KR20130007856A - Electrically conductive paint and electrically conductive ground building method - Google Patents

Abstract

PURPOSE: A conductive paint having desired resistance value by including conductive carbon or nanotubes and a formation method of the electric conduction bottom surface using the same are provided to block explosion of gunpowder. CONSTITUTION: A conductive paint comprises paint and carbon nanotubes. A formation method of the electric conduction bottom surface using conductive paint comprises the following steps: drying a primer coating layer(20) after coating floor(10) with primer; applying conductive paint(30) on the primer; making mortar by mixing silica with conductive paint at the weight ratio of 14-16:1; curing the mortar(40) after installing filling mortar on the coated conductive paint; and curing after coating the cured mortar with the conductive paint.

Description

ELECTRICAL CONDUCTIVE PAINT AND ELECTRICALLY CONDUCTIVE GROUND BUILDING METHOD}

The present invention relates to a conductive paint and a method for forming a conductive bottom using the same, and more particularly, to a conductive paint by adding carbon nanotubes or conductive carbon to the paint, and to the mortar and the conductive paint mixed with the conductive paint. The present invention relates to a conductive paint that can block the explosion of explosives by forming an electrically conductive floor having an appropriate interfacial resistance value by exploding the explosive charges due to static electricity to the floor, and a method of forming the conductive floor using the same.

Conventionally, in order to make conductive paint, conductive paint was made by adding metal powder such as silver or copper to general paint.

Such conductive paints have been used mainly for mobile phones or monitors that require electromagnetic wave blocking.

However, the above-described conventional technique of making conductive paint for shielding electromagnetic waves by adding metal powder does not require stable interphase resistance because it only needs to block electromagnetic waves. Explosion of the gunpowder and ammunition could not be prevented, and there was a problem such as not being able to manufacture a conductive paint or a conductive floor having a stable inter-pole resistance value in accordance with the regulations.

In order to solve the problems of the prior art as described above,

Carbon nanotubes are used for the conductive paint and the conductive bottom according to the present invention.

It is preferable that the conductive paint and the conductive bottom have a gap resistance of 25 to 250 k ?.

The conductive paint includes 1,000 parts by weight of paint; It is preferable to include 4.0 to 6.0 parts by weight of carbon nanotubes.

The conductive paint preferably further contains 100 to 300 parts by weight of any one or two or more of iron oxide, fat sugar, cobalt oxide, nickel oxide, magnesium oxide, and zinc oxide. Iron oxide, fat sugar, cobalt oxide, nickel oxide, magnesium oxide, and zinc oxide are for coloring the paint, and may be replaced with other ones as necessary.

The paint is preferably any one or two or more of epoxy, melamine resin, PET, PP paint. Paint can be used in a variety of properties, and may be used by mixing two or more kinds of paint as needed.

Another conductive paint according to the present invention includes 1,000 parts by weight of paint, and 20 to 25 parts by weight of conductive carbon.

The conductive paint and the conductive bottom according to the present invention use a conductive carbon.

It is preferable that the conductive paint and the conductive bottom have a gap resistance of 25 to 250 k ?.

The conductive paint is 1,000 parts by weight of paint; It is preferable to include 20 to 25 parts by weight of the conductive carbon.

The paint is preferably any one or two or more of epoxy, melamine resin, PET, PP paint.

Conductive floor forming method using a conductive paint, primer coating step of drying after applying the primer to the bottom to form a conductive floor; A first conductive paint applying step of applying a conductive paint on the primer; A mortar curing step of mixing the silica sand and the conductive paint in a weight ratio of 14 to 16: 1 to make mortar, and curing the mortar after pouring the mortar on the conductive paint that has undergone the first conductive paint coating step; And a second conductive paint coating step of curing the conductive paint on the mortar after the curing step.

The second conductive paint applying step is preferably performed 3 to 4 times.

The conductive floor forming method using the conductive paint, the fixing nail installation step of installing a fixing nail on the floor to form a conductive floor; A wire installation step of installing a wire on the fixing nail; It is preferable to have a conductive paint coating step of applying a conductive paint to the bottom to form a conductive bottom.

It is preferable to have a rubber pad installation step of installing a cushioning rubber pad on the edge of the conductive bottom before the conductive paint coating step.

The conductive paint and the conductive floor are preferably used for the purpose of preventing explosions due to static electricity in military gunpowder and ammunition warehouses.

As described above, according to the present invention, a conductive paint having a desired resistance value can be produced by mixing nanotubes or conductive carbon with paint.

