KR101155593B1 - Elastic sensor cables - Google Patents

Abstract

The present invention relates to an elastic sensor cable, and more particularly comprises a coating comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch and a conductive portion inserted into the coating described above.
The above-mentioned elastic sensor cable is formed of the cross-linked ethylene methacrylic acid copolymer is excellent in elasticity, and even when applied to seawater shows an excellent effect that the surface crack does not occur.

Description

Elastic Sensor Cable {ELASTIC SENSOR CABLES}

The present invention relates to an elastic sensor cable, and more particularly comprises a coating comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch and a conductive portion inserted into the coating described above.

The present invention relates to an elastic sensor cable, and more particularly comprises a coating comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch and a conductive portion inserted into the coating described above.

The sensor cable is mainly used to transfer electrical signals generated from various sensor devices to a central medium or to transfer and exchange signals between the sensor devices.

However, the sensor cable used in the prior art was inconvenient when it is wound around the cylindrical tube because it has no elasticity, and the sensor cable is frequently entangled with each other even when using the wound and stored sensor cable.

In addition, when used in connection with a seabed exploration device applied to ships, etc., the surface crack of the coating material is easily generated by the sea water, there is a problem that the physical properties of the sensor cable is lowered due to rust generated in the conductor wrapped in the coating material.

An object of the present invention is to provide an elastic sensor cable excellent in elasticity and easy to store and use.

Another object of the present invention is to provide an elastic sensor cable in which surface cracks such as nudity and bubble generation do not occur in the coating layer even after long-term exposure to seawater.

An object of the present invention is achieved by providing an elastic sensor cable comprising a coating comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch and a conducting portion inserted into the coating.

According to a preferred feature of the present invention, the coating part comprises 95 to 99 parts by weight of crosslinked ethylene methacrylic acid copolymer and 1 to 5 parts by weight of the masterbatch.

According to a further preferred feature of the invention, the masterbatch is to comprise 80 to 85 parts by weight of crosslinked ethylene methacrylic acid copolymer, 10 to 20 parts by weight of filler, 1 to 5 parts by weight of pigment.

According to a further preferred feature of the invention, the filler is to comprise titanium dioxide.

According to a still further preferred feature of the invention, the pigment comprises carbon black, ultramarine blue and cadmium yellow.

According to a further preferred feature of the invention, the conductive portion is to comprise one selected from the group consisting of silver, copper and aluminum.

According to a further preferred feature of the invention, the coating portion is to be formed in the shape of a rectangular cross section.

Elastic sensor cable according to the present invention is excellent in elasticity, exhibits an excellent effect of easy storage or use.

In addition, even when exposed to seawater for a long time, it exhibits an excellent effect that no surface cracks such as nudity or bubble generation occur in the coating layer.

1 is a perspective cross-sectional view showing an elastic sensor cable according to the present invention.
Figure 2 is a perspective view showing a storage state of the elastic sensor cable according to the present invention.

Hereinafter, preferred embodiments of the present invention and physical properties of the respective components will be described in detail with reference to the accompanying drawings. However, the present invention is not limited thereto, And this does not mean that the technical idea and scope of the present invention are limited.

The elastic sensor cable 1 according to the present invention comprises a covering part 10 comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch and a conducting part 20 inserted into the covering part 10 described above.

The coating portion 10 described above comprises a crosslinked ethylene methacrylic acid copolymer and a masterbatch, more preferably comprising 95 to 99 parts by weight of the crosslinked ethylene methacrylic acid copolymer and 1 to 5 parts by weight of the masterbatch. The cross section is formed in a rectangular shape. When the cross section is formed in a rectangular shape, when the elastic sensor cable 1 is wound and stored in a cylindrical storage container, it can be wound tightly to improve space utilization and to be uniformly wound. Even if the sensor cable is wound up and used, the cable is not entangled, so it can be used quickly.

At this time, the above-described masterbatch comprises 80 to 85 parts by weight of crosslinked ethylenemethacrylic acid copolymer, 10 to 20 parts by weight of filler, and 1 to 5 parts by weight of pigment.

The filler described above comprises titanium dioxide, and the pigment mentioned above consists of carbon black, ultramarine blue and cadmium yellow.

