KR102010497B1 - Chemical reaction leak sensor sensing leak material by chemical reaction - Google Patents

Abstract

The present invention is formed on a base film layer having a conductive wire spaced apart from each other at a predetermined interval on the upper surface, and formed on the base film layer, and reacts with the polymer resin and the leaking material to decompose or dissolve by reacting with the leaking material to be detected It includes a reaction layer containing a pH-dye changing color, the leaking material reacts with the polymer resin to decompose or dissolve the polymer resin and provides a chemical reaction leak sensor that generates an alarm upon contact with the wire.

Description

Chemical reaction leak detection sensor that detects leaked substances by chemical reaction {CHEMICAL REACTION LEAK SENSOR

The present invention relates to a leak detection sensor, and more particularly, to a chemical reaction leak detection sensor capable of accurately detecting a leaked material within a short time by generating a signal such as color change or alarm by chemical reaction with the leaked material. .

Companies producing and handling chemicals continue to experience large and small casualties, economic losses and environmental damage. In response to these accidents, the Chemicals Control Act was implemented in January 2015. However, despite the implementation of the Chemicals Control Act, accidents are still occurring due to leakage of hazardous substances.

Recently, the Ministry of Environment and chemical handling companies are looking for measures and measures to reduce such accidents. As an alternative, a method of identifying harmful chemicals leaking in advance has been proposed. Under these circumstances, various leak sensors such as cable type leak sensors, band film type leak sensors, and modular leak sensors have been proposed or released.

Utility Model Registration No. 20-0471278 (August 11, 2014) relates to a leak detection sensor and a leak detection device including the same, and it is possible to detect not only an acid solution but also an electrolyte solution including an alkaline solution. The present invention relates to a leak detection sensor in which a conductive wire made of carbon material is additionally printed on a conductive material.

In addition, Korean Laid-Open Publication No. 10-2014-0099643 (published Aug. 13, 2014) relates to an 'acid solution leakage detecting device', and includes a base film layer made of a film material and a length direction on an upper surface of the base film layer. Disclosed is an acid solution leakage sensing device including a pair of conductive lines formed side by side and a coating layer applied to an upper surface of a base film layer so that the conductive lines are not exposed to the outside by a material dissolved by an acid solution. When dissolved by the acidic solution and the conductive lines are energized with each other, the remote controller can check the state of the energized state to check the leakage state of the acidic solution.

However, according to these prior documents, it is difficult to detect the leak within a short time due to the nature of the composition of the coating layer when leaking harmful substances, such as problems of life, industrial damage and environmental damage, especially if the alarm malfunctions to check this There is a difficult problem.

1.Registration Utility Model No. 20-0471278 (August 11, 2014) 2. Korean Publication No. 10-2014-0099643 (released August 13, 2014)

Accordingly, the present invention to solve the above problems, to provide a chemical reaction leak detection sensor that can detect the leaking material in a short time with a color change in a fast chemical reaction with the leaking material.

In addition, an object of the present invention is to provide a chemical reaction leak detection sensor that can accurately determine whether the alarm generation or malfunction by the detection of harmful substances even when the alarm occurs by introducing a pH dye in the reaction layer.

In order to achieve the above object, an embodiment of the present invention is formed on the base film layer having a conductive wire spaced apart from each other at a predetermined interval on the upper surface, and formed on the base film layer, and reacts with the leaking material to be detected or decomposed or A reaction layer comprising a dissolving polymer resin and a pH dye which changes color in response to the leaking substance, wherein the leaking substance reacts with the polymer resin to decompose or dissolve the polymer resin and then contact the wire It provides a chemical reaction leak detection sensor characterized in that this occurs.

Preferably, it is formed on the reaction layer to function to protect from an external stimulus, and may further include a protective layer formed with a sensing hole in which the leaking material is introduced.

In addition, preferably, it may further include an absorbing layer formed between the reaction layer and the protective layer, absorbing the leaking material introduced through the sensing hole to improve the contact force between the leaking material and the wire.

According to the present invention, it is possible to provide a leak detection sensor that can detect the leak in a short time by introducing a polymer resin capable of rapid chemical reaction with the leaking material in the reaction layer.

In addition, according to the present invention, by introducing a pH dye that causes a color change when reacting with an acid or a base in the reaction layer, it can be confirmed that the leakage of hazardous substances must accompany the color change when an alarm occurs, so that it can be accurately determined whether or not the leak. Leak detection sensor can be provided.

