KR20020036291A - incombustible polyolefin resinous composition - Google Patents
incombustible polyolefin resinous composition Download PDFInfo
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Abstract
Description
본 발명은 불연성 폴리올레핀 수지조성물에 관한 것으로, 보다 상세하게는 저밀도폴리에틸렌, 수산화마그네슘 및 상용화제로 구성되어 최종 수지조성물의 유연성을 증대시킨 불연성 폴리올레핀 수지조성물에 관한 것이다.The present invention relates to a nonflammable polyolefin resin composition, and more particularly to a nonflammable polyolefin resin composition composed of low density polyethylene, magnesium hydroxide and a compatibilizer to increase the flexibility of the final resin composition.
폴리올레핀계 수지는 무게가 가볍고 가격이 쌀 뿐 아니라 물성이 우수하여 여러 가지 용도로 사용되고 있으나 재료 자체의 가연성이 높아서 그 사용범위가 제한되어 왔다. 이러한 문제점을 보완하기 위하여 할로겐 계통의 난연제를 폴리올레핀에 첨가하여 불연성을 증진시키는 연구가 진행되어 왔으나, 이러한 조성물은 연소시 유독가스가 발생하는 등의 문제점이 있어서 최근에는 비할로겐계 무기난연제를 사용하는 추세로 변하고 있다.Polyolefin resins are used for various purposes because of their light weight, low price, and excellent physical properties, but their use range has been limited due to the high flammability of the materials themselves. In order to compensate for this problem, research has been conducted to improve the nonflammability by adding a halogen-based flame retardant to polyolefin, but such a composition has a problem such as toxic gas generated during combustion. The trend is changing.
이와 관련하여 미합중국 특허 제3915910호에는 폴리올레핀에 목분과 수산화알루미늄 또는 수산화마그네슘, 상용화제를 첨가하여 난연성을 증진시킨 수지조성물에 관하여 개시되어 있으나, 이러한 조성물의 유연성이 부족하여 건자재와 같은 쉬트상의 용도에 적용시 곡면부위 등에 시공이 어려운 문제가 있다.In this regard, U.S. Patent No. 3915910 discloses a resin composition in which wood flour, aluminum hydroxide or magnesium hydroxide, and a compatibilizer are added to a polyolefin to improve flame retardancy, but such a composition lacks flexibility in sheet-like applications such as building materials. When it is applied, there is a problem that the construction is difficult.
한편 일본특허공개 평2-182415호, 평10-76598호 및 평10-44323호에는 페놀수지에 입자크기가 서로 다른 2종의 수산화알루미늄을 분산제와 함께 첨가하여 불연성을 부여한 수지조성물에 관하여 공개되어 있다. 또한 유럽특허 제0899092호에는 페놀수지 또는 멜라민수지에 수산화알루미늄 또는 수산화마그네슘을 첨가하여 불연성을 부여한 수지조성물에 관하여 공개되어 있다. 그러나 이러한 조성물은 무기물에 열경화성수지를 바인더 형태로 가공한 조성물이기 때문에 생산성이 크게 떨어지고, 유연성이 없어 벤딩(bending)이 전혀 불가능한 단점이 있다. 또한 수산화알루미늄을 사용한 경우 분해온도가 200℃정도 수준이어서 압출가공시 조기분해되는 문제가 있어 가공이 어려운 문제가 있다.On the other hand, Japanese Patent Application Laid-Open Nos. 2-182415, 10-76598 and 10-44323 disclose a resin composition in which two kinds of aluminum hydroxides having different particle sizes are added to a phenol resin together with a dispersant to impart incombustibility. have. In addition, European Patent No. 0899092 discloses a resin composition in which aluminum hydroxide or magnesium hydroxide is added to phenol resin or melamine resin to impart incombustibility. However, since the composition is a composition in which the thermosetting resin is processed in the form of a binder in the inorganic material, the productivity is greatly reduced, and there is no flexibility, thus no bending is possible. In addition, when aluminum hydroxide is used, the decomposition temperature is about 200 ° C., which causes a problem of early decomposition during extrusion.
