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KR20030061174A - Inflammable material composition for optical fiber cable - Google Patents

Inflammable material composition for optical fiber cable Download PDF

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Publication number
KR20030061174A
KR20030061174A KR1020020001716A KR20020001716A KR20030061174A KR 20030061174 A KR20030061174 A KR 20030061174A KR 1020020001716 A KR1020020001716 A KR 1020020001716A KR 20020001716 A KR20020001716 A KR 20020001716A KR 20030061174 A KR20030061174 A KR 20030061174A
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South Korea
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material composition
flame retardant
weight
parts
optical fiber
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KR1020020001716A
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Korean (ko)
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임화준
김현석
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엘지전선 주식회사
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Priority to KR1020020001716A priority Critical patent/KR20030061174A/en
Publication of KR20030061174A publication Critical patent/KR20030061174A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame

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

Abstract

PURPOSE: Provided is a flame retardant material composition for optical cables, which shows excellent flame retardancy and physical property, and which minimizes the generated amount of fumes and toxic gases, and does not absorb any moisture. CONSTITUTION: The flame retardant material composition comprises 100 parts by weight of polypropylene and 1-50 parts by weight of aluminosilicate clay. The aluminosilicate clay has an average particle diameter of 1-100 nanometers. The composition minimizes the damage of human life and property when firing, and shows excellent physical property and thus protects an optical fiber from external shock. Also, the composition has little moisture absorption and retains a long-term physical property.

Description

광케이블용 난연재료 조성물{Inflammable material composition for optical fiber cable}Inflammable material composition for optical fiber cable

본 발명은 광섬유 케이블의 재료조성물에 관한 것으로서, 보다 상세하게는 광통신 케이블에 있어서 광섬유를 보호하기 위한 튜브 재료 또는 슬롯코어(slotted core) 광 케이블의 지지물 재료에 관한 것이다.The present invention relates to a material composition of an optical fiber cable, and more particularly to a support material of a tube material or a slotted core optical cable for protecting an optical fiber in an optical communication cable.

광통신 케이블은 화재 발생시 인명 및 재산 피해를 최소화 시키기 위해서 케이블의 연소에 의한 연기 발생과 독성 가스의 발생이 최소화 되어야 한다.Optical communication cables should minimize the generation of smoke and toxic gases due to the combustion of cables in order to minimize human and property damage in the event of fire.

종래의 건물 내에 설치되는 광통신 케이블 재료에 있어서 상기 튜브 재료나 지지물 재료로서는 폴리프로필렌을 주로 사용하였으며 난연성을 부여하기 위해서 할로겐 물질을 배합하였다. 이 경우 화재시에 연기 발생과 독성 가스의 발생을 초래하는 문제점이 있었다.In the optical communication cable material installed in a conventional building, polypropylene is mainly used as the tube material and the support material, and a halogen material is blended to impart flame retardancy. In this case, there was a problem of generating smoke and generation of toxic gases in fire.

상기와 같은 문제점을 개선하기 위해서 할로겐 물질의 사용을 배제시키면서 무기 난연제를 과량 사용하여 난연 특성을 향상시키고 연기 발생과 독성 가스 발생을 최소화시켰으나, 인장강도와 신장율 등 물성이 나빠져 광섬유를 외부충격으로 부터 보호하는 기능을 갖추지 못하였다.In order to improve the above problems, the use of an inorganic flame retardant was used to eliminate the use of halogen materials to improve the flame retardancy and to minimize the generation of smoke and toxic gases. It did not have a protective function.

이러한 점을 보완하기 위하여 무기 난연제 대신에 암모늄 폴리포스페이트를 첨가하여 난연 특성을 지니면서 연기 발생과 독성 가스 발생을 최소화 시키고 인장 강도와 신장율 저하를 최소화 시킬 수 있었다.In order to compensate for this, ammonium polyphosphate was added instead of the inorganic flame retardant to minimize smoke generation and toxic gas generation while minimizing the reduction of tensile strength and elongation.

그러나, 상기 암모늄 폴리포스페이트는 높은 수분흡수성으로 인하여 장기적으로는 수분흡수에 의하여 인장강도나 신장율 등 물성이 저하되고 흡수된 수분에 의해서 광섬유의 광손실에 영향을 주는 문제점이 발생하였다.However, the ammonium polyphosphate has a problem in that in the long term, due to high water absorption, physical properties such as tensile strength and elongation are deteriorated by water absorption, and the optical loss of the optical fiber is affected by the absorbed water.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창작된 것으로서, 본 발명의 목적은 난연성이 우수하고 연기발생과 독성가스의 발생을 최소화 하며 물성이 우수하고 수분의 흡수가 없는 광케이블용 난연재료 조성물을 제공하는 것이다.The present invention has been made to solve the above problems, the object of the present invention is to provide a flame retardant material composition for the optical cable excellent in flame retardancy, minimizing the generation of smoke and toxic gases, excellent in physical properties and no absorption of moisture. It is.