1 is an exploded perspective view of components of a leak detection sensor according to an exemplary embodiment of the present invention.
2 illustrates various patterns of conductive wires according to an exemplary embodiment of the present invention.
Figure 3 shows a leak detection sensor according to an embodiment of the present invention marked with an identification mark.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in order to practice the invention. However, this is not intended to limit the present invention to specific embodiments, it should be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to that other component, but there may be another configuration between each component. It is to be understood that the elements may be "connected", "coupled" or "connected".

In addition, if a component such as a layer, film, region, plate, etc. is said to be "on" or "on" another component, it is not only when the other component is "on top of" but also another component in between. It is to be understood that this may also include cases. On the contrary, when a component is said to be "directly above" another part, it should be understood to mean that there is no other part in the middle.

Hereinafter, with reference to the accompanying drawings, a leak detection sensor according to an embodiment of the present invention will be described in detail.

1 is an exploded perspective view of a leak detection sensor according to an exemplary embodiment of the present invention, FIG. 2 is a diagram illustrating a pattern of a conductive line according to an exemplary embodiment of the present invention, and FIG. 3 is an illustration of the present invention in which an identification mark is displayed. It shows a leak detection sensor according to the embodiment.

1 and 2, the leak detection sensor 100 according to an embodiment of the present invention is the base film layer 110, the reaction layer 130 formed on the base film layer 110, the reaction And an absorption layer 140 formed on the layer 130 and a protective layer 150 formed on the absorption layer 140.

The chemical reaction leak sensor 100 of the present invention is a film type sensor that can be installed around a chemical storage tank facility, around a semiconductor facility, a cable surface, a tube surface, and a wall or a bottom.

The base film layer 110 is formed of a chemical resistant film layer such as Teflon, PU, PI, PE, PP, PET, etc., and the conductive wires 120 and 121 are provided on the upper surface thereof.

The conductive wires 120 and 121 may be spaced apart from each other at predetermined intervals, and may be provided side by side in the longitudinal direction on the upper surface of the base film layer 110. The conductive lines 120 and 121 may not only be formed in a straight line shape, but may also be formed in various shapes such as a pulse shape, a dry pulse shape, an external ladder shape, a gear shape, a tooth shape, and a wave shape as shown in FIG. 2.

If the shape of the conductive wires 120 and 121 is not a straight line but is formed in the same pattern as that of FIG. 2, the contact force between the conductive wires 120 and 121 may be improved due to the alignment structure corresponding to the conductive wires 120 and 121 to maximize the energization effect. Can be.

The conductive wires 120 and 121 may be formed by printing conductive materials such as Au, Ag, Ni, Al, Ni, and carbon black.

The reaction layer 130 is formed on the base film layer 110. The reaction layer 130 includes a polymer resin and a pH dye. The polymer resin is a substance that is decomposed or dissolved by reacting with the leaking material, and the constituents and the component ratios may vary depending on whether the material to be detected is an acidic material or a basic material.

For example, when the leaking substance to be detected is an acidic substance, the polymer resin may be polyacrylic resin, polyepoxy resin, poly (D, L-lactide), nylon-6 (poly- ε -caprolactam), nylon-66 (poly Hexamethylene adipamide), polycarbonate, cellulose, poly (vinylacetate) and at least one selected from the group consisting of polysiloxane derivatives, and when the substance to be detected is a basic substance, the polymer resin is a polyhydric phenol modified resin, modified At least one selected from the group consisting of polyacrylic resins, modified polyalkyl acetates, and nitrocellulose.

Conventional products known on the market are leaky chemicals because the reaction layer 130 forming the leak sensor is formed of a material such as PET, PE, PTFE, PVC, and other Teflon-based materials, so that the decomposition and solubility of the leaked acidic or basic substances are low. It took a relatively long time for the material to flow between the conductors 120 and 121. Such long periods of detection of leaked chemicals increase the likelihood of human injury, industrial loss and environmental damage.

Therefore, in order to solve the problems of the prior art, the present invention introduces a polymer resin capable of chemically reacting with the leaking harmful substances to the reaction layer 130. That is, by appropriately introducing a polymer resin capable of rapidly chemically reacting with the leaking material depending on whether the leaking material is acidic or basic as described above, the reaction layer 130 is decomposed or dissolved within a short time so that the lower base film layer ( The conductive wires 120 and 121 provided at 110 may be contacted and flow between the conductive wires 120 and 121.

