KR102448267B1 - Multi-layer water tank - Google Patents

Multi-layer water tank Download PDF

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KR102448267B1
KR102448267B1 KR1020200122923A KR20200122923A KR102448267B1 KR 102448267 B1 KR102448267 B1 KR 102448267B1 KR 1020200122923 A KR1020200122923 A KR 1020200122923A KR 20200122923 A KR20200122923 A KR 20200122923A KR 102448267 B1 KR102448267 B1 KR 102448267B1
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weight
parts
layer
water tank
density polyethylene
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KR20220040549A (en
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임진성
이봉주
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임진성
이봉주
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/022—Laminated structures
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/45—Heterocyclic compounds having sulfur in the ring
    • C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
    • C08K5/47—Thiazoles

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

본 발명은 다층구조의 물탱크에 관한 것이다.
보다 구체적으로, 고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합하여 형성된 외층(110), 저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본(carbon black) 6.5~7.5 중량부 및 복합 발포제 13.5~14.5 중량부를 배합하여 형성된 중간층(120) 및 고밀도 폴리에틸렌 수지 81~84 중량부, 항균제 16~19 중량부를 배합하여 형성된 내층(130)을 포함하는 것을 특징으로 하는 다층구조의 물탱크.에 관한 것이다. The present invention relates to a water tank having a multi-layer structure.
More specifically, the outer layer 110 formed by mixing 75 to 80 parts by weight of a high density polyethylene resin, 13 to 17 parts by weight of a binary blend antioxidant, and 7 to 8 parts by weight of a Hals-based sunscreen, 78.5 to 79.5 parts by weight of a low density polyethylene resin The intermediate layer 120 formed by mixing 6.5 to 7.5 parts by weight of carbon black and 13.5 to 14.5 parts by weight of a composite foaming agent, 81 to 84 parts by weight of a high-density polyethylene resin, and 16 to 19 parts by weight of an antibacterial agent The inner layer 130 formed by mixing It relates to a water tank of a multi-layer structure comprising a.

Description

다층구조의 물탱크{MULTI-LAYER WATER TANK}Multi-layered water tank {MULTI-LAYER WATER TANK}

본 발명은 다층구조의 물탱크에 관한 것이다. The present invention relates to a water tank having a multi-layer structure.

보다 구체적으로, 내충격을 강화시키고 자외선 투과를 억제시키는 외층, 외부충격을 흡수하고 보온/보냉을 위한 중간층 및 항균 작용을 위한 내층으로 구성된 다층구조의 물탱크에 관한 것이다. More specifically, it relates to a water tank having a multi-layer structure comprising an outer layer that enhances impact resistance and suppresses UV transmission, an intermediate layer that absorbs external impact and heat/cools insulation, and an inner layer that has an antibacterial action.

일반적으로, 물을 담아 넣어 두는 저장용기인 물탱크는 시설물, 예를 들면 대형공장, 아파트, 농장 등에 설치되는 대용량 물탱크뿐만 아니라 단독주택이나 소형빌딩에 설치되는 소용량 물탱크가 있다.In general, a water tank, which is a storage container for storing water, includes not only large-capacity water tanks installed in facilities, for example, large factories, apartments, farms, etc., but also small-capacity water tanks installed in detached houses or small buildings.

이러한 물탱크는 물을 장시간 사용하지 않고 저장하고 있으면 물탱크 내부에 미생물, 심지어는 벌레나 이끼 등의 녹조류가 번식하여 식수는 물론 산업용수나 농업용수로도 사용하기에 부적합하다.If the water is stored without using the water for a long time, microorganisms and even green algae such as insects and moss grow in the water tank, making it unsuitable for use as drinking water as well as industrial water or agricultural water.

따라서, 미생물 및 녹조류의 번식을 방지하여 저장된 물의 수질을 개선할 수 있는 항균 물탱크가 필요하다. 이를 해결하고자 하는 특허문헌으로 한국공개특허 제2015-0093035호(이하, 선행문헌이라 함)가 있다.Therefore, there is a need for an antibacterial water tank capable of improving the quality of stored water by preventing the propagation of microorganisms and green algae. As a patent document to solve this problem, there is Korean Patent Application Laid-Open No. 2015-0093035 (hereinafter referred to as a prior document).

선행문헌은 징크리피치온을 이용한 내층을 형성하여 항균 및 수질개선효과를 가진다. 하지만, 선행문헌은 항균성을 제공하고 있으나, 이외의 물리적 특성에 따른 물탱크의 변형, 물탱크 내에 수용된 물의 변질이 발생될 수 있다.Prior literature has antibacterial and water quality improvement effects by forming an inner layer using zinc pithione. However, although the prior literature provides antibacterial properties, deformation of the water tank according to other physical characteristics and deterioration of the water contained in the water tank may occur.

