KR100855041B1 - Flame retardant polypropylene composition using cd tube - Google Patents

Flame retardant polypropylene composition using cd tube Download PDF

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KR100855041B1
KR100855041B1 KR1020080026501A KR20080026501A KR100855041B1 KR 100855041 B1 KR100855041 B1 KR 100855041B1 KR 1020080026501 A KR1020080026501 A KR 1020080026501A KR 20080026501 A KR20080026501 A KR 20080026501A KR 100855041 B1 KR100855041 B1 KR 100855041B1
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parts
weight
flame retardant
polypropylene
flame
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김재근
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(주)삼화기업
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/02—Halogenated hydrocarbons
    • C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A polypropylene composition for flame resistant flexible CD tubes is provided to realize excellent flame resistance despite the use of a polypropylene resin, to impart excellent workability and impact strength, and to prevent generation of harmful gases. A polypropylene composition for flame resistant flexible CD tubes comprises: (A) 100 parts by weight of polypropylene; and (B) 2-10 parts by weight of flame resistant master batch comprising 100 parts by weight of polypropylene or polyethylene, 10-80 parts by weight of BDDP(tetrabromobisphenol A bis(2,3-dibromopropyl) ether) as a flame retardant, 10-50 parts by weight of Sb2O3 as a flame retardant, 1-10 parts by weight of a UV stabilizer, and 1-10 parts by weight of a first and a second antioxidants.

Description

난연성 휨 전선관용 폴리프로필렌 조성물{FLAME RETARDANT POLYPROPYLENE COMPOSITION USING CD TUBE}Polypropylene composition for flame retardant flexible conduit {FLAME RETARDANT POLYPROPYLENE COMPOSITION USING CD TUBE}

본 발명은 난연성 휨(가요) 전선관(CD관)의 제작이 어려운 폴리프로필렌 수지를 사용하여도 우수한 난연성을 갖는 난연성 휨 전선관을 제작할 수 있는 난연성 휨 전선관용 폴리프로필렌 조성물에 관한 것이다.The present invention relates to a polypropylene composition for a flame retardant flexible conduit which can produce a flame retardant flexible conduit having excellent flame retardancy even when using a polypropylene resin that is difficult to produce a flame retardant flexible (flexible) conduit (CD tube).

또한, 본 발명은 소량의 난연제를 사용하더라도 우수한 난연성, 작업성 및 충격강도를 갖으며, 유독가스가 심하게 발생하는 것을 방지할 수 있는 난연성 휨 전선관용 폴리프로필렌 조성물에 관한 것이다.In addition, the present invention relates to a polypropylene composition for a flame retardant flexible conduit having excellent flame retardancy, workability and impact strength even when a small amount of flame retardant is used, and which can prevent toxic gases from being severely generated.

일반적으로 주름관은 CD관(주름관)의 주된 프라스틱 원료로는 고밀도 폴리에틸렌(HDPE)가 주를 이루고 약간의 PVC원료로도 난연성 휨 전선관을 생산하였다In general, corrugated pipes are mainly made of high density polyethylene (HDPE) as the main plastic material of CD pipes (corrugated pipes), and produced flame-retardant flexible conduit tubes even with a little PVC material.

그러나, HDPE는 휨 전선관을 제작하는 경우 여러가지 문제점들이 있어 현재에도 난연성 휨 전선관으로 완벽하지 않다. 즉, HDPE에 난연효과를 위해 난연제를 12 ~ 15%의 난연제를 사용하기 때문에 물성이 약해져 충격강도가 약하여 잘 깨어진 다. 또한, 휨 전선관의 연소시 유독가스가 분출되어 화재시 질식사 할 수 있다.However, HDPE has various problems when manufacturing a flexible conduit and is still not perfect as a flame retardant flexible conduit. In other words, since 12 to 15% of flame retardant is used for the flame retardant effect in HDPE, the physical property is weak and the impact strength is weak so that it is easily broken. In addition, toxic gas is emitted during combustion of the flexible conduit, which may cause asphyxiation in a fire.