In addition, by forming the conductive bottom using the conductive paint, there is an effect of forming a conductive bottom having a resistance value of 25kΩ to 250kΩ (regulated by the Ministry of National Defense) required at the bottom of the gun powder.

The conductive paint and the conductive floor can block the explosion of the gunpowder by the static electricity in the gunpowder by grounding the static electricity generated in the human body.

1 is a cross-sectional view of the conductive floor in one embodiment according to the present invention.
Figure 2 is an illustration of a conductive floor in another embodiment according to the present invention.
3 is a cross-sectional view of FIG.

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

The present invention will be described in detail through the following examples. However, these examples are for illustrative purposes only and the present invention is not limited thereto.

Example 1 Conductive Paint

Epoxy paint 1kg and carbon nanotubes (5 ~ 30nm thick, 1 ~ 100㎛ long, multi-walled carbon nanotubes (MWCNT) with 88 ~ 98wt% carbon) 4.0g, 5.5 g and 6.0 g were mixed to form a conductive paint.

In order to measure the interpole resistance of the conductive paint made as described above, a primer is applied to the concrete floor (floor resistance value ∞kΩ), a first conductive paint is applied after 1 day, and a second conductive paint is applied after 1 day. After 1 day, the third conductive paint was applied.

The primer and the first to third conductive paints were applied at about 0.5 to 0.7 mm (average 0.6 mm) at a time, and the overall thickness was measured to be 2-3 mm.

Where the primer and the 1st to 3rd conductive paint were constructed, the resistance between the poles and the resistance between the poles and the ground were measured by the following [Measuring Method].

[How to measure]

The conductive paint or the conductive bottom may be measured by measuring the resistance between the poles and the resistance between the pole and the ground.

1. Preparation: A tool for measuring the resistance between the poles or the resistance between the poles and the ground, includes a megohm tester, an included rod (5 pounds in weight, 5 in ² on the bottom), and connecting wire.

2. To measure the resistance between the poles, place two rods (5 pounds in weight and 5 in ² on the bottom) on each side of a square of 1 yard (91.44 cm in length), between the rod and the rod. Measure the resistance by connecting a megohm tester to the wire. In this measurement, since the square consists of four sides, a total of four measurements are produced, and the average of the four measurements is taken as the resistance between poles. However, no more than 1 MΩ or less than 1,000 Ω may be used for any of the four measurements.

3. To measure the resistance between the pole and the ground, place one rod (5 pounds in weight, 5 in ² on the bottom) at each vertex of a 1 yard square (91.44 cm in length). Measure the resistance by connecting the cables to the megohm testers. This measurement gives a total of 4 measurements, and the average of the 4 measurements is the resistance between pole and ground. However, no more than 1 MΩ or less than 1,000 Ω may be used for any of the four measurements.

Example 2 Conductive Paint

100 g of iron oxide (Fe ₂ O ₃ produced by Eugene Co., Ltd.) and product names 707 and 909 were mixed at 5: 5 in each of [Example 1], 200 g and 300 g were mixed to make the paint purple.

Example 3 Conductive Paint

In each of [Example 1], 100 g, 200 g, and 300 g of branch sugar (manufactured by DuPont Chemical Co., Ltd. TiO ₂ ) were respectively mixed to make the color of the paint gray.

Example 4 Conductive Paint

1kg of epoxy paint and conductive carbon (Ketjen Black EC-600 JD, Ash content 0.1wt% or less Apparent Bulk Density 100 ~ 140g / L) 20g, 22.5g, 25g were mixed to make a conductive paint. Paint mixed with conductive carbon showed black color.

[Analysis Result 1] Challenge Paint

The results of measuring the resistance between the poles and the resistance between the pole and the ground of the conductive paints of [Example 1] to [Example 4] are as follows.

As can be seen from the above table, all of the conductive paints prepared in Examples 1 to 4 satisfy the resistance values of 25 kΩ to 250 kΩ of interpolar resistance, which is prescribed by the Ministry of National Defense.

In Example 1, when the carbon nanotubes were injected with less than 4.0 g or more than 6.0 g, the inter-pole resistance value was outside the inter-pole resistance value of 25 kΩ to 250 kΩ as defined by the Ministry of National Defense.

In Example 2 or Example 3, when the iron oxide or the sugar content is less than 100g or more than 300g, the interpolar resistance value is outside the interpolar resistance value of 25kΩ ~ 250kΩ prescribed by the Ministry of National Defense.

In Example 4, when the conductive carbon is less than 20g or more than 25g, the interpole resistance value is out of the interpole resistance value of 25kΩ ~ 250kΩ defined by the Ministry of National Defense.

