KR100410335B1 - Damping Fluid for Enging Mounting - Google Patents

Damping Fluid for Enging Mounting Download PDF

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Publication number
KR100410335B1
KR100410335B1 KR10-2001-0039573A KR20010039573A KR100410335B1 KR 100410335 B1 KR100410335 B1 KR 100410335B1 KR 20010039573 A KR20010039573 A KR 20010039573A KR 100410335 B1 KR100410335 B1 KR 100410335B1
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South Korea
Prior art keywords
liquid
engine
liquid composition
mounting
ethylene glycol
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KR10-2001-0039573A
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Korean (ko)
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KR20030002971A (en
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박주천
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현대자동차주식회사
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines

Abstract

본 발명은 자동차 엔진 마운트용 액체 조성물에 관한 것으로서, 더욱 상세하게는 일정 함량의 에틸렌글리콜, 프로필렌글리콜, 트리에탄올아민, 소디움 벤조에이트, 벤조트리아졸 등을 함유한 엔진 마운트액을 제조함으로써 온도에 관계없이 항상 일정한 엔진 마운트의 역할을 할 수 있고 주액실과 부액실 사이에 있는 금속부분의 방청효과와 액에 노출된 고무부분을 충분히 보호시켜 줌으로써 엔진의 진동을 능동적으로 흡수할 수 있는 자동차 엔진 마운트용 액체 조성물에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid composition for automobile engine mounts, and more particularly, by preparing an engine mount liquid containing a certain amount of ethylene glycol, propylene glycol, triethanolamine, sodium benzoate, benzotriazole, and the like regardless of temperature. Liquid composition for automobile engine mounts that can always act as a constant engine mount and can actively absorb engine vibrations by protecting the rubber parts exposed to the liquid and the rust prevention effect of the metal part between the injection and injection chambers. It is about.

Description

자동차 엔진 마운트용 액체 조성물{Damping Fluid for Enging Mounting}Liquid composition for automobile engine mounting {Damping Fluid for Enging Mounting}

본 발명은 자동차 엔진 마운트용 액체 조성물에 관한 것으로서, 더욱 상세하게는 일정 함량의 에틸렌글리콜, 프로필렌글리콜, 트리에탄올아민, 소디움 벤조에이트, 벤조트리아졸 등을 함유한 엔진 마운트액을 제조함으로써 온도에 관계없이 항상 일정한 엔진 마운트의 역할을 할 수 있고 주액실과 부액실 사이에 있는 금속부분의 방청효과와 액에 노출된 고무부분을 충분히 보호시켜 줌으로써 엔진의 진동을 능동적으로 흡수할 수 있는 자동차 엔진 마운트용 액체 조성물에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid composition for automobile engine mounts, and more particularly, by preparing an engine mount liquid containing a certain amount of ethylene glycol, propylene glycol, triethanolamine, sodium benzoate, benzotriazole, and the like regardless of temperature. Liquid composition for automobile engine mounts that can always act as a constant engine mount and can actively absorb engine vibrations by protecting the rubber parts exposed to the liquid and the rust prevention effect of the metal part between the injection and injection chambers. It is about.

종래 자동차용 엔진 마운트용 액체 조성물로는 단순히 물과 에틸렌글리콜을 1 : 1로만 사용되었다. 그러나, 물과 에틸렌글리콜을 1 : 1로 사용한 마운트용 액체는 비점이 낮아 차량의 장시간 운행시 또는 노면상태가 좋지 않는 곳을 운행할 경우 엔진 마운트의 온도상승으로 인한 마운트 내부의 액체는 증기가 발생하게 되면서 부피가 팽창되어 충격흡수를 전혀 할 수 없을 뿐만 아니라 마운트 내부 재질이 금속으로된 주액실과 부액실 사이에 있는 오리피스의 밸브를 부식시키고 액에 노출된 고무부분 또한 미세한 균열이 발생되었다.Conventionally, the liquid composition for the engine mount for automobiles was simply used with water and ethylene glycol 1: 1. However, the liquid for mounting with water and ethylene glycol 1: 1 has low boiling point and vapor inside the mount due to the temperature rise of the engine mount when driving the vehicle for a long time or when the road condition is poor. As the volume is expanded, shock absorption is not possible at all, as well as corroding the valve of the orifice between the pour chamber and the liquefied chamber made of metal with the mount material, and the rubber part exposed to the liquid also has a minute crack.

