KR102265318B1 - Fire door with improved heat insulation - Google Patents

Fire door with improved heat insulation Download PDF

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Publication number
KR102265318B1
KR102265318B1 KR1020200091443A KR20200091443A KR102265318B1 KR 102265318 B1 KR102265318 B1 KR 102265318B1 KR 1020200091443 A KR1020200091443 A KR 1020200091443A KR 20200091443 A KR20200091443 A KR 20200091443A KR 102265318 B1 KR102265318 B1 KR 102265318B1
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South Korea
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flame
retardant
board
fire door
foam
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KR1020200091443A
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Korean (ko)
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장동기
장춘기
조정연
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장춘기
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/066—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of foam
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B2003/7023—Door leaves characterised by the filling between two external panels of foam type
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B2003/7032—Door leaves characterised by the filling between two external panels of non-vegetal fibrous material, e.g. glass or rock wool
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B2003/7042—Door leaves characterised by the filling between two external panels with a fire retardant layer

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Special Wing (AREA)

Abstract

The present invention relates to a heat-blocking fire door. More specifically, the fire door (D) has a fire door body (1) installed on a door frame (2) to be opened and closed. The fire door body (1) includes a pair of outer panels (100) and an inner panel (200) arranged between the outer panels (100). The inner panel (200) includes expansion foam (210) and a fire-resistant board (210) arranged on both sides of the expansion foam (210) and having an expansion board (222) on both sides of a flame-retardant board (221). The expansion foam (210) is thermosetting foam including a flame-retardant material and expansion graphite or expansion vermiculite. The flame-retardant board (221) is made of glass fiber impregnated with a first flame-retardant resin composition. The expansion board (222) is made of glass fiber impregnated with a second flame-retardant resin composition. According to the present invention, the heat-blocking fire door has the advantage of excellent non-heat-blocking performance, heat-blocking performance, strength, impact resistance, and weight reduction to have excellent fire safety.

Description

차열 방화문{FIRE DOOR WITH IMPROVED HEAT INSULATION}FIRE DOOR WITH IMPROVED HEAT INSULATION

본 발명은 차열 방화문에 관한 것으로, 더욱 상세하게는 내화성, 단열성 및 차열성이 우수한 것은 물론, 기계적 강도와 경량성이 우수한 차열 방화문에 관한 것이다. The present invention relates to a heat-shielding fire door, and more particularly, to a heat-shielding fire door having excellent fire resistance, heat insulation and heat insulation properties, as well as excellent mechanical strength and light weight.

통상적으로, 화재가 발생시에 건물 내의 연소와 연기의 확산을 방지하고, 피난을 용이하게 하기 위하여, 천정에 스프링 쿨러를 설치하여 건물의 화재 감지장치에서 화재를 감지할 때 살수기가 자동으로 작동되어 소화작업이 이루어지도록 하고, 일정 구역마다 방화셔터 또는 방화문을 설치하여 그 구역을 자동으로 폐쇄시킴으로써 화재 확산을 억제하고 있다.In general, when a fire occurs, a sprinkler is installed on the ceiling to prevent the spread of combustion and smoke in the building, and to facilitate evacuation, when the fire detection device of the building detects a fire, the sprinkler is automatically operated to extinguish the fire. The spread of fire is suppressed by allowing work to be done, and by automatically closing the area by installing a fire shutter or fire door in each area.

상기 방화문이란 화재시 대피시간을 벌어주며 불이 옮아붙는 시간을 늘리거나 차단하기 위하여 만들어진, 즉, 화염에 일정시간 견디도록 만들어진 문을 말하는 것으로, 평상시 일반적으로 사람의 통행이 가능하지만, 화재시 화염의 침투를 방지하도록 설계되어, 화염의 전파를 최소화하고 피난 경로를 확보하는 데 매우 중요한 시설이자, 화재 피해의 방지에 중요한 역할을 하는 구조물이다.The fire door refers to a door that is made to increase or block the time for evacuation in case of a fire and to increase or block the duration of the fire, that is, to withstand the flame for a certain period of time. It is a very important facility to minimize the spread of flame and secure an evacuation route as it is designed to prevent the penetration of fire, and it is a structure that plays an important role in preventing fire damage.