물탱크는 항균성 이외에 가공성, 내충격성, 충격강도, 자외선 투과도, 열전도도 등의 물리적 특성에 따른 변형 및 물의 변질이 발생될 수 있어 이를 해결할 수 있는 방안이 요구된다. 이에, 본 출원인은 다층구조를 통해 물리적 특성이 우수한 다중기능을 제공할 수 있는 물탱크를 제공하고자 한다.In addition to antibacterial properties, water tanks may be deformed and deteriorated according to physical properties such as workability, impact resistance, impact strength, UV transmittance, and thermal conductivity, so a method to solve these problems is required. Accordingly, the present applicant intends to provide a water tank capable of providing multiple functions with excellent physical properties through a multi-layered structure.

1. 한국공개특허 제2015-0093035호(2015.08.17)1. Korea Patent Publication No. 2015-0093035 (2015.08.17)

본 발명의 목적은, 내충격을 강화시키고 자외선 투과를 억제시키는 외층, 외부충격을 흡수하고 보온/보냉을 위한 중간층 및 항균 작용을 위한 내층으로 구성된 다층구조로 형성되어 다중기능이 강화된 다층구조의 물탱크를 제공하는 데 있다.It is an object of the present invention to form a multi-layer structure consisting of an outer layer that strengthens impact resistance and suppresses ultraviolet transmission, an intermediate layer for absorbing external shock and heat/cooling, and an inner layer for antibacterial action, so that multi-layered water has enhanced functions. to provide tanks.

상기한 바와 같은 목적을 달성하기 위한 본 발명의 일 실시 예에 따른 다층구조의 물탱크는 고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합하여 형성된 외층(110), 저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본(carbon black) 6.5~7.5 중량부 및 복합 발포제 13.5~14.5 중량부를 배합하여 형성된 중간층(120) 및 고밀도 폴리에틸렌 수지 81~84 중량부, 항균제 16~19 중량부를 배합하여 형성된 내층(130)을 포함할 수 있다.A water tank having a multilayer structure according to an embodiment of the present invention for achieving the above object is 75 to 80 parts by weight of high-density polyethylene resin, 13 to 17 parts by weight of a binary blend antioxidant, and 7 parts by weight of a Hals-based sunscreen The outer layer 110 formed by blending ~8 parts by weight, 78.5 to 79.5 parts by weight of a low density polyethylene resin, 6.5 to 7.5 parts by weight of carbon black, and 13.5 to 14.5 parts by weight of a composite foaming agent The intermediate layer 120 and high density polyethylene resin formed by blending 13.5 to 14.5 parts by weight The inner layer 130 formed by mixing 81 to 84 parts by weight and 16 to 19 parts by weight of an antibacterial agent may be included.

이때, 상기 외층(110) : 중간층(120) : 내층(130)은, 1.25 : 1 : 1.25의 두께 비율로 형성될 수 있다.In this case, the outer layer 110 : the intermediate layer 120 : the inner layer 130 may be formed in a thickness ratio of 1.25 : 1 : 1.25 .

또한, 상기 항균제는, 크림바졸(Creambazole), 염화 세틸피리디늄(Cetyl Pyridinium Chloride), 산화아연(Zinc oxide) 및 산화티탄(Titanium oxide)으로 구성될 수 있다.In addition, the antibacterial agent may be composed of creambazole, cetyl pyridinium chloride, zinc oxide and titanium oxide.

이상에서 설명한 바와 같이, 본 발명의 일 실시 예에 따른 다층구조의 물탱크는 외층은 고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합하여 형성됨으로써 내충격을 강화시키고 자외선 투과를 억제할 수 있다. As described above, in the water tank having a multi-layer structure according to an embodiment of the present invention, the outer layer is 75 to 80 parts by weight of high-density polyethylene resin, 13 to 17 parts by weight of binary blend antioxidant, and 7 to Hals-based sunscreen. By mixing 8 parts by weight, it is possible to strengthen the impact resistance and suppress the transmission of ultraviolet rays.

또한, 중간층은 저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본(carbon black) 6.5~7.5 중량부 및 복합 발포제 13.5~14.5 중량부를 배합 조성함으로써 기포에 의한 외부충격을 흡수하고 물탱크에 담기는 물을 보온 또는 보냉하는 효과를 가진다.In addition, the middle layer absorbs external shocks caused by air bubbles and keeps water in the water tank by mixing 78.5 to 79.5 parts by weight of low-density polyethylene resin, 6.5 to 7.5 parts by weight of carbon black, and 13.5 to 14.5 parts by weight of a composite foaming agent. Or it has a cooling effect.

또한, 내층은 고밀도 폴리에틸렌 수지 81~84 중량부, 항균제 16~19 중량부를 배합 조성함으로써 항균 작용을 위한 내층으로 구성된 다층구조로 형성되어 다중기능이 강화된 다층구조의 물탱크를 제공하는 데 있다.In addition, the inner layer is formed into a multi-layer structure composed of an inner layer for antibacterial action by mixing 81 to 84 parts by weight of a high-density polyethylene resin and 16 to 19 parts by weight of an antibacterial agent to provide a water tank having a multi-layer structure with enhanced multi-function.

