KR101312828B1 - Protection panel of composition for underground product - Google Patents

Protection panel of composition for underground product Download PDF

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KR101312828B1
KR101312828B1 KR1020110038139A KR20110038139A KR101312828B1 KR 101312828 B1 KR101312828 B1 KR 101312828B1 KR 1020110038139 A KR1020110038139 A KR 1020110038139A KR 20110038139 A KR20110038139 A KR 20110038139A KR 101312828 B1 KR101312828 B1 KR 101312828B1
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protection panel
composition
present
underground
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KR20120120531A (en
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김평국
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김평국
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/10Metal compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02Homopolymers or copolymers of hydrocarbons
    • C08L25/04Homopolymers or copolymers of styrene
    • C08L25/06Polystyrene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/02Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H02G9/025Coverings therefor, e.g. tile
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

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Abstract

본 발명은 가벼워서 적재 및 운반이 용이하고, 단단하여 파손이 잘 되지 않도록 한 지중매설물 보호패널의 조성물에 관한 것으로, 이러한 본 발명은 PE 80 중량%, 세라믹비드의 충전제 8 중량%, 폴리스틸렌의 저수축제 4 중량%, 부타디엔계 고무 2 중량%, 비닐계 모노머 1 중량%, 퍼옥시에스테르의 경화개시제 1 중량%, 스테아린산아연의 이형제 1 중량%, 산화칼슘의 증점제 1 중량% 및 통상의 첨가제로 세라믹안료, 아연-스트론튬의 열안정제, 폴리프로필렌의 UV안정제, 카르복실산의 중합반응 억제제 중에서 선택된 하나 이상의 성분이 2 중량 %로 이루어진다.The present invention relates to a composition of a landfill protection panel that is light and easy to load and transport, and is hard and not easily damaged. The present invention relates to 80% by weight of PE, 8% by weight of fillers for ceramic beads, and a low shrinkage agent for polystyrene. 4% by weight, butadiene-based rubber, 2% by weight of vinyl monomer, 1% by weight of curing initiator of peroxy ester, 1% by weight of release agent of zinc stearate, 1% by weight of thickener of calcium oxide, and common additives At least one component selected from thermal stabilizers of zinc-strontium, UV stabilizers of polypropylene, and polymerization inhibitors of carboxylic acids comprises 2% by weight.

Description

지중매설물 보호패널의 조성물{PROTECTION PANEL OF COMPOSITION FOR UNDERGROUND PRODUCT}Composition of underground cover protection panel {PROTECTION PANEL OF COMPOSITION FOR UNDERGROUND PRODUCT}

본 발명은 지중에 매설된 각종 매설물을 보호하는 보호패널에 관한 것으로, 보다 상세하게는 가벼워서 적재 및 운반이 용이하고, 단단하여 파손이 잘 되지 않도록 한 지중매설물 보호패널의 조성물에 관한 것이다.The present invention relates to a protective panel that protects various buried materials buried in the ground, and more particularly, to a composition of the underground buried protection panel that is light, easy to load and transport, hard to prevent damage.

현대의 산업화 및 정보화가 가속화됨에 따라 전력 사용량과 정보 통신량이 급속도로 증가하고 있는 실정으로, 이를 위한 전력 공급이나 신호 송출은 서로 떨어져 위치한 전력 생산지와 소비지 사이 또는, 정보 공급자와 수요자 사이를 케이블로 피복된 전선으로 연결하여 이루어지고 있다. 이들 케이블들은 도시 미관 등 여러가지 이유를 고려하여 지중에 공동구를 형성하여 배선하거나 지중에 매설하는 방식으로 설치되는 것이 일반적이다.With the rapid growth of modern industrialization and informatization, the amount of power consumption and information communication is increasing rapidly. For this purpose, power supply and signal transmission are covered by cables between power generation sites and consumers, or between information providers and consumers. It is made by connecting with wires. These cables are generally installed in a manner that a cavity is formed in the ground and is wired or buried in the ground in consideration of various reasons such as an urban beauty.