As such, when the reaction layer 130 dissolves in a short time and the dissolved liquid contacts the conductive wires 120 and 121 and flows in between the conductive wires 120 and 121, a resistance change occurs to generate an alarm signal and the like. It can detect leaks within seconds or minutes, thereby minimizing human and industrial damage.

On the other hand, the alarm of the leak detection sensor 100 may occur due to the inflow of surrounding fine dust or moisture, etc. In particular, the alarm malfunction probability of the leak detection sensor 100 is high in an environment requiring a very fine alarm setting condition. In this way, it is necessary to accurately detect leaks in order to minimize the loss caused by the malfunction of the alarm even though the hazardous substances are not actually leaked.

Based on this need, the present invention introduced pH dye as one component of the reaction layer 130. That is, when the leaking harmful substances are acidic, a pH dye causing color change in the acidic substance is introduced into the reaction layer 130, and when the leaking harmful substances are basic, the pH dye causing the color change in the basic substance is reacted. Introduced into layer 130. As such, by properly introducing the pH dye according to the acidity of the leak detection object, the leaking material chemically reacts with the pH dye, causing a color change and leaving the color converting material at the lower conductors 120 and 121 and around it. It is possible to accurately identify leaks. If there is no color change even though the alarm is activated, it can be identified as an alarm malfunction.

PH dyes that can be used to detect leaks of acidic harmful substances include methyl violet, crystal violet, ethyl violet, Brilliant Green, and malachite green oxalate ( malachite green Oxalate, Methyl Green, Quinanialdine Red, Methanyl yellow, 4-Phenylazodiphenyl amine, Cresol red, Pettymol Thymol blue, p-Phenylazoaniline, erythrosine B, benzzopurpurin 4B, stains-all, orange IV (Orange) IV), Phloxine B, 2,4-Dinitrophenol, Methyl yellow, Bromophenol blue, Congo red, Methyl Methyl orange, Bromocresol green, alpha-naphthyl r at least one selected from the group consisting of ed), methyl red, litmus (azolitmin), bromocresol purple and Leco dye. These pH dyes chemically react with the leaking material and cause color change if the leaked material is acidic.

On the other hand, Alizarin, Bromothymol blue, Phenolic red, Brilliant yellow, Cresol red, Neutral red can be used to detect the leakage of basic harmful substances. (Neutral Red), m-Nitrophenol, Curcumin, m-Cresol Purple, 2,6-Dianilidenecyclohexanone (cyclovalon) (2, 6-Divanillyldenecyclohexanone (Cyclovalone), Thymol blue, o-Cresolphthalein, p-Naphtholbenzein, Phenolphthalein, Phenolphthalein, Ethyl bis (2,4- Dinitrophenyl) acetate (Ethyl bis (2,4-dinitrophenyl) acetate), thymolphthalein, Neil Blue A, Alizarin yellow R, Malachite green hydrochloride Malachite green hydrochloride, Methyl blue, Sodium indigo sulphonate), Orange G, 2,4,6-trinitrotoluene and 1,3,5-trinitrobenzene at least in the group consisting of Preference is given to using one or more selected pH dyes.

Preferably, in the case of the leak sensor for detecting an acid leaking substance, a basic material such as a sodium organo carboxylate derivative may be further introduced into the reaction layer 130, and the leak leak detecting element is basic. In the case of sensors, acidic carboxylic acid derivatives may be further introduced.

In this case, when a material having a property opposite to that of the material to be detected is introduced into the reaction layer 130, an acidic reaction occurs when the leaking material reaches the reaction layer 130, so that voids occur in the polymer resin. The conductors 120 and 121 can be reached in a shorter time.

In addition, an amphoteric oxide that reacts well with both acid and base, such as ZnO and Al ₂ O ₃ , may be further introduced into the reaction layer 130. For example, when an oxide of a metal element or a non-metal element such as Al, Si, Sn, Pb, As, Zn, etc. is added to the reaction layer 130, an acidic group reaction proceeds faster in the reaction layer 130, so The detection time can be shortened.

When the amphoteric material is ZnO or Al ₂ O ₃ , the leaking material and the amphoteric material react as shown in the following scheme.

