KR101335211B1 - Manufacturing composition for reflect sheet and reflect sheet prepared thereby - Google Patents

Manufacturing composition for reflect sheet and reflect sheet prepared thereby Download PDF

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KR101335211B1
KR101335211B1 KR1020130095663A KR20130095663A KR101335211B1 KR 101335211 B1 KR101335211 B1 KR 101335211B1 KR 1020130095663 A KR1020130095663 A KR 1020130095663A KR 20130095663 A KR20130095663 A KR 20130095663A KR 101335211 B1 KR101335211 B1 KR 101335211B1
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composition
flame retardant
reflective sheet
titanium dioxide
manufacturing
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KR1020130095663A
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Korean (ko)
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이소현
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이소현
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/16—Covers for frames; Frameless shades characterised by the material
    • F21V1/22—Covers for frames; Frameless shades characterised by the material the material being plastics
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The present invention relates to a composition for manufacturing a reflection sheet, more specifically, a composition for manufacturing a reflection sheet including a polypropylene resin, TiO2, a diffusing agent, and a flame retardant and a reflection sheet manufactured by using the composition.

Description

반사시트 제조용 조성물 및 이에 의해 제조되는 반사시트{MANUFACTURING COMPOSITION FOR REFLECT SHEET AND REFLECT SHEET PREPARED THEREBY}A composition for manufacturing a reflective sheet and a reflective sheet produced by the same {MANUFACTURING COMPOSITION FOR REFLECT SHEET AND REFLECT SHEET PREPARED THEREBY}

본 발명은 반사시트 제조용 조성물 및 이에 의해 제조되는 반사시트에 관한 것이다.
The present invention relates to a composition for producing a reflective sheet and a reflective sheet produced thereby.

일반적으로 반사갓은 그 형상에 따라 광을 한 곳으로 집중시켜 주기 위한 집광형 반사갓(Elliptical focus type), 집광형 반사갓보다 부드럽고 균일한 광도를 얻기 위한 평형광형 반사갓(Paralled type), 그리고 형광등과 같이 광이 넓게 확산시켜 주기 위한 분산광형 반사갓(Diffuse type)으로 대별된다. 또한, 반사갓은 사용되는 재질에 따른 분류로는 실버 필름(Silver Film) 반사갓과 알루미늄 필름 반사갓 그리고 알루미늄 반사갓으로 구분할 수 있다. 하지만, 이러한 반사갓들은 실버 필름이나 알루미늄 필름을 금속판에 접착하거나 알루미늄을 금속 표면 등에 코팅하여 제작하였다. 이는 금속판을 기재로 하여 제작되기 때문에 반사갓의 전체 중량이 많이 나가게 될 뿐만 아니라 반사갓의 형상을 성형하는데에도 어려움이 있었다.In general, the reflector has an elliptical focus type for focusing light in one place according to its shape, a parallel type reflector for obtaining a softer and more uniform brightness than the condensed reflection lamp, and a fluorescent lamp. It is roughly classified into a diffused light reflector for diffusing widely. In addition, the reflector may be classified into a silver film reflector, an aluminum film reflector, and an aluminum reflector according to a material used. However, these reflection shades were manufactured by bonding a silver film or an aluminum film to a metal plate or coating aluminum on a metal surface. Since it is manufactured based on a metal plate, the total weight of the reflection shade is not only high but also there is a difficulty in forming the shape of the reflection shade.