일단 지중에 매설된 매설물(케이블 등)은 특별한 사정이 없는 한, 장기간 동안 지중에 매설된 상태로 유지되지만, 지중매설물의 보수 및 증선, 도로의 포장공사, 가스관이나 수도관과 같은 다른 지중매설물 공사가 있게 되면 부득이하게 지중선로를 재굴착하지 않을 수 없다. 이때 부주의한 굴착으로 지중매설물이 손상될 염려가 있기 때문에, 통상적으로 도 1에 도시된 바와 같이, 지중매설물이 설치된 상측에 지중매설물 보호패널(10)이 설치된다.Once buried in the ground (cables, etc.) remain buried in the ground for an extended period of time, unless there are special circumstances, but other underground works, such as repairing and extending the ground, road paving, gas or water pipes, etc. If there is, it is inevitable to re-excavate the underground line. At this time, since there is a risk that the ground buried damage due to inadvertent drilling, as shown in Figure 1, the ground buried protection panel 10 is installed on the upper side is installed.

그러나, 상기 종래의 지중매설물 보호패널(10)은 금속재질로 이루어져 있는바,However, the conventional underground buried material protection panel 10 is made of a metal material,

이러한 금속재질은 가공처리공정 및 경제성 면에서 플라스틱재질에 비해 불리한 입장에 있다.These metal materials are in a disadvantageous position compared to plastic materials in terms of processing and economics.

또한, 종래의 지중매설물 보호패널(10)은 금속재질로 이루어져 있는바,In addition, the conventional underground buried protection panel 10 is made of a metal material,

무게가 필요 이상으로 많이 나가지 때문에, 적재 및 운반이 불편한 문제점이 있었다.Since the weight does not go much more than necessary, there was a problem in that loading and transportation is inconvenient.

특히, 종래의 지중매설물 보호패널(10)은 금속재질로 이루어져 있는바,In particular, the conventional underground buried material protection panel 10 is made of a metal material,

지중매설 작업시, 작업자의 부주의해 금속재질의 지중매설물 보호패널이 찌그러지는 문제점이 있었다.In the underground laying work, there was a problem that the ground protection panel made of metal material is crushed inadvertently.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출 된 것으로서, 그 목적은 가벼워서 적재 및 운반이 용이하고, 단단하여 파손이 잘 되지 않도록 한 지중매설물 보호패널의 조성물을 제공하는 데 있다.The present invention has been made to solve the above problems, the object of the present invention is to provide a composition of the underground buried protection panel is light, easy to load and transport, hard to prevent damage.

상기의 목적을 달성하기 위한 본 발명의 특징에 따르면,According to a feature of the present invention for achieving the above object,

PE 80 중량%, 세라믹비드의 충전제 8 중량%, 폴리스틸렌의 저수축제 4 중량%, 부타디엔계 고무 2 중량%, 비닐계 모노머 1 중량%, 퍼옥시에스테르의 경화개시제 1 중량%, 스테아린산아연의 이형제 1 중량%, 산화칼슘의 증점제 1 중량% 및 통상의 첨가제로 세라믹안료, 아연-스트론튬의 열안정제, 폴리프로필렌의 UV안정제, 카르복실산의 중합반응 억제제 중에서 선택된 하나 이상의 성분이 2 중량 %로 이루어진다.PE 80 wt%, 8 wt% filler for ceramic beads, 4 wt% polystyrene low shrinkage agent, 2 wt% butadiene rubber, 1 wt% vinyl monomer, 1 wt% curing initiator of peroxyester, release agent of zinc stearate 1 2% by weight of at least one component selected from ceramics, thermal stabilizers of zinc-strontium, UV stabilizers of polypropylene, and polymerization inhibitors of carboxylic acids by weight percent, thickener of calcium oxide and conventional additives.

본 발명에 따른 지중매설물 보호패널의 조성물로 지중매설물 보호패널을 만들 경우, 가벼워서 적재 및 운반이 용이한 효과가 있다.When the underground protection panel is made of the composition of the underground protection panel according to the present invention, it is light and easy to load and transport.

특히, 본 발명에 따른 지중매설물 보호패널의 조성물로 지중매설물 보호패널을 만들 경우, 단단하여 파손이 잘 되지 않는 효과가 있는바, 지중매설물 보호패널의 역할을 제대로 수행하는 효과가 있다.In particular, when the underground protection panel is made of the composition of the underground protection panel according to the present invention, there is an effect that is hard and not easily broken, there is an effect to properly perform the role of the underground protection panel.

도 1은 종래의 지중매설물 보호패널을 나타낸 도면이다.1 is a view showing a conventional underground protection panel.

