KR100408624B1 - Poly vinyl chloride insulator composition for wire and cable - Google Patents

Poly vinyl chloride insulator composition for wire and cable Download PDF

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KR100408624B1
KR100408624B1 KR10-2000-0058905A KR20000058905A KR100408624B1 KR 100408624 B1 KR100408624 B1 KR 100408624B1 KR 20000058905 A KR20000058905 A KR 20000058905A KR 100408624 B1 KR100408624 B1 KR 100408624B1
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weight
parts
pvc
lead
resin
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KR20020028029A (en
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임화준
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엘지전선 주식회사
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/307Other macromolecular compounds
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282Preventing penetration of fluid, e.g. water or humidity, into conductor or cable

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

본 발명은 전선용 고분자 절연 재료에 관한 것으로서, 특히 납계 열안정제를 사용하지 않는 PVC재료에 있어서 수분에 의한 전기 절연성 저하 방지를 목적으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polymer insulating material for electric wires, and particularly, to prevent electrical insulation deterioration due to moisture in a PVC material which does not use a lead-based heat stabilizer.

본 발명은 비납계 열안정제와 함께 제습제 역할을 하는 산화 칼슘(CaO)을 일정량 혼합하여 사용하면 주변의 수분을 산화 칼슘(CaO)이 흡수하여 생성된 메탈 크로라이드(metal chloride)가 수분과 접촉하는 것을 사전에 방지하여 전기절연의 특성을 유지 시켜주는 역할을 지니게 하여 절연 재료로도 적용이 가능한 조성물을 특징으로 한다.According to the present invention, when a predetermined amount of calcium oxide (CaO), which serves as a dehumidifying agent, is used together with a non-lead-based heat stabilizer, the metal chloride produced by absorption of calcium oxide (CaO) from the surrounding water contacts with water. It is characterized by a composition that can be applied as an insulating material to prevent in advance to have a role to maintain the characteristics of electrical insulation.

상기 발명으로 인해 납계 열안정제를 사용하지 않는 폴리 비닐 크로라이드 (PVC)재료에 있어서 수분에 의한 전기 절연성 저하 방지를 할 수 있는 효과가 있다.Due to the above invention, the polyvinyl chromide (PVC) material which does not use a lead-based heat stabilizer has an effect of preventing electrical insulation deterioration due to moisture.

Description

전선용 PVC 절연재료{Poly vinyl chloride insulator composition for wire and cable}Polyvinyl chloride insulator composition for wire and cable

본 발명은 전선용 고분자 절연 재료에 관한 것으로서, 특히 납계 열안정제를 사용하지 않는 PVC재료에 있어서 수분에 의한 전기 절연성 저하 방지에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polymer insulating material for electric wires, and more particularly to preventing electrical insulation deterioration due to moisture in PVC materials which do not use lead-based thermal stabilizers.

환경에 대한 일반의 의식이 높아지면서 전선용 고분자에 대해서도 친 환경성 재료의 사용을 요구하는 추세가 강해지고 있으며 선진 전선 업계에서는 이를 경쟁력 확보의 기회로 삼기도 하는 실정이다. 전선용 고분자 재료로 가장 많이 사용되고 있는 폴리 비닐 크로라이드(PVC)의 친 환경화의 연구는 여러가지가 있지만 가장 시급한 과제는 열안정제로 사용되는 납계 열안정제를 사용하지 않은 것이다. 폐 전선을 매립 처리할 경우에는 납성분이 외부로 용출되며 용출된 납 성분은 주변 지하수등으로 스며들어 사람이 납으로 오염된 지하수를 마실 경우에는 중금속 중독이 될 가능성이 크게 된다.As the general awareness of the environment increases, there is a growing demand for the use of environmentally friendly materials for wire polymers, and in the advanced cable industry, this is an opportunity to secure competitiveness. There are many studies on the eco-friendliness of polyvinyl chloride (PVC), which is the most widely used polymer material for wires, but the most urgent task is not to use lead-based thermal stabilizers, which are used as thermal stabilizers. When the waste wires are landfilled, lead is eluted to the outside, and the eluted lead is permeated into the surrounding groundwater, and if people drink groundwater contaminated with lead, there is a high possibility of heavy metal poisoning.