<For ZnO>

In case of leaking acid: ZnO + 2H ⁺ → Zn ^{2 +} + H ₂ O

Leakage basic: ZnO + H ₂ O + 2 OH → [Zn (OH) ₄ ] ²

<For Al ₂ O ₃ >

In case of leaking acid: Al ₂ O ₃ + 3 H ₂ O + 6 H ₃ O ⁺ → 2 [Al (H ₂ O) ₆ ] ³⁺

Leaking material is basic: Al ₂ O ₃ + 3 H ₂ O + 2 OH → 2 [Al (OH) ₄ ]

As can be seen in the above scheme, since the amphoteric oxide reacts with both acid or basic leaking substances, it can be used regardless of whether it is an acid solution detecting leak sensor or a basic solution detecting leak sensor.

Also, preferably, an absorbent may be further introduced into the reaction layer 130 to promote absorption of the leaking material.

In addition, it is preferable that the protective layer 150 is provided on the reaction layer 130 to protect the coated / printed film from external stimuli such as external heat, shock, ultraviolet rays, and the like. In the protective layer 150, the detection hole 151, which is an inflow path of a harmful chemical to be detected, may be formed in a predetermined pattern. The detection holes 151 may be formed in one line or two or more parallel lines at regular intervals, or may be formed in a predetermined pattern such as a circle, an ellipse, or a straight line, but may be formed in a straight line as shown in FIG. 1. Can be.

Preferably, the band-like leak sensor as in the present invention may be discolored or discolored by ultraviolet rays, so that the UV blocking component may be introduced into the protective layer 150 or the film may be coated.

In addition, preferably, between the protective layer 150 and the reaction layer 130 so that the leaked material flowing through the sensing hole 151 formed in the protective layer 150 may be in contact with the reaction layer 130 better. The absorption layer 140 may be further provided. That is, the leaked material introduced through the sensing hole 151 is well in contact with the reaction layer 130 directly below the sensing hole 151, but the longer the contact with the reaction layer 130 is, the farther it is from the sensing hole 151. This can result in delayed detection time of leaked material. Therefore, it is preferable to introduce the absorber layer 140 so that the leaking material can contact the reaction layer 130 over a large area in a shorter time. The absorber layer 140 may be formed of an absorbent, a swelling agent, a nonwoven fabric, a paper, a fabric, or the like, and may also serve as a protective layer 150 that protects the coated / printed film from external stimuli.

Also, as shown in FIG. 3, a length or a specific identification mark may be displayed on the upper surface or the top of the protective layer 150 at regular intervals based on the start portion. In this way, when the identification mark or the like is displayed, the leakage material can easily know the moving distance.

Hereinafter, the present invention will be described through examples, but these examples are provided to help understanding of the present invention and are not intended to limit the scope of the present invention.

1. For detecting basic leaking substances Leek  sensor

< Comparative example  1> Leek  Sensor fabrication Example

First, conductive lines are printed with conductive ink or silver compound in the longitudinal direction and spaced apart from each other on the upper surface of the base film of PET, PE, PTFE, PVC, or Teflon-based materials.

Next, a solution in which 70 to 80 wt% of polyurethane resin and 20 to 30 wt% of polystyrene resin is mixed is coated with a thickness of 6 to 10 μm so that the upper portion of the conductive line is covered.

Thereafter, a leak detection sensor is manufactured by laminating materials such as PET, PE, PTFE, PVC, or Teflon-based materials having sensing holes formed at regular intervals at positions corresponding to conductive lines on the coating layer.

< Comparative example  2> Leek  Sensor fabrication Example

The thin first and second conductive wires of 5 μm to 7 μm of silver (Ag) material are spaced apart from each other at predetermined intervals by electronic printing on the upper surface of the base film, dried at room temperature for 10 minutes, and then carbon on them. The paste is made of a material, and the third and fourth conductive wires are printed on the first and second conductive wires in the same width and thickness as the first and second conductive wires, and then dried at room temperature for 10 minutes.

When drying is complete, it is composed of 10% ~ 34% of polymer resin (PET, PC, PMMA, ABS, PTFE, PEI, PI, PU), solvent 65% ~ 85%, additive 1% ~ 5% (silicone or fluorine compound) The leak detection sensor is completed by printing the conduction detection transmission layer.