상기와 같은 본 발명의 목적은, 폴리프로필렌 100 중량부에 대하여 알루미노규산염 클레이(aluminosilicate clays) 1 ~ 50 중량부를 첨가하여 구성되는 것을 특징으로 하는 광케이블용 난연재료 조성물에 의하여 달성된다. 본 발명에서는 폴리프로필렌을 나노복합재(nanocomposite)의 구조로 제조함으로써 상기와 같은 목적을 달성하고자 한다.The object of the present invention as described above is achieved by a flame retardant material composition for an optical cable, characterized in that 1 to 50 parts by weight of aluminosilicate clays are added to 100 parts by weight of polypropylene. In the present invention, to achieve the above object by producing a polypropylene in the structure of a nanocomposite (nanocomposite).

본 발명의 그 밖의 목적, 특정한 장점 및 신규한 특징들은 이하의 상세한 설명과 바람직한 실시예로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments.

이하 본 발명에 따른 광케이블용 난연재료 조성물의 구성에 대하여 설명하기로 한다.Hereinafter, the configuration of the flame retardant material composition for an optical cable according to the present invention will be described.

상기 광케이블용 난연재료 조성물은 몬모릴로나이트 (montmorillonite)와 같은 알루미노규산염 클레이(aluminosilicate clays) 및 폴리프로필렌으로 구성되어 있다. 상기 광케이블용 난연재료 조성물은 상기 폴리프로필렌 100 중량부와 상기 알루미노규산염 클레이 1 ~ 50 중량부로 구성된다. 상기 알루미노규산염 클레이를 1 중량부 미만으로 사용하면 난연효과가 없으며, 50 중량부를 초과하여 사용하면 물성이 저하되며 제조원가 상승의 문제가 발생한다.The flame retardant material composition for optical cables is composed of aluminosilicate clays such as montmorillonite and polypropylene. The flame retardant material composition for the optical cable is composed of 100 parts by weight of the polypropylene and 1 to 50 parts by weight of the aluminosilicate clay. When the aluminosilicate clay is used in less than 1 part by weight, there is no flame retardant effect, and when used in excess of 50 parts by weight, physical properties are lowered and problems of manufacturing cost increase.

상기 알루미노규산염은 산화알루미늄, 실리카, 염기로 이루어지는 염을 총칭하는 것으로서, 그 조성식은 Al2O3ㆍmSiO2ㆍnM1 2OㆍxH2O(M1은 1가 양이온; 예를들면 Na, K)의 형식으로 나타내는 경우가 많으나, 실제로는 Al, Si, O가 2차원 또는 3차원의 망상 골격으로 이루어져 있고 그 사이에 M1이 들어간 형태이다.The aluminosilicate is a generic term for salts consisting of aluminum oxide, silica and base, the composition of which is Al 2 O 3 · mSiO 2 · nM 1 2 O.xH 2 O (M 1 is a monovalent cation; , K) in many cases, but in reality, Al, Si, and O are composed of a two-dimensional or three-dimensional network skeleton with M 1 in between.

상기 조성물은 나노복합재(nanocomposites)의 형태로서 내부의 중간중간에 규산염(silicates)층이 형성되어 있다. 상기 알루미노규산염 클레이의 평균입자경은 1 ~ 100 nm이다.The composition is in the form of nanocomposites in which a layer of silicates is formed in the middle. The average particle diameter of the aluminosilicate clay is 1 to 100 nm.

상기 광케이블용 난연재료 조성물의 내부 중간중간에는 규산염층이 형성되어 있는 바, 상기 규산염은 폴리머 사이에 층을 잘 형성하는 특징을 지니고 있다. 이렇게 형성된 폴리머와 규산염층은 화재 발생시 드립성(dripping)을 막고 연소의 요소인 산소를 차단하여 난연성을 향상시킨다.The silicate layer is formed in the inner middle of the flame retardant material composition for the optical cable, and the silicate has a feature of forming a layer well between polymers. The polymer and silicate layer thus formed prevents dripping in case of fire and improves flame retardancy by blocking oxygen, which is a component of combustion.