또한, 일본특허공개 소55-44890호에는 폴리우레탄수지에 보락스와 펄라이트를 첨가하여 불연성을 부여한 수지조성물에 관하여 공개되어 있으나, 이 경우 폴리우레탄수지를 보락스, 펄라이트와 섞어주기 위해서 스프레이건을 사용해야 하는 등 전용설비가 필요해 경제적이지 못한 단점이 있다.In addition, Japanese Patent Application Laid-Open No. 55-44890 discloses a resin composition in which non-flammability is imparted by adding borax and pearlite to a polyurethane resin, but in this case, a spray gun must be used to mix the polyurethane resin with borax and pearlite. There is a disadvantage that it is not economical because a dedicated facility is required.
본 발명에서는 상기와 같은 종래 기술의 문제점을 해결한 것으로, 불연성을 증진시킴과 동시에 유연성이 개량되며, 전용설비의 필요없이 기존의 불연성 폴리올레핀수지 제조시 사용되는 일반압출기를 그대로 이용가능한 불연성 폴리올레핀 수지조성물을 제공함을 목적으로 한다.The present invention solves the problems of the prior art as described above, improves the non-flammability and at the same time improves the flexibility, non-combustible polyolefin resin composition that can be used as a conventional extruder used in the manufacture of existing non-combustible polyolefin resin without the need for dedicated equipment The purpose is to provide.
즉 본 발명은That is, the present invention
(1) 저밀도 폴리에틸렌 15∼25 중량%,(1) 15-25% by weight of low density polyethylene,
(2) 수산화마그네슘 65∼80 중량%, 및(2) 65 to 80% by weight of magnesium hydroxide, and
(3) 에틸렌계 불포화 카르복실산, 에틸렌계 불포화 카르복실산 언하이드라이드, 또는 에틸렌계 불포화 카르복실산 에스테르 단량체가 그라프트된 선형저밀도 폴리에틸렌 공중합체 20∼30 중량%, 그라프트되지 않은 선형저밀도 폴리에틸렌 15∼25 중량%, 에틸렌비닐아세테이트 30∼40 중량% 및 폴리스티렌 5∼15 중량%를 포함하는 상용화제 5∼10 중량% 를 포함하는 불연성 폴리올레핀 수지조성물에 관한 것이다.(3) 20-30% by weight of linear low density polyethylene copolymer grafted with ethylenically unsaturated carboxylic acid, ethylenically unsaturated carboxylic acid anhydride, or ethylenically unsaturated carboxylic acid ester monomer, linearly low density without grafting A nonflammable polyolefin resin composition comprising 5 to 10% by weight of a compatibilizer comprising 15 to 25% by weight of polyethylene, 30 to 40% by weight of ethylene vinyl acetate and 5 to 15% by weight of polystyrene.
이하에서 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명의 불연성 폴리올레핀 수지조성물은 저밀도 폴리에틸렌 15∼25 중량%, 수산화마그네슘 65∼80 중량% 및 상용화제 5∼10 중량%를 포함하여 구성된다.The nonflammable polyolefin resin composition of the present invention comprises 15 to 25% by weight of low density polyethylene, 65 to 80% by weight of magnesium hydroxide and 5 to 10% by weight of a compatibilizer.
상기와 같은 본원 발명은 에틸렌계 불포화 카르복실산, 에틸렌계 불포화 카르복실산 언하이드라이드 또는 에틸렌계 불포화 카르복실산 에스테르가 0.25 내지 5 중량% 그라프트된 선형저밀도 폴리에틸렌 공중합체, 비그라프트된 선형저밀도 폴리에틸렌, 에틸렌비닐아세테이트 및 폴리스티렌으로 구성된 상용화제를 사용하여 종래기술에 비하여 불연성 폴리올레핀수지 조성물의 유연성을 크게 향상시킨 것이 특징이다.The present invention as described above is a linear low density polyethylene copolymer grafted 0.25 to 5% by weight of ethylenically unsaturated carboxylic acid, ethylenically unsaturated carboxylic acid anhydride or ethylenically unsaturated carboxylic acid ester, grafted linear low density A compatibilizer composed of polyethylene, ethylene vinyl acetate and polystyrene is used to greatly improve the flexibility of the nonflammable polyolefin resin composition compared to the prior art.