이때, 외층 : 중간층 : 내층이 1.25 : 1 : 1.25 비율의 두께로 형성함으로써 각층의 기능을 다중적으로 제공할 수 있다. In this case, by forming the outer layer: the middle layer: the inner layer with a thickness of 1.25: 1: 1.25 ratio, the functions of each layer can be provided in multiple ways.

도 1은 본 발명의 일 실시 예에 따른 다층구조의 물탱크를 나타내는 도면이다.
도 2는 도 1의 다층구조를 설명하기 위한 A-A' 단면도이다.
도 3은 도 1의 물탱크의 외층에 대한 물리적 특성을 나타내는 표이다.
도 4는 도 1의 물탱크의 중간층에 대한 물리적 특성을 나타내는 표이다.
도 5는 도 1의 물탱크의 내층에 대한 물리적 특성을 나타내는 표이다.
도 6은 도 1의 물탱크의 외층 : 중간층 : 내층의 두께비율에 따른 물리적 특성을 나타내는 표이다. 1 is a view showing a water tank having a multi-layer structure according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view AA′ for explaining the multilayer structure of FIG. 1 .
FIG. 3 is a table showing physical properties of an outer layer of the water tank of FIG. 1 .
FIG. 4 is a table showing physical properties of an intermediate layer of the water tank of FIG. 1 .
5 is a table showing physical properties of the inner layer of the water tank of FIG. 1 .
6 is a table showing physical properties according to a thickness ratio of an outer layer: an intermediate layer: an inner layer of the water tank of FIG. 1 .

이하에서는 본 발명에 따른 다층구조의 물탱크에 관하여 첨부된 도면과 함께 더불어 상세히 설명하기로 한다.Hereinafter, a water tank having a multi-layer structure according to the present invention will be described in detail together with the accompanying drawings.

도 1은 본 발명의 일 실시 예에 따른 다층구조의 물탱크를 나타내는 도면이다. 도 2는 도 1의 다층구조를 설명하기 위한 A-A' 단면도이다. 본 발명의 일 실시 예에 따른 다층구조의 물탱크(100)는 복합적인 다중기능을 제공하기 위하여 다층구조로 형성되되, 각 층은 서로의 기능을 저해하지 않으면서 각 층의 기능을 발휘할 수 있는 조성비율로 재료가 배합되어 형성될 수 있다. 1 is a view showing a water tank having a multi-layer structure according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line A-A' for explaining the multilayer structure of FIG. 1 . The water tank 100 having a multi-layer structure according to an embodiment of the present invention is formed in a multi-layer structure to provide a complex multi-function, and each layer can exhibit the functions of each layer without interfering with each other's functions. It may be formed by mixing the materials in the composition ratio.

도 1 및 도 2를 참고하면, 본 발명의 일 실시 예에 따른 다층구조의 물탱크(100)는 외층(110), 중간층(120) 및 내층(130)으로 구성될 수 있으며, 원형으로 도시되어 있으나 그 형태는 한정되지 않는다.1 and 2, the multi-layered water tank 100 according to an embodiment of the present invention may be composed of an outer layer 110, an intermediate layer 120, and an inner layer 130, and is shown in a circular shape. However, the form is not limited.

외층(110)은 올레핀계열의 공중합체를 주원료로 구성되고, 부재료로 산화방지제 및 자외선 차단제가 혼합구성될 수 있다. 이때, 올레핀계열의 공중합체는 고밀도 폴리에틸렌(HDPE: High Density Polyethylene)이 이용될 수 있으며, 이외에 Low density polyethylene, Linear low density polyethylene, metallocene linear low density polyethylene, polypropylen, Acrylonitrile Butadiene Styrene copolymer, Poly carbonate, Polyacetal, Nylon plastic, PBT(Polybutylene terephthalate) resin 중 하나를 채택하여 주원료로 이용할 수 있다.The outer layer 110 may be composed of an olefin-based copolymer as a main raw material, and an antioxidant and a UV blocker may be mixed as an auxiliary material. In this case, as the olefin-based copolymer, high density polyethylene (HDPE: High Density Polyethylene) may be used, and in addition, Low density polyethylene, Linear low density polyethylene, metallocene linear low density polyethylene, polypropylen, Acrylonitrile Butadiene Styrene copolymer, Poly carbonate, Polyacetal , Nylon plastic, PBT (Polybutylene terephthalate) resin can be adopted as the main raw material.

또한, 산화방지제는 주원료인 올레핀계열의 공중합체의 광산화반응 중 발생하는 자유라디컬 제거하고 변색을 방지하는 페놀계 산화방지제(1차 산화방지제) 및 인계 산화방지제(2차 산화방지제)를 블렌딩한 바이너리블렌드를 사용하고, 자외선 차단제는 광산화반응 중 발생하는 자유라디칼을 제거하여 산화반응을 방지시키는 할스계 자외선 차단제를 이용할 수 있다.In addition, the antioxidant is a blend of a phenolic antioxidant (primary antioxidant) and phosphorus antioxidant (secondary antioxidant) that removes free radicals generated during the photooxidation reaction of the olefin-based copolymer, which is the main raw material, and prevents discoloration. Binary blends are used, and as the sunscreen, a Hals-based sunscreen that prevents oxidation by removing free radicals generated during photooxidation can be used.