이하, 본 발명에 따른 지중매설물 보호패널의 조성물의 바람직한 실시예를 상세히 설명한다. 하기에서 본 발명을 설명함에 있어서, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다.Hereinafter, a preferred embodiment of the composition of the underground protection panel according to the present invention will be described in detail. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

본 발명에 따른 지중매설물 보호패널의 조성물은,The composition of the buried land protection panel according to the present invention,

PE는 80 중량%, ABS 수지 40 중량%, 충전제 8 중량%, 저수축제 4 중량%, 부타디엔계 고무 2 중량%, 비닐계 모노머 1 중량%, 경화개시제 1 중량%, 이형제 1 중량 %, 증점제 1 중량 % 및 통상의 첨가제로 안료, 열안정제, UV안정제, 중합반응 억제제 중에서 선택된 하나 이상의 성분이 2 중량 %로 이루어진다.PE is 80 wt%, ABS resin 40 wt%, filler 8 wt%, low shrinkage agent 4 wt%, butadiene rubber 2 wt%, vinyl monomer 1 wt%, curing initiator 1 wt%, release agent 1 wt%, thickener 1 2% by weight of one or more components selected from pigments, thermal stabilizers, UV stabilizers, polymerization inhibitors by weight percent and customary additives.

상기와 같은 본 발명에 따른 지중매설물 보호패널의 조성물을 상세히 설명하면 다음과 같다.Referring to the composition of the underground buried protection panel according to the present invention as described above in detail.

본 발명은 PE를 주성분으로 하며, 여기에 충전제, 저수축제, 부타디엔계 고무, 비닐계 모노머, 경화개시제, 이형제, 증점제 및 통상의 첨가제가 함유되어 있는 지중매설물 보호패널의 조성물을 블로어 몰딩 공법으로 제조하여 지중매설물의 보호패널 재로로 사용하는 것에 관한 것이다.The present invention is based on PE, and the composition of the landfill protection panel containing a filler, a low shrinkage agent, butadiene-based rubber, a vinyl monomer, a curing initiator, a releasing agent, a thickener and a common additive is prepared by the blow molding method The present invention relates to the use of earthquake protection as a protective panel material.

상기한 본 발명에 따른 지중매설물 보호패널의 조성물에 사용되는 각 조성을 상세하게 설명하면 다음과 같다.Referring to each composition used in the composition of the underground buried protection panel according to the present invention in detail as follows.

먼저, 폴리에틸렌(PE)는 에틸렌(CH=CH)의 중합체 모두를 가리켰으나, 지금은 플라스틱에 사용되는 고(高)중합체만을 가리킨다.First, polyethylene (PE) refers to both polymers of ethylene (CH = CH), but now refers only to high polymers used in plastics.

폴리염화비닐·폴리스티렌·폴리프로필렌과 함께 4대 플라스틱의 하나. 약칭은 PE. 에틸렌은 천연가스와 석유의 크래킹으로 얻는데, 에틸렌의 중합방법에 따라 분자구조나 성질이 다른 종류로 나뉜다.One of four plastics with polyvinyl chloride, polystyrene and polypropylene. Abbreviated as PE. Ethylene is obtained by cracking natural gas and petroleum, and its molecular structure and properties are classified according to the polymerization method of ethylene.

① 저밀도 폴리에틸렌 : 밀도는 0.910∼0.925(LD). 에틸렌에 극히 소량의 산소를 촉매로 가해 1,000∼2,000atm의 고압, 100∼300℃의 온도에서 중합시키므로 고압법 폴리에틸렌이라고도 한다.① Low Density Polyethylene: Density is from 0.910 to 0.925 (LD). Since a small amount of oxygen is added to ethylene as a catalyst and polymerized at a high pressure of 1,000 to 2,000 atm and a temperature of 100 to 300 ° C., it is also referred to as high pressure polyethylene.

초고압법(7,000atm)이 미국의 뒤퐁사에서 개발되고 있다.Ultra high pressure (7,000atm) is being developed at Dupont, USA.

② 중밀도 폴리에틸렌 : 밀도는 0.926∼0.940(MD). 과산화벤조일을 개시제(開始劑)로 하여 약 500atm, 115∼120℃에서 중합시키는데, 고밀도의 것과 저밀도의 것을 혼합하는 방법도 있다.② Medium density polyethylene: Density is 0.926 ~ 0.940 (MD). Although it is superposed | polymerized at about 500 atm and 115-120 degreeC using benzoyl peroxide as an initiator, there is also the method of mixing a high density thing and a low density thing.

