KR102044338B1 - Heat resistant sheet for ship engine - Google Patents
Heat resistant sheet for ship engine Download PDFInfo
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- KR102044338B1 KR102044338B1 KR1020190116645A KR20190116645A KR102044338B1 KR 102044338 B1 KR102044338 B1 KR 102044338B1 KR 1020190116645 A KR1020190116645 A KR 1020190116645A KR 20190116645 A KR20190116645 A KR 20190116645A KR 102044338 B1 KR102044338 B1 KR 102044338B1
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Abstract
Description
본 발명은 선박 엔진용 내열시트에 관한 것으로서, 더욱 상세하게는 열원, 진동 및 소음을 차단함은 물론 난연효과를 구현하고 기계적 강도를 향상시킬 수 있도록 하면서 엔진의 구동으로 발생되는 소음을 감소시키면서 선박의 피로도를 최소화할 수 있는 선박 엔진용 내열시트에 관한 것이다.The present invention relates to a heat resistant sheet for a ship engine, and more particularly, to prevent heat source, vibration and noise, as well as to implement a flame retardant effect and to improve mechanical strength while reducing noise generated by driving of the ship. It relates to a heat resistant sheet for a ship engine that can minimize fatigue.
일반적으로 선박에서 야기될 수 있는 다양한 소음원은 선체의 외부 소음원과 선체의 내부 소음원으로 크게 구분할 수 있다. 외부 소음원은 파도와 바람 등으로 발생하는 소리이며, 내부 소음원은 엔진과 스크류 프로펠러(screw propeller) 및 각종 추진장치에서 발생되는 소음과 공기조절 장치와 통풍기구 및 냉동기로부터 나오는 환경설비의 소음 및 보행자의 발자국 소리 등을 예로 들 수 있다.In general, various sources of noise that may be caused by a ship can be classified into the external noise source of the hull and the internal noise source of the hull. External noise sources are sounds generated by waves and wind, etc. Internal noise sources are noises generated from engines, screw propellers and propulsion systems, noise from air conditioning devices, ventilators and freezers, and noise from pedestrians. For example, the sound of footprints.
선박은 소음과 진동적 측면에서 육상의 건축물이나 다른 운송기관에 비하여 추진동력이 크므로, 추진장치와 각종 기계 설비에서 일어나는 소음의 출력 또한 크게 발생된다.Since the ship has a large propulsion power in comparison with the buildings and other transportation systems on the ground in terms of noise and vibration, the output of the noise generated from the propulsion system and various mechanical facilities is also greatly generated.
또한 선박은 강재로 된 일체형 구조체로 이루어져 있으며, 선박에서 발생 되는 소음은 주로 철과 공간을 충진시키고 있는 공기를 통하여 전달될 수 있다.In addition, the vessel is composed of a steel integral structure, the noise generated from the vessel can be transmitted mainly through the air filling the iron and space.
즉, 선박은 주요 구성 부재들이 강재로 되어 있는 강판을 사용할 뿐만 아니라 화재발생 시 선체의 유지를 위하여 선실의 구조체도 메탈프레임(metal frame)으로 되어서 강판의 두께는 더욱 두꺼워지게 된다.That is, the vessel not only uses a steel sheet made of steel as a main component member, but also the structure of the cabin is also made of a metal frame in order to maintain the hull in case of fire, so that the thickness of the steel sheet becomes thicker.
이러한 선박의 경우, 선실 구조 및 형상에 따라, 엔진케이싱이 데크하우스를 관통하는 구조로 인해, 선실과 엔진케이싱이 근접해 위치하게 된다. 이 경우, 엔진케이싱에서 발생한 소음과 진동이 선실에 거의 그대로 전달되어 심각한 소음 및 진동의 문제가 발생한다.In the case of such a ship, the cabin and the engine casing are in close proximity due to the structure in which the engine casing penetrates the deckhouse, depending on the cabin structure and shape. In this case, the noise and vibration generated from the engine casing are almost transmitted to the cabin, causing serious noise and vibration problems.
이에 대하여, 종래에는 엔진케이싱으로부터 선실로 전달되는 진동 및/또는 소음을 줄이기 위해 버퍼존(buffer zone)을 추가로 두고 있다. 하지만 버퍼존은 활용할 수 없는 불필요한 공간이므로 선실의 공간 축소를 야기하면서 버퍼존의 배치에도 불구하고, 여전히 선실에 큰 소음과 진동이 전달되어, 거주구의 진동 및 소음규제를 만족시키기는 데에는 한계가 있었다. 또한 소음과 진동을 줄일 목적으로 차음 벽 패널이 데크 구조재와 분리된 상태로 이용되고 있지만, 차음 벽 패널이 갖는 차음 저감 특성만으로는 원하는 만큼의 소음 저감 효과를 얻기 어려웠다.In contrast, conventionally, a buffer zone is further provided to reduce vibration and / or noise transmitted from the engine casing to the cabin. However, because the buffer zone is an unnecessary space that cannot be utilized, despite the arrangement of the buffer zone while causing the space of the cabin to be reduced, there are still limitations in satisfying the vibration and noise regulation of the living quarters due to the large noise and vibration transmitted to the cabin. . In addition, although the sound insulation wall panel is used in a state in which it is separated from the deck structural material for the purpose of reducing noise and vibration, it is difficult to obtain the noise reduction effect as desired only by the sound insulation reduction characteristic of the sound insulation wall panel.
본 발명은 상기한 종래의 문제를 해결하기 위하여 연구 개발된 것으로서, 본 발명의 목적은 선박 엔진을 커버하는 엔진케이싱의 외부 표면에 부착하여 소음 및 진동을 효과적으로 저감시켜 우수한 열차단 및 방음효과를 발휘하며, 점착력이 뛰어나고, 내열성, 내후성, 전기 절연성, 방식성이 우수하며, 시공이 용이한 구조를 가지는 선박 엔진용 내열시트를 제공하는 것을 그 목적으로 한다.The present invention has been researched and developed in order to solve the above-mentioned conventional problems, and an object of the present invention is to attach to the outer surface of the engine casing covering a ship engine to effectively reduce noise and vibration to exhibit excellent heat shielding and soundproofing effect. It is an object of the present invention to provide a heat resistant sheet for ship engine having excellent adhesion, excellent heat resistance, weather resistance, electrical insulation, anticorrosion, and easy construction.
본 발명은 PVC분말 100중량부에 대해 점착성 바인더 100 ~ 200중량부, 섬유상 필러 5 ~ 20 중량부, 난연성 첨가제 5~20중량부, 충진재인 바텀애쉬 3 ~ 10중량부 및, 접합성 바인더(물유리) 3~5중량부의 중량비로 시트 조성물을 혼합한 후 압출하여 시트로 제작하고, 압축된 상기 시트를 가열 융착하여 발포 성형시켜 소정두께로 형성되는 선박 엔진용 내열시트를 제공한다.The present invention is 100 to 200 parts by weight of the adhesive binder, 5 to 20 parts by weight of fibrous fillers, 5 to 20 parts by weight of flame retardant additives, 3 to 10 parts by weight of bottom ash as a filler, and adhesive binder (water glass) After mixing the sheet composition in a weight ratio of 3 to 5 parts by weight and extruded to produce a sheet, and heat-sealed by compression molding the compressed sheet to provide a heat resistant sheet for a ship engine is formed to a predetermined thickness.