근래에 들어서, 이러한 금속판을 기재로 하여 제작되기 때문에 중량이 많이 나가고 제작에 어려움이 있던 문제점을 해결하기 위하여 플라스틱 수지를 이용한 반사갓 또는 반사시트에 대한 연구와 개발이 진행되고 있다. 플라스틱 수지를 이용한 반사시트(또는 반사갓)는 폴리프로필렌 수지에 이산화티타늄(TiO2)을 혼합하여 제작하였다. 여기서, 이산화티타늄은 반사효율을 높이기 위하여 백색을 내기 위하여 사용되는 것으로, 그 함량에 따라 반사율이 결정된다. 대한민국 공개특허 10-2007-0072325호(2007.07.04. 공개)에는 광반사성 및 난연성이 우수한 폴리카보네이트 수지 조성물에 관한 것으로, 충격보강제, 자외선 흡수제, 이종 난연제, 내광성 및 유동성 유지를 위한 물질 등을 첨가함으로써 내충격성, 광반사성, 내광성 및 난연성이 우수할 뿐만 아니라 작업성, 외관 등의 물성 밸런스 또한 우수한 폴리카보네이트 수지 조성물을 개시하고 있다. 그러나 이산화티타늄을 함유한 조성물로 제조되는 경우 이산화티타늄의 함량이 증가되어 혼합이 일정하게 되지 않아 반사율이 일정하지 않을 뿐만 아니라 반사시트 제조가 용이하지 않은 문제가 있다.
In recent years, in order to solve the problem of heavy weight and difficulty in manufacturing because it is manufactured based on such a metal plate, research and development of a reflection shade or a reflective sheet using a plastic resin is in progress. The reflection sheet (or reflection shade) using the plastic resin was produced by mixing titanium dioxide (TiO 2 ) with a polypropylene resin. Here, titanium dioxide is used to give white to increase the reflection efficiency, the reflectance is determined according to the content. Republic of Korea Patent Publication No. 10-2007-0072325 (2007.07.04.published) relates to a polycarbonate resin composition excellent in light reflectivity and flame retardancy, impact reinforcing agent, ultraviolet absorbents, heterogeneous flame retardant, adding materials for maintaining light resistance and fluidity, etc. By doing so, the present invention discloses a polycarbonate resin composition which is excellent in impact resistance, light reflection property, light resistance and flame retardancy, as well as in balance between physical properties such as workability and appearance. However, when the composition is made of a composition containing titanium dioxide, the content of titanium dioxide is increased so that the mixing is not constant, the reflectance is not constant, and there is a problem in that the manufacturing of the reflective sheet is not easy.

본 발명의 목적은 반사성능 향상과 함께 난연성을 향상시킬 수 있는 반사시트 제조용 조성물 및 이에 의해 제조되는 반사시트를 제공하는데 있다.
SUMMARY OF THE INVENTION An object of the present invention is to provide a composition for manufacturing a reflection sheet which can improve flame retardancy together with a reflection performance improvement, and a reflection sheet manufactured thereby.

상기 과제를 해결하기 위해, 본 발명은 폴리프로필렌 수지, 이산화티타늄(TiO2), 확산제 및 난연제를 포함하는 반사시트 제조용 조성물을 제공한다.In order to solve the above problems, the present invention provides a composition for manufacturing a reflection sheet comprising a polypropylene resin, titanium dioxide (TiO 2 ), a diffusing agent and a flame retardant.

또한, 본 발명은 폴리프로필렌 수지, 이산화티타늄(TiO2), 확산제 및 난연제를 포함하는 반사시트 제조용 조성물로 제조되는 반사시트를 제공한다.
The present invention also provides a reflecting sheet made of a composition for manufacturing a reflecting sheet comprising a polypropylene resin, titanium dioxide (TiO 2 ), a diffusing agent and a flame retardant.

본 발명의 반사성능 및 난연성능을 향상시킬 수 있는 조성물 및 이에 의해 제조되는 반사시트에 따르면 다음과 같은 효과가 있다.According to the composition capable of improving the reflection performance and the flame retardant performance of the present invention and the reflection sheet manufactured thereby, the following effects are obtained.

(1) 확산제와 함께 난연제를 첨가하더라도 이산화티타늄의 함량을 늘일 수 있을 뿐만 아니라 기존의 반사 효율과 거의 유사한 반사율을 얻을 수 있다(90 - 97%).(1) Adding a flame retardant together with a diffusing agent not only increases the content of titanium dioxide, but also obtains a reflectance almost similar to the existing reflection efficiency (90-97%).

(2) 특히, 반사효율을 저하시키지 않으면서도 난연제를 10 - 30 중량%를 더 포함시킬 수 있게 되어 불연 효과를 더욱 높일 수 있게 된다. 이에 반사갓 등으로 사용하더라도 화재의 위험을 줄일 수 있게 된다.(2) In particular, it is possible to further include a flame retardant 10-30% by weight without lowering the reflection efficiency, thereby further increasing the non-combustible effect. Therefore, even if used as a reflection shade can reduce the risk of fire.

(3) 난연성능을 위한 별도의 구성없이도 반사성능을 유지할 수 있기 때문에 반사성능 대비 반사시트 등을 가볍고 쉽게 제작하여 사용할 수 있다.(3) Because the reflection performance can be maintained without a separate configuration for flame retardant performance, it is possible to manufacture and use a lighter and lighter reflection sheet compared to the reflection performance.