상기에서 사용된 저밀도 폴리에틸렌은 밀도 0.89~0.925g/㎤, 용융지수 4~50 g/10분 범위 이내의 것이 사용되며, 그 함량은 15~25 중량%가 바람직하다. 15 중량% 보다 적을 경우 압출가공이 어렵고 유연성이 없으며, 25 중량% 보다 많을 경우에는 저밀도 폴리에틸렌이 가연성이므로 최종 조성물의 불연성이 급격히 저하되는 등의 문제점이 있다.Low-density polyethylene used in the above is a density of 0.89 ~ 0.925g / cm 3, the melt index is used within the range of 4 to 50 g / 10 minutes, the content is preferably 15 to 25% by weight. When less than 15% by weight, extrusion is difficult and there is no flexibility, and when more than 25% by weight, low density polyethylene is flammable, such that the incombustibility of the final composition is sharply lowered.
상기에서 사용된 수산화마그네슘은 입자크기가 1~10 ㎛인 것이 사용되며, 그 함량은 65~80 중량%가 바람직하다. 65 중량% 보다 적을 경우 원하는 불연성을 얻을 수 없으며, 80 중량% 보다 많을 경우에는 압출가공이 매우 어렵고 연속가공이 어려운 등의 문제점이 있다. 또한 수산화마그네슘의 입자크기도 중요한데, 입자크기가 1㎛보다 작을 경우 압출가공시 부하가 많이 걸려 생산성이 떨어지며, 10㎛보다 클 경우에는 수산화마그네슘의 표면적이 작아 불연성이 저하되는 문제점이 있다.Magnesium hydroxide used in the above is used that the particle size of 1 ~ 10 ㎛, the content is preferably 65 ~ 80% by weight. If less than 65% by weight can not obtain the desired non-combustibility, when more than 80% by weight there is a problem such as extrusion is very difficult and continuous processing is difficult. In addition, the particle size of magnesium hydroxide is also important, if the particle size is less than 1㎛ takes a lot of load during extrusion processing, productivity is reduced, if larger than 10㎛ there is a problem that the non-combustibility is reduced small surface area of magnesium hydroxide.
본 발명에서 사용되는 상용화제는 에틸렌계 불포화 카르복실산, 에틸렌계 불포화 언하이드라이드 또는 에틸렌계 불포화 에스테르 단량체가 폴리에틸렌 100 중량% 대비 0.25∼5 중량% 그라프트된 선형저밀도 폴리에틸렌 공중합체 20∼30 중량%, 그라프트되지 않은 선형저밀도 폴리에틸렌 15∼20 중량%, 비닐아세테이트 함량이 10∼20 중량%인 에틸렌비닐아세테이트 30∼40 중량% 및 폴리스티렌 5∼15 중량%로 구성된다.The compatibilizer used in the present invention is 20-30 weight of linear low density polyethylene copolymer in which ethylenically unsaturated carboxylic acid, ethylenically unsaturated anhydride, or ethylenically unsaturated ester monomer is grafted at 0.25 to 5% by weight with respect to 100% by weight of polyethylene. %, 15 to 20% by weight of grafted linear low density polyethylene, 30 to 40% by weight of ethylene vinyl acetate and 10 to 20% by weight of vinyl acetate, and 5 to 15% by weight of polystyrene.
상기 상용화제는 상기 그라프트된 선형저밀도 폴리에틸렌 공중합체, 그라프트되지 않은 선형저밀도 폴리에틸렌, 에틸렌비닐아세테이트 및 폴리스티렌을 이축압출기에서 용융혼련하여 제조가능하다.The compatibilizer may be prepared by melt kneading the grafted linear low density polyethylene copolymer, grafted linear low density polyethylene, ethylene vinyl acetate and polystyrene in a twin screw extruder.