Detection time measurement result according to alkali concentration

The time required for the leak detection sensor manufactured according to Comparative Example 1 and Comparative Example 2 to detect the leaked material was as shown in Table 2 according to the alkali concentration (basicity of the leaked material) of the leaked material.

TABLE 2

From Table 2, in accordance with Comparative Example 1 and Comparative Example 2, the time required for the leak sensor to detect the basic leaking material shows a large difference depending on the basicity (NaOH concentration) of the leaking material, but it takes at least 2 hours, It can be seen that it takes more than 24 hours. That is, according to Comparative Example 1 and Comparative Example 2 it can be seen that after a considerable time passes after the leakage of the basic material to be detected to detect the leaking material.

< Example  1> to < Example  24>

Leak Sensor Fabrication Example

First, a PET film having a thickness of 50-150 μm, a width of 1200 mm, and a length of 1000 m was prepared as a base film layer.

Next, the base film layer is installed in a gravure printing machine, and commercial silver paste is printed in two strands at intervals of 4 mm with a thickness of 3-5 µm. At this time, silver conductor was printed under the printing conditions of the temperature of 80 degreeC of a roller, a speed | rate 100m / min, and high pressure.

Subsequently, the base film layer on which the silver wire was printed was installed again in a gravure printing machine, put the mixed polymer resin into the printing machine, and printed with a thickness of 3-5 μm to form a reaction layer film. The components of the leak sensor reaction layer for detecting a basic leaking material are shown in Table 3 according to Examples 1 to 24.

Finally, the protective layer was formed by laminating a UV protective film having a sensing hole formed on the film on which the reaction layer was printed.

TABLE 3

In Table 3, the components and ratios of Phenolic resin, SST-PENY-ND1 ink, SST-PENY-NDY ink, SST-PENY-NDB ink, pH DYE, Leveling agentm, dispersant and antifoaming agent are shown in Table 4 below.

TABLE 4

Detection time measurement result according to alkali concentration

According to the leak detection sensor prepared according to Examples 1 to 24 of Table 3 to measure the time required to detect the basic leaking material according to the alkali concentration (basicity of the leaking material) of Table 3 and It was like

TABLE 5

As can be seen in Table 5, the leak detection sensor manufactured according to the embodiment of the present invention took a few seconds to several minutes to detect the basic leaking material, the higher the basicity of the leaking material is more time to detect Was taken.

In addition, even though the components constituting the reaction layer are the same, the detection time varies depending on the component ratio, in particular, the amount of phenol resin and the mixing ratio of SST-PENY ND1 ink, and the leakage is increased as the amount of phenol resin increases and the amount of SST-PENY ND1 ink decreases. The time required for material detection was small.

Therefore, it can be seen that the leak detection sensor manufactured according to the embodiment of the present invention detects the basic leaking material in a much shorter time than the leak detection sensors of Comparative Example 1 and Comparative Example 2 of Table 2.

2. Acid leak detection Leek  sensor

< Comparative example  3> Leek  Sensor fabrication Example

Prepare a base cable, a lobe made by covering a tube with two strands of hot wire with a hot melting insulator. Then, the sensor wire is manufactured by coating a hot melt conductive polymer on a smaller diameter sensor wire.

Then, the polymer that is dissolved or decomposed in the water-soluble chemicals is re-coated on the sensor wire coated with the conductive polymer prepared before. These polymeric materials used PVC, polyolefin, PVDF, TPE, TPR, CPE, polyester elastomer, PVDF, nylon, PET, polyurethane or fluorine material mixed with conductive carbon particles.

Finally, each sensor was twisted spirally or spirally to make a sensor.

< Comparative example  4> Leek  Sensor fabrication Example

The first and second thin wires of 5 μm to 7 μm of silver (Ag) material are spaced apart from each other at predetermined intervals by electronic printing on the upper surface of the base film, dried at room temperature for 10 minutes, and then carbon again thereon. The third and fourth conductive wires are printed on the first and second conductive wires with the same width and thickness as those of the first and second conductive wires, and then dried at room temperature for 10 minutes. When drying is complete, the base film is covered with a polymer resin solution containing 2 to 30% by weight of a graphene dispersion, 35 to 60% by weight of cationic polystyrene, and 35 to 60% by weight of cationic polyurethane, which are well dissolved in a weakly acidic solution. On the upper surface of the layer was coated with a thickness of 2 ~ 20um to complete the leak detection sensor.

