KR20040085813A - A Fire-Resistant Board For Sandwich Panel And Manufacturing Method Thereof - Google Patents

A Fire-Resistant Board For Sandwich Panel And Manufacturing Method Thereof Download PDF

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Publication number
KR20040085813A
KR20040085813A KR1020030020624A KR20030020624A KR20040085813A KR 20040085813 A KR20040085813 A KR 20040085813A KR 1020030020624 A KR1020030020624 A KR 1020030020624A KR 20030020624 A KR20030020624 A KR 20030020624A KR 20040085813 A KR20040085813 A KR 20040085813A
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South Korea
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sandwich panel
fire
manufacturing
styrofoam
resistant board
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KR1020030020624A
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Korean (ko)
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김성모
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김성모
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Priority to KR1020030020624A priority Critical patent/KR20040085813A/en
Publication of KR20040085813A publication Critical patent/KR20040085813A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—PS, i.e. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Abstract

PURPOSE: A fire-resistant board for a sandwich panel and a manufacturing method thereof are provided to have a good fire resistance, a light weight and an insulation and to be produced in a simple process and a low cost. CONSTITUTION: The manufacturing method of the fire-resistant board for the sandwich panel comprises the steps of: mixing a styrofoam having a polyhedral shape, a gypsum and/or a cement mortar, and a fibrous material in a volume ratio of 50-80:20-10:30-10; adding the mixture to 5 to 20 wt.% of a water and 0.0001 to 0.01 wt.% of a methyl cellulose; kneading; forming; and drying. The styrofoam is coated with a surfactant and milled into a particle diameter of 1 to 5 mm.

Description

샌드위치 패널용 내화성 판재 및 그 제조방법{A Fire-Resistant Board For Sandwich Panel And Manufacturing Method Thereof}Fire-Resistant Board For Sandwich Panel And Manufacturing Method Thereof}

본 발명은 샌드위치 패널용 내화성 판재 및 그 제조방법에 관한 것으로, 보다 상세하기로는 경량성을 구비함과 동시에 내화성이 우수한 샌드위치 패널용 판재 및 그 제조방법에 관한 것이다.TECHNICAL FIELD The present invention relates to a sandwich panel fire resistant plate material and a method for manufacturing the same, and more particularly, to a sandwich panel plate material having a light weight and excellent in fire resistance and a method of manufacturing the same.

대규모의 공장건물이나 창고 등의 건축에 널리 사용되고 있는 샌드위치 패널은 시공이 편리하고 가격이 저렴하여 그 수요가 꾸준히 증가되고 있으나 그 재질에 따라 여러 가지의 문제점을 가지고 있다.Sandwich panels, which are widely used in the construction of large-scale factory buildings or warehouses, are convenient in construction and inexpensive, and their demand is steadily increasing, but there are various problems depending on the materials.

가장 널리 사용되고 있는 재질은 스티로폼이며, 스티로폼 재질의 샌드위치 패널은 단열성과 경량성, 그리고 경제성 측면에서 가장 우수하지만 화재에 취약한 단점이 있다. 유리면 재질의 패널은 불연성은 타 소재에 비하여 우수하지만 단열성이 부족하며 최근에는 발암물질로 밝혀짐에 따라 그 사용이 기피되고 있다. 중간적 성질을 가지는 우레탄 패널은 경제성과 불연성에 있어서 문제점이 있다.The most widely used material is styrofoam, and the styrofoam sandwich panel is the most excellent in terms of insulation, light weight, and economy, but has a disadvantage of being vulnerable to fire. Glass panels are superior to other materials incombustibility, but they lack heat insulation and have recently been found to be carcinogens. Urethane panels having intermediate properties have problems in economics and incombustibility.