본 발명의 일 실시 예에 따른 외층(110)은 고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합하여 형성됨으로써 내충격을 강화시키고 자외선 투과를 억제할 수 있다. 이때, 외층(110) 배합조성은 고밀도 폴리에틸렌 수지 80 중량부, 바이너리 블렌드 산화방지제 17 중량부 및 할스(Hals)계 자외선 차단제 8 중량부인 것이 특히 바람직하다.The outer layer 110 according to an embodiment of the present invention is formed by mixing 75 to 80 parts by weight of a high-density polyethylene resin, 13 to 17 parts by weight of a binary blend antioxidant, and 7 to 8 parts by weight of a Hals-based sunscreen. It can strengthen and suppress ultraviolet transmission. In this case, the composition of the outer layer 110 is particularly preferably 80 parts by weight of a high-density polyethylene resin, 17 parts by weight of a binary blend antioxidant, and 8 parts by weight of a Hals-based sunscreen.

또한, 중간층(120)은 외층(110)과 동일하게 올레핀계열의 공중합체 중 하나를 선택하여 주원료로 이용할 수 있고, 카본 및 발포제(PE Form)가 배합 구성될 수 있다. 본 발명의 일 실시 예에 따른 중간층(120)은 저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본(carbon black) 6.5~7.5 중량부 및 복합 발포제 13.5~14.5 중량부를 혼합 조성함으로써 기포에 의한 외부충격을 흡수하고 물탱크에 담기는 물을 보온 또는 보냉시킬 수 있다.In addition, the intermediate layer 120 may be used as a main raw material by selecting one of the olefin-based copolymers in the same way as the outer layer 110 , and carbon and a foaming agent (PE Form) may be blended. The intermediate layer 120 according to an embodiment of the present invention absorbs external shock caused by air bubbles by mixing 78.5 to 79.5 parts by weight of a low-density polyethylene resin, 6.5 to 7.5 parts by weight of carbon black, and 13.5 to 14.5 parts by weight of a composite foaming agent. And the water in the water tank can be kept warm or cold.

이때, 중간층(120)의 배합조성은 저밀도 폴리에틸렌 수지 79 중량부, 카본(carbon black) 7 중량부 및 복합 발포제 14중량부인 것이 특히 바람직하다.In this case, the mixing composition of the intermediate layer 120 is particularly preferably 79 parts by weight of a low-density polyethylene resin, 7 parts by weight of carbon black, and 14 parts by weight of a composite foaming agent.

또한, 내층(130)은 올레핀계열의 공중합체를 주원료로 구성되고, 부재료로 항균제가 배합구성될 수 있다. 이때, 항균제는 올레핀계열의 공중합체와 혼합되는 성질을 가지는 크림바졸(Creambazole), 염화 세틸피리디늄(Cetyl Pyridinium Chloride), 산화아연(Zinc oxide) 및 산화티탄(Titanium oxide)를 이용하였다.In addition, the inner layer 130 may be composed of an olefin-based copolymer as a main raw material, and an antibacterial agent may be blended as a secondary material. At this time, the antibacterial agent was creambazole (Creambazole), cetyl pyridinium chloride (Cetyl Pyridinium Chloride), zinc oxide (Zinc oxide) and titanium oxide (Titanium oxide) having the property of mixing with the olefin-based copolymer was used.

본 발명의 일 실시 예에 따른 내층(130)은 고밀도 폴리에틸렌 수지 81~84 중량부, 항균제 16~19 중량부를 혼합 조성함으로써 항균 작용 효과를 제공할 수 있다. 즉, 물에 직접 닿는 면인 내층은 항균제에 의해 이끼발생, 다양한 미생물 및 세균의 발생을 억제시킬 수 있다. 이때, 내층(130)의 배합조성은 고밀도 폴리에틸렌 수지 84 중량부, 항균제 19 중량부인 것이 특히 바람직하다.The inner layer 130 according to an embodiment of the present invention may provide an antibacterial effect by mixing 81 to 84 parts by weight of a high-density polyethylene resin and 16 to 19 parts by weight of an antibacterial agent. That is, the inner layer, which is the surface that is in direct contact with water, can suppress the generation of moss and various microorganisms and bacteria by the antibacterial agent. At this time, it is particularly preferable that the blending composition of the inner layer 130 is 84 parts by weight of high-density polyethylene resin and 19 parts by weight of antibacterial agent.