③ 고밀도 폴리에틸렌 : 밀도는 0.941∼0.965(HD). 특수 유기금속 촉매(치글러형 촉매)를 사용하여, 상압(常壓) 또는 10atm 정도, 60∼80℃에서 중합시키며, 저압법이라고도 한다.③ High Density Polyethylene: Density is from 0.941 to 0.965 (HD). A special organometallic catalyst (Ziegler-type catalyst) is used to polymerize at atmospheric pressure or about 10 atm at 60 to 80 ° C., also referred to as low pressure method.

미국의 필립스사에서는 30∼40atm, 100∼170℃ 에서 크로미아-알루미나계 촉매를 사용하는 중압법(中壓法), 몰리브덴산-알루미나를 사용하는 스탠더드사법이라는 중압법이 개발되고 있다.Philips of the United States is developing a medium pressure method using a chromium-alumina catalyst at 30 to 40 atm and a temperature of 100 to 170 ° C, and a standard method using a molybdate-alumina.

폴리에틸렌은 분자량이 수천에서 수십만인 것이 있고, 특히 초고압법에서는 100만 이상의 분자량을 가진다.Polyethylene has a molecular weight of several thousand to hundreds of thousands, and particularly has a molecular weight of 1 million or more in the ultrahigh pressure method.

저밀도 폴리에틸렌의 분자는 군데군데 분기(分岐)되어 있고 규칙적으로 배열되어 있지 않아 결정화(結晶化)되기 어려우므로 부드럽다.The molecules of low-density polyethylene are soft because they are branched and not arranged regularly and difficult to crystallize.

고밀도 폴리에틸렌은 대체로 정연한 노르말사슬 모양으로 되어 있어 결정부분이 많으며 경질(硬質)이다.High-density polyethylene is generally in the shape of a regular normal chain, with many crystal parts and hard.

각 사슬 말단은 메틸기(-CH)이므로 분자 속의 메틸기 수에 따라 분기의 정도를 알 수 있다.Since each chain terminal is a methyl group (-CH), the degree of branching can be known depending on the number of methyl groups in the molecule.

고밀도인 것은 저밀도인 것에 비해 연화(軟化) 온도가 30℃나 높으며 기계적 강도가 크다.High density has a softening temperature of 30 ° C. as high as low density and high mechanical strength.

폴리에틸렌의 일반적 성질은 반투명한 유백색(乳白色)이며 물보다 가볍고, 연소하면 파라핀과 같은 상태로 뚝뚝 떨어진다.The general properties of polyethylene are translucent milky white, lighter than water, and when burned, they fall like paraffin.

내수성(耐水性)·전기절연성·내산성(耐酸性)·내알칼리성이 뛰어나고, 열안정성도 좋으며 성형(成形)하기 쉽다.It is excellent in water resistance, electrical insulation, acid resistance and alkali resistance, good thermal stability and easy to mold.

필름·시트·병, 탱크의 중공용기(中空容器), 파이프, 전선 피복(被覆)으로서 해저(海底) 전선케이블과 전화 가선(架線), 라디오·텔레비전·레이더 등의 고주파 절연재료, 합성섬유 등 용도가 다양하다.Films, sheets, bottles, hollow containers of tanks, pipes, wire coverings, high-frequency insulation materials such as submarine wire cables, telephone wires, radio, television, and radar, synthetic fibers, etc. Various uses

여기서, 상기 PE는 80 중량%로 사용한다.Here, the PE is used at 80% by weight.

그리고, 충전제는 일반적으로 수지 조성물에서 많이 사용되는 성분이 사용될 수 있으며 탄산칼슘(CaCO3), 마이카, 탈크, 클레이, 실리카 구(silica sphere) 및 세라믹 비드(ceramic bead) 중에서 선택된 단독 또는 2종 이상의 혼합물을 사용할 수 있다. 본 발명에서 사용되는 충전제의 함량은 전체 조성에 대하여 8 중량%로 사용한다.In addition, the filler may be a component commonly used in the resin composition may be used alone or a mixture of two or more selected from calcium carbonate (CaCO3), mica, talc, clay, silica sphere and ceramic beads (ceramic bead) Can be used. The content of the filler used in the present invention is used at 8% by weight based on the total composition.