그리고, HDPE에 다량의 난연제 투입으로 인한 생산성이 저하될 뿐만 아니라 다량의 중금속(Pb)이 함유되어 있는 문제가 있다. 또한 여름의 경우에는 간헐적으로 휨 전선관의 굴곡탄성률이 떨어지며(CD관이 무르다고 표현), 겨울철에는 충격에 의해 깨지는 문제가 있다. 또한 PVC의 경우 난연성은 뛰어나지만 한번 휘어진 후 복원성이 떨어져서 난연성을 갖는 휨 전선관으로는 사용하기 어려운 문제가 있다.In addition, there is a problem that a large amount of heavy metal (Pb) is contained as well as productivity is reduced due to the addition of a large amount of flame retardant to HDPE. In addition, in the summer, the flexural modulus of the flexural conduit intermittently falls (expressed as the CD tube is soft), and in winter, there is a problem of being broken by the impact. In addition, in the case of PVC is excellent in flame retardancy, but there is a problem that it is difficult to use as a flexible conduit having a flame retardancy because it is inferior in stability after bending.

본 발명의 목적은 난연성 휨 전선관의 제작이 어려운 폴리프로필렌 수지를 사용하여도 우수한 난연성을 갖는 난연성 휨 전선관을 제작할 수 있는 난연성 휨 전선관용 폴리프로필렌 조성물을 제공하는데 있다.It is an object of the present invention to provide a polypropylene composition for a flame retardant flexible conduit which can produce a flame retardant flexible conduit having excellent flame retardancy even when using a polypropylene resin that is difficult to produce a flame retardant flexible conduit.

본 발명의 다른 목적은 소량의 난연제를 사용하더라도 우수한 난연성, 작업성 및 충격강도를 갖으며, 유독가스가 심하게 발생하는 것을 방지할 수 있는 난연성 휨 전선관용 폴리프로필렌 조성물을 제공하는데 있다.Another object of the present invention is to provide a polypropylene composition for a flame retardant flexible conduit which has excellent flame retardancy, workability and impact strength even when a small amount of flame retardant is used, and which can prevent generation of toxic gas.

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본 발명의 난연성 휨 전선관용 폴리프로필렌 조성물은 (A) 폴리프로필렌 100중량부에 (B) 폴리프로필렌 또는 폴리에틸렌 100중량부에 BDDP난연제 10-80중량부, Sb2O3난연제 10-50중량부, 자외선 안정제 1-10중량부, 1,제2 산화방지제 1-10중량부를 혼합하여 제조된 난연 마스터배치 2 ~ 10중량부를 혼합한 것을 특징으로 한다.The polypropylene composition for flame-retardant flexible conduit of the present invention comprises (A) 100 parts by weight of polypropylene (B) 10-80 parts by weight of BDDP flame retardant, 10-50 parts by weight of Sb 2 O 3 flame retardant, 100 parts by weight of polypropylene or polyethylene, 1-10 parts by weight of the UV stabilizer, 1-10 parts by weight of the first and second antioxidants, characterized in that 2 to 10 parts by weight of a flame retardant masterbatch prepared by mixing.

본 발명에 의해 제조된 폴리프로필렌 조성물은 종래에 난연성 휨 전선관의 제작이 어려운 폴리프로필렌 수지로도 우수한 난연성을 갖는 난연성 휨 전선관을 제작할 수 있다.The polypropylene composition prepared according to the present invention can produce a flame retardant flexible conduit having excellent flame retardancy even with a polypropylene resin, which is conventionally difficult to produce a flame retardant flexible conduit.

또한, 소량의 난연제를 사용하더라도 우수한 난연효과를 얻을 수 있으며, 유독가스가 심하게 발생하는 것을 방지할 수 있다.In addition, even if a small amount of flame retardant is used to obtain an excellent flame retardant effect, it is possible to prevent the generation of toxic gases severely.