(4) 폴리프로필렌 수지를 기재로 하여 이루어진 조성물을 압출과 사출 등의 방법으로 반사시트를 제작하기 때문에 다양한 형태나 복잡한 형상도 쉽게 제조하여 사용할 수 있다.
(4) Since a reflective sheet is produced by extrusion or injection of a composition based on polypropylene resin, various forms and complex shapes can be easily produced and used.

이하, 본 발명의 바람직한 실시예를 보다 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, preferred embodiments of the present invention will be described in more detail. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

따라서 본 명세서에 기재된 실시예에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.
Therefore, the constitutions shown in the embodiments described herein are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents which can be substituted at the time of application It should be understood that variations can be made.

본 발명은 폴리프로필렌 수지, 이산화티타늄(TiO2), 확산제 및 난연제를 포함하는 반사시트 제조용 조성물을 제공한다.The present invention provides a composition for manufacturing a reflection sheet comprising a polypropylene resin, titanium dioxide (TiO 2 ), a diffusing agent and a flame retardant.

본 발명에 따른 반사시트 제조용 조성물은 폴리프로필렌 수지에 확산제를 첨가하여 폴리프로필렌 수지 내에 이산화티타늄을 고르게 확산시킬 수 있고 난연제를 포함함으로써, 난연성능을 동시에 향상시킬 수 있다. 또한, 본 발명에 따른 반사시트 제조용 조성물을 이용하여 제조된 반사시트는 이산화티타늄의 사용량이 크지 않으면서도 90 - 97%의 반사율을 얻을 수 있고, 난연제를 포함하고 있음에도 우수한 반사율을 구현할 수 있으며, 압출 또는 사출과 같은 간단한 방법으로 제조할 수 있어 제조비용을 줄일 수 있다. In the composition for manufacturing a reflective sheet according to the present invention, by adding a diffusing agent to the polypropylene resin, it is possible to evenly diffuse titanium dioxide in the polypropylene resin, and by including a flame retardant, it is possible to improve the flame retardant performance at the same time. In addition, the reflective sheet prepared by using the composition for manufacturing a reflective sheet according to the present invention can obtain a reflectance of 90 to 97% even though the amount of titanium dioxide is not large, and can realize excellent reflectance even though it contains a flame retardant, and extruded. Or it can be manufactured by a simple method such as injection can reduce the manufacturing cost.

구체적으로, 상기 폴리프로필렌 수지는 조성물 총 중량에 대해 35.0 - 81.0 중량%, 상기 이산화티타늄은 조성물 총 중량에 대해 3.5 - 27.0 중량%, 상기 확산제는 조성물 총 중량에 대해 3.5 - 18.0 중량%, 상기 난연제는 상기 조성물 총 중량에 대해 10.0 - 30.0 중량%로 포함되는 것이 바람직하다.
Specifically, the polypropylene resin is 35.0 to 81.0% by weight relative to the total weight of the composition, the titanium dioxide is 3.5 to 27.0% by weight relative to the total weight of the composition, the diffusion agent is 3.5 to 18.0% by weight relative to the total weight of the composition, Flame retardant is preferably included in 10.0 to 30.0% by weight relative to the total weight of the composition.

폴리프로필렌 수지Polypropylene resin

본 발명에 따른 반사시트 제조용 조성물 중 폴리올리핀계 수지인 폴리프로필렌 수지는 비중이 0.9 정도의 매우 가벼운 플라스틱이며, 강성, 내충격성, 전기적 특성 및 내수성, 내약품성이 우수하다. 또한, 폴리프로필렌을 반사시트의 기재로 사용하여 종래 금속판으로 제조되는 반사시트와는 차별되게 성형성이 우수하고 제조비용을 크게 줄일 수 있다. The polypropylene resin, which is a polyolefin resin in the composition for manufacturing a reflection sheet according to the present invention, is a very light plastic having a specific gravity of about 0.9, and is excellent in rigidity, impact resistance, electrical properties, water resistance, and chemical resistance. In addition, by using polypropylene as the base of the reflective sheet, it is excellent in formability and can significantly reduce the manufacturing cost, which is different from the reflective sheet made of a conventional metal plate.

