KR101959815B1 - Insulating detergent composition for communication and electric equipment - Google Patents

Abstract

The present invention relates to an insulating detergent composition for a current carrying device, which does not comprise a haloalkane compound such as chloroalkane or fluoroalkane which is harmful to the human body and the environment and comprises one (component B) selected from the group consisting of hydrogenated heavy naphtha (component A) and light naphtha adding isoparaffinic hydrocarbon or hydrogen. Preferably, 7 to 25 parts by weight of dimethylsiloxane with respect to the component B is further blended.

Description

TECHNICAL FIELD [0001] The present invention relates to an insulated detergent composition,

More particularly, the present invention relates to a composition for insulation detergent composition which rapidly removes contaminants in communication electric equipment while maintaining insulation, and does not deteriorate cleaning phosphorus and the surrounding environment, treated heavy naphtha.

Conventional energizing devices, especially those which are installed outdoors and inside of the switchgear including circuit breakers, voltmeters, ammeters, electric power meters, integrated electric power meters, etc., are attached with dust and various foreign substances and cause communication, electric malfunction, malfunction, And a detergent for removing the detergent has been developed and sold. Among these insulating detergent compositions, inorganic salts such as ammonium fluoride, potassium hydroxide and the like and a composition containing a surfactant deteriorate the cleaning ability against pollution sources such as dust and oil, and the range of use thereof is limited. In addition, It is sometimes accompanied by a case where the compatibility is deteriorated and storage is not possible for a long period of time.

Particularly, chloroalkane compounds such as dichloroethane, trichloroethane and pentachloroethane have been widely used as cleaners since they have excellent detergency (see Patent Documents 1 to 3). Recently, these compounds have been widely used as cleansing agents for skin, (Merck Index 10057, 7179, 4734, etc.), and governments have also suppressed their use as much as possible. Nevertheless, most of the commercially available electrical insulating insulation cleaners are generally used in a composition of about 20 to 45% by weight based on the composition of the chloroalkane compound.

Further, in the later patent documents, it has been proposed to incorporate 35 to 90 parts by weight of a fluoroalkane compound such as difluoroethane, tetrafluoroethane, pentafluoroethane or the like, but these compounds are not suitable for the destruction of the ozone layer, His use has been limited in recent years due to deterioration of his. In the later patent documents, liquid paraffinic hydrocarbons are added to these gases and mixed using a stirrer. However, these compounds are gaseous compounds which are mainly used as propellants or refrigerants, I can not understand how these gaseous compounds are compounded. That is, 22.4 liters of the fluorine compound of such a gas is 22.4 liters, and it can not be understood whether it is liquefied or used, or whether the fluoroalkane in the liquid is dissolved in the liquid hydrocarbon. If the insulating detergent is made of a spray agent using these fluoroalkane compounds, the compounding ratio disclosed in the patent literature probably seems to be wrong.

In the case of using paraffinic hydrocarbons alone, it has been proposed to use halogenated alkane compounds in combination with low paraffinic hydrocarbons, low flash point, low dielectric breakdown voltage and low cleaning power. However, As described above, is undesirable because it deteriorates the environment.

Further, although the hydrogenated refined hard refined oil is used, the refiner containing the hydrogenated refined hard refined oil is suitable as a detergent because of its high dielectric breakdown voltage and high flash point, but has a problem that the natural evaporation performance of the residue after cleaning is lowered It is known.

Patent Document 1: Korean Patent Registration No. 10-0965430 Patent Document 2: Korean Patent Registration No. 10-1487239 Patent Document 3: Korean Patent Registration No. 10-1520648

As described above, the conventional insulating detergent composition uses a chloroalkane compound harmful to health and environment, or a composition containing inorganic salts and a surfactant deteriorates detergency against pollution sources such as dust and oil, and hard naphtha There is a problem that the natural evaporation performance of the residue after washing is deteriorated. The problem to be solved by the present invention is to solve such a problem.