상기한 바와 같은 문제점을 해결하기 위한 선행기술로 한국공개특허 제1995-31510호에 개시된 스티로폼제 복합보강판넬을 들 수 있다. 이 기술은 고순도의 모래와 시멘트를 주제로 하고 여기에 분말상의 보습제, 수지, 소포제, 유동제를 미량 혼합한 도포제와; 물과 액상의 아크릴 에멀존계 접착제가 2 : 1의 비율로 희석된 접착보조제를 별도로 혼합, 제조한 다음 상기 분말상의 도포제와 액상의 접착보조제를 100 : 20의 비율로 혼합, 반죽하여 얻은 슬러리 상태의 시멘트몰탈로 구성된 표면강도보강재로서 통상의 스티로폼 패널의 일면 또는 양면에 스프레이하여 1차 및 2차 도포층을 형성하되, 1차 및 2차 도포층 사이에 금속사나 섬유사가 그물상으로 직조된 보강심재가 개재된 표면보강층을 접착시키는 수단으로 복합보강판넬을 제조하는 것으로 구성되어 있다.Styrofoam composite reinforcement panel disclosed in the prior art to solve the problems as described above is disclosed in Korea Patent Publication No. 195-31510. This technology is based on the high-purity sand and cement, the coating agent comprising a small amount of a powdery moisturizer, a resin, an antifoaming agent, a flow agent; A slurry obtained by separately mixing and preparing water and a liquid acrylic emulsion-based adhesive in an adjuvant ratio of 2: 1, and then mixing and kneading the powdery coating agent and the liquid adjuvant in an amount of 100: 20. A surface strength reinforcement composed of cement mortar, which is sprayed on one or both sides of a conventional styrofoam panel to form a primary and secondary coating layer, wherein a reinforcing core material in which metal yarn or fiber yarn is woven into a net between the primary and secondary coating layers. It is composed of manufacturing a composite reinforcement panel as a means for bonding the interlayer reinforcing layer.

상기 기술에 의한 패널은 단열성 및 경량성과 내화성을 구비하였으나, 제조공정이 매우 번거로워서 사업화되지는 못하고 있다.The panel according to the above technology has heat insulation, light weight, and fire resistance, but the manufacturing process is very cumbersome and has not been commercialized.

본 발명은 상기한 바와 같은 문제점을 해결하기 위한 것으로, 단열성과 경량성 및 내화성을 구비한 샌드위치 패널용 판재를 제공하는 것을 목적으로 한다. 본 발명의 다른 목적은 생산원가가 저렴하고 제조공정이 단순화된 샌드위치 패널용 판재를 제공하는 것이다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a sandwich panel sheet having heat insulation, light weight and fire resistance. Another object of the present invention is to provide a sandwich panel sheet having a low production cost and a simplified manufacturing process.

본 발명은 직경 1-5mm의 크기의 입자로 분쇄된 다면체 형상의 스티로폼 표면을 폴리에틸렌 글리콜 계통의 용액으로 코팅한 다음, 코팅된 스티로폼 입자와 석고 및/또는 시멘트 몰탈과 펄프를 부피비로 50-80 : 20-10 : 30-10의 비율로 혼합하고 물과 메틸셀룰로오스를 첨가하여 반죽한 다음 성형 및 건조시키는 것으로 구성된다.According to the present invention, the surface of a polyhedron-shaped styrofoam pulverized into particles having a diameter of 1-5 mm is coated with a polyethylene glycol-based solution, and then the coated styrofoam particles and gypsum and / or cement mortar and pulp in a volume ratio of 50-80: It consists of mixing at the ratio of 20-10: 30-10, kneading with the addition of water and methylcellulose, and then molding and drying.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

본 발명에 사용되는 스티로폼 입자는 폐스티로폼을 분쇄한 것이 바람직하지만, 별도로 제작된 구형의 스티로폼 입자가 사용될 수도 있다.Styrofoam particles used in the present invention is preferably pulverized waste styrofoam, spherical styrofoam particles produced separately may be used.

스티로폼 입자와 석고 및/또는 시멘트 몰탈과의 결합력을 증가시킴과 동시에 각 소재의 밀도차이에 의한 층분리 현상을 방지하기 위하여 스티로폼 입자는 계면활성제로 코팅된다. 바람직한 계면활성제는 폴리에틸렌글리콜 계통이며 그 이유는 폴리에틸렌글리콜의 OH기가 친수성을 띠어 물과 용이하게 희석되어 일정한 비율로 혼합조제가 쉽고 사용이 용이하기 때문이다.Styrofoam particles are coated with a surfactant to increase the bonding force between the styrofoam particles and gypsum and / or cement mortar and to prevent delamination due to the density difference of each material. The preferred surfactant is a polyethylene glycol system because the OH group of the polyethylene glycol is hydrophilic and easily diluted with water, so that the mixing aid is easy and easy to use in a constant ratio.

