KR101858874B1 - Polypropylene resin compositions for combine duct conduit and method of preparing the same - Google Patents
Polypropylene resin compositions for combine duct conduit and method of preparing the same Download PDFInfo
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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
- C08L23/04—Homopolymers or copolymers of ethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/10—Extrusion moulding
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- 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
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Abstract
Description
본 발명은 콤바인덕트 전선관용 폴리프로필렌 수지 조성물 및 그 제조방법에 관한 것으로, 더욱 상세하게는 폴리프로필렌, 올레아미드, 실리콘 분말 및 실리콘 오일이 조합되어 슬립성 및 내마모성이 우수한 콤바인덕트 전선관용 폴리프로필렌 수지 조성물 및 그 제조방법에 관한 것이다.The present invention relates to a polypropylene resin composition for a combine-duct wire tube and a method for producing the same. More particularly, the present invention relates to a polypropylene resin composition for a combine-duct wire tube which is excellent in slipperiness and abrasion resistance by combining polypropylene, oleamide, silicone powder, Compositions and methods of making the same.
일반적으로 콤바인덕트(combine duct, CD) 전선관은 건축이나 장비의 전선을 보호하기 위하여 사용되며, 롤 형상으로 형성되어 무게가 가볍기 때문에 작업현장에서 운반 및 취급이 용이하다. 또한, 스틸(steel)관에 비해 결로현상이 적어 영하의 온도에서도 사용할 수 있고, 온도변화에 대한 수축이 거의 없기 때문에 안심하고 사용할 수 있으며, 내약품성과 내후성 및 내식성이 우수하고 가요성이 뛰어나므로 벤다 또는 토치 램프 등 기타의 공구가 불필요하며 배관작업이 용이하다.Generally, a combine duct (CD) conduit is used to protect the wires of a building or equipment. Since it is formed in a roll shape and light in weight, it is easy to carry and handle at the work site. Also, because it has less condensation than steel pipe, it can be used at subzero temperatures. Since it has little shrinkage due to temperature change, it can be used with confidence. It has excellent chemical resistance, weatherability, corrosion resistance and flexibility. It does not need other tools such as vanda or torch lamp and it is easy to work with piping.
이러한 CD 전선관은 내면이 피부형이므로 마찰계수가 적어 전선의 인입이 용이하며, 합성수지 제품으로 타좀관에 비해 소음이 전혀 없고, 전공칼(또는 톱날) 등으로 쉽게 절단할 수 있어 시공이 용이하다. Since the inner surface of the CD conduit is skin-like, it has a low coefficient of friction and it is easy to pull in the wire. It is made of synthetic resin and has no noise compared to the other pipes and can be easily cut with a knife (or saw blade).
기존에는 주로 슬립성과 저온 충격성이 우수한 폴리에틸렌 수지를 사용하여 CD 전선관을 제조하였다. 그러나 폴리에틸렌 수지의 경우 폴리프로필렌 수지에 비하여 난연성이 떨어지고 비중이 높아 가격이 비싸다. 또한, 폴리에틸렌 수지는 폴리프로필렌 수지에 비하여 강성 및 복원성이 떨어져 배관 작업시 2인 이상이 진행하여야 하는 반면, 폴리프로필렌 수지는 강성이 우수하여 한 명이 충분히 작업을 진행할 수 있다. In the past, CD conduits were fabricated mainly using polyethylene resin, which has excellent slip and low temperature impact. However, in the case of the polyethylene resin, the flame retardancy is lower than that of the polypropylene resin, and the specific gravity is high, which is expensive. In addition, the polyethylene resin has less stiffness and resilience than polypropylene resin, and at least two people must work in piping work, while the polypropylene resin is excellent in rigidity, so one person can work sufficiently.
이에 따라, 최근 CD 전선관의 재료를 폴리에틸렌 수지에서 폴리프로필렌 수지로 바꾸려는 노력이 시도되고 있다. 그러나, 일반적으로 폴리프로필렌의 마찰계수는 약 0.3이고, 폴리에틸렌의 마찰계수는 약 0.2이기 때문에, 폴리프로필렌 수지는 폴리에틸렌 수지에 비하여 마찰성이 부족하여 전선관에 적용시 직경의 최대 60% 정도만 사용할 수 있다는 단점이 존재한다. 또한, 폴리프로필렌 수지는 슬립성이 낮아 전선이 잘 삽입되지 않기 때문에 작업시 그리스나 오일 등을 코팅하여 사용하여야 한다는 문제점이 있다. Accordingly, efforts have recently been made to replace the material of the CD conduit from a polyethylene resin to a polypropylene resin. However, since the coefficient of friction of polypropylene is generally about 0.3 and the coefficient of friction of polyethylene is about 0.2, the polypropylene resin is insufficient in friction as compared with the polyethylene resin, so that it can be used only up to 60% of its diameter when it is applied to a conduit Lt; / RTI > In addition, since the polypropylene resin has low slipperiness and the electric wire is not inserted well, there is a problem that it must be coated with grease or oil during the operation.