한편, 상기 PVC분말은, 수분 0.1 ~ 0.5 중량%, 입도가 40 ~ 100메쉬인 것으로 하는 선박 엔진용 내열시트를 제공한다.On the other hand, the PVC powder provides a heat resistant sheet for ship engines, the moisture of 0.1 to 0.5% by weight, the particle size of 40 to 100 mesh.
한편, 상기 점착성 바인더는, 폴리아마이드수지 및 에틸렌비닐아세테이트 공중합체수지를 1 : 0.1~0.6의 중량비로 혼합된 제1점착제와 아스팔트, 라텍스, 합성고무 중 선택된 어느 하나의 제2점착제를 1 : 0.1~0.4의 중량비로 혼합하여 포함하는 선박 엔진용 내열시트를 제공한다.On the other hand, the pressure-sensitive binder, the polyamide resin and the ethylene vinyl acetate copolymer resin 1: 1: 0.1 to 0.6 of any one of the second adhesive selected from the mixture of asphalt, latex, synthetic rubber in a weight ratio of 0.1 to 0.6: It provides a heat resistant sheet for ship engine containing a mixture in the weight ratio of ~ 0.4.
한편, 상기 섬유상 필러는, 식물성 필러 또는 합성섬유인 것으로 하는 선박 엔진용 내열시트를 제공한다.On the other hand, the fibrous filler provides a heat resistant sheet for a ship engine which is a vegetable filler or a synthetic fiber.
한편, 상기 난연성 첨가제는 발포 폴리에틸렌 알갱이, 발포 폴리우레탄 알갱이, 발포 폴리스티렌 알갱이 또는 압축 스티로폼 알갱이 중 선택되는 어느 하나의 인 것을 사용하는 선박 엔진용 내열시트를 제공한다.On the other hand, the flame retardant additive provides a heat resistant sheet for ship engines using any one selected from foamed polyethylene grains, foamed polyurethane grains, foamed polystyrene grains or compressed styrofoam grains.
한편, 상기 난연성 첨가제는 산성용액에 침지하여 건조시킨 후, 건조된 난연성 첨가제에 생석회, 소석회, 석회석, 탄산칼슘, 시멘트, 벤토나이트, 클레이(clay), 실리카, 실리케이트 및 돌로마이트로 이루어진 군에서 선택된 어느 하나 이상의 제1물질과 물을 0.01~0.5 : 1의 중량비로 혼합한 침지액에 침지시킨 다음 가열조에서 80~120℃의 가열온도로 3~5시간 동안 가열한 후 건조하여 사용하는 선박 엔진용 내열시트를 제공한다.Meanwhile, the flame retardant additive is immersed in an acidic solution and dried, and then any one selected from the group consisting of quicklime, hydrated lime, limestone, calcium carbonate, cement, bentonite, clay, silica, silicate and dolomite in the dried flame retardant additive. The above-mentioned first substance and water are immersed in an immersion liquid mixed in a weight ratio of 0.01 to 0.5: 1, and then heated in a heating bath at a heating temperature of 80 to 120 ° C. for 3 to 5 hours, and then dried and used for ship engine. Provide a sheet.
한편, 상기 접합성 바인더는 황화합물 또는 수산화화합물을 사용하며, 상기 수산화화합물은 수산화마그네슘 또는 수산화알루미늄인 것을 사용하는 선박 엔진용 내열시트를 제공한다.On the other hand, the adhesive binder uses a sulfur compound or a hydroxide compound, and the hydroxide compound provides a heat resistant sheet for a ship engine using a magnesium hydroxide or aluminum hydroxide.
한편, 상기 황화합물은 물유리, 황화나트륨, 황화칼륨, 황화암모늄, 황화알루미늄, 황화마그네슘, 황화아연 또는 황화철 중 어느 하나를 선택하여 사용하는 선박 엔진용 내열시트를 제공한다.On the other hand, the sulfur compound provides a heat resistant sheet for ship engine using any one of water glass, sodium sulfide, potassium sulfide, ammonium sulfide, aluminum sulfide, magnesium sulfide, zinc sulfide or iron sulfide.
한편, 상기 시트 조성물에 알루미늄 분말과 실리콘 분말이 1 : 0.1~0.6의 중량비로 혼합한 알루미늄 파우더를 PVC분말 100중량부에 대해 1.5~1.8중량부로 더 포함하는 선박 엔진용 내열시트를 제공한다.On the other hand, the aluminum sheet and the silicon powder in the sheet composition provides a heat resistant sheet for ship engine further comprises 1.5 to 1.8 parts by weight of aluminum powder mixed with a weight ratio of 1: 0.1 ~ 0.6 to 100 parts by weight of the PVC powder.
한편, PVC분말 100중량부에 대해 무기필러를 5~50중량부로 더 포함시키되, 상기 무기필러는 중공체 필러이며, 상기 중공체 필러는 퍼라이트 중공체, 알루미나 중공체, 플라이애쉬 중공체 또는 세라믹 중공체 중 선택되는 어느 하나인 것으로 하는 선박 엔진용 내열시트를 제공한다.Meanwhile, the inorganic filler may further include 5 to 50 parts by weight based on 100 parts by weight of the PVC powder, wherein the inorganic filler is a hollow filler, and the hollow filler is a perlite hollow body, an alumina hollow body, a fly ash hollow body or a ceramic hollow body. Provided is a heat resistant sheet for a ship engine, which is any one selected from sieves.
한편, PVC분말 100중량부에 대해 유기필러를 5~50중량부로 더 포함시키되, 상기 유기필러는 중공체 필러이며, 상기 중공체 필러는 폴리아크릴로니트릴(poly acrylonitrile)에 탄산칼슘 및 이산화티탄으로 코팅되어 있는 중공체 필러, 아크릴 중공체 필러, 실란 또는 실리콘계의 실란 화합물인 표면 발수제 또는 표면 불연제가 코팅된 중공체 필러로 이루어진 군으로부터 선택된 어느 하나인 것으로 하는 선박 엔진용 내열시트를 제공한다.Meanwhile, the organic filler is further included in an amount of 5 to 50 parts by weight based on 100 parts by weight of the PVC powder, wherein the organic filler is a hollow filler, and the hollow filler is made of calcium carbonate and titanium dioxide in polyacrylonitrile. Provided is a heat resistant sheet for a ship engine, which is any one selected from the group consisting of a coated hollow filler, an acrylic hollow filler, a silane or a silicone-based silane compound, or a hollow filler filled with a surface flame retardant.
한편, 상기 충진재에 발포수지에 팽창성 흑연분말을 사용하여 발포시킨 폐발포시트 분말을 더 포함하되, 상기 바텀애쉬의 총 중량부에 대하여 폐발포시트 분말 10~20 중량부로 혼합하는 선박 엔진용 내열시트를 제공한다.On the other hand, the filling material further comprises a waste foaming sheet powder foamed by using expandable graphite powder in the foaming resin, the heat-resistant sheet for ship engine mixing 10 to 20 parts by weight of the waste foaming sheet powder with respect to the total weight of the bottom ash To provide.