열안정제의 역할은 아래와 같이 열에 의해서 쉽게 떨어지는 크로라이드(Chl oride)를 잡아주어서 더 이상의 분해반응이 진행되지 못하도록 막아주는 기능을 하게 된다.The role of the heat stabilizer is to hold the chromide (Chl oride) easily falling by the heat as shown below to prevent further decomposition reactions.

C CC C

H―C―S + MClH-C-S + MCl

C (열안정제) C (metal chloride)C (heat stabilizer) C (metal chloride)

그 결과로 형성된 메탈 크로라이드 (Metal chloride)는 종류에 따라 가용성 (Water solubility)이 틀려진다. PbCl2의 가용성(Water solubility)은 0.1g/100ml이고 비납계 안정제 중에서 가장 많이 적용되고 있는 금속 징크(Zinc)의 경우, 염화아연(ZnCl2)의 가용성(Water solubility)은 전기적 특성(electrical prop erties : Power loss, Power failure등)에 영향을 주므로 흡수가 많은 환경 에서의 적용에는 많은 문제가 있다. 지금까지의 비납계 안정제는 징크(Zinc), 칼슘(Calciu m), 알미늄(Aluminum)계를 채택하는데 이 경우들은 모두 상기와 같은 문제점을 지니고 있어 절연재료에는 적용하는 것이 제한적이다.The resulting metal chloride has different solubility in water depending on the type. Water solubility of PbCl 2 is 0.1g / 100ml and metal zinc, the most widely used lead-free stabilizer, shows that the water solubility of zinc chloride (ZnCl 2 ) is the electrical property. : It affects power loss, power failure, etc., so there are many problems in application in absorbent environment. Until now, lead-free stabilizers have adopted zinc, calcium, and aluminum systems, all of which have the problems described above.

이러한 납 성분을 함유한 열안정제를 전선용 폴리 비닐 크로라이드(PVC) 재료에서는 지속적으로 사용하여 왔는데 그 이유는 저가이면서 가공성등이 좋은 측면도 있지만 수분에 노출되어도 절연재료로서 중요한 전기절연 특성을 변화시키지 않고 유지 시킬 수 있다는 장점이 있기 때문이다. 상기 기술한 이유로 인해 지금까지 개발된 비납계 열안정제들은 절연용이 아닌 외장(Sheath)용으로는 적용되었고 절연용으로 적용 되는데에는 한계가 있었다.Thermal stabilizers containing lead have been consistently used in polyvinyl chloride (PVC) materials for wires because of their low cost and good processability, but they do not change important electrical insulation properties as an insulating material even when exposed to moisture. This is because there is an advantage that can be maintained without. For the reasons described above, the non-lead thermal stabilizers developed so far have been applied for sheath and not for insulation, and there is a limit to being applied for insulation.

본 발명은 상기 문제점을 해결하기 위하여 기존의 비납계 열안정제를 적용하면서 수분에 노출되어도 수분에 의한 절연 특성이 저하되지 않는 수지 조성물을 개발하고자 하는 목적을 가지고 있다.The present invention has an object to develop a resin composition that does not deteriorate the insulating properties by moisture even when exposed to moisture while applying the existing lead-free thermal stabilizer in order to solve the above problems.