In order to solve the above-mentioned problems, the present inventors have found that the use of chloralkanes harmful to humans and the environment and fluoroalkanes harmful to the environment, inorganic salts having low solubility, surfactants that pollute the environment,

Hydrogenated heavy naphtha and isoparaffinic hydrocarbons; And hydrogenated naphtha, and found that the composition exhibits surprisingly excellent dielectric breakdown voltage, high flash point, and low vapor pressure as a result of testing with a current-carrying device insulating detergent. The present invention has been accomplished on the basis of this finding .

That is, the present invention is to provide an insulating composition for electrical insulating devices, comprising at least one selected from the group consisting of hydrogenated heavy naphtha, isoparaffinic hydrocarbon and hydrogenated naphtha.

The present invention also provides a composition comprising dimethylsiloxane in the electrical insulator detergent composition.

In addition, the present invention provides a composition containing the ultraviolet screening agent or the antioxidant in the insulating composition of the present invention.

INDUSTRIAL APPLICABILITY According to the insulated detergent composition for energizing device according to the present invention, excelling in the ability to clean externally installed equipment such as communication, electric equipment, especially an electric switchboard, and excellent detergent cleaning effect.

1 is a copy of the test report of the Korea Electrotechnology Research Institute
2 is a copy of the test report of the Korean Petroleum Institute of the composition of the insulating varnish for electrification device of Example 7

The present invention can be variously modified and may have various embodiments. In the following, the present invention will be described in detail in the preferred embodiments of the present invention. It should be understood, however, that the invention is not to be limited by the exemplified embodiments, and that the spirit and scope of the invention encompass ordinary variations and equivalents of the illustrated forms.

Of the components to be incorporated in the composition of the present invention, hydrotreated heavy naphtha (hereinafter referred to as component A) is a naphtha which is hydrogenated in the presence of a catalyst in a pressure hydrogen gas flow rate as a hydrogenated naphtha, Clean 420N (trade name, Korea Haiton Co., Ltd.) is used. This Clean 420N can be safely blended at room temperature with a flash point of 68 ° C.

The component to be added to the component A was ISPOARAFFIN L (CAS No. 64742-48-9 (trade name, boiling point: 155 to 217 캜, density 0.76 to 0.79 kg / dm 3 (15 캜; supplied by Adamas Reagent Ltd. ) And Isopr G (trade name, manufactured by Exxonmobil Chemical, a flash point of 41 캜, a density of 0.748 kg / dm 3 (15 캜) and a specific gravity of 1.46 mm 2 / s) (hereinafter referred to as "component B"). Can be blended.

The blending ratio of the component B to the component A is preferably 60 to 80:20 to 40 by weight. When the blending ratio of the component A is 60 parts by weight or less, the viscosity increases and the handling property is deteriorated, the detergency is lowered, the miscibility of the composition is lowered, and the uniformity of the cleaning agent is deteriorated. If the component A is blended in an amount of 80 parts by weight or more based on the component B, the handling property is good, but the detergency is low, the volatility is high, and the flash point is low.

In the present invention, dimethylsiloxane may be added in an amount of 7 to 25% by weight based on the B component in the composition, in addition to the components A and B described above. As such dimethylsiloxane, a terminal group is terminated by a hydroxyl group and XIAMETER (R) OHX-4010, OHX-4010, PMS-200F (CAS No. 70131-67-8 ), XIAMETER (R) OHX-4010 (XIAMETER (R) OHX-4010 manufactured by Dow Corning Incorporated (Korea), XIAMETER (R) PMS- As a result of observing the addition of dimethylsiloxane, it has been found that air bubbles are removed at the time of compounding or after compounding to improve the miscibility, stability and weatherability of the components A and B of the insulating detergent However, if it exceeds the above range, the miscibility of the component A and the component B decreases, and it is less likely to form a precipitate.

In the present invention, 5 parts by weight, preferably 0.5 to 3.5 parts by weight, of an antioxidant and an ultraviolet screening agent may be added to 100 parts by weight of the components A and B, respectively.