외층(110), 중간층(120) 및 내층(130)은 각각의 주원료 및 부재료를 혼합하여 각 층에 대한 각각의 압출공정 라인을 따라 용융 압출되고, 용융 압출된 각각의 층은 튜브성형기(미도시)로 주입되어 용융상태에서 다층이 결합되고 블로우 성형 등을 통해 물탱크가 제조될 수 있다. 이때, 물탱크(100)를 구성하는 외층 : 중간층 : 내층은 1.25 : 1 : 1.25 비율의 두께로 형성함으로써 각층의 기능을 다중적으로 제공할 수 있다. 이때, 중간층(120)의 두께는 2mm 내지 5mm가 될 수 있다.The outer layer 110, the intermediate layer 120, and the inner layer 130 are melt-extruded along each extrusion process line for each layer by mixing respective main raw materials and sub-materials, and each melt-extruded layer is formed by a tube forming machine (not shown). ), the multi-layers are combined in a molten state, and a water tank can be manufactured through blow molding, etc. At this time, by forming the outer layer: the middle layer: the inner layer constituting the water tank 100 to a thickness of 1.25: 1: 1.25 ratio, the functions of each layer can be provided in multiple ways. In this case, the thickness of the intermediate layer 120 may be 2mm to 5mm.

본 발명의 일 실시 예에 따른 물탱크(100)의 외층(110), 중간층(120) 및 내층(130) 각각에 대하여, 주원료 및 부재료의 배합조성에 따른 물리적 특성을 도 3 내지 도 5의 실험결과로부터 확인할 수 있다. For each of the outer layer 110 , the intermediate layer 120 , and the inner layer 130 of the water tank 100 according to an embodiment of the present invention, the physical properties according to the composition of the main and sub-materials were tested in FIGS. 3 to 5 . It can be confirmed from the results.

여기서, 물리적 특성은, 가공성, 내충격성, 자외선 투과도, 용융흐름지수(MFI), 충격강도, 외관, 항균성이 될 수 있고, 각 층의 기능에 따라 조성비에 따른 물리적 특성을 확인해 보았다. 도 3 내지 도 5는 각 층의 조성비에 따라 해당 층으로만 형성된 물탱크를 이용하여 물리적 특성을 실험한 결과이다. Here, the physical properties can be processability, impact resistance, UV transmittance, melt flow index (MFI), impact strength, appearance, and antibacterial properties, and the physical properties according to the composition ratio were checked according to the function of each layer. 3 to 5 are results of testing physical properties using a water tank formed only of the corresponding layer according to the composition ratio of each layer.

도 3은 도 1의 물탱크의 외층에 대한 물리적 특성을 나타내는 표이다.FIG. 3 is a table showing physical properties of an outer layer of the water tank of FIG. 1 .

도 3과 같이 외층(110)의 조성비에 따른 물리적 특성으로 가공성, 내충격성, 자외선 투과도, 용융흐름지수(MFI)를 확인할 수 있다. As shown in FIG. 3 , processability, impact resistance, UV transmittance, and melt flow index (MFI) can be confirmed as physical properties according to the composition ratio of the outer layer 110 .

이때, 가공성은 용융흐름지수(MFI)와 관련성이 높으며 압출 가공시 혼합된 주원료 및 부재료의 가공의 용이함 정도로 가공성의 좋음(Good) 또는 나쁨(Bad)으로 구분하였다.In this case, the processability is highly related to the melt flow index (MFI), and the processability is classified as good or bad, as the degree of ease of processing of the main and sub-materials mixed during extrusion processing.

내충격성은 외층(110)의 물리적 특성 중 하나로, 6m의 높이에서 물탱크의 개구부가 위가 되도록 낙하시켜 5개를 샘플로 테스트하였으며, 변형 및 파괴된 개수를 평가하였다. 이때, 변형 및 파괴된 개수가 5개 중 1개 이하이면 우수, 2개~3개는 보통, 4~5개는 불량으로 판단하였다.Impact resistance is one of the physical properties of the outer layer 110. Five samples were tested by dropping the opening of the water tank from a height of 6 m to the top, and the number of deformation and destruction was evaluated. At this time, if the number of deformed and destroyed pieces was less than 1 out of 5, it was judged as excellent, 2~3 as normal, and 4~5 as bad.

자외선 투과도는 노화 및 변질을 유발하는 하나의 원인으로 작용하는 파장대역을 선택하였으며, 380nm 및 550nm에서의 투과도를 측정하였다. 이때, 투과도는 380nm에서 8%이내, 550nm에서 18%이내이면 우수성(노화 및 변질 없음)을 갖는 것으로 평가하였다.For UV transmittance, a wavelength band acting as one of the causes of aging and deterioration was selected, and transmittance at 380 nm and 550 nm was measured. At this time, if the transmittance was within 8% at 380 nm and within 18% at 550 nm, it was evaluated as having excellent (no aging and deterioration).