계면활성제에 사용목적에 따라 HBCD(Hexa Bromo Chrolide Dodecane) 계통의 난연제를 첨가 분산시키거나 스티렌 계통의 이온교환수지를 적량 첨가할 수도 있다. 계면활성제의 사용량은 스피로폼 입자 1M3에 2-4ℓ이며, 5-10배의 물에 희석되어 사용된다. 희석 조제된 용액을 스티로폼 입자에 스프레이 분사기 또는 스크류 믹서기등을 사용하여 연속 혼합하고 일정시간 대기중에서 자연건조시키면 표면의 수분이 증발하면서 코팅제가 스티로폼 입자의 표면에 단단히 결합된다.Depending on the purpose of the surfactant, HBCD (Hexa Bromo Chrolide Dodecane) flame retardant may be added or dispersed, or a styrene-based ion exchange resin may be added in an appropriate amount. The amount of the surfactant used is 2-4 L in 1M3 of spirofoam particles, and is used after diluting in 5-10 times of water. The diluted solution is continuously mixed with the styrofoam particles using a spray injector or a screw mixer, and naturally dried in the air for a predetermined time so that the coating agent is firmly bonded to the surface of the styrofoam particles while the surface moisture evaporates.

코팅이 끝난 스티로폼 입자를 석고나 시멘트 몰탈과 펄프 등의 섬유상의 물질과 부피비로 50-80 : 20-10 : 30-10의 비율로 혼합하여 고르게 분산시킨다. 이때펄프는 난연처리된 셀룰로오스를 사용하는 것이 바람직하며, 내화성이 더욱 요구되는 경우에는 세라믹 울로 대체사용할 수 있다. 표면 코팅된 스티로폼 입자의 사용량이 상기 범위 미만의 경우에는 경량성과 단열성이 부족하게 되며, 상기 범위를 초과할 경우에는 패널의 강도가 부족하게 된다.The coated styrofoam particles are evenly dispersed by mixing 50-80: 20-10: 30-10 in volume ratio with fibrous materials such as gypsum, cement mortar and pulp. At this time, it is preferable to use flame retarded cellulose, and when the fire resistance is required more, it can be replaced by ceramic wool. When the amount of the surface-coated styrofoam particles is less than the above range, there is a lack of light weight and heat insulation, and if it exceeds the above range, the strength of the panel is insufficient.

혼합이 끝난 재료의 성형 및 경화를 위하여 물이 가하여지며, 그 사용량은 5-20중량%이다. 이 범위 미만의 경우에는 몰탈의 경화에 필요한 충분한 수분의 공급이 부족하여 강도가 떨어지거나 불균일한 분산으로 부위별 강도편차가 발생하기 쉬우며, 상기 범위를 초과하는 경우에는 건조 및 양생에 시간이 오래 걸리며 형틀의 기밀이 유지되지 아니할 경우 반죽된 몰탈이 형틀 밖으로 흘러나올 수 있다. 초기의 접착력을 강화하기 위하여 메틸셀룰로오스의 첨가가 필요하며 그 적절한 사용량은 0.0001-0.01중량%이다. 메틸 셀룰로오스는 물에 분산된 상태에서 첨가된다.Water is added to form and cure the mixed material, and its amount is 5-20% by weight. If it is less than this range, insufficient supply of sufficient moisture for hardening of mortar is likely to decrease the strength or uneven dispersion, so that the strength deviation of each part easily occurs, and if it exceeds the above range, it takes a long time to dry and cure. If the mold is not kept tight, the kneaded mortar may flow out of the mold. In order to enhance the initial adhesion, the addition of methyl cellulose is required, and its appropriate amount is 0.0001-0.01% by weight. Methyl cellulose is added while dispersed in water.