< Comparative example  5> Leek  Sensor fabrication Example

The first conductive wire and the second conductive wire having a thickness of 5 μm to 7 μm are gravibly printed on the base film of any one of PET, PC, PMMA, ABS, PTFE, PEI, PI, and PU using silver (Ag) paste or ink. After drying at room temperature for 10 minutes, the carbon powder paste is electronically printed on the same thickness and width thereon, and then dried at room temperature for 10 minutes. When the drying is completed, the conduction sensing transmission layer was combined with the base film while covering the conductive wire to produce a leak detection sensor.

< Example  25> and < Example  36> Leek  Sensor fabrication Example

First, a PET film having a thickness of 50-150 μm, a width of 1200 mm, and a length of 1000 m was prepared as a base film layer.

Next, the base film layer is installed in a gravure printing machine, and commercial silver paste is printed in two strands at intervals of 4 mm with a thickness of 3-5 µm. At this time, silver conductor was printed under the printing conditions of the temperature of 80 degreeC of a roller, the speed | rate 100 m / min, and high pressure.

Subsequently, the base film layer on which the silver wire was printed was installed again in a gravure printing machine, put the mixed polymer resin into the printing machine, and printed with a thickness of 3-5 μm to form a reaction layer film. Constituents and component ratios of the reaction layer are shown in Table 7 below.

Finally, the protective layer was formed by laminating a UV protective film having a sensing hole formed on the film on which the reaction layer was printed.

TABLE 7

In Table 7, the components of SST-PENY-ND1 ink, SST-PENY-NDY ink, SST-PENY-NDB ink, pH DYE, Leveling agentm, dispersant and antifoaming agent are shown in Table 7 below.

TABLE 8

Detection time measurement result

As a result of measuring the detection time of the leaked material using the leak detection sensor manufactured according to Comparative Examples 3 to 5, and Examples 25 to 36 was as shown in Table 9 below.

TABLE 9

As can be seen from Table 9, Comparative Example 3 to Comparative Example 5, Example 31, all of the leaked material is the same as 70% sulfuric acid, there is a significant difference in the time required to detect the leaked material Able to know. That is, in Example 31 of the present invention, while detecting sulfuric acid as a leaking material within 15 seconds, in the case of Comparative Examples 3 to 5, the leaking material was detected after a much longer time.

In addition, as can be seen in Examples 26 to 28 of the present invention, it can be seen that when the leaked material is nitric acid, the leaked material is detected within a very short time regardless of the% concentration, and the leaked material is sulfuric acid. In the case of, it can be seen that the larger the% concentration, the less time is required to detect, and according to an embodiment of the present invention, it is possible to detect leaked substances within a very short time regardless of the acid type and% concentration. Can be.

From the above description, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. In this regard, it should be understood that the embodiments and experimental examples described above are illustrative in all respects and not restrictive. The scope of the present invention should be construed that all changes or modifications derived from the meaning and scope of the following claims and equivalent concepts rather than the detailed description are included in the scope of the present invention.

100: leak sensor 110: base film layer
120, 121: lead 130: reaction layer
140: absorber layer 150: protective layer
151: detection hole

Claims (8)