종래 방화문들은 외측패널을 철판으로 구성하고, 상기 철판 사이의 공간 내부에 종이 하니컴이나 우레탄재, 그라스 울과 같은 단열재를 충진한 구조로 만들어지고 있는데, 화재에 의해 고열이 발생하게 되면 방화문 내부에 충진된 종이 하니컴이나 단열재들이 연소되어 유독가스를 발생시키고, 방화문 자체가 손상되어 방화문으로서의 기능이 약화되는 문제가 있다. 아울러, 이러한 방화문은 외측패널이 철판으로 구성됨으로써 그 무게가 무거워 실내용 문으로 활용이 어렵다는 단점이 있었다.Conventional fire doors are made of a structure in which an outer panel is made of an iron plate, and insulating materials such as paper honeycomb, urethane material, and glass wool are filled inside the space between the iron plates. When high heat is generated by a fire, the fire door is filled inside. There is a problem in that the used paper honeycomb or insulators are burned to generate toxic gas, and the fire door itself is damaged and the function as a fire door is weakened. In addition, the fire door has a disadvantage in that it is difficult to use as an indoor door because the outer panel is made of an iron plate and the weight is heavy.

또한, 과거 방화문은 화염 및 연기확산을 방지하도록 비차열 1시간의 성능만을 만족하면 되었으나, 2016년 4월부터 방화문 이면의 상승온도 및 복사열에 대한 차열 30분의 성능 역시 요구되었는바, 단순히 상기 철판 사이의 공간 내부에 종이 하니컴이나 우레탄재, 그라스 울과 같은 단열재를 충진한 구조의 방화문 구조체만으로는 방화문 이면의 상승온도 및 복사열에 대한 차열 30분의 성능을 만족시킬 수 없었다.In addition, in the past, fire doors only had to satisfy the performance of one hour of non-shielding to prevent the spread of flames and smoke, but since April 2016, performance of 30 minutes of heat shielding against the rising temperature and radiant heat behind the fire door was also required. The fire door structure filled with insulating materials such as paper honeycomb, urethane material, and glass wool in the space between the fire door structures alone could not satisfy the 30-minute thermal insulation performance against the rising temperature and radiant heat behind the fire door.

KR 10-1110657 B1KR 10-1110657 B1 KR 10-2017-0108608 AKR 10-2017-0108608 A KR 10-1600020 B1KR 10-1600020 B1 KRUS 10-117154710-1171547 B1B1

따라서 본 발명의 목적은 차열성, 비차열성, 내화성 및 단열성이 우수하면서도, 강도, 내충격성 등의 기계적 물성이 우수하고, 경량성이 우수한 차열 방화문을 제공하는 데 있다.Accordingly, an object of the present invention is to provide a heat-shielding fire door that is excellent in heat-shielding property, non-heat-shielding property, fire resistance and heat insulation property, and has excellent mechanical properties such as strength and impact resistance, and is excellent in light weight.

본 발명의 다른 목적은, 외측패널을 목재로 구성함으로써, 경량성이 우수하고, 미관이 향상되어 거주공간의 실내문으로도 활용할 수 있는 차열 방화문을 제공하는 데 있다.Another object of the present invention is to provide a heat-shielding fire door that can be utilized as an indoor door of a living space by having an outer panel made of wood, which is excellent in lightness and has improved aesthetics.

상기한 목적을 달성하기 위한 본 발명의 차열 방화문은, 방화문 본체가 문틀에 개폐 가능하게 설치되는 방화문에 있어서, 상기 방화문 본체는, 한 쌍의 외측패널과, 상기 외측패널 사이에 배치되는 내측패널로 구성되며, 상기 내측패널은, 팽창폼과, 상기 팽창폼의 양면에 배치되며, 난연보드의 양면에 팽창보드가 구비된 내화보드로 구성되되, 상기 팽창폼은 난연재; 및 팽창흑연 또는 팽창질석;을 포함하는 열경화성 발포폼이고, 상기 난연보드는 제1 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되고, 상기 팽창보드는 제2 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되는 것을 특징으로 한다. The heat-shielding fire door of the present invention for achieving the above object is a fire door in which a fire door body is installed to be able to open and close on a door frame, wherein the fire door body includes a pair of outer panels and an inner panel disposed between the outer panels. The inner panel comprises: an inflatable foam; and a fireproof board having an inflatable board on both sides of the flame-retardant board disposed on both sides of the inflatable foam, wherein the inflatable foam is a flame retardant; and expanded graphite or expanded vermiculite; wherein the flame-retardant board is made of glass fibers impregnated with a first flame-retardant resin composition, and the expanded board is made of glass fibers impregnated with a second flame-retardant resin composition. characterized in that it is composed.

상기 문틀은, 난연보드의 외면에 팽창보드가 구비되고, 상기 팽창보드의 외면에 난연보드가 구비되어 구성되는 것을 특징으로 한다.The door frame is characterized in that an expansion board is provided on the outer surface of the flame-retardant board, and the flame-retardant board is provided on the outer surface of the expansion board.