본 발명은 선박 엔진용 내열시트는 엔진에서 발생되는 열을 외부로 전이되는 것을 차단하는 방열성이 뛰어나며, 또한 소음, 진동을 효과적으로 저감시켜 우수한 방음효과를 발휘하며, 점착력이 뛰어나고, 내열성, 내후성, 전기 절연성, 방식성이 우수하며, 시공이 용이한 선박 엔진용 내열시트를 제시한다.The present invention is a heat resistant sheet for ship engine is excellent in heat dissipation to block the heat generated from the engine to the outside, and also to effectively reduce noise and vibration to exert excellent sound insulation effect, excellent adhesion, heat resistance, weather resistance, electricity The present invention provides a heat resistant sheet for ship engine with excellent insulation and corrosion resistance.
본 발명은 상기와 같은 목적을 달성하기 위한 본 발명의 선박 엔지용 내열시트는, 폴리비닐클로라이드(Polyvinyl Chloride: PVC)분말 100중량부에 대해 점착성 바인더 100 ~ 200중량부, 섬유상 필러 5 ~ 20중량부, 난연성 첨가제 5 ~ 20중량부, 충진재인 바텀애쉬 3 ~ 10중량부 및, 접합성 바인더인 물유리 3 ~ 5중량부의 중량비로 시트 조성물을 혼합한 후 압출하여 시트로 제작하고, 압축된 상기 시트를 가열 융착하여 발포 성형시켜 소정두께로 형성되는 선박 엔진용 내열시트를 제공한다.The present invention is a heat resistant sheet for ship engine of the present invention for achieving the above object, 100 to 200 parts by weight of the adhesive binder with respect to 100 parts by weight of polyvinyl chloride (PVC) powder, 5 to 20 parts by weight of fibrous fillers Part by mixing the sheet composition in a weight ratio of 5 to 20 parts by weight of a flame retardant additive, 3 to 10 parts by weight of bottom ash as a filler, and 3 to 5 parts by weight of water glass as a bonding binder, extruded to produce a sheet, and the compressed sheet The present invention provides a heat resistant sheet for a ship engine, which is formed by heat fusion and foam molding to have a predetermined thickness.
즉, 본 발명에 따른 PVC를 이용한 선박 엔진용 내열시트는 PVC분말, 점착성 바인더, 섬유상 필러, 난연성 첨가제, 충진재 및 접합성 바인더를 혼합한 후 압출기를 통해 시트로 제작하고, 압출된 상기 시트를 가열 융착하여 발포시켜 소정두께로 제작되는 것을 특징으로 한다.That is, the heat resistant sheet for a ship engine using PVC according to the present invention is made of a sheet through an extruder after mixing the PVC powder, adhesive binder, fibrous filler, flame retardant additives, filler and bonding binder, and heat-sealed the extruded sheet By foaming it is characterized in that the production to a predetermined thickness.
본 발명에 따른 바람직한 한 특징으로는, 상기 폴리비닐클로라이드(Polyvinyl Chloride: PVC)분말은, 수분 0.1 ~ 0.5 중량%, 입도가 60 ~ 100메쉬인 것을 특징으로 하며, 상기 PVC분말은 내구성과 내화학성 및 물리적 강도가 우수한 특성을 갖고 있는 것으로서 성형성이 뛰어나면서도 가벼운 특징을 갖으며, 이때 PVC분말은 연질, 경질 또는 연질과 경질을 혼합하여 사용하게 되며, 상기 연질 PVC분말과 경질 PVC분말을 혼합시 전체 PVC분말 총 중량부에 대하여 1 : 0.1~0.5의 중량비로 혼합하여 사용한다.According to one preferred feature of the present invention, the polyvinyl chloride (Polyvinyl Chloride (PVC)) powder is characterized in that the moisture of 0.1 to 0.5% by weight, the particle size of 60 to 100 mesh, the PVC powder is durable and chemical resistance And having excellent physical strength and excellent moldability and light characteristics, wherein the PVC powder is used by mixing soft, hard or soft and hard, and when the soft PVC powder and the hard PVC powder are mixed. It is used by mixing in a weight ratio of 1: 0.1 ~ 0.5 with respect to the total weight of PVC powder by weight.
그리고, 상기 경질의 PVC분말을 사용시 발포제를 첨가하게 되며, 상기 발포제는 경질의 PVC분말 총 중량부에 대하여 10~25중량부로 혼합하며, 상기한 시트 조성물이 시트로 성형과정에서 발포되게 하는 것으로, 발포에 의한 미세한 기포는 성형된 시트의 표면에 미세한 기공을 형성함으로서, 선박 엔진에서 발생되는 열원을 포집하여 외부로 발사되는 것을 방지할 뿐만 아니라 시트의 중량을 더욱 가볍게 하는 특성을 갖는 것이다.And, when using the hard PVC powder is added to the blowing agent, the blowing agent is mixed with 10 to 25 parts by weight relative to the total weight of the hard PVC powder, and the sheet composition to be foamed in the molding process, By forming fine pores on the surface of the molded sheet, the fine bubbles due to foaming not only trap heat sources generated in the ship engine, but also prevent them from being released to the outside, and have a lighter weight of the sheet.
그리고, 상기 연질의 PVC분말은 융착과정에서 용융되면서 사용량에 상관없이 경화가 되어도 유연하기 때문에 적용되는 시트의 변형을 일으키지 않으며, 또한 연질의 PVC분말의 열전도도가 0.2W/m·K 미만으로 선박 엔진에서 발생되는 열원을 외부로 전달되지 못하는 단열 성능을 부가시킬 수 있다.In addition, the soft PVC powder melts during the welding process and is flexible even if it is cured regardless of the amount of use, and does not cause deformation of the applied sheet, and the thermal conductivity of the soft PVC powder is less than 0.2 W / m · K. It is possible to add a thermal insulation performance that can not transfer the heat source generated from the engine to the outside.
또한, 상기 PVC분말의 총 중량부에 대하여 폴리비닐클로라이드(Polyvinyl Chloride: PVC)오니 분말을 10~40중량부로 혼합하여 사용할 수 있으며, 상기 PVC오니 분말은 레진 PVC 제조 공정에 의해 발생한 수처리장 오니를 수거하여 건조한 후 40~100메쉬의 입자로 분말화한 것을 사용하며, 성유상 필러 및 충진재와 함께 유기적인 결합으로 인해 제조비용의 절감 및 난연성을 부가하는 역할을 하게 된다.In addition, the polyvinyl chloride (Polyvinyl Chloride: PVC) sludge powder may be mixed to 10 to 40 parts by weight based on the total weight of the PVC powder, the PVC sludge powder is a water treatment plant sludge generated by the resin PVC manufacturing process After collecting and drying, it is powdered into particles of 40 ~ 100 mesh, and it plays a role of reducing manufacturing cost and flame retardancy due to organic bonding with oil-based filler and filler.
또한, 상기 PVC분말의 총 중량부에 대하여 염소화 폴리비닐클로라이드(Chlorinated Polyvinyl Chloride: CPVC)분말을 10 ~ 30중량부로 혼합 사용하며, 상기 CPVC분말은 염소의 함량을 높여 기존 PVC보다 열과 압력 부식에 견디는 성질이 강하여, 선박 엔진의 열원 및 엔진의 진동에 의해 심한 변형이 발생하는 시트에 난연성 및 완충성을 부가하는 역할을 한다.In addition, chlorinated polyvinyl chloride (CPVC) powder is used in an amount of 10 to 30 parts by weight based on the total weight of the PVC powder, and the CPVC powder increases the content of chlorine to withstand heat and pressure corrosion than conventional PVC. Because of its strong properties, it serves to add flame retardancy and cushioning properties to seats in which severe deformation occurs due to heat sources of ship engines and engine vibrations.