본 발명의 목적은 우수한 슬립성 및 내마모성을 제공하는 CD 전선관용 폴리프로필렌 조성물 및 이의 제조방법을 제공하는데 있다.It is an object of the present invention to provide a polypropylene composition for a CD wire tube that provides excellent slip and abrasion resistance and a method of manufacturing the same.
상술한 목적을 달성하기 위한 본 발명의 하나의 양상은 According to one aspect of the present invention for achieving the above object,
폴리프로필렌 수지 95~97 중량%, 올레아미드 0.1~1 중량%, 실리콘 오일 0.5~2중량%, 및 실리콘 분말 0.5~2중량%를 혼합한 콤바인덕트 전선관용 폴리프로필렌 조성물에 관한 것이다.The present invention relates to a polypropylene composition for a combine-duct cable tube, which comprises 95 to 97% by weight of a polypropylene resin, 0.1 to 1% by weight of an oleamide, 0.5 to 2% by weight of a silicone oil, and 0.5 to 2%
상술한 목적을 달성하기 위한 본 발명의 다른 양상은 According to another aspect of the present invention for achieving the above object,
폴리프로필렌 수지 95~97 중량%, 올레아미드 0.1~1 중량%, 실리콘 오일 0.5~2중량%, 및 실리콘 분말 0.5~2중량%를 포함하는 혼합물을 배럴 온도 190 내지 240℃, 다이 온도 220 내지 240℃로 하여 1축 또는 2축 압출기를 사용하여 압출하는 것을 포함하는 콤바인덕트 전선관용 폴리프로필렌 수지 조성물의 제조방법에 관한 것이다.A mixture comprising 95 to 97% by weight of polypropylene resin, 0.1 to 1% by weight of oleamide, 0.5 to 2% by weight of silicone oil and 0.5 to 2% by weight of silicon powder is heated at a barrel temperature of 190 to 240 캜, Deg.] C, and extruding the mixture by using a single-screw or twin-screw extruder. BACKGROUND OF THE INVENTION [0002] The present invention relates to a method for producing a polypropylene resin composition for a combine-
본 발명에 의해 제조된 폴리프로필렌 수지 조성물은 슬립성이 우수하여 이를 이용하여 건축용, 장비용으로 적합한 슬립성 및 생산성이 개선된 CD 전선관을 제작할 수 있다. 또한, 폴리프로필렌 수지의 내마모성을 증진시켜 우수한 내마모성을 갖는 CD 전선관을 제작할 수 있으며, 값이 싼 폴리프로필렌 수지를 주원료로 사용하기 때문에 종래 폴리에틸렌, PVC 등으로 제작되는 CD 전선관에 비하여 제조비용이 매우 저렴한 장점이 있다.The polypropylene resin composition prepared according to the present invention is excellent in slipperiness, and it is possible to manufacture a CD conduit with improved slipperiness and productivity, which is suitable for construction and equipment. In addition, it is possible to manufacture a CD conduit having improved abrasion resistance by improving the abrasion resistance of a polypropylene resin, and using a low-cost polypropylene resin as a main material, the manufacturing cost is very low as compared with a CD conduit which is conventionally made of polyethylene or PVC There are advantages.
본 발명은 폴리프로필렌 수지, 올레아미드 및 실리콘 성분이 조합된 CD 전선관용 폴리프로필렌 수지 조성물 및 이의 제조방법에 관한 것으로, 이를 이용하여 제조한 CD 전선관은 우수한 슬립성 및 내마모성을 갖는다. The present invention relates to a polypropylene resin composition for a CD electric wire tube combined with a polypropylene resin, an oleamide and a silicone component, and a method for producing the same, and the CD electric conduit manufactured using the polypropylene resin has excellent slip and abrasion resistance.
이하, 본 발명의 CD 전선관용 폴리프로필렌 조성물 및 이의 제조방법에 대하여 보다 상세하게 설명한다.Hereinafter, the polypropylene composition for a CD cable tube of the present invention and a method for producing the same will be described in detail.