무기 난연제의 경우 50% 정도를 사용하여야 난연특성이 나타나며 암모늄 폴리포스페이트의 경우 30% 정도를 사용하여야 난연특성이 나타나는데 비하여, 본 발명에 따른 나노 사이즈(nano size)의 규산염을 사용할 경우 10% 정도만 사용하여도 난연특성이 나타난다.In the case of inorganic flame retardants, the flame retardant properties are exhibited by using about 50%, and the flame retardant properties are exhibited by using about 30% by the case of ammonium polyphosphate, whereas when using nano size silicate according to the present invention, only about 10% is used. Even if the flame retardant properties appear.

이하 상기와 같은 구성을 갖는 본 발명에 따른 광케이블용 난연재료 조성물의 실시예에 대하여 설명하기로 한다.Hereinafter, an embodiment of a flame retardant material composition for an optical cable according to the present invention having the above configuration will be described.

표 1에서는 난연재료 조성물의 배합비율을 비교예와 실시예로 나누어 나타내었고, 표 2에서는 물성평가 결과를 나타내었다.Table 1 shows the compounding ratio of the flame retardant material composition divided into Comparative Examples and Examples, and Table 2 shows the results of the physical property evaluation.

난연재료 조성물의 배합비율Mixing ratio of flame retardant material composition 비교예1Comparative Example 1 비교예2Comparative Example 2 비교예3Comparative Example 3 실시예1Example 1 폴리프로필렌(polypropylene)Polypropylene 100100 100100 100100 100100 데카브로모디페닐 옥사이드(decabromodiphenyl oxide)Decabromodiphenyl oxide 2020 -- -- -- 암모늄 폴리포스페이트(ammonium polyphosphate)Ammonium polyphosphate -- 3030 -- -- 알루미노규산염 클레이(aluminosilicate clay)Aluminosilicate clay -- -- -- 1010 마그네슘 하이드록사이드(magnesium hydroxide)Magnesium hydroxide -- -- 100100 -- 삼산화안티몬(antimony(Ⅲ) oxide)Antimony trioxide (III) oxide 1010 -- -- --

물성평가 결과Property evaluation result 비교예1Comparative Example 1 비교예2Comparative Example 2 비교예3Comparative Example 3 실시예1Example 1 상온인장강도(kgf/mm2)Room temperature tensile strength (kgf / mm 2 ) 1.891.89 1.801.80 0.930.93 1.931.93 상온신장율(%)Room Temperature Elongation (%) 500500 450450 6565 480480 흡수성(%; 80℃,48hr)Absorbency (%; 80 ℃, 48hr) 0.50.5 55 1One 0.30.3 산소지수Oxygen index 2828 2626 2828 2828 드립성Dripness 없음none 없음none 없음none 없음none 유독성가스발생Toxic Gas Generation 발생Occur 발생없음No occurrence 발생없음No occurrence 발생없음No occurrence

표 1에 나타난 바와 같이, 난연재로서 비교예 1에서는 데카브로모디페닐 옥사이드 20 중량부와 삼산화안티몬 10 중량부를 첨가하였으며, 비교예 2에서는 암모늄 폴리포스페이트 30 중량부를 첨가하였으며, 비교예 3에서는 마그네슘 하이드록사이드 100 중량부를 첨가하였다. 이에 대해 실시예 1에서는 본 발명에 따른 난연재인 알루미노규산염 클레이 10 중량부를 적용하였다.As shown in Table 1, 20 parts by weight of decabromodiphenyl oxide and 10 parts by weight of antimony trioxide were added in Comparative Example 1 as a flame retardant, 30 parts by weight of ammonium polyphosphate was added in Comparative Example 2, and magnesium hydroxide in Comparative Example 3 100 parts by weight of side was added. In Example 1, 10 parts by weight of aluminosilicate clay, which is a flame retardant according to the present invention, was applied.

상온인장강도를 측정한 결과 실시예 1에서 가장 우수하였으며 80℃, 48hr의 조건에서 흡수성을 측정한 결과 실시예 1에서 가장 적은 수치를 나타내었다. 또한, 상온신장율을 측정한 결과 비교예 3에 비하여 실시예 1에서는 현저하게 우수한 수치를 나타내었으며, 비교예 1에서는 유독성 가스가 발생하였으나 실시예 1에서는 이러한 현상을 볼 수 없었다.As a result of measuring the tensile strength at room temperature, it was the best in Example 1, and the absorbance at 80 ° C and 48hr was the lowest in Example 1. In addition, as a result of measuring the room temperature elongation rate was shown to be significantly superior in Example 1 compared to Comparative Example 3, the toxic gas was generated in Comparative Example 1 but this phenomenon was not seen in Example 1.