또한, 상기 PVC분말이 상기 PVC오니 분말과 CPVC분말을 혼합 사용하며, 이때 PVC오니 분말과 CPVC분말을 1:0.1~0.5의 중량비로 혼합한 혼합물을 PVC분말 총 중량비로 사용할 수 있다.In addition, the PVC powder is used to mix the PVC sludge powder and CPVC powder, wherein the mixture of PVC sludge powder and CPVC powder in a weight ratio of 1: 0.1 ~ 0.5 can be used as the total weight of the PVC powder.
그리고, 상기 점착성 바인더는 PVC분말을 시트화하기 위해 사용되는 주요 재료로서, PVC분말 100중량부에 대해 100 ~ 200중량부로 혼합하여 사용한다. 자체적으로 점착성을 가지고 있는 것을 사용하며, 이때 접착력, 높은 인장강도 및 신율의 특성을 가진 제1점착제와, 분산상태가 우수하고 고온에서도 재료 분리가 일어나지 않으며, 온도 변화에 대한 접착력이 강하고 경화 후의 성상이 충분한 인장강도와 신율을 가지고 있어 균열을 억제시키는 특성을 가진 제2점착제를 상호 혼합 사용하게 된다.In addition, the adhesive binder is used as a main material used to sheet the PVC powder, and is used by mixing 100 to 200 parts by weight based on 100 parts by weight of the PVC powder. It has a self-adhesive property, and at this time, the first adhesive having the characteristics of adhesion, high tensile strength and elongation, excellent dispersion state, no material separation at high temperature, strong adhesion to temperature change and properties after curing The second adhesive which has sufficient tensile strength and elongation and has the property of suppressing cracking is mixed with each other.
상기 점착성 바인더는, 폴리아마이드수지와 에틸렌비닐아세테이트 공중합체수지를 1 : 0.1~0.6의 중량비로 혼합된 제1점착제와 아스팔트, 라텍스, 합성고무 중 선택된 어느 하나의 제2점착제를 1 : 0.1~0.4의 중량비로 점착성 바인더 총 중량부로 혼합하여 사용하게 된다.The adhesive binder is a 1: 1 ~ 0.1 ~ 0.4 of any one selected from the first adhesive and asphalt, latex, synthetic rubber mixed with polyamide resin and ethylene vinyl acetate copolymer resin in a weight ratio of 1: 0.1 ~ 0.6. It is used by mixing to a total weight part of the adhesive binder in the weight ratio of.
그리고, 상기 섬유상 필러는 시트의 열유동성을 제어 및 시트 내의 결합력을 향상하는 것으로, 효과적인 재료로는 식물성 필러 또는 합성섬유를 분쇄 절단한 재료를 사용하며, 상기 식물성 필러는 줄기 섬유, 잎 섬유, 열매와 씨 섬유, 풀 섬유, 나무 섬유, 씨껍질 섬유 등의 식물성 섬유 또는 이로부터 추출된 셀룰로오스 섬유 중 선택되는 어느 하나일 수 있으며, 일 예로, 줄기 섬유로는 아마, 대마(삼), 저마(모시), 황마 등이 사용될 수 있고, 잎 섬유로는 사이살마(sisal), 마닐라삼, 파인애플, 바나나, 선인장, 대추야자 등이 사용될 수 있다. 그리고 열매와 씨 섬유로는 면화, 야자껍질, 기름야자나무 등이 사용될 수 있고, 풀 섬유는 짚, 대나무 등이 사용될 수 있다. 그리고 나무로는 연목(softwood), 경목(hardwood) 등이 사용될 수 있고, 씨껍질 섬유로는 다양한 종류의 씨껍질 섬유가 사용될 수 있다. 섬유상 필러는 그 외에 다양한 식물성 섬유 또는 셀룰로오스 섬유로 구성될 수 있다.In addition, the fibrous filler is to control the thermal fluidity of the sheet and to improve the bonding force in the sheet, an effective material is a material obtained by pulverizing and cutting the vegetable filler or synthetic fibers, the vegetable filler is a stem fiber, leaf fiber, fruit It may be any one selected from vegetable fibers such as seed fiber, grass fiber, wood fiber, seed hull fiber or cellulose fiber extracted therefrom. For example, the stem fiber may be flax, hemp (hemp), yam ), Jute, and the like, and leaf fibers may include sisal, manila hemp, pineapple, banana, cactus, date palm, and the like. The fruit and seed fibers may be cotton, palm bark, oil palm, etc., grass fibers may be straw, bamboo, and the like. In addition, softwood, hardwood, etc. may be used as the wood, and various types of seed skin fibers may be used as the seed skin fibers. The fibrous filler may be composed of various other vegetable fibers or cellulose fibers.
그리고, 상기 식물성 필러의 표면 및 표면으로부터 내부로 형성된 미세한 공극에 난연조성물이 충진된 상태로 건조된 식물성 필러를 사용할 수 있으며, 되므로, 상기 난연조성물은 아크릴계 수성 바인더와 인계 난연물질로 구성되며, 상기 인계 난연물질은 트리페닐포스페이트(triphenyl phosphate,TPP), 비스페놀 A-비스(디페닐 포스페이트)(bisphenol A-bis(dipheylphosphate), BDP), 멜라민포스페이트(melamine phosphate), 메틸포시포닉산(methylphosphonic acid), 알루미늄 하이드로메틸페닐-포스피네이트(aluminium hydroxymethylphenyl-phosphinate) 중 적어도 하나를 포함한다.In addition, the vegetable filler dried in a state where the flame retardant composition is filled in the pores formed from the surface and the surface of the vegetable filler may be used, and thus, the flame retardant composition is composed of an acrylic aqueous binder and a phosphorus flame retardant material. Phosphorus-based flame retardants include triphenyl phosphate (TPP), bisphenol A-bis (dipheylphosphate, BDP), melamine phosphate and methylphosphonic acid And at least one of aluminum hydroxymethylphenyl-phosphinate.
그리고, 상기 합성섬유는 아크릴, 나일론, 폴리에스테르 중 어느 하나를 사용한다.In addition, the synthetic fiber is any one of acrylic, nylon, polyester.
상기 섬유상 필러는 PVC분말 100중량부에 대해 5 ~ 20중량부를 사용하며, 섬유상 필러의 함량이 5중량부 미만은 시트의 유동성 제어 및 강성 보강 효과가 낮아 제품형상을 유지할 수 없으며, 20중량부를 초과할 경우는 융착 성능이 저하될 수 있다.The fibrous filler is used 5 to 20 parts by weight based on 100 parts by weight of PVC powder, the content of the fibrous filler is less than 5 parts by weight can not maintain the product shape due to the low flow control and rigidity reinforcing effect of the sheet, exceeding 20 parts by weight In this case, the welding performance may decrease.