또한, 휨 전선관 제작시 기존의 고밀도 폴리에틸렌(HDPE) 휨(가요) 전선관을 생산하는 경우 압출기에서 3~4일이면 난연제가 내부에 흡착하여 뚜께조정이 어렵고 DIES를 분해하여 청소해주어야 하지만 PP 휨 전선관(CD관) 생산에는 DIES 흡착문제가 없어 DIES를 열고 청소 할 필요가 없다.In addition, in the case of producing a flexible conduit, in the case of producing a high-density polyethylene (HDPE) flexible (flexible) conduit, the flame retardant is adsorbed inside the extruder in 3-4 days, making it difficult to adjust the thickness and disassembling and cleaning the DIES. CD pipe) There is no problem of DIES adsorption in production, so there is no need to open and clean DIES.

또한, 값이 싼 폴리프로필렌 수지를 주원료로 사용하기 때문에 종래 폴리에티렌, PVC 등으로 제작되는 휨(가요) 전선관에 비하여 제조비용이 매우 저렴한 장점이 있다.In addition, since the inexpensive polypropylene resin is used as a main raw material, there is an advantage that the manufacturing cost is very low compared to the warp (flexible) conduits made of conventional polystyrene, PVC, and the like.

이하, 본 발명의 난연성 휨 전선관용 폴리프로필렌 조성물에 대하여 보다 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the polypropylene composition for flame-retardant bending conduits of this invention is demonstrated in detail.

본 발명의 일실시예에 따른 난연성 휨 전선관용 폴리프로필렌 조성물은, 용 융지수(D1238) 0.5g/10min 이하인 폴리프로필렌 블록공중합체 100중량부에 대하여 BDDP 난연제 0.5~7 중량부, 삼산화안티몬(Sb2O3) 0.1~5 중량부, 분산제 0.01~3중량부, 제1 산화방지제 0.02~6중량부, 제2 산화방지제 0.01~6중량부, 자외선 안정제 0.1~2중량부를 혼합한 것을 특징으로 한다.The polypropylene composition for flame retardant flexible conduit according to the embodiment of the present invention is 0.5 to 7 parts by weight of BDDP flame retardant, antimony trioxide (Sb) based on 100 parts by weight of a polypropylene block copolymer having a melt melt index (D1238) of 0.5 g / 10 min or less. 2 O 3 ) 0.1 to 5 parts by weight, 0.01 to 3 parts by weight of dispersant, 0.02 to 6 parts by weight of the first antioxidant, 0.01 to 6 parts by weight of the second antioxidant, 0.1 to 2 parts by weight of UV stabilizer .

폴리프로필렌 중합체는 용융지수(MFR) ASTM D-1238가 0.1~2g/10min의 폴리프로필렌수지가 사용되고, 바람직하기는 용융지수가 0.1~1g/10min을 갖는 공중합체가 사용된다.The polypropylene polymer is a polypropylene resin having a melt index (MFR) ASTM D-1238 of 0.1 to 2 g / 10 min, and preferably a copolymer having a melt index of 0.1 to 1 g / 10 min.

난연제는 BDDP[Terabromobisphenol A bis(2,3-dibromopropyl ether]이며, 폴리프로필렌에 100중량부에 대여 0.5 내지 7중량부로 사용된다. The flame retardant is BDDP [Terabromobisphenol A bis (2,3-dibromopropyl ether]], and is used in polypropylene in an amount of 0.5 to 7 parts by weight in 100 parts by weight.

그리고, 삼산화안티몬(Antimony oxide : Sb2O3)도 난연제로 사용되며, 폴리프로필렌 100중량부에 대하여 0.1 내지 2 중량부로 사용된다. Also, antimony trioxide (Sb 2 O 3 ) is also used as a flame retardant, 0.1 to 2 parts by weight based on 100 parts by weight of polypropylene.