용융흐름지수(MFI)는 혼합된 주원료 및 부재료의 유동성 측정을 위한 것으로, 본 발명의 일 실시 예에서는 ASTM D1238의 조건하에서 190 ℃ 및 2.16 kg에서 측정하였다. 5분(5min)에서 2 이상, 10분(10min)에서 3 이상, 15분(15min)에서 5 이상, 30분(30min)에서 7 이상일 때 압출 가공시 적합한 용융흐름지수를 갖는 것으로 평가하였다. 이때, 기준치 이하에서는 가공에 어려움이 있었다.The melt flow index (MFI) is for measuring the fluidity of the mixed main and sub-materials, and in an embodiment of the present invention, it was measured at 190° C. and 2.16 kg under the conditions of ASTM D1238. When it was 2 or more at 5 minutes (5 min), 3 or more at 10 minutes (10 min), 5 or more at 15 minutes (15 min), and 7 or more at 30 minutes (30 min), it was evaluated as having a suitable melt flow index during extrusion. At this time, there was a difficulty in processing below the reference value.

도 3의 표에 따른 외층(110)의 다양한 조성비에 따른 실시 예를 살펴보면, 외층(110)은 고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합한 실시예에서 가공성이 좋고, 내충격성이 우수하며, 자외선 투과도는 380nm에서 3,7~3.8%, 550nm에서 7.9~8.5%가 되었다. 또한, 용융흐름지수(MFI)도 가공에 적합한 지수로 측정되었다. Looking at an embodiment according to various composition ratios of the outer layer 110 according to the table of FIG. 3 , the outer layer 110 includes 75 to 80 parts by weight of a high-density polyethylene resin, 13 to 17 parts by weight of a binary blend antioxidant, and Hals-based ultraviolet rays. In the example containing 7 to 8 parts by weight of the blocker, processability was good, impact resistance was excellent, and the UV transmittance was 3,7 to 3.8% at 380 nm and 7.9 to 8.5% at 550 nm. In addition, the melt flow index (MFI) was measured as an index suitable for processing.

특히, 고밀도 폴리에틸렌 수지 75 중량부, 바이너리 블렌드 산화방지제 13 중량부 및 할스(Hals)계 자외선 차단제 7 중량부를 배합한 실시예에서 가공성, 내충격성, 자외선 투과도 및 MFI지수가 모두 우수하여 내충격이 강화되고 자외선 투과를 억제할 수 있었다.In particular, in the example in which 75 parts by weight of high-density polyethylene resin, 13 parts by weight of binary blend antioxidant, and 7 parts by weight of Hals-based sunscreen were blended, processability, impact resistance, UV transmittance and MFI index were all excellent, and the impact resistance was strengthened. UV transmission could be suppressed.

이때, 고밀도 폴리에틸렌 수지가 75 중량부 보다 적으면 외관의 갈라짐 및 내충격성에 따른 불량이 발생되었고, 80 중량부 보다 많으면 자외선 투과도가 높아져 노화 및 변질이 발생될 수 있다.At this time, when the high-density polyethylene resin is less than 75 parts by weight, cracks in appearance and defects according to impact resistance are generated, and when it is more than 80 parts by weight, the UV transmittance is increased and aging and deterioration may occur.

도 4는 도 1의 물탱크의 중간층에 대한 물리적 특성을 나타내는 표이다. 도 4의 표에 따른 중간층(120)의 다양한 조성비에 따른 실시 예에 대하여 물리적 특성을 측정한 결과이다. 여기서, 가공성, 자외선 투과도 및 용융흐름지수(MFI)는 상기와 동일한 방법으로 측정하였으며, 충격강도 및 열전도도를 추가적으로 측정하였다. 이때, 충격강도는 ASTM D256방법에 따라 Izod 충격 강도를 측정하였다.FIG. 4 is a table showing physical properties of an intermediate layer of the water tank of FIG. 1 . It is a result of measuring the physical properties of the embodiment according to various composition ratios of the intermediate layer 120 according to the table of FIG. 4 . Here, processability, ultraviolet transmittance, and melt flow index (MFI) were measured in the same manner as above, and impact strength and thermal conductivity were additionally measured. At this time, the impact strength was measured Izod impact strength according to ASTM D256 method.

중간층(120)은 저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본(carbon black) 6.5~7.5 중량부 및 복합 발포제 13.5~14.5 중량부를 배합할 때 모든 물리적 특성에서 우수함을 보였다. 이때, 저밀도 폴리에틸렌이 80.5 중량부 보다 많으면 충격강도가 약해졌고, 76 중량부 이하이면 가공성에 어려움이 있었다. 또한, 카본이 6.5 중량부 이하가 되면 충격강도가 약해졌고 7.5 중량부 이상이 되면 용융흐름지수에 영향을 미쳤다. 피이폼(PE Foam)은 13.5 중량부 이하가 되면 열전도도가 높아져 단열이 되지 않아 보온보냉효과를 얻을 수 없고, 14.5 중량부 이상이 되면 용융흐름지수에 영향을 미쳤다.The intermediate layer 120 showed excellent properties in all physical properties when 78.5 to 79.5 parts by weight of the low-density polyethylene resin, 6.5 to 7.5 parts by weight of carbon black, and 13.5 to 14.5 parts by weight of the composite foaming agent were mixed. At this time, when the low density polyethylene was more than 80.5 parts by weight, the impact strength was weakened, and when it was 76 parts by weight or less, there was a difficulty in workability. In addition, when the carbon content was 6.5 parts by weight or less, the impact strength was weakened, and when it was 7.5 parts by weight or more, the melt flow index was affected. When the amount of PE Foam was less than 13.5 parts by weight, the thermal conductivity was increased, so that thermal insulation could not be obtained.