본 발명은 상기 기술한 목적을 달성하기 위해 중합도가 1000에서 1700인 폴리 비닐 크로라이드(PVC)를 단독 또는 2종 이상을 혼용하여 사용하고 산화 방지제로는 힌더드 페놀(Hindered phenol)계를 수지 100 중량부에 대해서 0.1 내지 10 중량부, 저분자량 가소제로는 프타레이드계 가소제를 수지 100 중량부에 대해서 30에서 80중량부, 비납계 열안정제는 수지 100 중량부에 대해서 1에서 10중량부, CaO는 수지 100 중량부에 대해서 1에서 100중량부를 적용하는 것을 특징으로 하는 PVC 절연 전선 재료 조성물을 제공한다.In order to achieve the above object, the present invention uses polyvinyl chloride (PVC) having a polymerization degree of 1000 to 1700, alone or in combination of two or more thereof, and a hindered phenol-based resin 100 as an antioxidant. 0.1 to 10 parts by weight relative to parts by weight, a low molecular weight plasticizer is a phthalide plasticizer 30 to 80 parts by weight based on 100 parts by weight of resin, a lead-free thermal stabilizer 1 to 10 parts by weight relative to 100 parts by weight of resin, CaO Provides a PVC insulated wire material composition, characterized in that from 1 to 100 parts by weight based on 100 parts by weight of the resin.

본 발명은 전선용 고분자 절연 재료에 관한 것으로서, 특히 납계 열안정제를 사용하지 않는 PVC재료에 있어서 수분에 의한 전기 절연성 저하 방지에 관한 것이다BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to polymer insulating materials for electric wires, and more particularly to preventing electrical insulation deterioration due to moisture in PVC materials that do not use lead-based thermal stabilizers.

본 발명에서는 비납계 열안정제와 함께 제습제 역할을 하는 CaO를 일정량 혼합하여 사용하면 주변의 수분을 CaO가 흡수하여 생성된 메탈 크로 라이드(metal chloride)가 수분과 접촉한는 것을 사전에 방지하여 전기 절연 특성을 유지 시켜주는 역할을 지니게 하여 절연 재료로도 적용이 가능하도록 조성물을 고안 하였는 바,In the present invention, when a certain amount of CaO, which acts as a dehumidifying agent, is used together with the lead-free thermal stabilizer, the electrical insulation property is prevented in advance to prevent the metal chloride produced by absorbing the surrounding moisture from contacting with water. The composition was designed to be applied as an insulating material by having a role of maintaining the

이하에서는 본 발명의 구성을 더욱 상세하게 설명하고자 한다.Hereinafter will be described in more detail the configuration of the present invention.

본 발명에서 사용한 PVC수지는 중합도가 1000에서 1700인 것을 단독 또는 2종이상 혼용하여 사용하였다. 산화 방지제로는 힌더드 페놀(Hindered phenol)계를 수지 100중량부에 대해서 0.1 내지 10 중량부를 사용하였다. 전선용 절연 재료로 피복시키기 위해서는 PVC를 연질화 시켜야 하는데 그런 목적으로 저분자량 가소제(주로 프타레이트계)를 수지 100 중량부에 대해서 30에서 80중량부를 사용하였다.The PVC resin used in the present invention was used alone or in combination of two or more of those having a degree of polymerization of 1000 to 1700. As antioxidant, 0.1-10 weight part of hindered phenol type was used with respect to 100 weight part of resin. In order to coat with insulation material for electric wire, PVC has to be soft-nitrided. For this purpose, a low molecular weight plasticizer (mainly phthalate) was used in an amount of 30 to 80 parts by weight based on 100 parts by weight of the resin.

납계 열안정제로는 Ca/Mg/Zn계를 수지 100중량부에 대해서 1에서 10중량부를 사용하였으며 제습제 역할 목적으로 CaO는 수지 100중량부에 대해서 1에서 100 중량부를 적용하였다. 1중량부 이하는 흡습효과를 나타내지 못하며 100중량부 이상은 인장강도나 신장율과 같은 기계적 특성을 저하 시키는 무제를 발생시킨다.As lead-based heat stabilizer, Ca / Mg / Zn system was used in an amount of 1 to 10 parts by weight based on 100 parts by weight of the resin, and CaO was used in an amount of 1 to 100 parts by weight based on 100 parts by weight of the resin for the purpose of dehumidifying agent. Less than 1 part by weight does not exhibit a hygroscopic effect, and more than 100 parts by weight produces an agent that degrades mechanical properties such as tensile strength and elongation.