제1 산화방지제는 폐닐계 산화방지제[C73H108O12; Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydr, Fenozan 32)](제품명 ANOX 20)를 사용하며 폴리프로필렌에 100중량부에 대하여 0.1 내지 2중량부로 사용되는 것이 바람직하다. The first antioxidant is a waste nil antioxidant [C 73 H 108 O 12 ; Pentaerythritol tetrakis (3,5-di-tert-butyl-4-hydr, Fenozan 32)] (product name ANOX 20) is preferably used at 0.1 to 2 parts by weight based on 100 parts by weight of polypropylene.

제2 산화방지제는 인산계 산화방지제[C42H63O3P :Tris (2,4-di-t-butylphenyl) phosphite](제품명 ALKANOX 240)을 사용하며 폴리프로필렌 100중량부에 대하여 0.1~2중량부로 사용되는 것이 바람직하다.The second antioxidant is a phosphoric acid-based antioxidant [C 42 H 63 O 3 P: Tris (2,4-di-t-butylphenyl) phosphite] (trade name ALKANOX 240) 0.1 to 2 with respect to 100 parts by weight of polypropylene It is preferably used in parts by weight.

자외선 안정제는 HALS(Hindered Amine Light Stabilizer)계 화합물을 사용하며 폴리프로피렌 100중량부에 대하여 0.2 내지 3중량부로 사용되는 것이 바람직하 다. 이러한 HALS계 화합물로는 구체적으로 하이드록시부틸 메틸페닐클로로벤조트리아졸 등을 들 수 있다. 이러한 자외선 안정제는 이동시 또는 야적시에 빛에 노출되어도 탈색, 산화 등을 방지할 수 있다.UV stabilizer uses a HALS (Hindered Amine Light Stabilizer) compound is preferably used in 0.2 to 3 parts by weight based on 100 parts by weight of polypropylene. Specific examples of such HALS compounds include hydroxybutyl methylphenylchlorobenzotriazole and the like. Such UV stabilizers can prevent discoloration, oxidation, and the like even when exposed to light during migration or fielding.

한편, 난연성 휨 전선관용 폴리프로필렌 조성물의 충격보강을 위하여 충격보강제를 더 첨가할 수 있다. 이때, 충격보강제는 메타로센 촉매가 포함된 폴리프로필렌(PP) 및 폴리에틸렌(PE)를 사용하며 EPDM, EVA 및 기타 충격보강용 RUBBER를 사용할 수 있으며 폴리프로필렌에 대하여 0.5~10중량부로 사용되는 것이 바람직하다. 충격보강제는 잘 깨어지는 겨울에 다량 첨가하거나 또는 깨어지는 상태에 따라 첨가하지 않을 수도 있다.On the other hand, the impact modifier may be further added to the impact reinforcement of the polypropylene composition for flame retardant flexible conduit. In this case, the impact modifier uses a polypropylene (PP) and polyethylene (PE) containing a metalocene catalyst, EPDM, EVA and other impact reinforcement may be used and 0.5 to 10 parts by weight relative to the polypropylene desirable. Impact modifiers may be added in large amounts in the winter when broken, or may not be added depending on the condition.

이러한, BDDP 난연제, 삼산화안티몬(Sb2O3), 분산제, 제1 산화방지제 0.02~6중량부, 제2 산화방지제, 및 자외선 안정제가 혼합량 이하로 첨가되면 각각의 효과가 낮아지며, 혼합량 이상으로 첨가되면 비용이 증가된다.When the BDDP flame retardant, antimony trioxide (Sb 2 O 3 ), dispersant, 0.02 to 6 parts by weight of the first antioxidant, the second antioxidant, and the UV stabilizer are added in a mixed amount or less, the respective effects are lowered and added in a mixed amount or more. The cost increases.