특히, 저밀도 폴리에틸렌 수지 79 중량부, 카본(carbon black) 7 중량부 및 복합 발포제 14 중량부를 배합한 실시예에서 가공성, 충격강도, 자외선 투과도, 용융흐름지수 및 열전도도가 모두 우수하여 외부충격을 흡수하고 물탱크에 담기는 물을 보온 또는 보냉하고, 이끼 발생을 억제하였다.In particular, in the example in which 79 parts by weight of a low-density polyethylene resin, 7 parts by weight of carbon black, and 14 parts by weight of a composite foaming agent are mixed, processability, impact strength, UV transmittance, melt flow index and thermal conductivity are all excellent to absorb external shock And the water in the water tank was kept warm or cold, and the generation of moss was suppressed.

도 5는 도 1의 물탱크의 내층에 대한 물리적 특성을 나타내는 표이다. 도 5의 표에 따른 내층(130)의 다양한 조성비에 따른 실시 예에 대하여 물리적 특성을 측정한 결과이다. 내층의 물리적특성은 가공성, 외관, 항균성을 살펴보았다. 5 is a table showing physical properties of the inner layer of the water tank of FIG. 1 . It is a result of measuring the physical properties of the embodiment according to various composition ratios of the inner layer 130 according to the table of FIG. 5 . The physical properties of the inner layer were examined for processability, appearance, and antibacterial properties.

도 5를 살펴보면, 내층(130)은 고밀도 폴리에틸렌 수지 81~84 중량부, 항균제 16~19 중량부를 배합 조성한 실시예에서 가공성 및 외관이 우수하고, 항균성도 양호한 것으로 확인되었다. 고밀도 폴리에틸렌 수지가 75 중량부 보다 적으면 외관의 갈라짐이 발생하였고, 84 중량부 이상일 때에는 항균성이 저하되었다. 한편, 고밀도 폴리에틸렌 수지가 76 중량부일 때는 외관의 갈라짐은 없었으나, 항균제에 의해 탄화가 발생되었다. 항균제는 16 중량부 보다 적으면 항균작용이 저하되었고, 19 중량부 보다 많으면 성형시 탄화가 발생되어 외관에 영향을 주었다.Referring to FIG. 5 , it was confirmed that the inner layer 130 had excellent processability and appearance, and good antibacterial properties in the embodiment in which 81 to 84 parts by weight of a high-density polyethylene resin and 16 to 19 parts by weight of an antibacterial agent were mixed. When the high-density polyethylene resin was less than 75 parts by weight, cracks in appearance occurred, and when it was 84 parts by weight or more, the antibacterial properties were lowered. On the other hand, when the high-density polyethylene resin was 76 parts by weight, there was no cracking in the appearance, but carbonization was generated by the antibacterial agent. When the amount of the antibacterial agent is less than 16 parts by weight, the antibacterial action is lowered, and when it is more than 19 parts by weight, carbonization occurs during molding, which affects the appearance.

특히, 내층(130)은 고밀도 폴리에틸렌 수지 81 중량부, 항균제 19 중량부를 배합한 실시 예에서 가공성, 외관, 항균성이 모두 우수하였다.In particular, the inner layer 130 was excellent in processability, appearance, and antibacterial properties in an embodiment in which 81 parts by weight of a high-density polyethylene resin and 19 parts by weight of an antibacterial agent were blended.

도 6은 도 1의 물탱크의 외층 : 중간층 : 내층의 두께비율에 따른 물리적 특성을 나타내는 표이다. 도 6은 최적의 조성비로 형성된 외층(110), 중간층(120) 및 내층(130)으로 물탱크(100)를 구성할 때, 각 층의 두께비율에 따른 물리적 특성을 살펴보았다.6 is a table showing physical properties according to a thickness ratio of an outer layer: an intermediate layer: an inner layer of the water tank of FIG. 1 . 6 shows the physical properties according to the thickness ratio of each layer when the water tank 100 is composed of the outer layer 110 , the middle layer 120 , and the inner layer 130 formed in an optimal composition ratio.

이때, 외층(110)은 고밀도 폴리에틸렌 수지 80 중량부, 바이너리 블렌드 산화방지제 13 중량부 및 할스(Hals)계 자외선 차단제 7 중량부를 배합하여 형성되었다.In this case, the outer layer 110 was formed by mixing 80 parts by weight of a high-density polyethylene resin, 13 parts by weight of a binary blend antioxidant, and 7 parts by weight of a Hals-based sunscreen.

중간층(120)은 저밀도 폴리에틸렌 수지 79 중량부, 카본(carbon black) 7 중량부 및 복합 발포제 14 중량부를 배합하여 형성되었다.The intermediate layer 120 was formed by mixing 79 parts by weight of a low-density polyethylene resin, 7 parts by weight of carbon black, and 14 parts by weight of a composite foaming agent.

