百分比计为丁醋39.3％,分散剂为0.4％。本发明有耐腐蚀性强等优点,可以广泛应用于高温耐腐蚀场所,保护设备设施,这种纳米级钛粉具有特殊活性功能,键合力极强,通过树脂极性及纳米钛粉的协同作用,达到漆膜导电效果,将添加剂融于氟碳树脂中,可以使氟碳树脂的电阻下降,增加导电性能,涂料将在雾化点被充电,这种静电充电可使涂料颗粒更高效。(The invention discloses a fluorocarbon nano titanium static conductive coating, and relates to the technical field of coatings; in order to solve the problem of poor conductivity of the coating; the fluorocarbon nano titanium static conductive coating comprises the following components in parts by weight: 0.1 to 0.65 percent of dispersant, 0.2 to 25 percent of nano titanium powder and 35 to 50 percent of fluorocarbon resin, and the preparation method of the fluorocarbon nano titanium static conductive coating comprises the following steps of taking the butyl acetate 39.3 percent and the dispersant 0.4 percent according to the weight percentage of the components. The nano-titanium powder has a special active function and extremely strong bonding force, achieves the conductive effect of a paint film through the synergistic effect of the resin polarity and the nano-titanium powder, can lower the resistance of the fluorocarbon resin and increase the conductive performance by melting the additive in the fluorocarbon resin, and can charge the paint at an atomization point, so that the electrostatic charging can enable the paint particles to be more efficient.)

1. The fluorocarbon nano titanium static conductive coating is characterized by comprising the following components in parts by weight: 0.1-0.65% of dispersing agent, 2-5% of nano titanium powder, 35-50% of fluorocarbon resin, 0.1-0.6% of defoaming agent, 18-20% of mica-point powder, 2-5% of mica powder, 2% of anti-settling barium sulfate and aromatic hydrocarbon solvent, wherein the total amount of the dispersing agent is 100%.

2. The fluorocarbon nano titanium electrostatic conductive coating of claim 1, wherein the dispersant is an organic dispersant.

3. The fluorocarbon nano titanium electrostatic conductive coating of claim 1, wherein the aromatic hydrocarbon solvent is sewage butyl acetate or xylene.

4. The preparation method of the fluorocarbon nano titanium static conductive coating is characterized by comprising the following steps:

s1: taking 39.3 percent of sewage butyl vinegar, 0.4 percent of dispersant, 3 percent of nano titanium powder, 35 percent of fluorocarbon resin, 0.3 percent of defoamer, 18 percent of mica-point powder, 2 percent of mica powder and 2 percent of anti-settling barium sulfate according to the weight percentage of the components, sequentially adding the components into a grinding kettle, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in S1 into a high-speed stirrer provided with a constant-pressure dropping funnel, a reflux condensing device and a thermometer, and performing pre-dispersion, wherein the stirring speed is controlled at 1000r/min, the temperature is kept at 80 ℃, and the stirring time is 15 min;

s3: and (3) finally dispersing the pre-dispersion product obtained in the step (S2) by adopting a Germany Zetamini sand mill, keeping the rotating speed of the sand mill at 1000r/min, and grinding for 20min to finally obtain the fluorocarbon nano titanium static conductive coating particles.

5. The method for preparing fluorocarbon nano titanium electrostatic conductive coating according to claim 4, wherein the method for preparing fluorocarbon resin in S1 comprises the following steps:

s11: preparing 18% of di-butanone, 15% of diethylene glycol butyl ether, 2% of methyl isobutyl ketone, 4% of butyl acetate and 61% of methyl cyclohexane main solution to obtain an additive;

s12: treating a workpiece or a base material by a conventional fluorocarbon spraying pretreatment process: sequentially removing oil and dirt, washing with water, washing with alkali, washing with water, washing with acid, washing with water, chromizing, washing with water and washing with pure water;

s13: adding the additive in S11 into fluorocarbon resin, controlling the adding amount until the viscosity is dropped in a measuring cup of ZARNNO0.2 for 18 seconds, spraying to form three coatings, wherein the thickness of the primer is 10 mu m, the thickness of the finish paint is 20 mu m, and the thickness of the finishing paint is 10 mu m.