한편, 본 발명의 다른 실시예에 따른 난연성 휨 전선관용 폴리프로필렌 조성물은 폴리프로필렌 100중량부에 난연 마스터배치 2~10중량부를 사용하여 제조할 수 있다. 이때, 난연 마스터배치의 조성물은 폴리프로필렌 또는 폴리에틸렌 100중량부에 BDDP난연제 10~80중량부, Sb2O3난연제 10~50중량부, 자외선 안정제 1~10중량부, 제1,2 산화방지제 1~10중량부를 혼합하여 제조된다.On the other hand, the polypropylene composition for flame retardant flexible conduit according to another embodiment of the present invention can be prepared using 2 to 10 parts by weight of flame retardant masterbatch to 100 parts by weight of polypropylene. At this time, the composition of the flame retardant masterbatch is 10 to 80 parts by weight of BDDP flame retardant, 10 to 50 parts by weight of Sb 2 O 3 flame retardant, 1 to 10 parts by weight of UV stabilizer, 1,2 antioxidant 1 to 100 parts by weight of polypropylene or polyethylene It is prepared by mixing ~ 10 parts by weight.

이하, 본 발명의 이해를 돕기 위하여 바람직한 실시예와 비교예를 제시하나, 하기 실시예는 본 발명을 예시하는 것일 뿐 본 발명의 범위가 하기 실시예에 한정되는 것은 아니다.Hereinafter, preferred examples and comparative examples are provided to aid in understanding the present invention, but the following examples are merely to illustrate the present invention, and the scope of the present invention is not limited to the following examples.

<실시예 1><Example 1>

폴리프로필렌(Y-120 MFR : 1) 100kg에 BDDP 3kg, Sb2O3 1kg, 폐닐계 산화방지제로서 ANOX20(ASIA STABILIZERS CO., LTD의 제품) 0.1kg, 인산계 산화방지제로서 ALKANOX240(ASIA STABILIZERS CO., LTD의 제품) 0.3kg, 충격보강제로 TPR(메타로센+PP) 7kg을 배합기(SUPER MIXER)에서 혼합하여 교반한 후 통상의 압출기를 사용하여 용융 압출시켜 펠렛(PELLET)으로 제조하고, 이를 압출하여 휨 전선관(CD관)을 제작하였다.100 kg of polypropylene (Y-120 MFR: 1), 3 kg of BDDP, 1 kg of Sb 2 O 3 , 0.1 kg of ANOX20 (manufactured by ASIA STABILIZERS CO., LTD) as waste-neil antioxidant, ALKANOX240 (ASIA STABILIZERS CO) , LTD) 0.3kg, 7kg TPR (metarosene + PP) as an impact modifier in a mixer (SUPER MIXER) and stirred and melt-extruded using a conventional extruder to produce pellet (PELLET), This was extruded to produce a flexural conduit (CD tube).

비교예로서 일반의 고밀도 폴리에틸렌(HDPE)을 주원료 하는 휨 전선관(CD관)을 제작하여 충격강도, 난연성, 굴곡강도 및 작업성을 비교하여 표1에 나타내었다.As a comparative example, a flexible conduit (CD tube) made of general high-density polyethylene (HDPE) was fabricated, and the impact strength, flame retardancy, flexural strength, and workability were compared.

<실시예2>Example 2

폴리프로필렌, BDDP, Sb2O3, 산화방지제는 실시예 1과 같은 량을 혼합하고, 충격보강제인 TPR(메타로센+PP)는 14kg 혼합하였으며, 실시예 1과 동일한 방법으로 휨 전선관을 제작하였다. 제작된 휨 전선관의 충격강도, 난연성, 굴곡강도및 작업성을 측정하여 표 1에 함께 나타내었다.Polypropylene, BDDP, Sb 2 O 3 , antioxidants were mixed in the same amount as in Example 1, TPR (metarosene + PP), an impact modifier, was mixed 14 kg, and a flexible conduit was manufactured in the same manner as in Example 1. It was. The impact strength, flame retardancy, flexural strength and workability of the manufactured flexural conduits were measured and shown in Table 1.