그리고, 상기 난연성 첨가제는 시트조성물에 혼합되어 단열성, 경량성, 난연성 및 방음성을 가지도록 하며, 이때 상기 난연성 첨가제에 사용되는 알갱이의 평균 입자크기는 1 ~ 10㎛인 것을 사용하는 것이 좋으며 가장 바람직하기로는 2 ~ 3㎛인 것이 좋으며, 그 종류로는 발포 폴리에틸렌 알갱이, 발포 폴리우레탄 알갱이, 발포 폴리스티렌 알갱이 또는 압축 스티로폼 알갱이 중 선택되는 어느 하나를 사용하게 된다.In addition, the flame retardant additive is mixed with the sheet composition to have thermal insulation, light weight, flame retardancy and soundproofing, wherein the average particle size of the particles used in the flame retardant additive is preferably used 1 ~ 10㎛ and most preferably Is preferably 2 to 3 μm, and any one selected from among foamed polyethylene grains, foamed polyurethane grains, foamed polystyrene grains or compressed styrofoam grains is used.
또한, 상기 난연성 첨가제는 산성용액에 침지하여 건조시킨 후, 건조된 난연성 첨가제에 생석회, 소석회, 석회석, 탄산칼슘, 시멘트, 벤토나이트, 클레이(clay), 실리카, 실리케이트 및 돌로마이트로 이루어진 군에서 선택된 어느 하나 이상의 제1물질과 물을 0.01~0.5 : 1의 중량비로 혼합한 침지액에 침지시킨 다음 가열조에서 80~120℃의 가열온도로 3~5시간 동안 가열한 후 건조하여 사용하는 선박 엔진용 내열시트를 제공한다.In addition, the flame retardant additive is immersed in an acid solution and dried, and then any one selected from the group consisting of quicklime, hydrated lime, limestone, calcium carbonate, cement, bentonite, clay, silica, silicate and dolomite in the dried flame retardant additive The above-mentioned first substance and water are immersed in an immersion liquid mixed in a weight ratio of 0.01 to 0.5: 1, and then heated in a heating bath at a heating temperature of 80 to 120 ° C. for 3 to 5 hours, and then dried and used for ship engine. Provide a sheet.
상기 산성용액에 난연성 첨가제를 침지함으로서 난연성 첨가제의 표면 및 표면을 통한 내부로 미세 공극이 형성되며, 이때 사용되는 산성용액은 물에 산이 첨가되며, 상기 첨가되는 산은 젖산, 아세트산, 구연산, 호박산, 개미산 또는 염산으로 이루어진 군에서 선택되는 어느 하나 이상일 수 있으나 이에 제한되지 않는다.By immersing the flame retardant additive in the acid solution, fine pores are formed into and through the surface of the flame retardant additive. The acid solution used is an acid added to water, and the added acid is lactic acid, acetic acid, citric acid, succinic acid, formic acid. Or it may be any one or more selected from the group consisting of hydrochloric acid, but is not limited thereto.
상기 제1물질은 난연성 첨가제의 표면 및 내부로 형성된 미세 공극으로 스며들어 난연성 첨가제로부터 전도된 열원이 제1물질에 의해 열원을 포집함으로서 외부로 열확산을 차단하는 역할을 하게 되며, 이러한 제1물질이 난연성 첨가제의 공극으로 충진될 수 있도록 물과 함께 침지액을 제조하여 난연성 첨가제를 침지한 후 가열조에서 가열 후 건조된 상태의 난연성 첨가제를 시트조성물에 사용하게 된다.The first material penetrates into the micro voids formed on the surface and the inside of the flame retardant additive, so that the heat source conducted from the flame retardant additive traps the heat source by the first material to block heat diffusion to the outside. The immersion liquid is prepared together with water so as to be filled with voids of the flame retardant additive, the flame retardant additive is immersed, and the flame retardant additive in a dried state after heating in a heating bath is used for the sheet composition.
그리고, 상기 물 단독 사용 대신에 물과 함께 알콜을 혼합하여 사용할 수 잇으며, 상기 알콜은 에탄올, 메탄올 또는 이소프로판올 중 선택된 어느 하나의 알콜을 사용할 수 있으나 이에 제한되지 않는다.In addition, the alcohol may be mixed with water instead of using water alone, and the alcohol may be any alcohol selected from ethanol, methanol, or isopropanol, but is not limited thereto.
상기 산성용액으로 알콜과 물의 혼합용액을 사용하는 경우, 알콜의 부피비는 60% 내지 95%인 것이 바람직하며, 보다 바람직하게는 알콜의 부피비는 80% 내지 95%인 것이 바람직하다. 그리고 상기 알콜의 부피비가 60% 미만인 경우, 침지과정 중 과량의 물에 의해 제1물질의 겔화가 일어나거나 난연성 첨가제에 형성된 공극형태의 변형이 일어날 수 있다.When using a mixed solution of alcohol and water as the acid solution, the volume ratio of the alcohol is preferably 60% to 95%, more preferably the volume ratio of alcohol is 80% to 95%. When the volume ratio of the alcohol is less than 60%, gelation of the first material may occur due to excess water during the dipping process, or deformation of the pore form formed in the flame retardant additive may occur.
그리고 상기 침지과정 후 가열조에서 가열온도는 80℃ 내지 120℃인 것이 바람직하다.And after the immersion process, the heating temperature in the heating bath is preferably 80 ℃ to 120 ℃.
또한, 상기 물 또는 물과 알콜 혼합액 그리고 제1물질로 혼합된 침지액에 대하여 콜라겐 또는 젤라틴을 부가할 수 있으며, 상기 콜라겐 또는 젤라틴을 사용함으로서 난연성 첨가제의 공극에 스며든 제1물질의 접착성 및 난연성 첨가제의 자체의 내구성을 향상시키며, 게다가 상기 내열시트에 인장력이 가해지는 경우에도 난연성 첨가제가 변형되거나 손상되는 현상을 억제할 수 있는 물리적 물성(또는 내구성)을 확보할 수 있다.In addition, the collagen or gelatin may be added to the water or the immersion liquid mixed with the water and alcohol mixture and the first material, and the adhesiveness of the first material permeated into the pores of the flame retardant additive by using the collagen or gelatin and It improves the durability of the flame retardant additive itself, and can secure physical properties (or durability) that can suppress the deformation or damage of the flame retardant additive even when a tensile force is applied to the heat resistant sheet.
그리고, 상기 충진재는 10 ~ 50 μm의 입도를 가진 바텀애쉬로서 시트조성물에 3 ~ 10중량부로 포함되며, 상기 바텀애쉬는 고온의 연소과정에서 생성되어 고온에서 안정한 화합물이기 때문에 내화성이 있을 뿐만 아니라 기공률이 높아 단열성이 우수하며, 이러한 바텀애쉬를 시트조성물에 포함되어 내수성 및 내화성을 가지는 내열시트를 제조할 수 있다.In addition, the filler is included in the sheet composition as a bottom ash having a particle size of 10 ~ 50 μm 3 to 10 parts by weight, the bottom ash is not only fire-resistant but also porosity because it is a compound that is produced at high temperatures during the combustion process This high heat insulation is excellent, it is possible to produce a heat resistant sheet having water resistance and fire resistance by including the bottom ash in the sheet composition.