상기 외측패널은 합판 또는 MDF이고, 상기 팽창폼은 난연재; 및 팽창흑연 또는 팽창질석;을 포함하는 우레탄 발포폼이며, 발포 밀도는 75~90kg/㎥이고, 상기 유리섬유는 로빙 크로스(roving cloth) 형태로서, 상기 난연보드 및 상기 팽창보드는 모두 복수층의 함침 처리된 유리섬유로 구성됨을 특징으로 한다.The outer panel is plywood or MDF, the expanded foam is a flame retardant; and expanded graphite or expanded vermiculite; it is a urethane foam foam containing; the foaming density is 75-90 kg/m, and the glass fiber is in the form of a roving cloth, and the flame-retardant board and the expanded board are all of a plurality of layers. It is characterized in that it is composed of impregnated glass fiber.

상기 제1 난연성 수지 조성물은, 멜라민 수지 또는 페놀 수지; 경화제; 및 난연재;를 포함하고, 상기 제2 난연성 수지 조성물은, 에폭시 수지 또는 우레아 수지; 경화제; 난연재; 및 팽창흑연 또는 팽창질석;을 포함하는 것을 특징으로 한다.The first flame retardant resin composition, a melamine resin or a phenol resin; hardener; and a flame retardant, wherein the second flame retardant resin composition comprises: an epoxy resin or a urea resin; hardener; flame retardant; and expanded graphite or expanded vermiculite.

상기 팽창폼, 상기 제1 난연성 수지 조성물 및 상기 제2 난연성 수지 조성물에 포함되는 난연재는, 석고, 황토, 탄산칼슘, 수산화알루미늄, 수산화마그네슘, 소성알루미나 및 붕산아연으로 이루어진 그룹 중 선택된 2종 이상의 것임을 특징으로 한다.The flame retardant material included in the expanded foam, the first flame-retardant resin composition, and the second flame-retardant resin composition is at least two selected from the group consisting of gypsum, loess, calcium carbonate, aluminum hydroxide, magnesium hydroxide, calcined alumina, and zinc borate. characterized.

상기 팽창폼은, 팽창폼 100중량%에 대하여 난연재 5~30중량% 및 팽창흑연 또는 팽창질석 5~40중량%를 포함하고, 상기 제1 난연성 수지 조성물은, 경화제 0.1~3중량%; 난연재 20~40중량%; 및 잔부의 멜라민 수지 또는 페놀 수지;를 포함하고, 상기 제2 난연성 수지 조성물은, 경화제 0.1~3중량%; 난연재 5~30중량%; 팽창흑연 또는 팽창질석 5~40중량%; 및 잔부의 에폭시 수지 또는 우레아 수지;를 포함하는 것을 특징으로 한다.The expanded foam includes 5 to 30% by weight of a flame retardant and 5 to 40% by weight of expanded graphite or expanded vermiculite with respect to 100% by weight of the expanded foam, and the first flame retardant resin composition comprises: 0.1 to 3% by weight of a curing agent; Flame retardant 20-40% by weight; And the remainder of the melamine resin or phenol resin; includes, wherein the second flame-retardant resin composition, a curing agent 0.1 to 3% by weight; Flame retardant 5 to 30% by weight; Expanded graphite or expanded vermiculite 5-40% by weight; and the remainder of the epoxy resin or urea resin.

상기 문틀은, 난연보드의 외면에 팽창보드가 구비되고, 상기 팽창보드의 외면에 난연보드가 구비되어 구성되는 것을 특징으로 한다. The door frame is characterized in that an expansion board is provided on the outer surface of the flame-retardant board, and the flame-retardant board is provided on the outer surface of the expansion board.

본 발명에 의한 차열 방화문은, 비차열 성능, 차열 성능, 강도, 내충격성, 경량성이 우수하여, 화재 안정성이 우수하다는 장점이 있다. The heat-shielding fire door according to the present invention has an advantage in that it is excellent in non-thermal performance, heat-shielding performance, strength, impact resistance, and lightness, and is excellent in fire stability.

도 1은 본 발명에 의한 차열 방화문의 사시도.
도 2는 본 발명에 의한 차열 방화문의 설치 상태를 나타낸 단면도.
도 3은 본 발명에 의한 차열 방화문 본체의 부분 단면도.
도 4는 본 발명의 시험예 1에 의한 차열 방화문의 시험성적서.1 is a perspective view of a heat shield fire door according to the present invention.
Figure 2 is a cross-sectional view showing the installation state of the heat shield fire door according to the present invention.
3 is a partial cross-sectional view of the heat shield fire door body according to the present invention.
4 is a test report of a heat shielding fire door according to Test Example 1 of the present invention.

이하, 본 발명을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 의한 차열 방화문은, 팽창폼, 난연보드 및 팽창보드를 내측패널로 포함함으로써, 비차열 성능, 차열 성능, 강도, 내충격성 및 경량성을 개선한다는 데 특징이 있다. The heat-shielding fire door according to the present invention is characterized in that it improves non-heat-shielding performance, heat-shielding performance, strength, impact resistance and lightness by including an expanded foam, a flame-retardant board, and an expanded board as an inner panel.