<실시예3>Example 3

폴리프로필렌, BDDP, Sb2O3, 산화방지제는 실시예 1과 같은 량을 혼합하고, 충격보강제인 TPR(메타로센+PP)는 24kg 혼합하였으며, 실시예 1과 동일한 방법으로 휨 전선관을 제작하였다. 제작된 휨 전선관의 충격강도, 난연성, 굴곡강도 및 작업성을 측정하여 표 1에 함께 나타내었다.Polypropylene, BDDP, Sb2O3, antioxidants were mixed in the same amount as in Example 1, TPR (metarosene + PP) as an impact modifier was mixed 24kg, and a flexible conduit was prepared in the same manner as in Example 1. The impact strength, flame retardancy, flexural strength and workability of the manufactured flexural conduits were measured and shown in Table 1.

<실시예 4><Example 4>

폴리프로필렌(B-310 MFR :0.5) 100kg에 BDDP 2.1kg, Sb2O3 0.7kg, 자외선 안정제(U.V 944) 0.2kg, 폐닐계 산화방지제 ANOX20(ASIA STABILIZERS CO.,LTD 제품) 0.1kg, 인산계 산화방지제 ALKANOX240(ASIA STABILIZERS CO.,LTD) 0.3kg, 분산제(ZN-ST) 0.2kg을 배합기(SUPER MIXER)에서 혼합하여 교반한 후 통상의 압출기를 사용하여 용융 압출시켜 펠렛(PELLET)으로 제조하고, 이를 압출하여 휨 전선관(CD관)을 제작하였다. 제작된 휨 전선관의 충격강도, 난연성, 굴곡강도 및 작업성을 측정하여 표 1에 함께 나타내었다.100kg of polypropylene (B-310 MFR: 0.5), 2.1kg of BDDP, 0.7kg of Sb 2 O 3 , 0.2kg of UV stabilizer (UV 944), 0.1kg of waste-neil antioxidant ANOX20 (product of ASIA STABILIZERS CO., LTD), phosphoric acid 0.3 kg of the antioxidant ALKANOX 240 (ASIA STABILIZERS CO., LTD) and 0.2 kg of the dispersant (ZN-ST) are mixed and stirred in a SUPER MIXER and melt-extruded using a conventional extruder to produce pellets. Then, this was extruded to produce a flexural conduit (CD tube). The impact strength, flame retardancy, flexural strength and workability of the manufactured flexural conduits were measured and shown in Table 1.

<실시예5>Example 5

폴리에틸렌 100kg에 BDDP 60kg, Sb2O3 30kg, 자외선 안정제(U.V 944) 4kg, 폐닐계 산화방지제 ANOX20(ASIA STABILIZERS CO.,LTD 제품) 2kg, 인산계 산화방지제 ALKANOX240(ASIA STABILIZERS CO.,LTD) 4kg, 분산제(Zn-St) 2kg을 배합기에 배합하여 교반한 후 통상의 압출기를 사용하여 용융 압출하여 PELLET의 난연 마스터 배치를 생성하였다.100kg of polyethylene, BDDP 60kg, Sb 2 O 3 30kg, UV stabilizer (UV 944) 4kg, Waste Nil antioxidant ANOX20 (product of ASIA STABILIZERS CO., LTD) , 2 kg of a dispersant (Zn-St) was added to the blender and stirred, followed by melt extrusion using a conventional extruder to produce a flame retardant masterbatch of PELLET.

폴리프로필렌(MFR 0.5) 100kg에 난연 마스터배치 7kg을 혼합하고, 이를 압출하여 휨 전선관(CD관)을 제작하였다. 제작된 휨 전선관의 충격강도, 난연성, 굴곡강도 및 작업성을 측정하여 표 1에 함께 나타내었다.A flame retardant masterbatch 7 kg was mixed with 100 kg of polypropylene (MFR 0.5) and extruded to produce a flexural conduit (CD tube). The impact strength, flame retardancy, flexural strength and workability of the manufactured flexural conduits were measured and shown in Table 1.