Example 5 Conductive Floor

[Example 2] 1kg of epoxy paint and carbon nanotubes (thickness 5 ~ 30nm, length 1 ~ 100㎛, multi-walled carbon nanotubes with 88 ~ 98wt% carbon component (Multi-Walled Carbon Nanotube, MWCNT )) Mixed with 5.5 g and 200 g of iron oxide (ferric oxide (Fe ₂ O ₃ ), product name 707 and 909 (produced by Eugene Co., Ltd.) at 5: 5) Using the conductive paint made, a conductive bottom was made as shown in FIG.

0.5 kg of primer, 5.5 kg of conductive paint, and 15 kg of silica sand (No. 5) were prepared to make 1 m of concrete floor into a conductive floor.

The primer used a synthetic resin penetrating adhesive as a kind of adhesive to closely adhere the conductive paint on the concrete floor.

The primer was applied to the concrete floor 10 with a roller once to produce a primer layer 20.

After 1 day, the conductive paint was applied to the primer layer 20 with a roller once to produce a first conductive paint layer 30.

After 1 day, the mortar layer 40 was cured for 2 days by applying a mortar mixed with silica sand and a conductive paint in a weight ratio of 14: 1 on the first conductive paint layer 30 with a trowel and curing for 2 days. Generated.

The conductive paint was applied to the mortar layer 40 with a roller once to produce a second conductive paint layer 50.

The secondary conductive paint layer was generated a plurality of times (50, 60, 70, etc.) on the upper part of the mortar layer 40, and the bottom resistance value of each of the secondary conductive paint layers was generated every two to five layers. Measured. After coating the second conductive paint layer (50, 60, 70) it is left to cure for about one day.

The primer layer 20, the primary conductive paint layer 30, the secondary conductive paint layers 50, 60, and 70 were cured for 1 day, and the mortar layer 40 was cured for 2 days. It is applicable to spring and autumn, and it is possible to cure in a shorter time in summer, and to cure in winter.

Example 6 Conductive Floor

In Example 5, mortar was the same as in [Example 5], except that the silica sand and the conductive paint were set at a ratio of 15: 1.

Example 7 Conductive Floor

In [Example 5], mortar was the same as in [Example 5], except that the silica sand and the conductive paint were in a ratio of 16: 1.

Example 8 Conductive Bottom

In [Example 5], mortar was the same as in [Example 5], except that the silica sand and the conductive paint were in a ratio of 13: 1.

Example 9 Conductive bottom

In Example 5, mortar was the same as in Example 5 except that the silica sand and the conductive paint were in a ratio of 17: 1.

Example 10 Conductive bottom

Example 5 was the same as Example 5 except that the thickness of the mortar layer 40 was 5 mm.

Example 11 Conductive Floor

In Example 5, it was the same as that of Example 5 except having made the thickness of the mortar layer 40 into 7.5 mm.

Example 12 Conductive Bottom

In Example 5, the thickness was the same as in Example 5 except that the thickness of the mortar layer 40 was 12.5 mm.

Example 13 Conductive Bottom

In Example 5, it was the same as that of Example 5 except having made the thickness of the mortar layer 40 into 15 mm.

[Analysis Result 2] Challenge Floor

The result of measuring the bottom resistance of the conductive floor produced by Example 5-Example 13 is as follows.

The ground resistance value of the concrete floor before making the conductive floor was ∞kΩ, and according to [Analysis Result 2], the resultant mortar was formed using the conductive paint prepared according to the present invention. In the case where the second conductive paint layer formed on the layer 40 is 3 to 4 layers, a conductive floor having a floor resistance value in compliance with the ROK Department of Defense regulation was generated.

Example 14 Conductive Floor

Using the conductive paints of [Example 1] to [Example 4], a conductive bottom was made as shown in FIG.

The conductive floor according to Figure 2, the fixed nail (80, 4 to 8 concrete nails in 1㎡) to the concrete floor 10 to form a conductive floor to drive a certain depth, and installed in the fixed nail 80 (82, diameter 3.2mm) is installed. Wire 82 is installed in the form of a mesh, it is fixed to the fixing nail 80 or bound by a separate binding line.

At the edge of the concrete floor 10, a rubber pad (84, thickness 5mm) for cushioning is installed around.

After the above installation, the conductive paint of [Example 1] to [Example 4] was applied four times (20, 30, 50, 60) to form a conductive bottom.