또한, 상기 충진재로 사용되는 바텀애쉬 외에 세라믹볼, 황토분말, 파라핀, PCM(Phase Change Material) 등의 잠열재, 금속으로 된 금속볼, 합성수지 분말이나 알갱이 등으로 이루어진 충진재가 사용될 수 있으며, 이러한 충진재는 잠열효율을 높이면서 상기 내열시트에 전달되는 충격음이나 진동을 흡수 저감 또는 완충시키는 역할을 한다.Further, in addition to the bottom ash used as the filler, a filler made of ceramic balls, ocher powder, paraffin, latent heat materials such as PCM (Phase Change Material), metal balls made of metal, synthetic resin powder or granules, etc. may be used. The role of reducing the absorption or shock absorbing shock or vibration transmitted to the heat-resistant sheet while increasing the latent heat efficiency.
또한, 상기 충진재는 발포수지에 팽창성 흑연분말을 사용하여 발포시킨 폐발포시트 분말을 더 포함하되, 상기 바텀애쉬의 총 중량부에 대하여 폐발포시트 분말 10 ~ 20 중량부로 혼합하는 선박 엔진용 내열시트를 제공한다.In addition, the filler further comprises a waste foaming sheet powder foamed by using the expandable graphite powder in the foaming resin, the heat-resistant sheet for ship engine mixing 10 to 20 parts by weight of the waste foaming sheet powder with respect to the total weight of the bottom ash To provide.
상기 발포수지는 발포 폴리스틸렌(expanded poly styrene), 발포 폴리에틸렌, 발포 폴리프로필렌 중 선택되는 하나 이상의 군에서 패창성 흑연분말을 포함하여 발포시켜 사용된 후 폐기되는 발포시트를 분말화한 폐발포시트 분말을 사용하며, 상기 충진재에 상기의 범위 내로 폐발포시트 분말이 혼합됨으로서 폐발포시트 분말로 하여금 내열시트에 대한 강도가 어느 정도 유지되면서도 내열시트로서의 방음효능 또한 기능을 유지하기 위함이다.The foamed resin comprises waste foamed sheet powder which is powdered foam sheet discarded after being used by foaming including foamed graphite powder in at least one group selected from expanded polystyrene, expanded polyethylene and expanded polypropylene. The waste foaming sheet powder is mixed with the filler within the above range so that the waste foaming sheet powder maintains the soundproofing effect as the heat resistant sheet while maintaining the strength of the heat resistant sheet to some extent.
그리고, 상기 접합성 바인더는 황화합물 또는 수산화화합물을 사용하며, 시트조성물에 3 ~ 5중량부로 혼합되어 사용된다.In addition, the binder binder is a sulfur compound or a hydroxide compound, and is used by mixing 3 to 5 parts by weight of the sheet composition.
상기 황화합물은 결합성, 내열성, 조막성 및 흡착성을 향상시키는 기능을 하며, 황화합물의 혼합량은 3 ~ 5중량부인 것이 바람직하다. 황화합물의 혼합량이 3 중량부 미만이 될 경우에는 상기 기능을 발현시킬 수 없으며, 황화합물의 혼합량이 5 중량부를 초과할 경우에는 성형 및 작업성이 떨어지는 단점이 있다.The sulfur compound has a function of improving the binding property, heat resistance, film formation and adsorption properties, the amount of the sulfur compound is preferably 3 to 5 parts by weight. When the amount of the sulfur compound is less than 3 parts by weight, the above function cannot be expressed. When the amount of the sulfur compound is more than 5 parts by weight, the molding and workability are poor.
상기 황화합물은 물유리, 황화나트륨, 황화칼륨, 황화암모늄, 황화알루미늄, 황화마그네슘, 황화아연 또는 황화철 중 어느 하나를 선택하여 사용하며, 상기 수산화화합물은 수산화마그네슘 또는 수산화알루미늄을 사용한다.The sulfur compound is selected from water glass, sodium sulfide, potassium sulfide, ammonium sulfide, aluminum sulfide, magnesium sulfide, zinc sulfide or iron sulfide, and the hydroxide compound is used magnesium hydroxide or aluminum hydroxide.
또한, 상기 시트 조성물에 알루미늄 분말과 실리콘 분말이 1 : 0.1~0.6의 중량비로 혼합한 혼합 파우더를 PVC분말 100중량부에 대해 1.5 ~ 1.8중량부로 더 포함하는 선박 엔진용 내열시트를 제공한다.In addition, the sheet composition provides a heat-resistant sheet for ship engine further comprises 1.5 to 1.8 parts by weight of the powder mixture of aluminum powder and silicon powder mixed in a weight ratio of 1: 0.1 ~ 0.6 to 100 parts by weight of the PVC powder.
상기 혼합 파우더는 알루미늄 분말과 실리콘 분말을 혼합 사용되며, 시트조성물의 시트 성형 후 가열 융착과정에서 알루미늄 분말이 PVC분말의 발포를 보조하여 팽창을 유도하며, 즉 PVC분말의 발포과정 중 발생되는 균열을 억제하면서 실리콘 분말 또한 이러한 균열을 억제하면서 점착성을 갖게 하는 역할을 한다.The mixed powder is used to mix the aluminum powder and silicon powder, the aluminum powder assists the foaming of the PVC powder in the heat fusion process after the sheet molding of the sheet composition to induce expansion, that is, cracks generated during the foaming process of the PVC powder While suppressing, the silicon powder also plays a role of making adhesiveness while suppressing such cracking.
또한, 상기 혼합 파우더에 스테아린산(Stearic Acid)과 메탄올을 혼합한 보조혼합액을 제조하여 시트조성물에 더 포함하여 사용될 수 있으며, 상기 보조혼합액을 사용함으로서 단독의 혼합 파우더를 시트조성물에 혼합 후 시트의 가열 융착과정에서 발생되는 미반응의 저융점 물질이 생성되며, 이에 이를 해결하고자 스테아린산과 메탄올이 반응하여 휘발하면서 열전달 공극이 형성되어 열침투성을 증대하여 혼합 파우더의 완전한 방응이 이루어지도록 한다.In addition, an auxiliary mixture prepared by mixing stearic acid (Stearic Acid) and methanol in the mixed powder may be further included in the sheet composition, and by mixing the sole mixed powder in the sheet composition by using the auxiliary mixture, the sheet is heated. The unreacted low melting point material generated during the fusion process is generated, and to solve this problem, stearic acid and methanol react with the volatilization to form heat transfer pores, thereby increasing heat permeability to achieve complete reaction of the mixed powder.
또한, 상기 시트조성물을 성형한 시트를 가열 융착과정을 거친 내열시트의 표면에 상술한 보조혼합액을 도포한 다음 120~180도의 온도에서 1시간~2시간 동안 가열여 내열시트 표면에 코팅유도면을 형성한 후, 상기 코팅유도면에 PMMA(Polymethlymethacrylate), PS(polystyrene), PC(polycarbonate), ABS(acrylonitrile butadiene styrene copolymer) 중 선택되는 어느 하나의 제2물질을 코팅하여 친수성 및 발수성을 가진 내열시트를 제조할 수 있다.In addition, after applying the above-described auxiliary mixture to the surface of the heat-resistant sheet subjected to the heat fusion process of the sheet formed by the sheet composition and then heated at a temperature of 120 ~ 180 degrees for 1 hour to 2 hours to form a coating induction surface on the surface of the heat resistant sheet After the formation, the heat-resistant sheet having hydrophilicity and water repellency by coating any one second material selected from polymethlymethacrylate (PMMA), polystyrene (PS), polycarbonate (PC), and acrylonitrile butadiene styrene copolymer (ABS) on the coating guide surface Can be prepared.