<비교예1>Comparative Example 1

폴리에틸렌 100kg에 데카브롬 181.5kg, Sb2O3 77.8kg, ZN-ST 7.4kg, U.V 1.9kg, ANOX20 1.9kg을 배합기에서 배합하여 교반한후 통상의 압출기를 사용하여 용융 압출하여 PELLET 형상의 폴리에틸렌 마스터배치를 생성하였다.100kg polyethylene, 181.5kg decabrom, 77.8kg Sb 2 O 3, 7.4kg ZN-ST, 1.9kg UV 1.9kg, 1.9kg ANOX20, blended and stirred in a blender and melt-extruded using a conventional extruder The batch was created.

HDPE 100kg에 폴리에틸렌 마스터배치 25kg을 혼합하고 압출하여 휨 전선관(CD관)을 제작하였다. 제작된 휨 전선관의 충격강도, 난연성, 굴곡강도 및 작업성을 측정하여 표 1에 함께 나타내었다.A flexible conduit (CD tube) was made by mixing and extruding 25 kg of polyethylene masterbatch with 25 kg of HDPE. The impact strength, flame retardancy, flexural strength and workability of the manufactured flexural conduits were measured and shown in Table 1.

<물성특성><Property Characteristics>

실시예1Example 1 실시예2Example 2 실시예3Example 3 실시예4Example 4 실시예5Example 5 비교예 1Comparative Example 1 난연성(UL94Vo)Flame retardant (UL94Vo) V2V2 V2V2 V2V2 V2V2 V2V2 불에탄다Get burned 충격 강도Impact strength 아주약함Very weak 약함weakness 양호Good 양호Good 양호Good 약함weakness 작업성Workability 압출량이 떨어짐Extruded amount falls 압출량이 떨어짐Extruded amount falls 압출량이 떨어짐Extruded amount falls 양호Good 양호Good 압출기 DIE에 난연제가 쌓인다(3-4일마다 DIE청소)Flame retardant builds up in extruder DIE (DIE cleaning every 3-4 days) 가 격 (CD관 M당 가격)Price (price per M of CD) 106원/M106 won / M 109원/M109 won / M 127원/M127 won / m 104원/M104 won / M 100원/M100 won / M 127원/M127 won / m 유독 가스 (불에 탈때)Toxic gas (when burning) 소량발생Small amount occurrence 소량발생Small amount occurrence 소량발생Small amount occurrence 소량발생Small amount occurrence 소량발생Small amount occurrence 다량 발생Large quantities 비 중importance 0.920.92 0.920.92 0.910.91 0.920.92 0.920.92 1.111.11 난연제 함량(%)Flame retardant content (%) 3.60%3.60% 3.40%3.40% 3.10%3.10% 2.70%2.70% 2.60%2.60% 14.00%14.00%

표 1에 나타난 바와 같이, 실시예 1 내지 실시예 3의 휨 전선관(CD관)은 난연성은 우수하지만 실시예1의 경우에는 충격강도가 매우 약하고, 실시예2는 다소 약한 것을 알 수 있다. 또한 실시예3은 난연 및 충격강도는 양호하나 압출량이 떨어지고 원료원가가 높아 개발이후 상용화에 문제가 있다.As shown in Table 1, the flexible conduit (CD tube) of Examples 1 to 3 is excellent in flame retardancy, but in the case of Example 1, the impact strength is very weak, and Example 2 is somewhat weak. In addition, Example 3 has good flame retardancy and impact strength, but has a problem in commercialization after development due to a decrease in extrusion amount and high raw material cost.

한편, 실시예4는 실시예 1~ 3의 경우보다 적은 량의 난연제를 사용하더라도 우수한 난연성을 가지므로 난연제의 함량을 더 줄일 수 있으며, 양호한 작업성을 갖는 것을 알 수 있다.On the other hand, Example 4 has excellent flame retardancy even if the use of a smaller amount of flame retardant than in the case of Examples 1 to 3 can further reduce the content of the flame retardant, it can be seen that has a good workability.