본 발명의 조성물 중 상기 상용화제의 함량은 5~10 중량%가 바람직하다. 함량이 5 중량% 보다 적을 경우 본 발명에서 목적하는 유연성이 얻어지지 않아 최종조성물을 건자재용으로 가공후 곡면부위에 시공시 벤딩(bending)가공이 불가능하며, 10 중량%보다 많을 경우에는 유연성이 더이상 증가하지 않아서 상용화제가 고가인 점을 감안할 때 경제적이지 못하다.The content of the compatibilizer in the composition of the present invention is preferably 5 to 10% by weight. If the content is less than 5% by weight, the desired flexibility is not obtained in the present invention, and thus the bending is not possible during the construction of the final composition for the construction material, and bending is not possible when it is more than 10% by weight. Given that the compatibilizer is expensive because it does not increase, it is not economical.
본 발명에서 사용되는 상용화제 중 그라프트된 선형저밀도 폴리에틸렌 공중합체 성분에 대해 보다 자세히 설명하면 다음과 같다.The grafted linear low density polyethylene copolymer component of the compatibilizer used in the present invention will be described in more detail as follows.
상기 그라프트되는 단량체 성분 중에 포함되는 카르복실산의 예로는 에타크릴릭 에시드, 메타크릴릭에시드, 아크릴릭 에시드, 말레익 에시드,푸마릭에시드, 이타코닉에시드 등을 들 수 있다. 또한 에스테르 모노머의 예로는 글리시딜 메타크릴레이트, 2-하이드록시 에틸 아크릴레이트, 2-하이드록시 에틸 메타크릴레이트, 모노에틸 말리에이트, 디에틸 말리에이트, 디-노말-부틸 말리에이트 등을 들 수 있고, 언하이드라이드의 예로는 말레익 언하이드라이드, 도데시닐 숙시닉 언하이드라이드, 5-노보넨-2,3-언하이드라이드, 나딕 언하이드라이드 또는 이와 유사한 화학구조를 갖는 극성 화합물 등을 들 수 있다.Examples of the carboxylic acid included in the grafted monomer component include etacrylic acid, methacrylic acid, acrylic acid, maleic acid, fumaric acid, itaconic acid, and the like. Further examples of ester monomers include glycidyl methacrylate, 2-hydroxy ethyl acrylate, 2-hydroxy ethyl methacrylate, monoethyl maleate, diethyl maleate, di-normal-butyl maleate, and the like. Examples of the unhydrides include polar compounds having maleic unhydrides, dodecynyl succinic anhydrides, 5-norbornene-2,3- anhydrides, nadic unhydrides or similar chemical structures. Etc. can be mentioned.
상기와 같은 단랑체를 선형저밀도 폴리에틸렌 공중합체에 그라프트시키기 위하여 그라프트 반응 개시제를 사용가능하며, 이러한 그라프트 반응개시제로는 아실 퍼록사이드, 디알킬 또는 아르알킬 퍼록사이드, 퍼록시에스테르, 하이드로퍼록사이드, 케톤퍼록사이드, 아조화합물로 구성되는 군에서 선택된 1종 이상이 선택될 수 있다. 보다 구체적으로 상기 아실 퍼록사이드의 예로는 벤조일 퍼록사이드 등을 들 수 있으며, 디알킬 또는 아르알킬-퍼록사이드의 예로는 디-t-부틸퍼록사이드, 디큐밀퍼록사이드, 큐밀 부틸퍼록사이드, 1,1-디-t-부틸퍼록시-3,5,5,-트리메틸 사이클로 헥산, 2,5-디메틸-2,5,-디-t-부틸퍼옥시헥산, 비스(t-부틸퍼록시 이소프로필)벤젠 등을 들 수 있고, 퍼록시 에스테르의 예로는 t-부틸퍼록시 피발레이트, t-부틸 디(퍼프탈레이트), 디알킬 퍼록시 모노 카보네이트, 퍼록시 디카르보네이트, t-부틸 퍼벤조에이트, 2,5,-디메틸 헥실-2,5-디(퍼벤조에이트), t-부틸 퍼록토에이트 등을 들 수 있으며, 하이드로 퍼록사이드의 예로는 t-부틸하이드로 퍼록사이드, P-메탄 하이드로 퍼록사이드, 피난 하이드로 퍼록사이드, 큐멘 하이드로 퍼록사이드 등을 들 수 있으며, 케톤 퍼록사이드의 예로는 사이클로헥사논 퍼록사이드, 메틸에틸케톤 퍼록사이드 등을 들 수 있고, 아조화합물의 예로는 아조비스 이소부티로 니트릴 등을 들 수 있다. 