그리고, 첨가제로서 여러 가지 성분을 다양하게 조합하여 사용하므로서 기계적 물성과 표면외관 특성, 그리고 성형성 등의 향상을 꾀하고 있는바, 그 첨가제로서는 저수축제, 부타디엔계 고무, 비닐계 모노머, 경화개시제, 이형제, 증점제 등이 사용될 수 있고, 또 통상의 첨가제로 안료, 열안정제, UV안정제, 중합반응억제제 등이 사용될 수 있으나 이들 첨가제나 통상의 첨가제 중에서 어느 일부의 사용을 생략하여도 어느 정도의 물성을 얻을 수 있으며, 바람직하게는 상기 열거한 모든 첨가제를 사용하는 것이 바람직하다.In addition, various combinations of various components are used as additives to improve mechanical properties, surface appearance characteristics, and moldability, and the additives include low shrinkage agent, butadiene rubber, vinyl monomer, curing initiator, Release agents, thickeners and the like may be used, and pigments, thermal stabilizers, UV stabilizers, polymerization inhibitors, etc. may be used as common additives, but some physical properties may be omitted even if some of these additives or conventional additives are omitted. It is possible to obtain and preferably use all the additives listed above.

그리고, 사용한 첨가제 중에서 저수축제(low profile agent)는 일반 블로어 몰딩 공법의 제품이 지닌 표면 상태 불량 및 체적안정성의 저하를 개선하기 위하여 첨가하여 표면에서의 평활도(smoothness)를 향상시켜 성형품의 표면을 경면(mirror-like surface)과 유사하게 해 주는 역할을 한다.Among the additives used, a low profile agent is added to improve the surface condition defects and the deterioration of the volume stability of the products of the general blow molding method, thereby improving the smoothness of the surface to mirror the surface of the molded article. It is similar to the mirror-like surface.

여기서, 본 발명에서 사용되는 저수축제는 폴리스틸렌 이고, 함량은 전체 조성에 대하여 4 중량%로 사용한다.Here, the low shrinkage agent used in the present invention is polystyrene, and the content is used at 4% by weight based on the total composition.

그리고, 부타디엔계 고무는 수지 조성물의 내충격성 및 유연성을 향상시키며, 아크릴로니트릴-부타디엔 공중합체(NBR), 스티렌-부타디엔 공중합체(SBS), 스티렌-에틸렌-부타디엔-스티렌 공중합체(SEBS), 말단기가 카르복실기로 변성된 고무, 그리고 상기 변성 고무로 제조된 에폭시 수지 중에서 선택된 단독 또는 2종 이상의 혼합물이 사용된다.In addition, the butadiene-based rubber improves the impact resistance and flexibility of the resin composition, acrylonitrile-butadiene copolymer (NBR), styrene-butadiene copolymer (SBS), styrene-ethylene-butadiene-styrene copolymer (SEBS), A single or a mixture of two or more selected from the rubber in which the end group is modified with a carboxyl group, and the epoxy resin made of the modified rubber is used.

본 발명에서는 부타디엔계 고무는 2 중량%를 사용한다.In this invention, butadiene type rubber uses 2 weight%.

그리고, 상기 비닐계의 모노머 (monomer)는 경화반응을 위한 것으로서 스티렌, 메틸메타아크릴레이트, 디비닐벤젠(DVB), α-메틸스티렌, 비닐아세테이트, 아크릴레이트 중에서 선택된 하나 이상의 성분이 사용될 수 있다. 이와 함께 경화반응을 위한 촉매인 경화개시제 (initiator)로 퍼옥시에스테르, 디알킬퍼옥사이드, 알킬아릴퍼옥사이드, 디아릴퍼옥사이드, 퍼옥시케탈, 케톤퍼옥사이드 및 아조화합물 중에서 선택된 것을 1 중량% 사용한다.In addition, the vinyl monomer may be one or more components selected from styrene, methyl methacrylate, divinylbenzene (DVB), α-methyl styrene, vinyl acetate, and acrylate as a curing reaction. In addition, 1% by weight of a curing initiator (initiator) selected from peroxy ester, dialkyl peroxide, alkylaryl peroxide, diaryl peroxide, peroxy ketal, ketone peroxide and azo compound is used. .

그리고, 그 외에 첨가제로 탈형시에 작업성을 향상시키기 위하여 이형제를 사용하며, 스테아린산아연(zinc stearate) 또는 스테아린산칼슘(calsium stearate) 등을 1 중량%을 사용한다.In addition, a release agent is used to improve workability when demolding as an additive, and zinc stearate or calcium stearate is used in an amount of 1% by weight.