특히 20 중량부 이상 사용할 경우에는 흡수된 수분과 CaO가 반응하여 수산화 칼슘(Ca(OH)2)를 일부 생성 시키는데 생성된 Ca(OH)2는 화재시 절연재료의 난연성을 부여 할 수 있는 난연제로도 역할을 할 수 있다. 제습제 CaO는 대기중에 노출되면 수분과 급격히 반응하므로 실제 배합시에는 노출되기가 쉬워 효과가 감소하는 문제가 발생한다. 이러한 문제를 해결하기 위하여 CaO표면에 계면활성제로 코팅을 시키거나 저분자량 우레탄 또는 멜라민 등으로 캡슐화(encapsulation) 시키면 배합 공정중에 발생하는 흡습 문제를 최소화 시킬 수 있으므로 계면활성제로 표면 코팅된 재료 또는 encapsulation 시킨 재료의 적용이 선호적이다.In particular, when 20 parts by weight or more is used, the absorbed water reacts with CaO to form some calcium hydroxide (Ca (OH) 2 ), and Ca (OH) 2 is a flame retardant that can impart flame retardancy of an insulating material in a fire. Can also play a role. Dehumidifier CaO reacts rapidly with moisture when exposed to the air, so it is easy to be exposed during the actual blending, which causes a problem that the effect is reduced. In order to solve this problem, coating the surface of CaO with surfactant or encapsulation with low molecular weight urethane or melamine can minimize the moisture absorption problem during the compounding process. Application of the material is preferred.

이하에서는 본 발명의 비교예와 실시예를 통하여 본 발명의 효능에 대하여 기술하면 다음과 같다.Hereinafter will be described the efficacy of the present invention through the comparative examples and examples of the present invention.

[표][table]

비교예 1Comparative Example 1 실시예 1Example 1 실시예 2Example 2 PVC(중합도 1000)PVC (polymerization degree 1000) 100100 100100 100100 가소제 DIDPPlasticizer DIDP 5050 5050 5050 Irgano×1010*1Irgano × 1010 * 1 22 22 22 RUP 110 * 2RUP 110 * 2 66 66 66 CaOCaO -- 55 2525 상온 인장강도(kg/mm2)Room temperature tensile strength (kg / mm 2 ) 1.561.56 1.521.52 1.651.65 상온 신장율(%)Room Temperature Elongation (%) 270270 285285 229229 Aging후 (100℃/7일) 인장강도 잔율(%)Tensile strength residual rate (%) after Aging (100 ℃ / 7days) 9595 8989 8282 Aging후 (100℃/7일) 신장 잔율(%)Elongation (%) after Aging (100 ℃ / 7days) 7979 7373 6565 상온 체적저항(Ω-cm : ×1015)Room temperature volume resistance (Ω-cm: × 10 15 ) 2.52.5 2.12.1 1.21.2 침수후(20℃/7일) 체적저항(Ω-cm :×1015)After immersion (20 ℃ / 7days) Volume resistivity (Ω-cm: × 10 15 ) 1.11.1 8.28.2 7.17.1 산소지수(%) *3Oxygen index (%) * 3 33.533.5 3333 3636

*1 : Phenol계 1차 산화방지제(제조사 : 시바 스페셜티)* 1: Phenol primary antioxidant (manufacturer: Ciba Specialty)

*2 : Ca/Mg/Zn계 비납계 열안정제(제조사 : 일본 아사히 덴가)* 2: Ca / Mg / Zn type lead-free thermal stabilizer (manufacturer: Asahi Denga, Japan)

*3 : 난연성을 평가 하는 항목으로 시험방법(ATSM D2863)* 3: Test method for evaluating flame retardancy (ATSM D2863)

상기 발명으로 인해 비납계 열안정제와 함께 제습제 역할을 하는 CaO을 일정량 혼합하여 사용하여 주변의 수분을 산화칼슘(CaO)이 흡수하여 생성된 메탈 크로 라이드(metal chloride)가 수분과 접촉하는 것을 사전에 방지하여 전기 절연 특성을 유지 시켜주는 역할을 지니게 하여 절연 재료로도 적용이 가능하도록 할 수 있는 효과가 있다.Due to the above invention, a predetermined amount of CaO, which acts as a dehumidifying agent, is used together with a lead-free thermal stabilizer, so that the metal chloride produced by absorbing the surrounding moisture by CaO is in contact with the water in advance. It has the effect that it can be applied as an insulating material by having a role to maintain the electrical insulation properties by preventing.