이에, 본 발명자들은 상기와 같은 문제점을 해결하고자 노력한 결과, 온도에 관계없이 항상 일정하게 엔진 마운트의 역할을 충실히 할 수 있을 뿐만 아니라 주액실과 부액실 사이에 있는 금속부분의 방청효과와 액에 노출된 고무부분을 충분히 보호할 수 있어 엔진의 진동을 능동적으로 흡수할 수 있는 액체봉입 마운트에 가장 적합한 마운트액을 제조함으로써 본 발명을 완성하게 되었다Accordingly, the present inventors have attempted to solve the above problems, and as a result, not only can the engine mount always be faithfully maintained regardless of the temperature, but also the rust prevention effect of the metal part between the injection chamber and the liquid injection chamber and the liquid are exposed. The present invention has been completed by manufacturing a mount liquid that is most suitable for a liquid-mounted mount that can sufficiently protect the rubber part and actively absorb vibration of the engine.

따라서, 본 발명은 에틸렌글리콜 68 ∼ 72 중량%, 프로필렌글리콜 23 ∼ 27 중량%, 트리에탄올아민 0.2 ∼ 1.3 중량%, 소디움 벤조에이트 0.5 ∼ 3 중량%, 벤조트리아졸 0.3 ∼ 1.5 중량%, 수분 1.0 ∼ 2.5 중량%를 함유한 자동차 엔진 마운트용 액체 조성물을 제공하는데 그 목적이 있다.Therefore, the present invention is 68 to 72% by weight of ethylene glycol, 23 to 27% by weight of propylene glycol, 0.2 to 1.3% by weight of triethanolamine, 0.5 to 3% by weight of sodium benzoate, 0.3 to 1.5% by weight of benzotriazole, 1.0 to moisture It is an object to provide a liquid composition for mounting an automotive engine containing 2.5% by weight.

본 발명은 에틸렌글리콜 68 ∼ 72 중량%, 프로필렌글리콜 23 ∼ 27 중량%, 트리에탄올아민 0.2 ∼ 1.3 중량%, 소디움 벤조에이트 0.5 ∼ 3 중량%, 벤조트리아졸 0.3 ∼ 1.5 중량%, 수분 1.0 ∼ 2.5 중량%를 함유한 자동차 엔진 마운트용 액체 조성물을 그 특징으로 한다.The present invention is 68 to 72 wt% ethylene glycol, 23 to 27 wt% propylene glycol, 0.2 to 1.3 wt% triethanolamine, 0.5 to 3 wt% sodium benzoate, 0.3 to 1.5 wt% benzotriazole, 1.0 to 2.5 wt% It is characterized by the liquid composition for automobile engine mounting containing%.

이와 같은 본 발명을 더욱 상세히 설명하면 다음과 같다.Referring to the present invention in more detail as follows.

본 발명은 마운트액에 널리 사용되어 왔으나 온도변화에 따른 부피 및 점도 변화가 심한 에틸렌글리콜 수용액을 사용하지 않고 고온 및 저온시의 부피와 점도를 일정하게 유지시키기 위하여 에틸렌글리콜 68 ∼ 72 중량%에 저온성이 우수한 프로필렌글리콜을 23 ∼ 27 중량% 첨가한다. 이때 에틸렌글리콜이 68 중량% 미만일 경우 저온에서의 점도가 낮고 Cost가 상승하는 문제점이 있으며, 72 중량% 초과하여 사용할 경우에는 저온에서의 점도가 높아 사용온도의 범위가 좁아지는 문제점이 있다. 또한, 프로필렌글리콜이 상기 범위 미만이거나 초과할 경우 저온에서의 유동성에 문제가 있다.The present invention has been widely used in the mount liquid but low temperature in 68 ~ 72% by weight of ethylene glycol in order to maintain a constant volume and viscosity at high and low temperature without using an ethylene glycol aqueous solution that has a large volume and viscosity change according to temperature changes 23-27 weight% of propylene glycol excellent in the property is added. At this time, when the ethylene glycol is less than 68% by weight, there is a problem in that the viscosity at low temperature and the cost rises, and when used in excess of 72% by weight, there is a problem in that the range of use temperature is narrowed due to the high viscosity at low temperature. In addition, there is a problem in fluidity at low temperatures when propylene glycol is below or above the above range.

한편, 액의 산화방지와 오리피스의 방청성, 그리고 고무의 노화방지를 위하여 수명이 짧거나 고무에 악영향을 주는 무기계 첨가제를 사용하지 않고 수명이 긴 유기계 첨가제인 트리에탄올아민 0.2 ∼ 1.3 중량%, 소디움 벤조에이트 0.5 ∼ 3 중량%, 벤조트리아졸 0.3 ∼ 1.5 중량%을 사용한다. 상기 첨가제들이 범위를 벗어날 경우 오히려 침전, 부식 고무의 물성변화 등의 역효과가 발생하며, 원가 또한 상승하므로 각 첨가제 및 주재료의 적정 사용량은 상기 범위 내에서 이루어 져야 한다.On the other hand, 0.2 to 1.3% by weight of triethanolamine, sodium benzoate, which is a long-life organic additive without using inorganic additives that have a short lifespan or adversely affect rubbers, for preventing oxidation of liquids, rust resistance of orifices, and anti-aging of rubbers. 0.5 to 3% by weight and 0.3 to 1.5% by weight of benzotriazole are used. If the additives are out of the range, rather adverse effects such as precipitation, changes in the properties of the corrosive rubber, and the cost is also increased, the appropriate amount of each additive and the main material should be made within the above range.