그리고, 블로어 몰딩 공법의 작업성을 용이하게 하도록 점도를 증가시킬 수 있는 증점제(thickening agent)로 CaO(산화칼슘), Ca(OH) 2 또는 MgO, Mg(OH) 2 등을 1 중량%을 사용한다.In addition, 1 wt% of CaO (calcium oxide), Ca (OH) 2 or MgO, Mg (OH) 2 is used as a thickening agent capable of increasing the viscosity to facilitate the workability of the blower molding process. do.

그리고, 첨가제로서는 세라믹안료(pigment), 아연-스트론튬의 열안정제, 폴리프로필렌의 UV 안정제, 카르복실산의 중합반응 억제제(inhibitor) 등을 1 중량%을 사용한다.As the additive, 1% by weight of a ceramic pigment, a thermal stabilizer of zinc-strontium, a UV stabilizer of polypropylene, an inhibitor of carboxylic acid polymerization, or the like is used.

한편, 상기와 같이 이루어진 조성물들을 압출기(도시는 생략함)에 순서적으로 투입한 후, 상기 압출기로부터 성형된 지중매설물 보호패널을 얻는다.On the other hand, after the composition made as described above is sequentially put into an extruder (not shown), to obtain a landfill protection panel molded from the extruder.

상기 발명의 상세한 설명은 단지 본 발명의 예시적인 것으로서, 이는 단지 본 발명을 설명하기 위한 목적에서 사용된 것이지 의미 한정이나 특허청구범위에 기재된 본 발명의 범위를 제한하기 위하여 사용된 것은 아니다. 그러므로 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다.The foregoing description of the invention is merely exemplary of the invention and is used for the purpose of illustration only and is not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (1)

PE 80 중량%, 세라믹비드의 충전제 8 중량%, 폴리스틸렌의 저수축제 4 중량%, 부타디엔계 고무 2 중량%, 비닐계 모노머 1 중량%, 퍼옥시에스테르의 경화개시제 1 중량%, 스테아린산아연의 이형제 1 중량%, 산화칼슘의 증점제 1 중량% 및 통상의 첨가제로 세라믹안료, 아연-스트론튬의 열안정제, 폴리프로필렌의 UV안정제, 카르복실산의 중합반응 억제제 중에서 선택된 하나 이상의 성분이 2 중량 %로 이루어진 것을 특징으로 하는 지중매설물 보호패널의 조성물.PE 80 wt%, 8 wt% filler for ceramic beads, 4 wt% polystyrene low shrinkage agent, 2 wt% butadiene rubber, 1 wt% vinyl monomer, 1 wt% curing initiator of peroxyester, release agent of zinc stearate 1 2% by weight of at least one component selected from ceramic pigments, thermal stabilizers of zinc-strontium, UV stabilizers of polypropylene, and polymerization inhibitors of carboxylic acids by weight percent, thickener of calcium oxide and conventional additives. The composition of the buried material protection panel.
KR1020110038139A 2011-04-25 2011-04-25 Protection panel of composition for underground product KR101312828B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174759A (en) * 1994-12-27 1996-07-09 Mitsui Toatsu Chem Inc Composite plate of sheet molding compound and zinc plate
KR20010066180A (en) * 1999-12-31 2001-07-11 이계안 Thermoplastic resin composition for outer pannel of automobile
KR20020014891A (en) * 2000-08-19 2002-02-27 이계안 Thermosetting resin composition for outer pannel of automobile
KR100952012B1 (en) 2008-06-30 2010-04-08 현대자동차주식회사 Polypropylene-Polyethylene Composite with Characteristic of High Impact Strength and Low Shrinkage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174759A (en) * 1994-12-27 1996-07-09 Mitsui Toatsu Chem Inc Composite plate of sheet molding compound and zinc plate
KR20010066180A (en) * 1999-12-31 2001-07-11 이계안 Thermoplastic resin composition for outer pannel of automobile
KR20020014891A (en) * 2000-08-19 2002-02-27 이계안 Thermosetting resin composition for outer pannel of automobile
KR100952012B1 (en) 2008-06-30 2010-04-08 현대자동차주식회사 Polypropylene-Polyethylene Composite with Characteristic of High Impact Strength and Low Shrinkage

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