상기 반응개시제의 사용시 그라프트 반응개시제의 분산도 개선을 위하여 다공성 폴리프로필렌 파우더에 5 중량% 수준으로 희석담지한 형태로 사용하는 것이 바람직하다.A graft reaction initiator may be used to graf the monolayer to the linear low density polyethylene copolymer, and such graft reaction initiator may be acyl peroxide, dialkyl or aralkyl peroxide, peroxyester, hydroper At least one selected from the group consisting of a lockside, a ketone peroxide, and an azo compound may be selected. More specifically, examples of the acyl peroxide include benzoyl peroxide, and the like, and examples of dialkyl or aralkyl peroxide include di-t-butyl peroxide, dicumyl peroxide, cumyl butyl peroxide, 1, 1-di-t-butylperoxy-3,5,5, -trimethyl cyclohexane, 2,5-dimethyl-2,5, -di-t-butylperoxyhexane, bis (t-butylperoxy isopropyl Benzene, etc., and examples of the peroxy ester include t-butylperoxy pivalate, t-butyl di (perphthalate), dialkyl peroxy monocarbonate, peroxy dicarbonate, t-butyl perbenzoate , 2,5, -dimethylhexyl-2,5-di (perbenzoate), t-butyl peroctoate, and the like, and examples of the hydroperoxide include t-butylhydro peroxide and P-methane hydroperoxide Said, evacuation hydro peroxide, cumene hydro peroxide, etc. are mentioned, Ketone perroxa Examples of the de-cyclohexadiene and the like non-peroxide, methyl ethyl ketone peroxide, examples of the azo compound and the like can be mentioned azobisisobutyronitrile. In order to improve the degree of dispersion of the graft reaction initiator when the reaction initiator is used, it is preferable to use it in the form of dilution supported at 5% by weight in the porous polypropylene powder.
그라프트되는 단량체는 폴리에틸렌 100중량% 대비 0.25~5.0 중량%, 더 좋게는 0.5~2.5 중량%가 첨가되는 것이 바람직하고, 개시제는 0.001~1.0 중량%, 더 좋게는 0.005~0.5 중량% 첨가되는 것이 바람직하다. 이외 극히 소량의 산화방지제,파라핀왁스 등의 첨가제가 사용될 수도 있다. 그라프트되는 단량체의 함량이 0.25 중량% 보다 적을 경우에는 상용성의 부여가 어려우며, 5.0 중량% 보다 많을 경우에는 반응효율이 떨어지고 변색이 심하게 일어나며 미반응 단량체가 과량 잔류하게 되는 등의 여러가지 문제가 발생된다. 또한, 개시제의 사용량이 0.001 중량% 보다 적으면 그라프팅 단량체의 기본수지에 대한 균일한 분산이 어려워 그라프팅 반응이 일어나기 어렵고, 1.0 중량% 보다 많으면 그라프팅 반응과 함께 기본수지의 가교화 반응이 심하게 일어나 용융흐름성이 나빠지고 겔발생이 심해지는 등 여러가지 문제점이 발생된다.The monomer to be grafted is preferably 0.25 to 5.0% by weight, more preferably 0.5 to 2.5% by weight, and preferably 0.001 to 1.0% by weight, more preferably 0.005 to 0.5% by weight, based on 100% by weight of polyethylene. desirable. In addition, very small amounts of additives such as antioxidants and paraffin wax may be used. If the content of the grafted monomer is less than 0.25% by weight, it is difficult to impart compatibility. If the content of the grafted monomer is more than 5.0% by weight, various problems such as poor reaction efficiency, discoloration occur, and excess unreacted monomer remain. . In addition, when the amount of the initiator is less than 0.001% by weight, it is difficult to uniformly disperse the graft monomer to the base resin, so that the grafting reaction is difficult to occur. This results in various problems such as poor melt flow and severe gel generation.