또한, 상기 PVC분말 100중량부에 대해 무기필러를 5 ~ 50중량부로 더 포함시키되, 상기 무기필러는 중공체 필러이며, 상기 중공체 필러는 퍼라이트 중공체, 알루미나 중공체, 플라이애쉬 중공체 또는 세라믹 중공체 중 선택되는 어느 하나인 것으로 하는 선박 엔진용 내열시트를 제공한다.In addition, 5 to 50 parts by weight of an inorganic filler is further included with respect to 100 parts by weight of the PVC powder, wherein the inorganic filler is a hollow filler, and the hollow filler is a perlite hollow body, an alumina hollow body, a fly ash hollow body or a ceramic Provided is a heat resistant sheet for a ship engine, which is any one selected from among hollow bodies.
상기 무기필러는 시트조성물의 강도 유지와 낮은 열전도를 위해서 단열성이 좋은 중공체 필러를 사용하였으며, 특히 내열시트의 경량화, 방음성능의 향상됨과 아울러 단열 및 내화성능을 향상시키기 위하여 중공체 필러를 사용하며, 그 조성 비율에 따라 밀도, 내화성, 열전도 및 압축강도를 조절할 수 있다.The inorganic filler uses a hollow filler having good thermal insulation for maintaining the strength of the sheet composition and low thermal conductivity, and in particular, the hollow filler is used to reduce the weight of the heat-resistant sheet and to improve sound insulation performance, and to improve insulation and fire resistance performance. The density, fire resistance, thermal conductivity and compressive strength can be adjusted according to the composition ratio.
또한, 상기 PVC분말 100중량부에 대해 유기필러를 5 ~ 50중량부로 더 포함시키되, 상기 유기필러는 중공체 필러이며, 상기 중공체 필러는 폴리아크릴로니트릴(poly acrylonitrile)에 탄산칼슘 및 이산화티탄으로 코팅되어 있는 중공체 필러, 아크릴 중공체 필러, 실란 또는 실리콘계의 실란 화합물인 표면 발수제 또는 표면 불연제가 코팅된 중공체 필러로 이루어진 군으로부터 선택된 어느 하나인 것으로 하는 선박 엔진용 내열시트를 제공한다.In addition, 5 to 50 parts by weight of an organic filler is further included with respect to 100 parts by weight of the PVC powder, wherein the organic filler is a hollow filler, and the hollow filler is calcium carbonate and titanium dioxide in poly acrylonitrile. It provides a heat-resistant sheet for a ship engine, which is any one selected from the group consisting of a hollow filler filled with a hollow filler, an acrylic hollow filler, a silane or a silicone-based silane compound, or a hollow filler coated with a surface flame retardant.
본 발명에 따른 일실시예로 PVC를 이용한 선박 엔진용 내열시트의 제조방법에 대하여 설명하면 다음과 같다.Referring to the manufacturing method of the heat resistant sheet for ship engine using PVC as an embodiment according to the present invention.
[실시예]EXAMPLE
우선, 각 재료를 중량에 맞게 혼합하여 반죽기를 통해 혼합시킨다. 본 발명의 일 실시예와 같이 PVC분말 100중량부에 대해 점착성 바인더로 폴리아마이드수지와 에틸렌비닐아세테이트 공중합체수지를 1 : 0.3의 중량비로 혼합된 제1점착제와 아스팔트의 제2점착제를 1 : 0.25의 중량비로 혼합하여 150중량부를 혼합하였다.First, each material is mixed by weight and mixed through a kneader. As an embodiment of the present invention, the first adhesive mixed with the polyamide resin and the ethylene vinyl acetate copolymer resin in a weight ratio of 1: 0.3 by means of an adhesive binder with respect to 100 parts by weight of the PVC powder is 1: 0.2. 150 parts by weight of the mixture was mixed at a weight ratio of.
여기에 섬유상 필러를 합성섬유의 폴리에스테르섬유를 사용하여 PVC분말 100중량부에 대해 20중량부를 혼합하고, 난연성 첨가제인 압축 스티로폼 알갱이를 PVC분말 100중량부에 대해 15중량부와 충진재인 바텀애쉬를 8중량부 그리고 접합성 바인더인 물유리를 4중량부를 혼합하였다.20 parts by weight of the fibrous filler was mixed with 100 parts by weight of the PVC powder using polyester fibers of synthetic fibers, and 15 parts by weight of the compressed styrofoam granule, which is a flame retardant additive, was added to 100 parts by weight of the PVC powder, and bottom ash as a filler. 8 parts by weight and 4 parts by weight of water glass as a bonding binder were mixed.
위 실시예와 같이 원료를 각 혼합비에 맞게 반죽기에 넣고 혼합 한 후 압출기 및 압연롤을 통하여 2mm 두께의 시트로 제작한다. 시트로 제작 후에는 발포 성형하게 되는데, 본 발명에 따른 일 실시예로 150도에서 30분간 융착시켜 발포 성형함으로써 4mm 두께의 내열시트를 얻게 되었다.The raw materials are put into the kneader according to the mixing ratio as described in the above embodiment and then mixed into an extruder and a rolling roll to produce a sheet having a thickness of 2 mm. After the production of the sheet is foamed, but in one embodiment according to the present invention by fusion molding at 150 degrees for 30 minutes to obtain a heat-resistant sheet of 4mm thickness.
[비교예][Comparative Example]
유리섬유를 주재로 하는 두께가 2.5㎜이고, 밀도는 80 ~ 200kg/㎥인 유리매트의 양면에 탈크과 에어로젤이 혼합된 비표면적이 100 ~ 1000㎡/g이고, 평균입경은 1㎜ 이하인 세라믹분말을 고형분 함량 기준 20중량% 함유하는 바인더로 구성된 조액을 함침하여 세라믹분말이 고착된 내열매트를 사용하였다.Ceramic powder whose thickness is 2.5 mm and the specific surface area of talc and airgel mixed on both sides of the glass mat with a thickness of 2.5 mm and the density is 80 to 200 kg / m 3 and the average particle diameter is 1 mm or less. A heat-resistant mat having a ceramic powder fixed thereto was used by impregnating a crude liquid composed of a binder containing 20% by weight of solids.
상기 실시예 및 비교예에 따른 내열시트와 내열매트의 ASTM D 5470에 따라 측정에 따른 열전도율과 내열성을 측정한 결과, 비교예의 내열매트의 열전달율은 80℃에서 0.066W/(K.m)이며, 본 발명의 내열시트 실시예를 측정한 결과, 열전달율이 0.057W/(K.m)로 비교예 대비 약 13.6%의 열전달율이 떨어졌으며, 즉 내열 성능이 13.6% 향상되었음을 실험결과를 통해 얻을 수 있었다.As a result of measuring the thermal conductivity and the heat resistance according to the measurement according to ASTM D 5470 of the heat-resistant sheet and heat-resistant mat according to the Examples and Comparative Examples, the heat transfer rate of the heat-resistant mat of the Comparative Example is 0.066W / (Km) at 80 ℃, the present invention As a result of measuring the heat-resistant sheet example of the heat transfer rate of 0.057W / (Km) was about 13.6% of the heat transfer rate compared to the comparative example, that is, it was obtained through the experimental results that the heat resistance was improved by 13.6%.
이상, 본 발명의 원리를 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 그와 같이 도시되고 설명된 그대로의 구성 및 작용으로 한정되는 것이 아니다.While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described.