본 발명의 일실시예에 따른 CD 전선관용 폴리프로필렌 조성물은, 폴리프로필렌 수지 95~97 중량%, 올레아미드 0.1~1 중량%, 실리콘 오일 0.5~2중량% 및 실리콘 분말 0.5~2중량%를 혼합한 것을 특징으로 한다.The polypropylene composition for a CD electric wire tube according to an embodiment of the present invention is a mixture of 95 to 97% by weight of polypropylene resin, 0.1 to 1% by weight of oleamide, 0.5 to 2% by weight of silicone oil and 0.5 to 2% .
본 발명에서 폴리프로필렌 수지는 조성물 전체 중량 대비 95~97 중량%의 함량으로 포함되면 바람직하다. 폴리프로필렌 수지 함량이 95중량% 미만이면 슬립이 과하여 압출기 호퍼에 투입되지 못하며, 97중량%를 초과하는 경우에는 기계적 물성이 저하된다. In the present invention, the polypropylene resin is preferably contained in an amount of 95 to 97% by weight based on the total weight of the composition. When the content of the polypropylene resin is less than 95% by weight, slip is excessively applied to the extruder hopper, and when it exceeds 97% by weight, the mechanical properties are deteriorated.
올레아미드는 제조된 CD 전선관 표면의 끈끈한(Sticky) 현상을 감소시키고, 표면의 미끄러움을 향상시키기 위해 첨가된다. 본 발명에서 올레아미드는 수지 조성물의 전체 중량을 기준으로 0.1~1 중량%의 범위로 포함되는 것이 바람직하다. 올레아미드가 0.1중량% 미만이면 첨가 효과가 미흡하여 바람직하지 않고, 1중량%를 초과하면 슬립성이 과도해져 보관상에 문제가 발생할 수 있다.Oleamide is added to reduce the Sticky phenomenon of the prepared CD conduit surface and to improve the surface slip. In the present invention, the oleamide is preferably contained in an amount of 0.1 to 1% by weight based on the total weight of the resin composition. If the amount of oleamide is less than 0.1 wt%, the effect of addition is insufficient, which is undesirable. If the amount of oleamide exceeds 1 wt%, the slip property is excessively excessive, which may cause problems in storage.
본 발명에서 실리콘 분말은 내마모성을 향상시키기 위하여 사용되며 수지 조성물의 전체 중량을 기준으로 0.5~2중량% 포함되는 것이 바람직하다. 실리콘 분말이 0.5중량% 미만이면 내마모성이 떨어지고, 2중량%를 초과하면 압출 작업시 슬립성 문제가 발생할 수 있다. In the present invention, the silicon powder is used for improving abrasion resistance and is preferably contained in an amount of 0.5 to 2% by weight based on the total weight of the resin composition. When the amount of the silicone powder is less than 0.5% by weight, the abrasion resistance is poor. When the amount of the silicone powder is more than 2% by weight, slipability may occur during extrusion.
본 발명에 의한 폴리프로필렌 수지 조성물은 상기 실리콘 분말을 단독으로 적용하지 않고, 실리콘 오일과 혼합하여 사용함으로써 마찰계수를 더욱 향상시킬 수 있다. 실리콘 분말을 단독으로 적용하면 분말자체가 뭉치는 성질이 있어서 균일하게 분산이 되지 않아 내마모성에 대한 균일성이 떨어지게 된다. 따라서, 실리콘 오일을 실리콘 분말과 일정량 혼합하여 사용함으로써 분산성 및 내마모성을 향상시킬 수 있다. The polypropylene resin composition according to the present invention can further improve the friction coefficient by mixing the silicone powder with the silicone oil without using the silicone powder alone. When the silicon powder is used singly, the powder itself is aggregated, so that it is not uniformly dispersed and the uniformity of wear resistance is lowered. Therefore, by using a silicone oil mixed with a certain amount of silicon powder, dispersibility and abrasion resistance can be improved.
본 발명에서 사용되는 실리콘 오일은 수지 조성물의 전체 중량을 기준으로 0.1~2중량%를 사용하는 것이 바람직하다. 실리콘 오일의 함량이 0.1중량% 미만이면 첨가 효과가 미흡하여 바람직하지 않고, 2중량%를 초과하는 경우 윤활 효과가 포화되어 적합하지 않다.The silicone oil used in the present invention is preferably used in an amount of 0.1 to 2% by weight based on the total weight of the resin composition. When the content of the silicone oil is less than 0.1% by weight, the effect of addition is insufficient, which is not preferable, and when it exceeds 2% by weight, the lubricating effect is saturated.