본 발명의 불연성 폴리올레핀 수지조성물은 다음과 같은 방법으로 제조된다. 민저 저밀도 폴리에틸렌과 상용화제를 반버리믹서에 넣고 140℃에서 용융시킨 후, 수산화마그네슘을 2회로 나누어 투입하고 160~190℃에서 혼합, 믹싱을 반복하여 수지조성물을 얻을 수 있다. 상기 성분 이외 소량의 산화방지제, 징크스테라이트(Zn-St)와 같은 분산제 등의 첨가제가 포함될 수 있다. 이와 같이 얻어진 불연성 폴리올레핀 수지조성물을 170~190℃의 일축압출기 또는 이축압출기에 통과시켜 펠렛상의 최종조성물을 제조할 수 있다.The nonflammable polyolefin resin composition of the present invention is prepared by the following method. After the low-density polyethylene and the compatibilizer are added to a Banbury mixer and melted at 140 ° C., magnesium hydroxide is added twice and mixed and mixed at 160 to 190 ° C. to obtain a resin composition. In addition to the above components, additives such as a small amount of an antioxidant and a dispersant such as zinc sterite (Zn-St) may be included. The resulting incombustible polyolefin resin composition can be passed through a single screw extruder or a twin screw extruder at 170 to 190 ° C. to produce a pelletized final composition.
이하 실시예를 통하여 본 발명을 좀더 상세하게 설명하고자 하나, 하기 실시예는 설명의 목적을 위한 것으로 본 발명을 제한하기 위한 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples. The following examples are provided for the purpose of explanation and are not intended to limit the present invention.
실시예 1 ~ 3Examples 1 to 3
말레익 언하이드라이드가 1.2 중량% 그라프트된 선형저밀도 폴리에틸렌 공중합체 30 중량%와 그라프트 되지 않은 선형저밀도 폴리에틸렌 20 중량%, 비닐아세테이트 함량이 15 중량%인 에틸렌비닐아세테이트 40 중량% 및 폴리스티렌 10 중량%를 이축압출기에서 용융혼련하여 본 발명의 상용화제(이하A라 표시함)를 제조하였다.30% by weight of linear low density polyethylene copolymer grafted with 1.2% by weight of maleic hydride, 20% by weight of grafted linear low density polyethylene, 40% by weight of ethylenevinylacetate with 15% by weight of vinyl acetate and 10% by weight of polystyrene % Was melt kneaded in a twin screw extruder to prepare a compatibilizer (hereinafter, referred to as A ) of the present invention.
표 1에 표시된 함량대로 저밀도 폴리에틸렌(밀도 0.920 g/㎤, 용융지수 40.0 g/10분)과 상기 상용화제(A)를 반버리믹서에 넣고 140℃ 용융시킨 후, 수산화마그네슘(입자크기 4.9㎛, 마그쉴드 S)을 2회로 나누어 투입하고 혼합하고, 일축압출기(50mmΦ)로 160~190℃ 온도범위에서 압출 및 제립하였다. 상기 수지조성물을 두께가 3mm인 시트(sheet)로 가공하고 접착성필름으로 두께 0.5mm인 알루미늄판과 열접착하여 전체두께 4mm의 알루미늄복합판넬 시편을 준비한 후, 이를 사용하여 KS F2271 규격으로 표면시험, 부가시험, 가스유해성시험을 행하였다. 또한 프레스 브레이크(press brake)를 이용하여 유연성을 평가하고 그 결과를 표 1에 나타내었다.After low-density polyethylene (density 0.920 g / cm 3, melt index 40.0 g / 10 min) and the compatibilizer ( A ) were put in a Banbury mixer and melted at 140 ° C. according to the contents shown in Table 1, magnesium hydroxide (particle size 4.9 μm, Magshield S) was divided into two times and mixed, and extruded and granulated at a temperature range of 160 to 190 ° C. with a single screw extruder (50 mmΦ). The resin composition was processed into a sheet having a thickness of 3 mm, and heat-bonded with an aluminum plate having a thickness of 0.5 mm with an adhesive film to prepare an aluminum composite panel specimen having a total thickness of 4 mm, and then used for surface test according to the KS F2271 standard. , Addition test, and gas hazard test were conducted. In addition, the press brake (press brake) was used to evaluate the flexibility and the results are shown in Table 1.