In the chemical reaction leak detection sensor for detecting hazardous basic leaking material,
A base film layer having conductive lines spaced apart from each other at a predetermined interval on an upper surface thereof;
A reaction layer formed on the base film layer, the polymer layer decomposing or dissolving by reacting with the leaking substance, and including a pH dye, a dispersant, and an antifoaming agent that changes color by reacting with the leaking substance;
A protective layer formed on the reaction layer to protect from an external stimulus and having a sensing hole into which the leaking material flows; And
And an absorbing layer formed between the reaction layer and the protective layer to absorb the leaking material introduced through the sensing hole to improve contact force between the leaking material and the conductive wire.
An upper surface or an uppermost portion of the protective layer may display a length at a predetermined interval or a identifier indicating a predetermined interval based on a start portion.
When the leaking material reacts with the polymer resin to decompose or dissolve the polymer resin, an alarm is generated when contacting the wire,
The polymer resin is 1 to 60 parts by weight of phenol resin, 34 to 93 parts by weight of SST-PENY-ND1 ink, 1.2 parts by weight of SST-PENY-NDY ink and 0.3 parts by weight of SST-PENY-NDB based on 100 parts by weight of the total reaction layer. contains ink,
The SST-PENY-ND1 ink is 4 to 6% by weight of polyvinyl copolymer, 20 to 25% by weight of polyurethane, 0.2 to 0.5% by weight of polypropylene chloride, 1 to 3% by weight of iso-propyl alcohol, 15 ˜20% by weight methyl ethyl ketone, 30-34% by weight ethyl acetate, 3-7% by weight 1-methoxy-2-propanol and 5-10% by weight propylene glycol monomethyl ether acetate,
The SST-PENY-NDY ink is 5-8% by weight of CI Pigment Yellow 13, 4-6% by weight of polyvinyl copolymer, 20-25% by weight of polyurethane, 0.2-0.5% by weight of polypropylene chloride, 1 ˜3 weight percent iso-propyl alcohol, 15-20 weight percent methyl ethyl ketone, 30-34 weight percent ethyl acetate, 3-7 weight percent 1-methoxy-2-propanol and 5-10 weight percent Consisting of propylene glycol monomethyl ether acetate,
The SST-PENY-NDB ink is 8-11% CI Pigment Green 7, 4-6% polyvinyl copolymer, 20-25% polyurethane, 0.2-0.5% by weight polypropylene chloride, 1 ~ 3 weight percent iso-propyl alcohol, 15-20 weight percent methyl ethyl ketone, 30-34 weight percent ethyl acetate, 3-7 weight percent 1-methoxy-2-propanol and 5-10 weight percent propylene A chemical reaction leak detection sensor for detecting hazardous leaks, characterized in that consisting of glycol monomethyl ether acetate. In the chemical reaction leak detection sensor for detecting hazardous acid leaks,
A base film layer having conductive lines spaced apart from each other at a predetermined interval on an upper surface thereof;
A reaction layer formed on the base film layer, the polymer layer decomposing or dissolving by reacting with the leaking substance, and including a pH dye, a dispersant, and an antifoaming agent that changes color by reacting with the leaking substance;
A protective layer formed on the reaction layer to protect from an external stimulus and having a sensing hole into which the leaking material flows; And
And an absorbing layer formed between the reaction layer and the protective layer to absorb the leaking material introduced through the sensing hole to improve contact force between the leaking material and the conductive wire.
An upper surface or an uppermost portion of the protective layer may display a length at a predetermined interval or a identifier indicating a predetermined interval based on a start portion.
When the leaking material reacts with the polymer resin to decompose or dissolve the polymer resin, an alarm is generated when the conductive material contacts the wire.
The polymer resin includes 95.5 parts by weight of SST-PENY-ND1 ink, 1.2 parts by weight of SST-PENY-NDY ink, and 0.3 parts by weight of SST-PENY-NDB ink, based on 100 parts by weight of the total reaction layer.
The SST-PENY-ND1 ink is 4 to 6% by weight of polyvinyl copolymer, 20 to 25% by weight of polyurethane, 0.2 to 0.5% by weight of polypropylene chloride, 1 to 3% by weight of iso-propyl alcohol, 15 ˜20% by weight methyl ethyl ketone, 30-34% by weight ethyl acetate, 3-7% by weight 1-methoxy-2-propanol and 5-10% by weight propylene glycol monomethyl ether acetate,
The SST-PENY-NDY ink is 5-8% by weight of CI Pigment Yellow 13, 4-6% by weight of polyvinyl copolymer, 20-25% by weight of polyurethane, 0.2-0.5% by weight of polypropylene chloride, 1 ˜3 weight percent iso-propyl alcohol, 15-20 weight percent methyl ethyl ketone, 30-34 weight percent ethyl acetate, 3-7 weight percent 1-methoxy-2-propanol and 5-10 weight percent Consisting of propylene glycol monomethyl ether acetate,
The SST-PENY-NDB ink is 8 to 11% by weight of CI Pigment Green 7, 4 to 6% by weight of polyvinyl copolymer, 20 to 25% by weight of polyurethane, 0.2 to 0.5% by weight of polypropylene chloride, 1 ˜3 weight percent iso-propyl alcohol, 15-20 weight percent methyl ethyl ketone, 30-34 weight percent ethyl acetate, 3-7 weight percent 1-methoxy-2-propanol and 5-10 weight percent Chemical reaction leak detection sensor for the detection of hazardous leaks, characterized in that consisting of propylene glycol monomethyl ether acetate. delete delete delete delete delete delete

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