본 발명에 의한 폴리프로필렌 수지 조성물에서 실리콘 오일과 실리콘 분말의 혼합비는 1:2 내지 2:1인 것이 바람직하다. 상기 범위를 벗어나서 혼합되는 경우 실리콘 분말이 조성물 내에 균일하게 분산되지 않거나 조성물의 내마모성이 떨어진다. 이와 같이 실리콘 오일과 실리콘 분말의 혼합비가 1:2 내지 2:1로 적용될 때 제조된 폴리프로필렌 수지 조성물의 슬립성을 향상시켜 가공성을 향상시키고, 압출시 표면이 매끄러워져서 외관을 매끈하게 하며, 내마모성을 향상시킬 수 있다.In the polypropylene resin composition according to the present invention, the mixing ratio of the silicone oil and the silicon powder is preferably 1: 2 to 2: 1. When mixed outside the above range, the silicon powder is not uniformly dispersed in the composition or the abrasion resistance of the composition deteriorates. When the mixing ratio of the silicone oil and the silicon powder is applied in the range of 1: 2 to 2: 1, the slip property of the polypropylene resin composition thus prepared is improved to improve the workability, the surface is smoothed by the extrusion, The wear resistance can be improved.
본 발명은 또한, 폴리프로필렌 수지 95~97 중량%, 올레아미드 0.1~1 중량%, 실리콘 오일 0.5~2중량%, 및 실리콘 분말 0.5~2중량%를 포함하는 혼합물을 배럴 온도 190 내지 240℃, 다이 온도 220 내지 240℃ 로 하여 1축 또는 2축 압출기를 사용하여 압출하는 것을 포함하는 CD 전선관용 폴리프로필렌 수지 조성물의 제조방법에 관한 것이다.The present invention also relates to a process for the preparation of a mixture comprising 95 to 97% by weight of polypropylene resin, 0.1 to 1% by weight of oleamide, 0.5 to 2% by weight of silicone oil and 0.5 to 2% And extruding the mixture at a die temperature of 220 to 240 占 폚 using a uniaxial or biaxial extruder to produce a polypropylene resin composition for a CD wire tube.
본 발명에 따른 폴리프로필렌 수지 조성물의 제조방법에 있어서 상기 폴리프로필렌, 올레아미드, 실리콘 오일 및 실리콘 분말의 종류 및 함량은 상기 폴리프로필렌 수지 조성물에 관한 부분에서 설명된 것과 동일하게 사용될 수 있다.In the method for producing a polypropylene resin composition according to the present invention, the kind and content of the polypropylene, oleamide, silicone oil and silicon powder may be the same as those described in the section regarding the polypropylene resin composition.
본 발명에 따른 폴리프로필렌 수지 조성물의 제조방법에 있어서 압출 조건은 배럴 온도 190 내지 240℃, 다이 온도 220 내지 240℃의 범위에서 할 수 있으며, 압출기의 종류는 1축 압출기 또는 2축 압출기가 제한 없이 사용될 수 있다. 배럴 온도가 190℃ 미만일 경우에는 용융이 되지 않아 작업성이 떨어지고, 240℃를 초과하는 경우에는 수지 분해를 야기하여 물성이 저하될 뿐 아니라 슬립제로 사용되는 첨가제의 분해를 야기하여 다이에서 탄화물이 발생하여 다이 빌드-업(build-up)이 발생할 수 있다.In the process for producing a polypropylene resin composition according to the present invention, the extrusion conditions may be in the range of the barrel temperature of 190 to 240 캜 and the die temperature of 220 to 240 캜. The extruder may be a single-screw extruder or a twin- Can be used. When the barrel temperature is less than 190 ° C, the resin is not melted and workability is poor. If the barrel temperature is more than 240 ° C, resin decomposition is caused to result in degradation of the physical properties and also decomposition of additives used as a slip agent, A build-up may occur.
상기 압출 과정에는 내열안정제, 장기 열안정제, 내후 안정제, 활제, 안료, 염료, 중화제 등의 통상적인 첨가제를 본 발명의 특징에 어긋나지 않는 범위 내에서 첨가할 수 있다. 본 발명의 압출시에는 니더, 롤러, 반바리 믹서 등의 혼련기와 1축 또는 2축 압출기를 사용하여 혼련하는 방법이 이용될 수 있다.Conventional additives such as heat stabilizers, long-term heat stabilizers, weather stabilizers, lubricants, pigments, dyes, and neutralizers may be added to the extrusion process within a range not to deviate from the characteristics of the present invention. In the extrusion of the present invention, a method of kneading using a kneader such as a kneader, a roller or a Banbury mixer and a single screw or twin screw extruder may be used.