The antioxidant is not particularly limited, but may be exemplified by na-SUL BSN (manufactured by KING INDUSTRIY) and the like, and cs123 / 5100 (SONGSORB), although not particularly limited, as an ultraviolet screening agent.

When the insulating detergent containing the components A and B is used, it is not necessary to blend the antioxidants and the ultraviolet screening agent when used immediately. However, when the insulating detergent is used after long-term storage, the detergent may deteriorate with time . These antioxidants and ultraviolet screening agents may be added in the above range.

Hereinafter, the present invention will be described in detail with reference to Examples and Test Examples.

First, a test example will be described.

1. Insulation and Voltage Test

<Test Method>

According to KS C IEC 60156, the sample is filled into the vessel and after 5 minutes the voltage is raised from 0 at a rate of (2.0 ± 0.2) kV / s until constant breakdown occurs. After 6 insulation breakdowns at break intervals for at least 2 minutes after insulation breakdown, calculate the average of 6 breakdowns in kV.

<Test Conditions>

- Electrode used: 12.5mm brass spherical electrode

- Spacing of electrode: 2.50mm

- Ambient temperature: 22.0 ℃

- Feed temperature: 21.0 ℃

2. Flash point test

<Test Method>

According to Clause 12 of KS C 2101, when the flame is close to the steam of the insulating oil, the lowest sample temperature at which the mixture gas of the insulating oil and the air burns for 5 seconds or more under the following test conditions is measured.

<Test Conditions>

- Diameter of flame: (3 ~ 4) mm

- Temperature rise rate: (5 ~ 6) ℃ / min

- Flame application: approach the flame from a temperature lower than the expected flash point (23 ± 6) ℃ and approach every 2 ℃.

Example 1

40 parts by weight of ISOPARAFFIN L (Cas No. 64742-48-9) as component B was added to 60 parts by weight of a hydrogenated heavy naphtha (Clean 420N, Korea Hauson Co., Ltd.) as component A, and the mixture was stirred at room temperature And the mixture was stirred at 500 rpm for 15 minutes to obtain an insulated cleaner for electrification device.

The breakdown voltage, flash point, vapor pressure (ASTM D5191-15) and moisture (KS C 2101-2006) of the obtained cleaning agent were measured, and the results are shown in Tables 1 and 2 below.

Comparative Example 1

70 parts by weight of ISOPARAFFIN L (Cas No. 64742-48-9) L of Component B was added to 30 parts by weight of Clean 420N as Component A and stirred at 500 rpm for 15 minutes at room temperature (20 ° C) .

When the composition was stored for 24 hours, the appearance of the composition was observed. As a result, layer separation occurred, the flash point was low, and the viscosity of the composition was high.

Example 2

20 parts by weight of Cas ISOPARAFFIN L (No. 64742-48-9) as component B was added to 80 parts by weight of Clean 420N as Component A and stirred at 500 rpm for 15 minutes at room temperature (20 ° C) .

Comparative Example 2

50 parts by weight of ISOPARAFFIN L (Cas No. 64742-48-9) L of Component B was added to 50 parts by weight of Clean 420N as Component A, stirred at 500 rpm at room temperature (20 ° C) for 15 minutes, .

When the composition was stored for 24 hours, the appearance of the composition was not greatly changed, but the cleaning power was poor and the flash point was low.

The breakdown voltage, the flash point, the vapor pressure and the moisture of the detergent obtained in Comparative Example 1 were measured in the same manner as in Example 1, and the results are shown in Tables 1 and 2 below.

Example 3

An insulating detergent was obtained in the same manner as in Example 1, and 2.00 parts by weight of na-SUL BSN was added to 100 parts by weight of this detergent composition. The obtained electrification device insulating detergent was stored for 60 days, and then the degree of denaturation, the breakdown voltage of the insulation, the flash point, the vapor pressure and the moisture were measured, and the results are shown in Tables 1 and 2 below.

Example 4

An insulating detergent was obtained in the same manner as in Example 1, and 1.5 parts by weight of cs123 / 5100 (manufactured by Songwon Chemical Co., Ltd.) was added to 100 parts by weight of this detergent composition. The obtained electrification device insulating detergent was stored for 60 days, and then the degree of denaturation, the breakdown voltage of the insulation, the flash point, the vapor pressure and the moisture were measured, and the results are shown in Tables 1 and 2 below.