In FIG. 2, only some of the conductive paints 20, 30, 50, and 60 are displayed in order to indicate the state of the fixing nail 80 and the wires 82, but when the construction is completed, the conductive paints 20, 30, 50, and 60 are shown. Covers the entire floor, the fixing nail 80 or the wire 82 is not exposed over the conductive paint (60).

2 is shown in cross section as shown in FIG.

Referring to FIG. 3, it is clearly shown that the fixing nail 80 or the wire 82 is not exposed above the conductive paint 60, and the cushioning rubber pad 84 serves as a buffer between the wall 100 and the conductive floor. It can be seen that.

10. Bottom 20. Primer layer
30. Primary Conductive Paint Layer 40. Maltar Layer
50. Secondary conductive paint layer (1) 60. Secondary conductive paint layer (2)
70. Secondary conductive paint layer (3) 80. Fixing nail
82. Wire 84. Shock-absorbing rubber pad
100. Wall

Claims (18)

Conductive paint and conductive bottom using carbon nanotubes.
The method of claim 1,
A conductive paint and a conductive bottom having an interpolar resistance of 25 to 250 kΩ.
The method of claim 1,
Challenge paint,
1,000 parts by weight of paint;
A conductive paint comprising 4.0 to 6.0 parts by weight of carbon nanotubes.
The method of claim 1,
A conductive paint further comprising 100 to 300 parts by weight of any one or two or more of iron oxide, saccharide, cobalt oxide, nickel oxide, magnesium oxide, zinc oxide.
The method of claim 1,
The paint is conductive paint, characterized in that any one or more of epoxy, melamine resin, PET, PP paint.
In the conductive floor forming method using the conductive paint according to claim 1,
A primer applying step of applying a primer to the bottom to form a conductive bottom and then drying the primer;
A first conductive paint applying step of applying a conductive paint on the primer;
A mortar curing step of mixing the silica sand and the conductive paint in a weight ratio of 14 to 16: 1 to make mortar, and curing the mortar after pouring the mortar on the conductive paint that has undergone the first conductive paint coating step;
And a second conductive paint coating step of curing the conductive paint on the mortar having undergone the curing step, and curing the conductive paint.
The method according to claim 6,
The second conductive paint coating step is a conductive floor forming method using a conductive paint, characterized in that performed three to four times.
In the conductive bottom forming method using the conductive paint according to claim 1,
Fixing nail installation step of installing a fixing nail on the floor to form a conductive floor;
Wire installation step of installing a wire to the fixing nail;
A conductive paint forming method using a conductive paint having a; conductive paint coating step of applying a conductive paint on the floor to the conductive floor.
9. The method of claim 8,
Before the conductive paint application step,
A conductive floor forming method using a conductive paint having a; rubber pad installation step of installing a cushioning rubber pad on the edge of the conductive bottom.
Conductive paint and conductive floor using conductive carbon.
The method of claim 10,
A conductive paint and a conductive bottom having an interpolar resistance of 25 to 250 kΩ.
The method of claim 10, wherein the conductive paint,
1,000 parts by weight of paint;
Conductive paint comprising 20 to 25 parts by weight of conductive carbon.
The method of claim 10,
The paint is conductive paint, characterized in that any one or more of epoxy, melamine resin, PET, PP paint.
In the conductive bottom forming method using a conductive paint according to claim 10,
A primer applying step of applying a primer to the bottom to form a conductive bottom and then drying the primer;
A first conductive paint applying step of applying a conductive paint on the primer;
A mortar curing step of mixing the silica sand and the conductive paint in a weight ratio of 14 to 16: 1 to make mortar, and curing the mortar after pouring the mortar on the conductive paint that has undergone the first conductive paint coating step;
And a second conductive paint coating step of curing the conductive paint on the mortar having undergone the curing step, and curing the conductive paint.
The method of claim 10,
The second conductive paint coating step is a conductive floor forming method using a conductive paint, characterized in that performed three to four times.
In the conductive bottom forming method using a conductive paint according to claim 10,
Fixing nail installation step of installing a fixing nail on the floor to form a conductive floor;
Wire installation step of installing a wire to the fixing nail;
A conductive floor forming method using a conductive paint having a; conductive paint coating step of applying a conductive paint on the floor to the conductive floor.
17. The method of claim 16,
Before the conductive paint application step,
A conductive floor forming method using a conductive paint having a; rubber pad installation step of installing a cushioning rubber pad on the edge of the conductive bottom.
The method according to any one of claims 1 to 17,
Conductive paint and conductive flooring used to prevent explosions by static electricity in military gunpowder and ammunition warehouses.

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