The coated part 10 composed of the above-described components is used to exhibit high elasticity by using a crosslinked ethylene methacrylic acid copolymer which exhibits excellent elasticity, and does not generate nude or bubbles on the surface of the coated part 10 even when exposed to seawater for a long time. Do not.

In addition, titanium dioxide used as a filler among the components of the masterbatch serves to improve the mechanical strength of the coating portion 10 described above.

The conductive portion 20 described above is inserted into the coating portion 10 described above, and serves to transfer electricity. The conductive portion 20 includes one selected from the group consisting of silver, copper, and aluminum, and exhibits the highest efficiency for the cost. Preference is given to using copper.

At least one conductive portion 20 is formed in the above-described coating portion 10, and a plurality of conductive portions 20 may be formed.

The elastic sensor cable 1 composed of the above-mentioned components is manufactured by extruding the coating portion 10 described above on the surface of the conductive portion 20 described above. In more detail, the crosslinked ethylene methacrylic acid copolymer is hopper. While drying in a dryer, the above-described masterbatch is mixed, and after being fed into the extruder, the extruder is heated to a temperature of 180 to 200 ° C to extrude the above-described coating part 10 composition onto the surface of the conductive part 20 and cooled. Are manufactured.

At this time, the cooling process is made using a cooling water of about 5 ℃, the cooling water is preferably maintained in a closed state to maintain 5 ℃, by quenching the elastic sensor cable extruded through the extruder with 5 ℃ cooling water Is done.

Hereinafter, the physical properties of the elastic sensor cable according to the present invention will be described with reference to Examples.

≪ Example 1 >

97 parts by weight of the crosslinked ethylene methacrylic acid copolymer (Dupont, Surlyn 9650) and 3 parts by weight of the masterbatch were mixed, dried in a hopper dryer, and then dried using an extruder having a melting temperature of 190 ° C. The extrudate was coated on the copper wire and quenched with 5 ° C. cooling water to prepare an elastic sensor cable.

(However, the above master batch is 81 parts by weight of crosslinked ethylene methacrylic acid copolymer (Dupont, Surlyn 9650), 15 parts by weight of a filler consisting of titanium dioxide, 4 weight of pigments consisting of carbon black, ultramarine blue and cadmium yellow) Including wealth.)

≪ Comparative Example 1 &

After the low density polyethylene was dried in a hopper dryer, an extruder was coated on two copper wires having a purity of 99.9% using an extruder having a melting temperature of 120 ° C., and cooled to prepare a sensor cable.

The physical properties of the elastic sensor cable and the sensor cable manufactured by the above-described Example 1 and Comparative Example 1 were measured and shown in Table 1 below.

TABLE 1

As shown in Table 1 above, the elastic sensor cable manufactured according to the present invention has excellent elasticity by forming a coating layer of crosslinked ethylene methacrylic acid copolymer, and causes surface cracks such as nudity or bubble generation even when exposed to seawater for a long time. Not only that, but it can be seen that the insulation resistance and tensile strength are significantly improved compared to the sensor cable used in the prior art.

One ; Elastic sensor cable
10; Sheath
20; Conduction

Claims (7)

A coating comprising a crosslinked ethylene methacrylic acid copolymer and a masterbatch; And
Conductive portion is inserted into the coating portion;
The coating part consists of 95 to 99 parts by weight of crosslinked ethylene methacrylic acid copolymer and 1 to 5 parts by weight of the masterbatch,
The masterbatch is an elastic sensor cable comprising 80 to 85 parts by weight of crosslinked ethylene methacrylic acid copolymer, 10 to 20 parts by weight of filler, and 1 to 5 parts by weight of pigment.
delete delete The method according to claim 1,
Elastic filler cable, characterized in that the filler comprises titanium dioxide.
The method according to claim 1,
The pigment is elastic sensor cable, characterized in that made of carbon black, ultramarine blue and cadmium yellow.
The method according to claim 1,
And the conductive part comprises one selected from the group consisting of silver, copper and aluminum.
The method according to claim 1,
The covering part is elastic sensor cable, characterized in that the cross section is formed in the shape of a rectangle.

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