또한, 상기 첨가제들의 배합 시 유의사항은 pH가 7 ∼ 9사이에 들도록 해야 한다. 그 방법으로는 첨가제들을 규정비율로 혼합하고 여기에 수산화나트륨 일정량을 소량의 물에 용해시킨 액으로 pH 가 7 ∼ 9의 범위에 들도록 pH측정기로 확인하면서 사용량을 조절한다. pH가 7 미만이거나 9를 초과할 경우 오리피스의 부식을 일으킬 수 있다.In addition, the precautions when formulating the additives should be within the pH of 7-9. In this method, the additives are mixed at a prescribed ratio, and a certain amount of sodium hydroxide is dissolved in a small amount of water, and the amount used is checked while checking with a pH meter so that the pH is in the range of 7-9. If the pH is below 7 or above 9, the orifice may be corroded.

본 발명에 따른 자동차 엔진 마운트용 액체 조성물은 온도에 관계없이 항상 일정한 엔진 마운트의 역할을 할 수 있고, 주액실과 부액실 사이에 있는 금속부분의 방청효과와 액에 노출된 고무 부분를 충분히 보호시켜 줌으로써 엔진의 진동을 능동적으로 흡수할 수 있어 액체봉입형 엔진 마운트에 사용될 수 있다.The liquid composition for automobile engine mount according to the present invention can always serve as a constant engine mount irrespective of the temperature, and by sufficiently protecting the rubber part exposed to the liquid and the rust prevention effect of the metal part between the pouring chamber and the auxiliary liquid chamber. Can actively absorb vibrations and can be used in liquid-sealed engine mounts.

이하, 본 발명을 실시예에 의거하여 상세히 설명하겠는바 본 발명이 다음 실시예에 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to the following Examples.

실시예 1 ∼ 3Examples 1-3

다음 표 1과 같은 조성성분과 함량으로 본 발명에 따른 자동차 엔진 마운트용 액체 조성물을 제조하였다.Next, the liquid composition for automobile engine mount according to the present invention was prepared in the following compositions and contents.

구 분조성(중량%)Partition composition (% by weight) 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 에틸렌글리콜Ethylene glycol 6969 7070 7171 프로필렌글리콜Propylene glycol 2727 2626 2424 트리에탄올아민Triethanolamine 0.70.7 1.01.0 1.21.2 소디움 벤조에이트Sodium benzoate 0.30.3 0.50.5 0.60.6 벤조트리아졸Benzotriazole 0.40.4 0.50.5 0.30.3 주)나머지는 첨가제 혼합을 위한 미량의 이온교환수 및 색소, 소포제, 완충용액(수산화나트륨용액)으로 이루어짐.Note) The remainder consists of trace amount of ion-exchanged water, pigment, antifoaming agent and buffer solution (sodium hydroxide solution) for additive mixing.

비교예Comparative example

종전에 사용한 마운트액으로 물과 에틸렌글리콜을 1 : 1로 혼합(물50wt%, 에틸렌글리콜 50v/v%)하여 제조하였다.It was prepared by mixing water and ethylene glycol in a 1: 1 ratio (50 wt% of water, 50v / v% of ethylene glycol) with a mount solution previously used.

시험예Test Example

본 발명의 마운팅액의 성능을 시험하기 위하여 다음과 같은 시험을 실시하였다.In order to test the performance of the mounting liquid of the present invention, the following test was carried out.

끓은 점은 KSM 2141에 준하여 시험하였으며, 점도는 -40 ℃ 및 100 ℃에서 KSM 2014법으로 측정하였다. 또한, 엔진 마운트액에 노출되는 고무 부분을 70 ℃에서 1,000시간동안 침지시키고, 오리피스의 방청성을 알아보기 위해 98 ℃에서 336시간동안 침지시켰다. 이와 같은 시험 결과는 다음 표 2에 나타내었다.Boiling point was tested in accordance with KSM 2141, viscosity was measured by KSM 2014 method at -40 ℃ and 100 ℃. In addition, the rubber part exposed to the engine mount liquid was immersed at 70 ° C. for 1,000 hours, and immersed at 98 ° C. for 336 hours to check the rust resistance of the orifice. The test results are shown in Table 2 below.