[물성측정 방법][Measurement of physical properties]
*표면시험Surface test
·시험방법: 가로 220mm, 세로 220mm의 시편에 부열원으로 3분간 가열후 주열원과 부열원에 의해 7분간 연속가열하고 이에 의한 용융, 균열, 변형, 잔류불꽃 평가 및 온도시간면적, 단위면적당 발연계수 측정Test method: After heating for 3 minutes with a sub-heat source on a specimen of 220 mm width and 220 mm length, it is continuously heated for 7 minutes by the main heat source and the sub-heat source, thereby melting, cracking, deformation, residual flame evaluation and temperature time area and smoke per unit area. Coefficient measurement
·판정기준: - 용융, 균열, 변형이 없을 것Judgment criteria:-No melting, cracking or deformation
- 잔류불꽃시간: 30초 이하-Remaining Flame Time: 30 seconds or less
- 시험시작후 3분내 표준온도곡선 초과하지 않을 것-The standard temperature curve should not exceed 3 minutes after the start of the test.
- 온도시간면적: 100 이하Temperature time area: 100 or less
- 단위면적당 발연계수: 60 이하-Coefficient of smoke per unit area: 60 or less
* 부가시험* Additional test
·시험방법: 지름 25mm인 구멍을 3개 뚫은 시편으로 표면시험과 동일한 방법으로 가열함Test method: A specimen with three holes of 25mm diameter is heated in the same way as the surface test.
·판정기준: - 온도시간면적: 150 이하Judgment criteria:-Temperature and time area: 150 or less
- 단위면적당 발연계수: 60 이하-Coefficient of smoke per unit area: 60 or less
- 잔류불꽃시간: 90초 이하-Remaining Flame Time: 90 seconds or less
* 가스유해성시험* Gas Hazard Test
·시험방법: 시편을 가열하여 발생된 연기속에서 5주령된 암놈흰쥐 8마리의 평균행동 정지시간을 측정함Test Method: Measure the average stop time of eight female rats 5 weeks old in the smoke generated by heating the specimen.
·판정기준: 평균행동정지시간이 9분보다 클 것Judgment criteria: Average duration of action shall be greater than 9 minutes
* 유연성 평가* Flexibility Assessment
·시험방법: 알루미늄복합판넬상 시편을 프레스 브레이크(press brake)를 이용하여 최대 얼마만큼 벤딩(bending)이 가능한지를 시험하고 이때 구부러진 원주의 반지름을 최소벤딩한계(Minimum bending limit)치로 계산함.Test Method: Test the maximum bending of the specimen on the aluminum composite panel using a press brake, and calculate the radius of the bent circumference as the minimum bending limit.
·판정기준: 벤딩후 원주의 반지름이 작을 수록, 즉 수치가 작을 수록 유연성이 우수한 것임.Judgment criteria: The smaller the radius of the circumference after bending, that is, the smaller the value, the better the flexibility.
* 압출가공성* Extrusion Processability
·일축압축기를 사용하여 시트(sheet) 가공시의 작업성을 판단하였다.-Workability at the time of sheet processing was judged using a single screw compressor.
비교예 1 ~ 5Comparative Examples 1 to 5
표 1에 표시된 함량대로 저밀도 폴리에틸렌(밀도 0.920g/㎤, 용융지수 40.0g/10분), 수산화마그네슘(입자크기 4.9㎛, 마그쉴드 S) 또는 수산화알루미늄(입자크기 3.0㎛,스미토모 C-303) 및 종래기술의 상용화제인 말레익 언하이드라이드가 1.2 중량% 그라프트된 선형저밀도 폴리에틸렌(이하B라함) 또는 말레익 언하이드라이드가 1.2 중량% 그라프트된 고밀도 폴리에틸렌(이하C라함)를 사용하여 실시예와 동일한 방법으로 실시하여 물성을 평가하였다. 그 결과를 표 1에 나타내었다.Low density polyethylene (density 0.920 g / cm 3, melt index 40.0 g / 10 min), magnesium hydroxide (particle size 4.9 μm, magshield S) or aluminum hydroxide (particle size 3.0 μm, Sumitomo C-303) as indicated in Table 1 And a linear low density polyethylene (hereinafter referred to as B ) grafted with 1.2 wt% maleic anhydride (hereinafter referred to as B ) or a high density polyethylene (hereinafter referred to as C ) grafted with maleic anhydride (hereinafter referred to as C ). It carried out by the same method as the example, and evaluated the physical property. The results are shown in Table 1.