6. The method for preparing fluorocarbon nano titanium electrostatic conductive coating according to claim 5, wherein the di-butanone in S11 increases the temperature and decreases the solubility, and when the paint is used in the temperature below 20 ℃, the paint viscosity is dissolved, and the volatilization rate is increased.

7. The method for preparing fluorocarbon nano titanium electrostatic conductive coating according to claim 5, wherein diethylene glycol butyl ether in S11 has higher boiling point and lower volatilization speed, and can inhibit the volatilization speed frequency of paint when used in temperature above 20 ℃.

8. The method for preparing fluorocarbon nano titanium electrostatic conductive coating according to claim 5, wherein methyl isobutyl ketone in S11 mainly reduces paint resistance, has large conductive effect, enhances atomization effect, increases adsorption capacity and improves painting rate.

9. The method for preparing fluorocarbon nano titanium electrostatic conductive coating according to claim 5, wherein the butyl acetate in S11 is used for adjusting the leveling of paint, so that pits, pinholes, sand holes and the like on the surface of the sprayed workpiece are smooth and flat.

Technical Field

The invention relates to the technical field of coatings, in particular to a fluorocarbon nano titanium static conductive coating.

Background

The fluorocarbon coating is a coating which takes fluororesin as a main film forming substance, the fluororesin coating has large electronegativity and strong carbon-fluorine bond energy due to introduced fluorine elements, has particularly superior acid and alkali resistance, ultraviolet radiation resistance, weathering resistance, water resistance and antistatic property, titanium white powder is regarded as a white pigment with the best performance in the world at present and is widely applied to the industries of coating, plastics, paper making, printing ink, chemical fiber, rubber, cosmetics and the like, nano titanium dioxide is a transparent substance with ultraviolet shielding function and color effect generation, and once the nano titanium dioxide is produced, the nano titanium dioxide can be widely applied to various aspects of sun protection, plastic film products, wood protection, transparent durable finish paint, fine ceramics and the like due to the uniform high transparency and ultraviolet shielding function, the particle size of the nano titanium dioxide is only one tenth of the particle size of common titanium dioxide, when the paint is used together with other pigments, an 'effect pigment' and a magic color paint can be manufactured, the fullness and the color aesthetic feeling of the color of the metal finish paint can be increased, if the paint is used for coating artworks such as automobiles, motorcycles, mobile phones, electric appliances and the like, the paint has strong attraction to consumer groups seeking unique individuality, for conventional electrostatic spraying, a sprayed part is generally a conductor and is communicated with the ground to generate negative charges, when the paint is sprayed, the paint liquid is electrified by increasing external voltage to generate positive charges, and under the action of an electric field, more than 90 percent of the paint liquid with the positive charges is adsorbed on the sprayed part, so that the paint has the advantages of high utilization rate of the paint liquid, small environmental pollution, good coating quality, high coating efficiency and the like.

Through search, the Chinese patent with the application number of CN201410662565.6 discloses a preparation method of a heavy-duty anticorrosive coating containing nano-titanium, which comprises the steps of synthesizing oligomeric organic silicon by phenyl triethoxysilane and dimethyl diethoxysilane, modifying by epoxy resin E-20, preferably adding nano-titanium powder, and uniformly stirring to prepare the heavy-duty anticorrosive coating containing nano-titanium. The preparation method of the heavy anti-corrosion coating containing the nano titanium in the patent has the following defects: in the spraying process, the electrostatic effect is weak, and the conductive performance of the coating is poor.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a fluorocarbon nano titanium static conductive coating.

In order to achieve the purpose, the invention adopts the following technical scheme:

the fluorocarbon nano titanium static conductive coating comprises the following components in parts by weight: 0.1-0.65% of dispersing agent, 2-5% of nano titanium powder, 35-50% of fluorocarbon resin, 0.1-0.6% of metal in mass percent of volatile components of the fluorocarbon resin, 18-20% of mica-point powder, 2-5% of mica powder, 2% of anti-settling barium sulfate and aromatic hydrocarbon solvent, wherein the total amount of the dispersing agent is 100%.

Preferably: the dispersant is an organic dispersant.