이하, 본 발명을 구체적인 실시예를 참조하여 상세하게 설명한다. 제시된 실시예는 단지 본 발명을 구체적으로 예시하기 위한 것일 뿐이며, 본 발명의 청구범위를 제한하는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to specific examples. The embodiments shown are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
< 실시예 1 내지 3: 폴리프로필렌 수지 복합재의 제조>Examples 1 to 3: Production of Polypropylene Resin Composite Material [
폴리프로필렌 수지(효성, HB 240T.), 올레 아미드(악소노벨마이드, Armoslip CP), 실리콘 오일(신에츠사,KF-96), 실리콘 분말(다우코닝사)의 조성비를 하기 표 1과 같이 하여 배합기(SUPER MIXER)에서 혼합하여 교반하였다. 혼합된 폴리프로필렌 수지 조성물을 압출기(한국이엠, Single Screw Extruder, 외경40mm, L/D=36)를 사용하여 배럴온도는 190 ~ 240℃ 다이온도는 220 ~ 240℃로 하여 용융 압출시켜 펠렛으로 제조하고, 이를 압출하여 폴리프로필렌 수지 복합재를 제작하였다.The composition ratios of the polypropylene resin (Hyosung, HB 240T.), Oleamide (axonovellite, Armoslip CP), silicone oil (Shin-Etsu, KF-96) and silicone powder (Dow Corning) SUPER MIXER) and stirred. The mixed polypropylene resin composition was melt-extruded using a single screw extruder (OD: 40 mm, L / D = 36) at a barrel temperature of 190 to 240 ° C. and a die temperature of 220 to 240 ° C. And extruded to produce a polypropylene resin composite.
< 비교예 1 내지 6: 폴리프로필렌 수지 복합재의 제조 >≪ Comparative Examples 1 to 6: Production of polypropylene resin composite material >
슬립제를 사용하지 않은 것을 제외하고 조성비를 하기 표 1과 같이 하여 실시예 1과 동일한 방법에 의해 폴리프로필렌 수지 복합재를 제조하였다. A polypropylene resin composite material was prepared in the same manner as in Example 1, except that the slip agent was not used.
<물성 측정: 마찰계수 측정><Measurement of physical properties: Measurement of friction coefficient>
실시예와 비교예에서 제조된 폴리프로필렌 수지 복합재의 마찰계수를 측정하여 하기 표 1에 기재하였다. 마찰계수는 ASTM D1894에 의거하여 측정하였다. The friction coefficients of the polypropylene resin composites prepared in Examples and Comparative Examples were measured and reported in Table 1 below. The coefficient of friction was measured according to ASTM D1894.
상기 표 1에 의하면, 실시예 1 내지 3에 의한 폴리프로필렌 수지 조성물로 제조된 복합재는 비교예에 의한 폴리프로필렌 수지 조성물로 제조된 복합재와 비교하여 이물성이 개선되었음을 알 수 있다.According to the above Table 1, the properties of the composites made of the polypropylene resin compositions according to Examples 1 to 3 are improved compared to the composites made of the polypropylene resin compositions according to the comparative examples.
이상에서 본 발명의 바람직한 실시예에 대하여 상세하게 설명하였으나, 본 발명은 상술한 실시예에 국한되는 것은 아니고, 본 발명의 취지 또는 범위를 벗어나지 않고 본 발명의 구조를 다양하게 변경하고 변형할 수 있다는 사실은 당업자에게 자명할 것이다. 따라서, 본 발명의 보호범위는 첨부한 특허청구범위 및 그와 균등한 범위로 정해져야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, The facts will be apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined in the appended claims and their equivalents.
Claims (5)
A polypropylene resin composition for a combine-duct wire tube, comprising 95 to 97% by weight of a polypropylene resin, 0.1 to 1% by weight of oleamide, 0.5 to 2% by weight of a silicone oil and 0.5 to 2% Wherein the mixing ratio of the powder to the polypropylene resin is 1: 2 to 2: 1.
A mixture comprising 95 to 97% by weight of a polypropylene resin, 0.1 to 1% by weight of an oleamide, 0.5 to 2% by weight of a silicone oil and 0.5 to 2% by weight of a silicon powder at a barrel temperature of 190 to 240 캜, a die temperature of 220 to 240 캜 Wherein the mixing ratio of the silicone oil to the silicon powder is 1: 2 to 2: 1, and the mixing ratio of the silicone oil to the silicon powder is 1: 2 to 2: 1. The polypropylene resin composition of claim 1, A process for producing a polypropylene resin composition for a combine duct wire tube.
A combine duct conduit manufactured by using the polypropylene resin composition for a combine duct wire tube according to claim 1.
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| JP2012104248A (en) | 2010-11-08 | 2012-05-31 | Toray Advanced Film Co Ltd | Laminated material for secondary battery container, secondary battery container, and method for manufacturing secondary battery container |
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