상기 폴리프로필렌 수지는 조성물 총 중량에 대해 35.0 - 81.0 중량%로 포함되는 것이 바람직하다. 상기 폴리프로필렌이 35.0 중량% 미만인 경우에는 반사시트의 기재 물질로서의 기계적 강도가 저하되고 성형성이 저하되는 문제가 있고, 81.0 중량%를 초과하는 경우에는 추가되는 이산화탄소, 확산제의 함량이 낮아져 반사성능이 저하되는 문제가 있다. The polypropylene resin is preferably included in 35.0 to 81.0% by weight relative to the total weight of the composition. When the polypropylene is less than 35.0% by weight, there is a problem that the mechanical strength of the reflective sheet as a base material is lowered and the moldability is lowered. When the polypropylene is more than 81.0% by weight, the added carbon dioxide and the content of the diffusing agent are lowered to reflect performance. This has a problem of deterioration.

이산화티타늄Titanium dioxide

본 발명에 따른 반사시트 제조용 조성물 중 이산화티타늄은 배면광 손실을 최소화하고 이를 반사시키기 위해 반사시트가 백색으로 착색되도록 하는 백색 안료로 사용될 수 있을 뿐만 아니라, 공기 중에서의 굴절률이 높아 반사시트의 반사성능을 향상시킬 수 있다. Titanium dioxide in the composition for manufacturing a reflective sheet according to the present invention can be used as a white pigment that allows the reflective sheet to be colored white in order to minimize the back light loss and reflect it, and also has a high refractive index in the air, thereby reflecting performance of the reflective sheet. Can improve.

상기 이산화티타늄은 조성물 총 중량에 대해 3.5 - 27.0 중량%로 포함되는 것이 바람직하다. 상기 이산화티타늄이 3.5 중량% 미만인 경우에는 반사시트의 반사성능이 향상되지 않으며, 27.0 중량%를 초과하는 경우에는 반사시트의 내충격성이 저하되고 반사시트의 기계적 강도가 저하되는 문제가 있다. The titanium dioxide is preferably included in 3.5 to 27.0% by weight relative to the total weight of the composition. If the titanium dioxide is less than 3.5% by weight, the reflection performance of the reflective sheet is not improved. If the titanium dioxide is more than 27.0% by weight, the impact resistance of the reflective sheet is lowered and the mechanical strength of the reflective sheet is lowered.

확산제Diffuser

본 발명에 따른 반사시트 제조용 조성물 중 확산제는 왁스, 아연, 저밀도 폴리에틸렌(LDPE) 및 선형 저밀도 폴리에틸렌(LLDP)을 포함하고, 상기 각각의 물질들이 균등한 비율로 혼합된다. 상기 확산제에 포함되는 왁스는 이산화티타늄과 아연을 폴리프로필렌 수지 기재에 고르게 고정시켜 주는 기능을 하며, 아연은 이산화티타늄과 함께 반사시트의 반사율을 증가시킨다. 또한, 저밀도 폴리에틸렌 및 선형 저밀도 폴리에틸렌은 폴리프로필렌 수지와의 혼합을 용이하게 한다. The diffusing agent in the composition for manufacturing a reflecting sheet according to the present invention includes wax, zinc, low density polyethylene (LDPE) and linear low density polyethylene (LLDP), and the respective materials are mixed in an equal ratio. The wax contained in the diffusion agent functions to evenly fix titanium dioxide and zinc on the polypropylene resin substrate, and zinc increases the reflectance of the reflective sheet together with titanium dioxide. In addition, low density polyethylene and linear low density polyethylene facilitate the mixing with polypropylene resins.

상기 확산제는 조성물 총 중량에 대해 3.5 - 18.0 중량%로 포함되는 것이 바람직하다. 상기 확산제가 3.5 중량% 미만인 경우에는 반사시트에 이산화티타늄이 고르게 위치하지 않아 반사성능이 고르지 못하고 반사율이 저하되는 문제가 있고, 18.0 중량%를 초과하는 경우에는 이산화티타늄 대비 확산제 함량이 높아 제조비용이 증가하는 문제가 있다. The diffusing agent is preferably included in the amount of 3.5 to 18.0% by weight based on the total weight of the composition. If the diffusing agent is less than 3.5% by weight, there is a problem in that the reflection performance is uneven and the reflectance is deteriorated because titanium dioxide is not evenly positioned on the reflecting sheet, and in the case of more than 18.0% by weight, the diffusing agent content is higher than titanium dioxide. There is a growing problem.