Preferably: the aromatic hydrocarbon solvent is acetic acid butyl acetate or xylene.

The preparation method of the fluorocarbon nano titanium static conductive coating comprises the following steps:

s1: taking 39.3 percent of sewage butyl vinegar, 0.4 percent of dispersant, 3 percent of nano titanium powder, 35 percent of fluorocarbon resin, 0.3 percent of defoamer, 18 percent of mica conductive powder, 2 percent of mica powder and 2 percent of anti-settling barium sulfate according to the weight percentage of the components, sequentially adding the components into a grinding kettle, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in S1 into a high-speed stirrer provided with a constant-pressure dropping funnel, a reflux condensing device and a thermometer, and performing pre-dispersion, wherein the stirring speed is controlled at 1000r/min, the temperature is kept at 80 ℃, and the stirring time is 15 min;

s3: and (4) finally dispersing the pre-dispersion product obtained in the step (S2) by adopting a Germany ZetaMini sand mill, keeping the rotating speed of the sand mill at 1000r/min, and grinding for 20min to finally obtain the fluorocarbon nano titanium static conductive coating particles.

Preferably: the preparation method of the fluorocarbon resin in the S1 comprises the following steps:

s11: preparing 18% of di-butanone, 15% of diethylene glycol butyl ether, 2% of methyl isobutyl ketone, 4% of butyl acetate and 61% of methyl cyclohexane main solution to obtain an additive;

s12: treating a workpiece or a base material by a conventional fluorocarbon spraying pretreatment process: sequentially removing oil and dirt, washing with water, washing with alkali, washing with water, washing with acid, washing with water, chromizing, washing with water and washing with pure water;

s13: adding the additive in S11 into fluorocarbon resin, controlling the adding amount until the viscosity is dropped in a measuring cup of ZARNNO0.2 for 18 seconds, spraying to form three coatings, wherein the thickness of the primer is 10 mu m, the thickness of the finish paint is 20 mu m, and the thickness of the finishing paint is 10 mu m.

Preferably: the di-butanone in the S11 increases the temperature and reduces the solubility, and when the di-butanone is used at the temperature below 20 ℃, the di-butanone dissolves the viscosity of the paint and accelerates the volatilization rate.

Preferably: the diethylene glycol monobutyl ether in the S11 has a higher boiling point and a lower volatilization speed, and can inhibit the volatilization speed frequency of the paint when being used at the temperature of over 20 ℃.

Preferably: the methyl isobutyl ketone in the S11 mainly reduces the resistance of the paint, has large conductive effect, enhances the atomization effect, increases the adsorption capacity and improves the painting rate.

Preferably: and the butyl acetate in the S11 is used for adjusting the leveling of the paint, so that pits, pinholes, sand holes and the like on the surface of the sprayed workpiece are smooth and flat.

The invention has the beneficial effects that: the nano-titanium powder is black powder, is a nontoxic, tasteless and pollution-free metal material, has the advantages of strong corrosion resistance and the like through transmission electron microscope test and analysis, can be widely applied to high-temperature corrosion-resistant places and protects equipment facilities, has a special active function and extremely strong bonding force, achieves the conductive effect of a paint film through the synergistic action of resin polarity and the nano-titanium powder, greatly reduces the material and manufacturing cost, creates conditions for popularization of electrostatic spraying on spraying of non-conductive materials such as plastics and the like and reduction of environmental pollution during coating of the non-conductive materials, melts an additive into fluorocarbon resin, can reduce the resistance of the fluorocarbon resin and increase the conductive performance, and charges paint at an atomization point, so that paint particles can be more efficiently and more uniformly adsorbed to the front, the back, the side and the edge of a product through electrostatic charging, electrostatic force can also make charged coating particles deposit on a workpiece in a high proportion, the atomization rate is high, and the adsorption rate and the painting rate are increased.

Detailed Description

The technical solution of the present patent will be further explained in detail with reference to the specific embodiments.

The following detailed description of embodiments of the patent is intended to be illustrative, and is not intended to be limiting.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the indicated orientations and positional relationships based on the indicated orientations and positional relationships for ease of description and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of this patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.