Claims (3)

중합도가 1000에서 1700인 PVC를 단독 또는 2종 이상을 혼용하여 사용하고, 산화 방지제로는 힌더드 페놀(Hindered phenol)계를 상기 PVC의 수지 100중량부에 대해서 0.1 내지 10 중량부를 적용하고, 또한 저분자량 가소제로는 프타레이드계 가소제를 수지 100중량부에 대해서 30에서 80중량부를 적용하며, 비납계 열안정제는 수지 100 중량부에 대해서 1에서 10중량부를 적용하고, 산화칼슘(CaO)은 수지 100중량부에 대해서 1에서 100중량부를 적용하는 것을 특징으로 하는 폴리 비닐 크로라이드(PVC) 절연 전선 재료 조성물.PVC having a polymerization degree of 1000 to 1700 is used alone or in combination of two or more thereof, and as an antioxidant, a hindered phenol-based 0.1 to 10 parts by weight is applied to 100 parts by weight of the resin of PVC. As a low molecular weight plasticizer, a phthalade plasticizer is applied in an amount of 30 to 80 parts by weight based on 100 parts by weight of the resin, a lead-free thermal stabilizer is applied in an amount of 1 to 10 parts by weight based on 100 parts by weight of the resin, and calcium oxide (CaO) is a resin. A polyvinyl chloride (PVC) insulated wire material composition, characterized in that from 1 to 100 parts by weight is applied based on 100 parts by weight. 제 1항에 있어서 산화칼슘(CaO)은 표면에 계면활성제로 코팅된 재료 또는 우레탄 또는 메라민 수지로 캡슐화(Encapsulation)시킨 재료를 적용하는 것을 특징으로 하는 폴리 비닐 크로라이드(PVC) 절연 전선 재료 조성물.2. The polyvinyl chloride (PVC) insulated wire material composition according to claim 1, wherein calcium oxide (CaO) is applied to a surface coated with a surfactant or a material encapsulated with a urethane or a melamine resin. 삭제delete
KR10-2000-0058905A 2000-10-06 2000-10-06 Poly vinyl chloride insulator composition for wire and cable KR100408624B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920009846A (en) * 1990-11-02 1992-06-25 호이만, 쉬틀러 Cyclopeptide
WO1995004797A1 (en) * 1993-08-06 1995-02-16 Tetra International, Inc. Coke and corrosion retardation process and composition
JPH07330937A (en) * 1994-06-08 1995-12-19 Yazaki Corp Pvc foamed insulating resin composition
KR950032437A (en) * 1994-04-15 1995-12-20 베르너 발데크 Stabilized polyvinyl chloride
JP2000191873A (en) * 1998-12-28 2000-07-11 Servicios Condumex Sa De Cv Polyvinylchloride composition, preparation thereof and cable insulation method using it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920009846A (en) * 1990-11-02 1992-06-25 호이만, 쉬틀러 Cyclopeptide
WO1995004797A1 (en) * 1993-08-06 1995-02-16 Tetra International, Inc. Coke and corrosion retardation process and composition
KR950032437A (en) * 1994-04-15 1995-12-20 베르너 발데크 Stabilized polyvinyl chloride
JPH07330937A (en) * 1994-06-08 1995-12-19 Yazaki Corp Pvc foamed insulating resin composition
JP2000191873A (en) * 1998-12-28 2000-07-11 Servicios Condumex Sa De Cv Polyvinylchloride composition, preparation thereof and cable insulation method using it

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