난연제Flame retardant

본 발명에 따른 반사시트 제조용 조성물 중 난연제는 반사시트에 과도한 열이 전달되거나 화재 발생 시 점화 및 발화를 지연시킬 수 있다. 상기 난연제로는 폴리에스테르, 폴리올레핀, 폴리프로필렌, 에폭시수지, 아크릴계수지, 폴리아릴렌에테르, 폴리아미드 등을 사용할 수 있다. The flame retardant in the composition for manufacturing a reflective sheet according to the present invention may delay ignition and ignition when excessive heat is transferred to the reflective sheet or a fire occurs. As the flame retardant, polyester, polyolefin, polypropylene, epoxy resin, acrylic resin, polyarylene ether, polyamide and the like can be used.

상기 난연제는 조성물 총 중량에 대해 10.0 - 30.0 중량%로 포함되는 것이 바람직하다. 상기 난연제가 10.0 중량% 미만인 경우에는 반사시트에서 발생하는 열에 의해 발화되는 문제가 있고, 30.0 중량%를 초과하는 경우에는 반사시트의 난연성 향상에 비해 추가되는 물질들의 함량이 작아져 난연성 향상에 비해 반사 성능이 저하되는 문제가 있다.
The flame retardant is preferably included in 10.0 to 30.0% by weight based on the total weight of the composition. If the flame retardant is less than 10.0% by weight, there is a problem that it is ignited by heat generated in the reflective sheet. When the flame retardant is more than 30.0% by weight, the amount of added materials is smaller than the flame retardancy of the reflective sheet. There is a problem that performance is reduced.

또한, 본 발명은 폴리프로필렌 수지, 이산화티타늄(TiO2), 확산제 및 난연제를 포함하는 반사시트 제조용 조성물로 제조되는 반사시트를 제공한다. The present invention also provides a reflecting sheet made of a composition for manufacturing a reflecting sheet comprising a polypropylene resin, titanium dioxide (TiO 2 ), a diffusing agent and a flame retardant.

상기 반사시트는 전술한 조성물을 압출 또는 사출하여 제조될 수 있다. 본 발명에 따른 반사시트 제조용 조성물로 제조되는 반사시트는 반사율이 90 - 97% 범위로 높을 뿐만 아니라, 난연제를 첨가하여 반사시트의 내화성도 함께 향상시킬 수 있다.
The reflective sheet may be manufactured by extruding or injecting the above-described composition. Reflective sheet made of the composition for manufacturing a reflecting sheet according to the present invention is not only high reflectance in the range of 90 to 97%, but can also improve the fire resistance of the reflecting sheet by adding a flame retardant.

실시예 1 내지 12: 반사시트의 제조 Examples 1 to 12 Preparation of Reflective Sheet

폴리프로필렌 수지, 이산화티타늄, 확산제 및 난연제를 하기 표 1에 기재된 비율로 혼합한 후 압출하여 반사시트를 제조하였다. A polypropylene resin, titanium dioxide, a diffusing agent and a flame retardant were mixed in the ratios shown in Table 1, followed by extrusion to prepare a reflective sheet.

예Yes 폴리프로필렌 수지
(중량%)Polypropylene resin
(weight%) 이산화티타늄
(중량%)Titanium dioxide
(weight%) 확산제
(중량%)Diffuser
(weight%) 난연제
(중량%)Flame retardant
(weight%) 반사율
(%)reflectivity
(%) 실시예 1Example 1 3535 2020 1515 3030 9494 실시예 2Example 2 4040 2424 1616 2020 9595 실시예 3Example 3 4545 2727 1818 1010 9797 실시예 4Example 4 4949 1414 77 3030 9393 실시예 5Example 5 5656 1616 88 2020 9494 실시예 6Example 6 6363 1818 99 1010 9696 실시예 7Example 7 5656 88 66 3030 9292 실시예 8Example 8 6464 1010 66 2020 9494 실시예 9Example 9 7272 1111 77 1010 9595 실시예 10Example 10 6363 44 33 3030 9090 실시예 11Example 11 7272 44 44 2020 9292 실시예 12Example 12 8181 55 44 1010 9393