물이 가해진 상태에서 반죽되어 유동성을 갖는 혼합물을 일정한 형태의 형틀에 부어 형상을 유지시키며 필요시 상부의 덮개를 가압하여 내부의 공극발생을 방지할 수 있다. 일정한 시간이 경과하여 형상이 유지되면 탈형하여 건조실에서 양생한다. 양생이 완료된 판재는 그대로 사용될 수 있으나 원하는 두께로 절단되어 사용될 수도 있다.It is kneaded in the state of water is added to maintain a shape by pouring a mixture having a fluidity in a mold of a certain shape and if necessary press the upper cover to prevent the occurrence of internal voids. If the shape is maintained after a certain time passes, it is demolded and cured in a drying chamber. The cured plate may be used as it is, but may be cut and used to a desired thickness.

이와 같이 제조된 판재는 외부마감재인 철판과 접착되어 샌드위치 패널로 제작된다. 이 때 접착방법은 통상의 샌드위치 패널의 제작방법과 동일하나 마감재의 종류를 철판이 아닌 내장용 자재를 선정 사용하는 경우에는 일정크기로 재단된 시트상의 마감재에 우레탄 계통의 접착제를 도포하고 심재를 넣은 후 프레스로 가압하여 접착시키는 배치타입의 비연속식 방법이 사용된다.The plate material thus manufactured is bonded to the iron plate, which is an external finishing material, to produce a sandwich panel. At this time, the bonding method is the same as the manufacturing method of the sandwich panel, but in the case of selecting the interior material rather than the steel plate, the urethane-based adhesive is applied to the sheet-like finishing material cut to a certain size and the core material is inserted. The batch type discontinuous method which press-bonds after a press is used.

이상과 같은 본 발명의 판재는 내화성이 우수할 뿐만 아니라 경량성과 단열성을 동시에 구비하고 있다. 또한 제조공정이 간단하고 재료비가 저렴하여 생산단가를 크게 낮출 수 있다.The plate member of the present invention as described above is not only excellent in fire resistance, but also has light weight and heat insulation at the same time. In addition, the manufacturing process is simple and the material cost is low, the production cost can be significantly lowered.

Claims (4)

표면이 계면활성제로 코팅되었으며 입자직경 1-5mm인 분쇄된 다면체 형상의 스티로폼과, 석고 및/또는 시멘트 몰탈과, 섬유상의 물질을 부피비로 50-80 : 20-10 : 30-10의 비율로 혼합하고, 이 혼합물에 대하여 물 5-20중량%와 메틸셀룰로오스 0.0001-0.01중량%를 첨가하여 반죽한 다음 성형 및 건조시키는 것을 특징으로 하는 샌드위치 패널용 내화판재의 제조방법.A surface-coated surfactant mixed with crushed polyhedral styrofoam with a particle diameter of 1-5 mm, gypsum and / or cement mortar and fibrous material in a ratio of 50-80: 20-10: 30-10 by volume To this mixture, 5-20% by weight of water and 0.0001-0.01% by weight of methyl cellulose are added, kneaded, and then molded and dried. 제1항에 있어서, 섬유상 물질은 펄프 및 세라믹 울을 포함하는 것을 특징으로 하는 샌드위치 패널용 내화판재의 제조방법.The method according to claim 1, wherein the fibrous material comprises pulp and ceramic wool. 제1항에 있어서, 계면활성제는 폴리에틸렌 글리콜 계통인 것을 특징으로 하는 샌드위치 패널용 내화판재의 제조방법.The method for producing a fireproof plate material for a sandwich panel according to claim 1, wherein the surfactant is a polyethylene glycol system. 제1항 기재의 방법에 의하여 제조된 것을 특징으로 하는 샌드위치 패널용 내화판재.The fireproof board material for sandwich panels manufactured by the method of Claim 1.
KR1020030020624A 2003-04-01 2003-04-01 A Fire-Resistant Board For Sandwich Panel And Manufacturing Method Thereof KR20040085813A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101137837B1 (en) * 2011-05-02 2012-04-18 조동하 Making method of flame-retardent styrofoam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101137837B1 (en) * 2011-05-02 2012-04-18 조동하 Making method of flame-retardent styrofoam

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