실시예5는 난연 마스터배치를 제작한 후에 폴리프로필렌을 사용하여도 실시예4와 같이 우수한 난연성 및 양호한 작업성을 갖는 것을 알 수 있다.In Example 5, even after using the polypropylene after fabricating the flame retardant masterbatch, it can be seen that it has excellent flame retardancy and good workability as in Example 4.

그리고, 비교예1은 다량의 난연제가 들어감에도 난연성이 떨어지고 과량의 난연제 투입에 따른 충격강도가 떨어짐을 알 수 있다. 즉, HDPE을 이용하여 난연성을 갖는 휨 전선관을 원하는 난연등급으로 난연화 하기 위해서는 비교예1과 같이 다량의 난연제를 투입하여도 난연효과가 원하는 UL등급에 적합하지 않고 충격강도도 일반에 비해 현저히 떨어진다. 따라서, 현재에도 휨 전선관의 난연문제 및 깨짐때문에 공사 현장에서 많은 애로점이 있었다.And, Comparative Example 1 can be seen that even when a large amount of flame retardant enters the flame retardancy and the impact strength due to the excessive amount of flame retardant is dropped. In other words, in order to flame-retardant flexible conduit with the desired flame retardant grade using HDPE, even if a large amount of flame retardant is added as in Comparative Example 1, the flame retardant effect is not suitable for the desired UL grade and the impact strength is significantly lower than that of the general flame retardant. . Therefore, there are still many difficulties in the construction site due to the flame retardant problem and cracking of the flexible conduit.

반면에 본 발명의 휨 전선관은 폴리프로필렌이 갖고 있는 충격강도가 약하고 내후성이 약한 문제를 해결하여 난연성 휨 전선관을 제작할 수 있다.On the other hand, the flexible conduit of the present invention can produce a flame-retardant flexible conduit by solving the problem of weak impact strength and weak weatherability of polypropylene.

Claims (10)

삭제delete 삭제delete 삭제delete 삭제delete 삭제delete (A) 폴리프로필렌 100중량부에 (B) 폴리프로필렌 또는 폴리에틸렌 100중량부에 BDDP 난연제 10-80중량부, Sb2O3 난연제 10-50중량부, 자외선 안정제 1-10중량부, 제1,2 산화방지제 1-10중량부를 혼합하여 제조된 난연 마스터배치 2 ~ 10중량부를 혼합한 것을 특징으로 하는 난연성 휨 전선관용 폴리프로필렌 조성물.(A) 100 parts by weight of polypropylene (B) 10-80 parts by weight of BDDP flame retardant, 10-50 parts by weight of Sb 2 O 3 flame retardant, 1-10 parts by weight of UV stabilizer, 2 Flame retardant polypropylene composition for a flame-retardant flexible conduit characterized in that 2 to 10 parts by weight of a flame retardant masterbatch prepared by mixing 1 to 10 parts by weight of antioxidant. 제6항에 있어서, 충격보강제 2-10 중량부를 더 혼합한 것을 특징으로 하는 난연성 휨 전선관용 폴리프로필렌 조성물.The polypropylene composition according to claim 6, further comprising 2-10 parts by weight of an impact modifier. 제6항에 있어서, 상기 자외선 안정제는 HALS계 자외선 안정제인 것을 특징으로 하는 난연성 휨 전선관용 폴리프로필렌 조성물.The polypropylene composition according to claim 6, wherein the UV stabilizer is a HALS UV stabilizer. 제6항에 있어서, 상기 제1 산화방지제는 폐닐계 산화방지제인 것을 특징으로 하는 난연성 휨 전선관용 폴리프로필렌 조성물.7. The polypropylene composition according to claim 6, wherein the first antioxidant is a waste nil-based antioxidant. 제6항에 있어서, 제2 산화방지제는 인산계 산화방지제인 것을 특징으로 하는 난연성 휨 전선관용 폴리프로필렌 조성물.7. The polypropylene composition according to claim 6, wherein the second antioxidant is a phosphoric acid-based antioxidant.
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