Example 5

35 parts by weight of ISOPARAFFIN L (Cas No. 64742-48-9) as component B and 5 parts by weight of dimethyldiloxane OHX-4061 (manufactured by Dow Corning Toray Co., Ltd.) were added to 60 parts by weight of Clean 420N as component A, Lt; 0 &gt; C) at 800 rpm for 20 minutes to obtain an insulated cleaning agent for electrification device.

The breakdown voltage, flash point, vapor pressure (ASTM D5191-15) and moisture (KS C 2101-2006) of the obtained cleaning agent were measured, and the results are shown in Tables 1 and 2 below.

Examples 6 to 10

In accordance with the above-described embodiments, an electrification device insulating cleaning agent was obtained by using the components A, B, dimethyl siloxane, antioxidant, ultraviolet ray blocking agent and the like described in the following Tables 1 and 2.

The breakdown voltage, flash point, vapor pressure (ASTM D5191-15) and moisture (KS C 2101-2006) of the obtained cleaning agent were measured, and the results are shown in Tables 1 and 2 below.

Ingredients Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Component A (Clean 420N) 60 80 60 40 60 60 Component B (ISOPARAFFIN L) 40 20 40 40 35 35 Component B (ISPAR G) Dimethylsiloxane OHX-4061 5 Dimethylsiloxane OHX-4010 5 Dimethylsiloxane ONS-200F Antioxidant (na-SUL BSN) 2.0 2.0 Sunscreen (cs123 / 5100) 1.5 Cleansing power ○ ○ ○ ○ ○ ○ flash point 60.0 58.5 56.5 56.5 55 55 Layer separation none none none none none none

Ingredients Example 7 Example 8 Example 9 Example 10 Comparative Example 1 Comparative Example 2 Component A (Clean 420N) 60 60 65 65 30 50 Component B (ISOPARAFFIN L) 35 30 5 70 50 Component B (ISPAR G) 35 5 30 Dimethylsiloxane OHX-4061 Dimethylsiloxane OHX-4010 5 Dimethylsiloxane ONS-200F 3 Antioxidant (na-SUL BSN) 1.5 0.2 Sunscreen (cs123 / 5100) 1.5 0.2 Cleansing power ○ ○ ○ ○ × △ Flash point (℃) 54 55 57 55 34 44 Layer separation none none none none Layer separation none

In the above table,?: Excellent cleaning power

△: Middle washing force

×: poor cleaning power

The insulation breakdown test and the flash point test were conducted by the Korea Electrotechnology Research Institute (KEITI), and the average electrical insulation breakdown value (kV) was 79.2 and the flash point was 56.5 ° C ).

 In addition, when the composition of the insulated cleaning composition for electric apparatus of Example 7 was tested in Korea Petroleum Management Administration, the flash point was 54.0 ° C, the water content was 0.010, the vapor pressure was less than 7 kPa, and the insulation breakdown voltage was 38.8 kV.

Claims (6)

1. An energizing insulating detergent,
60 to 80 parts by weight of the hydrogenated heavy naphtha and
Isoparaffinic hydrocarbon and hydrogenated naphtha, 20 to 40 parts by weight of at least one member selected from the group consisting of
By weight based on the total weight of the composition. delete The electrifying insulation composition according to claim 1, further comprising 7 to 25 parts by weight of dimethylsiloxane based on at least one selected from the group consisting of isoparaffinic hydrocarbons and hydrogenated naphtha. The electroluminescent insulation cleaner composition of claim 3, wherein the terminal group of the dimethylsiloxane is formed of a hydroxy group. The electrical insulating detergent composition according to claim 1, further comprising 0.5 to 3.5 parts by weight of an antioxidant. The electrical insulating detergent composition according to claim 1, further comprising 0.5 to 3.5 parts by weight of an ultraviolet screening agent.

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