내층(130)은 고밀도 폴리에틸렌 수지 81 중량부, 항균제 19 중량부를 배합하여 조성되되, 항균제는 크림바졸(Creambazole) 7중량부, 염화 세틸피리디늄(Cetyl Pyridinium Chloride) 8중량부, 산화아연(Zinc oxide) 2.5중량부 및 산화티탄(Titanium oxide) 1.5중량부로 조성하였다. The inner layer 130 is composed of 81 parts by weight of high-density polyethylene resin, 19 parts by weight of an antibacterial agent, and 7 parts by weight of creambazole, 7 parts by weight of cetyl pyridinium chloride, 8 parts by weight of cetyl pyridinium chloride, and zinc oxide. ) 2.5 parts by weight and 1.5 parts by weight of titanium oxide.

도 6에 따르면, 외층 : 중간층 : 내층의 두께비율은 1.25 : 1 : 1.25일 때, 각 물리적 특성이 우수한 것을 확인할 수 있다. 이때, 중간층의 두께는 2mm 내지 5mm가 될 수 있다.According to FIG. 6, when the thickness ratio of the outer layer: the middle layer: the inner layer is 1.25: 1: 1.25, it can be seen that each physical property is excellent. In this case, the thickness of the intermediate layer may be 2mm to 5mm.

본 명세서에 기재된 실시예와 도면에 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 변형 예들이 있을 수 있음을 이해하여야 한다.The embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

100 : 물탱크 110 : 외층
120 : 중간층 130 : 내층100: water tank 110: outer layer
120: middle layer 130: inner layer

Claims (3)

고밀도 폴리에틸렌 수지 75~80 중량부, 바이너리 블렌드 산화방지제 13~17 중량부 및 할스(Hals)계 자외선 차단제 7~8 중량부를 배합하여 형성된 외층(110);
저밀도 폴리에틸렌 수지 78.5~79.5 중량부, 카본 블랙(carbon black) 6.5~7.5 중량부 및 PE 폼(foam) 13.5~14.5 중량부를 배합하여 형성된 중간층(120); 및
고밀도 폴리에틸렌 수지 81~84 중량부 및 항균제를 배합하여 형성된 내층(130);을 포함하며,
상기 항균제는 크림바졸(Creambazole) 6 내지 7 중량부, 염화 세틸피리디늄(Cetyl Pyridinium Chloride) 6.8 내지 8 중량부, 산화아연(Zinc oxide) 2 내지 2.5 중량부 및 산화티탄(Titanium oxide) 1.3 내지 1.5 중량부로 구성되고,
상기 외층: 중간층: 내층은 1.25: 1: 1.25의 두께 비율을 가지며,
상기 중간층의 두께는 2 내지 5 ㎜인 것을 특징으로 하는 다층구조의 물탱크.An outer layer 110 formed by mixing 75 to 80 parts by weight of a high-density polyethylene resin, 13 to 17 parts by weight of a binary blend antioxidant, and 7 to 8 parts by weight of a Hals-based sunscreen;
An intermediate layer 120 formed by mixing 78.5 to 79.5 parts by weight of a low-density polyethylene resin, 6.5 to 7.5 parts by weight of carbon black, and 13.5 to 14.5 parts by weight of PE foam; and
Including; an inner layer 130 formed by blending 81 to 84 parts by weight of a high-density polyethylene resin and an antibacterial agent;
The antibacterial agent is creambazole (Creambazole) 6 to 7 parts by weight, cetyl pyridinium chloride (Cetyl Pyridinium Chloride) 6.8 to 8 parts by weight, zinc oxide (Zinc oxide) 2 to 2.5 parts by weight and titanium oxide (Titanium oxide) 1.3 to 1.5 It consists of parts by weight,
The outer layer: the middle layer: the inner layer has a thickness ratio of 1.25: 1: 1.25,
The water tank having a multi-layer structure, characterized in that the thickness of the intermediate layer is 2 to 5 mm. 삭제delete 삭제delete
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JP2011027399A (en) * 2009-06-29 2011-02-10 Nishiyama Corp Resin tank
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KR101621028B1 (en) * 2015-07-16 2016-05-13 주식회사 현대피엠씨 Protection tube for electric cable using recycling material
KR101994364B1 (en) * 2015-07-06 2019-07-01 최부성 Master batch of antimicrobial plastics and manufacturing method thereof

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US8934709B2 (en) 2008-03-03 2015-01-13 Videoiq, Inc. Dynamic object classification

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2011027399A (en) * 2009-06-29 2011-02-10 Nishiyama Corp Resin tank
JP2013253754A (en) * 2012-06-08 2013-12-19 Nishiyama Corp Resin tank
KR101994364B1 (en) * 2015-07-06 2019-07-01 최부성 Master batch of antimicrobial plastics and manufacturing method thereof
KR101621028B1 (en) * 2015-07-16 2016-05-13 주식회사 현대피엠씨 Protection tube for electric cable using recycling material

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