구 분division 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 비교예Comparative example 끓는점(℃)Boiling Point (℃) 185185 188188 186186 102부식102 Corrosion -40℃ 점도(cSt)-40 ℃ viscosity (cSt) 26262626 26452645 25402540 24202420 100℃ 점도(cSt)100 ° C viscosity (cSt) 2.12.1 2.32.3 2.32.3 0.810.81 고무 침지Rubber immersion 이상없음clear 이상없음clear 이상없음clear 미세균열Microcracks 오리피스 방청성Orifice Antirust 이상없음clear 이상없음clear 이상없음clear 부식corrosion

이상에서 상술한 바와 같이, 본 발명에 따른 자동차 엔진 마운트용 액체 조성물은 온도에 관계없이 항상 일정한 엔진 마운트의 역할을 할 수 있고, 주액실과 부액실 사이에 있는 금속부분의 방청효과와 액에 노출된 고무 부분를 충분히 보호시켜 줌으로써 엔진 마운트 내 주액실과 부액실이 있고 엔진의 충격이 있을 경우 주액실의 액체가 주액실과 부액실 사이에 있는 오리피스의 밸브를 통하여 부액실로 이동하면서 충격을 흡수할 수 있다.As described above, the liquid composition for automobile engine mount according to the present invention can always serve as a constant engine mount irrespective of temperature, and is exposed to the rust prevention effect and the liquid of the metal part between the injection chamber and the injection chamber. By sufficiently protecting the rubber part, there is a liquid injection chamber and a liquid injection chamber in the engine mount, and in the event of an engine shock, the liquid in the liquid injection chamber can be absorbed while moving to the liquid injection chamber through the orifice valve between the liquid injection chamber and the liquid injection chamber.

Claims (2)

에틸렌글리콜 68 ∼ 72 중량%, 프로필렌글리콜 23 ∼ 27 중량%, 트리에탄올아민 0.2 ∼ 1.3 중량%, 소디움 벤조에이트 0.5 ∼ 3 중량%, 벤조트리아졸 0.3 ∼ 1.5 중량%, 수분 1.0 ∼ 2.5 중량%를 함유한 것을 특징으로 하는 자동차 엔진 마운트용 액체 조성물.Ethylene glycol 68-72 wt%, propylene glycol 23-27 wt%, triethanolamine 0.2-1.3 wt%, sodium benzoate 0.5-3 wt%, benzotriazole 0.3-1.5 wt%, moisture 1.0-2.5 wt% Liquid composition for mounting an automobile engine, characterized in that. 제 1 항에 있어서, 상기 트리에탄올아민, 소디움 벤조에이트 및 벤조트리아졸은 pH 7 ∼ 9 에서 배합시키는 것을 특징으로 하는 자동차 엔진 마운트용 액체 조성물.The liquid composition for automobile engine mounting according to claim 1, wherein the triethanolamine, sodium benzoate and benzotriazole are blended at a pH of 7-9.
KR10-2001-0039573A 2001-07-03 2001-07-03 Damping Fluid for Enging Mounting KR100410335B1 (en)

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Publication number Priority date Publication date Assignee Title
DE102013210910A1 (en) 2013-02-19 2014-08-21 Hyundai Motor Company Solution composition for a hydraulic engine mount

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JPS63493A (en) * 1986-06-19 1988-01-05 Johnson Kk Corrosion inhibitor for hydraulic test
KR890000621A (en) * 1987-06-16 1989-03-15 나까지마 미쯔루 Antifreeze Composition
JPH07157887A (en) * 1993-11-19 1995-06-20 Seiken Kagaku Kogyo Kk Anti-corrosive anti-freeze for aluminum engine
JPH07173651A (en) * 1993-12-21 1995-07-11 C C I Kk Liquid coolant composition
JPH0885782A (en) * 1994-09-16 1996-04-02 Nippon Chem Kogyo Kk Antifreeze composition
KR970062014A (en) * 1996-02-08 1997-09-12 김광순 Flame retardant water-glycol hydraulic oil composition

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JPS63493A (en) * 1986-06-19 1988-01-05 Johnson Kk Corrosion inhibitor for hydraulic test
KR890000621A (en) * 1987-06-16 1989-03-15 나까지마 미쯔루 Antifreeze Composition
JPH07157887A (en) * 1993-11-19 1995-06-20 Seiken Kagaku Kogyo Kk Anti-corrosive anti-freeze for aluminum engine
JPH07173651A (en) * 1993-12-21 1995-07-11 C C I Kk Liquid coolant composition
JPH0885782A (en) * 1994-09-16 1996-04-02 Nippon Chem Kogyo Kk Antifreeze composition
KR970062014A (en) * 1996-02-08 1997-09-12 김광순 Flame retardant water-glycol hydraulic oil composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013210910A1 (en) 2013-02-19 2014-08-21 Hyundai Motor Company Solution composition for a hydraulic engine mount

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