상기 표 1에 나타난 바와 같이, 조성물에 난연제를 30 중량%, 20 중량%, 10 중량%로 포함시키면서 난연제의 함량이 감소하면, 폴리프로필렌 수지의 함량을 증가시켰다. 또한, 난연제 함량이 감소할수록 이산화티타늄과 확산제의 함량을 증가시켜 조성물 배합을 조절하였다. 실시예 1 내지 12의 반사율은 90 - 97%의 범위였으며, 난연제를 포함하더라도 반사율이 높은 것을 알 수 있다. 전반적으로 이산화티타늄의 함량이 높을수록 반사율은 증가하였으며, 난연제의 함량이 작을수록 반사율은 증가하였다. As shown in Table 1, when the content of the flame retardant is reduced while including the flame retardant in the composition 30% by weight, 20% by weight, 10% by weight, the content of the polypropylene resin was increased. In addition, as the flame retardant content was decreased, the composition of the composition was adjusted by increasing the contents of titanium dioxide and a diffusion agent. The reflectance of Examples 1 to 12 was in the range of 90 to 97%, and it can be seen that the reflectance is high even when a flame retardant is included. In general, the higher the content of titanium dioxide, the higher the reflectance. The smaller the content of the flame retardant, the higher the reflectance.

따라서, 확산제를 이용하여 이산화티타늄을 반사시트에 고르게 분포시킴으로써 높은 영역의 반사율뿐 아니라 고른 반사율을 얻을 수 있고, 난연재를 이산화티타늄 및 확산제의 함량에 따라 적정비율로 첨가하여 반사율에 거의 영향을 미치지 않고 내화성도 함께 향상시킬 수 있는 것을 알 수 있다.
Therefore, evenly dispersing titanium dioxide in the reflecting sheet using a diffusing agent can obtain not only high reflectance but also even reflectance, and the flame retardant is added at an appropriate ratio according to the content of titanium dioxide and the diffusing agent to substantially affect the reflectance. It turns out that fire resistance can also be improved also without reaching.

Claims (7)

폴리프로필렌 수지, 이산화티타늄(TiO2), 확산제 및 난연제를 포함하는 반사시트 제조용 조성물.
Polypropylene resin, titanium dioxide (TiO 2 ), a diffusing agent and a flame retardant composition for producing a composition comprising a flame retardant.
제1항에 있어서,
상기 이산화티타늄은 상기 조성물 총 중량에 대해 3.5 - 27.0 중량%로 포함되는 것을 특징으로 하는 반사시트 제조용 조성물.
The method of claim 1,
The titanium dioxide is a composition for manufacturing a reflection sheet, characterized in that contained in 3.5 to 27.0% by weight based on the total weight of the composition.
제1항에 있어서,
상기 확산제는 상기 조성물 총 중량에 대해 3.5 - 18.0 중량%로 포함되는 것을 특징으로 하는 반사시트 제조용 조성물.
The method of claim 1,
The diffusing agent is a composition for manufacturing a reflection sheet, characterized in that contained in 3.5 to 18.0% by weight based on the total weight of the composition.
제1항에 있어서,
상기 확산제는 왁스, 아연, 저밀도 폴리에틸렌(LDPE) 및 선형 저밀도 폴리에틸렌(LLDP)을 포함하는 것을 특징으로 하는 반사시트 제조용 조성물.
The method of claim 1,
The diffusing agent comprises a wax, zinc, low density polyethylene (LDPE) and linear low density polyethylene (LLDP) composition for producing a reflective sheet.
제1항에 있어서,
상기 난연제는 상기 조성물 총 중량에 대해 10.0 - 30.0 중량%로 포함되는 것을 특징으로 하는 반사시트 제조용 조성물.
The method of claim 1,
The flame retardant is a composition for manufacturing a reflection sheet, characterized in that contained in 10.0 to 30.0% by weight based on the total weight of the composition.
제1항에 있어서,
상기 난연제는 폴리에스테르, 폴리올레핀, 폴리프로필렌, 에폭시수지, 아크릴계수지, 폴리아릴렌에테르 및 폴리아미드로 이루어진 군으로부터 선택되는 1종 이상을 포함하는 것을 특징으로 하는 반사시트 제조용 조성물.
The method of claim 1,
The flame retardant is a composition for producing a reflective sheet, characterized in that it comprises at least one selected from the group consisting of polyester, polyolefin, polypropylene, epoxy resin, acrylic resin, polyarylene ether and polyamide.
제1항의 반사시트 제조용 조성물로 제조되는 반사시트.

Reflective sheet made of a composition for producing a reflective sheet of claim 1.

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KR102011877B1 (en) 2019-05-02 2019-08-20 주식회사 알프스이십일 LED lighting Apparatus coated by High-Light-intensity powder coating composition
KR101986601B1 (en) 2019-02-26 2019-09-30 주식회사 알프스이십일 High-Light-intensity powder coating composition and LED lighting Apparatus coated by the same

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