본 발명에서는 상기와 같은 상용화제를 사용하여 수산화마그네슘을 다량 첨가시에도 유연성이 우수한 불연성 폴리올레핀 수지조성물을 제공하여 종래 기술의 불연성 폴리올레핀 수지조성물보다 제품의 벤딩가공성을 크게 향상시킬 수 있으며, 표면시험, 부가시험 등의 불연성 및 가스유해성시험 측면에서도 안정된 결과를 얻을 수 있다.In the present invention, by using a compatibilizer as described above, even when a large amount of magnesium hydroxide is added to provide a non-combustible polyolefin resin composition with excellent flexibility, it is possible to greatly improve the bending processability of the product than the non-combustible polyolefin resin composition of the prior art, surface test, Stable results can be obtained in terms of flammability and gaseous hazard tests such as additional tests.
Claims (5)
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| KR10-2000-0066423A KR100385369B1 (en) | 2000-11-09 | 2000-11-09 | incombustible polyolefin resinous composition |
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| KR10-2000-0066423A KR100385369B1 (en) | 2000-11-09 | 2000-11-09 | incombustible polyolefin resinous composition |
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| Publication Number | Publication Date |
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| KR20020036291A true KR20020036291A (en) | 2002-05-16 |
| KR100385369B1 KR100385369B1 (en) | 2003-05-27 |
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| KR10-2000-0066423A KR100385369B1 (en) | 2000-11-09 | 2000-11-09 | incombustible polyolefin resinous composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100375665B1 (en) * | 2000-12-19 | 2003-03-15 | 삼성종합화학주식회사 | Flame retardent polyolefine resine composition and method for manufacturing aluminum composite panel using thereof |
| KR100561556B1 (en) * | 2004-09-20 | 2006-03-17 | 삼성토탈 주식회사 | Incombustible polyolefin resin composition |
| WO2010008182A2 (en) * | 2008-07-14 | 2010-01-21 | (주)네오엑스테크 | Composition for an incombustible aluminum composite panel core |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839412A (en) * | 1986-11-25 | 1989-06-13 | E. I. Du Pont De Nemours And Company | Ethylene copolymer compositions |
| JPH02206632A (en) * | 1988-12-21 | 1990-08-16 | Nippon Petrochem Co Ltd | Flame-retardant polyolefin resin composition having improved surface haze properties |
| US5262467A (en) * | 1992-11-12 | 1993-11-16 | Union Carbide Chemicals & Plastics Technology Corporation | Flame retardant compositions |
| KR960006148B1 (en) * | 1992-12-14 | 1996-05-09 | 한화종합화학주식회사 | Flame-retardant resin composition for communication cable coating |
| US5288785A (en) * | 1993-06-14 | 1994-02-22 | Union Carbide Chemicals & Plastics Technology Corporation | Low voltage power cables |
| JPH10237237A (en) * | 1997-02-24 | 1998-09-08 | Sumitomo Electric Ind Ltd | Flame-retardant resin composition and electric wire or cable made by using the same |
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2000
- 2000-11-09 KR KR10-2000-0066423A patent/KR100385369B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100375665B1 (en) * | 2000-12-19 | 2003-03-15 | 삼성종합화학주식회사 | Flame retardent polyolefine resine composition and method for manufacturing aluminum composite panel using thereof |
| KR100561556B1 (en) * | 2004-09-20 | 2006-03-17 | 삼성토탈 주식회사 | Incombustible polyolefin resin composition |
| WO2010008182A2 (en) * | 2008-07-14 | 2010-01-21 | (주)네오엑스테크 | Composition for an incombustible aluminum composite panel core |
| WO2010008182A3 (en) * | 2008-07-14 | 2010-05-06 | (주)네오엑스테크 | Composition for an incombustible aluminum composite panel core |
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| Publication number | Publication date |
|---|---|
| KR100385369B1 (en) | 2003-05-27 |
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