상기 언급한 바와 같이 본 발명에 따른 광케이블용 난연재료 조성물에 의하면, 난연성이 우수하고 연기 발생과 독성 가스 발생을 최소화 하여 화재 발생시 인명 및 재산 피해를 최소화 시키면서 물성이 우수하여 광섬유를 외부충격으로 부터 보호하는 기능도 갖추고 있다.As mentioned above, according to the flame retardant material composition for the optical cable according to the present invention, the flame retardancy is excellent and minimizes the generation of smoke and toxic gas to minimize the damage to life and property in the event of a fire to protect the optical fiber from external shock I have the function to do it.

또한, 본 발명에 따른 광케이블용 난연재료 조성물은 수분흡수성이 적어 장기 물성이 유지되며 수분에 의한 광섬유의 광손실에 영향을 미치지 않는 특징이 있다.In addition, the flame retardant material composition for an optical cable according to the present invention has a feature that does not affect the optical loss of the optical fiber by moisture because the moisture absorption is less long-term physical properties are maintained.

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정이나 변형을 하는 것이 가능하다. 따라서 첨부된 특허청구범위는 본 발명의 요지에 속하는 이러한 수정이나 변형을 포함한다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims include such modifications and variations as fall within the spirit of the invention.

Claims (2)

폴리프로필렌 100 중량부에 대하여 알루미노규산염 클레이(aluminosilicate clays) 1 ~ 50 중량부를 첨가하여 구성되는 것을 특징으로 하는 광케이블용 난연재료 조성물.A flame retardant composition for an optical cable, comprising 1 to 50 parts by weight of aluminosilicate clays based on 100 parts by weight of polypropylene. 제 1 항에 있어서, 상기 알루미노규산염 클레이의 평균 입자경은 1 ~ 100 nm인 것을 특징으로 하는 광케이블용 난연재료 조성물.The method of claim 1, wherein the average particle diameter of the aluminosilicate clay is 1 to 100 Flame retardant material composition for an optical cable, characterized in that nm.
KR1020020001716A 2002-01-11 2002-01-11 Inflammable material composition for optical fiber cable KR20030061174A (en)

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JPH09183910A (en) * 1995-11-02 1997-07-15 Mitsubishi Chem Corp Crystalline thermoplastic resin composition
KR19980035377A (en) * 1996-11-13 1998-08-05 권문구 Thermosetting non-toxic flame retardant resin composition and crosslinked flame-retardant wire using the same
JPH1139954A (en) * 1997-07-23 1999-02-12 Idemitsu Petrochem Co Ltd Intermediary material for wire
US5910523A (en) * 1997-12-01 1999-06-08 Hudson; Steven David Polyolefin nanocomposites
JPH11228748A (en) * 1998-02-12 1999-08-24 Sekisui Chem Co Ltd Flame-retardant polyolefin resin composition
KR20010041881A (en) * 1998-03-16 2001-05-25 그래햄 이. 테일러 Polyolefin nanocomposites
WO2001036532A1 (en) * 1999-11-12 2001-05-25 Sekisui Chemical Co., Ltd. Polyolefin resin composition
WO2001066627A1 (en) * 2000-03-08 2001-09-13 Omnova Solutions Inc. Flame resistant polyolefin compositions containing organically modified clay
EP1160277A1 (en) * 2000-05-31 2001-12-05 Nexans A nanocomposite based on a bridged clay, and a cable comprising said composite

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09183910A (en) * 1995-11-02 1997-07-15 Mitsubishi Chem Corp Crystalline thermoplastic resin composition
KR19980035377A (en) * 1996-11-13 1998-08-05 권문구 Thermosetting non-toxic flame retardant resin composition and crosslinked flame-retardant wire using the same
JPH1139954A (en) * 1997-07-23 1999-02-12 Idemitsu Petrochem Co Ltd Intermediary material for wire
US5910523A (en) * 1997-12-01 1999-06-08 Hudson; Steven David Polyolefin nanocomposites
JPH11228748A (en) * 1998-02-12 1999-08-24 Sekisui Chem Co Ltd Flame-retardant polyolefin resin composition
KR20010041881A (en) * 1998-03-16 2001-05-25 그래햄 이. 테일러 Polyolefin nanocomposites
WO2001036532A1 (en) * 1999-11-12 2001-05-25 Sekisui Chemical Co., Ltd. Polyolefin resin composition
WO2001066627A1 (en) * 2000-03-08 2001-09-13 Omnova Solutions Inc. Flame resistant polyolefin compositions containing organically modified clay
EP1160277A1 (en) * 2000-05-31 2001-12-05 Nexans A nanocomposite based on a bridged clay, and a cable comprising said composite

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