오히려, 첨부된 청구범위의 사상 및 범주를 일탈함이 없이 본 발명에 대한 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서 그러한 모든 적절한 변경 및 수정과 균등물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.
Claims (8)
상기 섬유상 필러는 식물성 필러 또는 합성섬유를 분쇄 절단한 재료를 사용하며,
상기 식물성 필러는 줄기 섬유, 잎 섬유, 열매와 씨 섬유, 풀 섬유, 나무 섬유, 씨껍질 섬유 등의 식물성 섬유 또는 이로부터 추출된 셀룰로오스 섬유로 이루어진 군에서 적어도 어느 하나를 선택한 식물성 필러의 표면 및 표면으로부터 내부로 형성된 미세한 공극에 아크릴계 수성 바인더와 트리페닐포스페이트(triphenyl phosphate,TPP), 비스페놀 A-비스(디페닐 포스페이트)(bisphenol A-bis(dipheylphosphate), BDP), 멜라민포스페이트(melamine phosphate), 메틸포시포닉산(methylphosphonic acid), 알루미늄 하이드로메틸페닐-포스피네이트(aluminium hydroxymethylphenyl-phosphinate) 중에서 적어도 하나를 선택된 인계 난연물질로 구성된 난연조성물이 충진된 상태로 건조된 식물성 필러를 사용하며,
상기 합성섬유는 아크릴, 나일론, 폴리에스테르 중 어느 하나를 선택하여 사용되는 것을 특징으로 하는 선박 엔진용 내열시트.The method of claim 1,
The fibrous filler uses a material obtained by pulverizing vegetable fillers or synthetic fibers,
The vegetable filler is the surface and the surface of the vegetable filler selected from at least one selected from the group consisting of plant fibers such as stem fibers, leaf fibers, fruit and seed fibers, grass fibers, wood fibers, seed skin fibers or cellulose fibers extracted therefrom Acrylic aqueous binder and triphenyl phosphate (TPP), bisphenol A-bis (diphenyl phosphate) (BDP), melamine phosphate, methyl Using a vegetable filler dried with a flame retardant composition composed of phosphorus-based flame retardant material selected from at least one selected from polyphosphonic acid and aluminum hydroxymethylphenyl-phosphinate.
The synthetic fiber is a heat resistant sheet for ship engines, characterized in that used to select any one of acrylic, nylon, polyester.
상기 난연성 첨가제는 알갱이의 평균 입자크기는 1 ~ 10㎛인 발포 폴리에틸렌 알갱이, 발포 폴리우레탄 알갱이, 발포 폴리스티렌 알갱이 또는 압축 스티로폼 알갱이 중 선택되는 어느 하나의 난연성 첨가제를 산성용액에 침지하여 건조시킨 후, 건조된 난연성 첨가제에 생석회, 소석회, 석회석, 탄산칼슘, 시멘트, 벤토나이트, 클레이(clay), 실리카, 실리케이트 및 돌로마이트로 이루어진 군에서 선택된 어느 하나 이상의 제1물질과 물을 0.01~0.5 : 1의 중량비로 혼합한 침지액에 침지시킨 다음 가열조에서 80~120℃의 가열온도로 3~5시간 동안 가열한 후 건조하여 사용하는 것을 특징으로 하는 선박 엔진용 내열시트.The method of claim 1,
The flame retardant additive is dried by drying the flame retardant additive selected from expanded polyethylene granules, expanded polyurethane granules, expanded polystyrene granules, or compressed styrofoam granules having an average particle size of granules of 1 to 10 μm in an acidic solution, followed by drying. Mixed at least one first material selected from the group consisting of quicklime, hydrated lime, limestone, calcium carbonate, cement, bentonite, clay, silica, silicate and dolomite with water in a weight ratio of 0.01 to 0.5: 1 A heat resistant sheet for a ship engine, characterized in that the immersion in one immersion liquid and then heated for 3 to 5 hours at a heating temperature of 80 ~ 120 ℃ in a heating bath to dry.
상기 충진재는 발포수지에 팽창성 흑연분말을 사용하여 발포시킨 폐발포시트 분말을 더 포함하되, 상기 바텀애쉬의 총 중량부에 대하여 발포 폴리스틸렌(expanded poly styrene), 발포 폴리에틸렌, 발포 폴리프로필렌 중 선택되는 하나 이상의 군에서 패창성 흑연분말을 포함하여 발포 후 폐기되는 발포시트를 분말화한 폐발포시트 분말 10 ~ 20 중량부로 혼합하는 것을 특징으로 하는 선박 엔진용 내열시트.The method of claim 1,
The filler further comprises a waste foamed sheet powder foamed using expandable graphite powder in the foamed resin, one selected from the group consisting of expanded polystyrene, expanded polyethylene, expanded polypropylene based on the total weight of the bottom ash A heat resistant sheet for a ship engine, comprising mixing 10 to 20 parts by weight of powdered waste foaming sheet powder including foamed graphite powder in the above group.
상기 접합성 바인더는 물유리, 황화나트륨, 황화칼륨, 황화암모늄, 황화알루미늄, 황화마그네슘, 황화아연 또는 황화철 중 어느 하나를 선택한 황화합물 또는 수산화화합물을 사용하며, 상기 수산화화합물은 수산화마그네슘 또는 수산화알루미늄을 사용하는 것을 특징으로 하는 선박 엔진용 내열시트.The method of claim 1,
The bonding binder may use a sulfur compound or a hydroxide compound selected from water glass, sodium sulfide, potassium sulfide, ammonium sulfide, aluminum sulfide, magnesium sulfide, zinc sulfide, or iron sulfide, and the hydroxide compound may use magnesium hydroxide or aluminum hydroxide. Heat resistant sheet for ship engine, characterized in that.
상기 PVC분말 100중량부에 대해 무기필러를 5 ~ 50중량부로 더 포함시키되, 상기 무기필러는 퍼라이트 중공체, 알루미나 중공체, 플라이애쉬 중공체 또는 세라믹 중공체 중 선택되는 어느 하나의 중공체 필러를 사용하는 것을 특징으로 하는 선박 엔진용 내열시트.The method of claim 1,
The inorganic filler may be further included in an amount of 5 to 50 parts by weight based on 100 parts by weight of the PVC powder, wherein the inorganic filler includes any one of hollow fillers selected from a ferrite hollow body, an alumina hollow body, a fly ash hollow body or a ceramic hollow body. Heat resistant sheet for ship engine, characterized in that used.
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| KR1020190116645A KR102044338B1 (en) | 2019-09-23 | 2019-09-23 | Heat resistant sheet for ship engine |
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| CN111689789A (en) * | 2020-05-29 | 2020-09-22 | 东南大学 | Inorganic cemented polystyrene foam insulation board and preparation method thereof |
| CN116535144A (en) * | 2023-05-12 | 2023-08-04 | 广东晶通公路工程建设集团有限公司 | Composite material for semi-flexible pavement and pavement construction method |
| GB2619366A (en) * | 2022-05-31 | 2023-12-06 | Newall Plant Ltd | Building Materials and Method of Production thereof |
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| CN116535144B (en) * | 2023-05-12 | 2024-05-17 | 广东晶通公路工程建设集团有限公司 | Composite material for semi-flexible pavement and pavement construction method |
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