더욱 구체적으로 본 발명에 의한 차열 방화문은, 도 1 및 도 2에서와 같이, 방화문 본체(1)가 문틀(2)에 개폐 가능하게 설치되는 방화문(D)에 있어서, 상기 방화문 본체(1)는, 한 쌍의 외측패널(100)과, 상기 외측패널(100) 사이에 배치되는 내측패널(200)로 구성되며, 상기 내측패널(200)은, 팽창폼(210)과, 상기 팽창폼(210)의 양면에 배치되며, 난연보드(221)의 양면에 팽창보드(222)가 구비된 내화보드(210)로 구성되되, 상기 팽창폼(210)은 난연재 및 팽창흑연 또는 팽창질석을 포함하는 열경화성 발포폼이고, 상기 난연보드(221)는 제1 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되고, 상기 팽창보드(222)는 제2 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되는 것을 특징으로 한다.More specifically, in the heat shielding fire door according to the present invention, as shown in FIGS. 1 and 2 , in the fire door (D) in which the fire door main body (1) is installed to be opened and closed on the door frame (2), the fire door main body (1) is , a pair of outer panels 100 and an inner panel 200 disposed between the outer panel 100, wherein the inner panel 200 includes an inflatable foam 210 and an inflatable foam 210 ) is disposed on both sides of the flame retardant board 221, and is composed of a fire resistant board 210 provided with an expansion board 222 on both sides of the flame retardant board 221, wherein the expanded foam 210 is a thermosetting material comprising a flame retardant and expanded graphite or expanded vermiculite. It is foam, and the flame-retardant board 221 is composed of glass fibers impregnated with a first flame-retardant resin composition, and the expansion board 222 is composed of glass fibers impregnated with a second flame-retardant resin composition. do.

본 발명은 방화문 본체(1) 및 문틀(2) 자체의 구성에 특징이 있는 것으로, 상기 방화문 본체(1)와 문틀(2)의 결합구조, 형상 등은 종래 공지된 방법에 따른다. 즉 도 1 및 2에서와 같이, 방화문 본체(1)와 문틀(2)은 경첩(3) 등에 의해 힌지결합되고, 방화문 본체(1)의 소정의 위치에 손잡이(4)가 설치될 수 있으며, 방화문 본체(1)와 문틀 사이에 가스케(G)이 설치될 수 있는 것으로, 도면에 게시된 형태 및 결합구조 외에도 종래 게시된 다양한 형태로 구성되고, 결합될 수 있음을 밝혀둔다. The present invention is characterized by the structure of the fire door body 1 and the door frame 2 itself, and the coupling structure and shape of the fire door body 1 and the door frame 2 follow a conventionally known method. That is, as shown in FIGS. 1 and 2, the fire door body 1 and the door frame 2 are hinged by a hinge 3, etc., and the handle 4 may be installed at a predetermined position of the fire door body 1, It should be noted that the gas (G) can be installed between the fire door body (1) and the door frame, and can be configured and combined in various forms previously published in addition to the form and coupling structure shown in the drawings.

먼저, 상기 방화문(D)의 문짝, 즉 방화문 본체(1)에 대해서 설명한다. 도 3은 본 발명에 의한 방화문 본체(1)의 부분 단면도이다.First, the door leaf of the fire door D, that is, the fire door body 1 will be described. 3 is a partial cross-sectional view of the fire door body 1 according to the present invention.

상기 방화문 본체(1)를 구성하는 상기 한 쌍의 외측패널(100)은 방화문 본체(D)에 기계적 물성을 부여하기 위한 것으로, 경량성의 확보는 물론, 방화문(D)의 미관을 위하여 목재, 더욱 구체적으로는 합판 또는 MDF로 구성된다. 즉, 종래에는 상기 외측패널(100)을 철판으로 구성함으로써, 그 무게가 무겁고, 미관이 좋지 못하다는 단점이 있었으나, 본 발명은 상기 외측패널(100)을 목재인 합판 또는 MDF로 구성함으로써, 이러한 단점을 해소하는 것이다. 아울러, 상기 한 쌍의 외측패널(100) 외면에는 다양한 종류의 시트지를 부착하여 미관을 더욱 높일 수 있음은 당연하다.The pair of outer panels 100 constituting the fire door main body 1 are for imparting mechanical properties to the fire door main body D. In order to secure lightness as well as the aesthetics of the fire door D, the pair of outer panels 100 is made of wood, more Specifically, it is composed of plywood or MDF. That is, in the prior art, by configuring the outer panel 100 with an iron plate, the weight was heavy and the aesthetics was not good. However, the present invention provides the outer panel 100 with plywood or MDF, which is wood. to eliminate the shortcomings. In addition, it is natural that various types of sheet paper can be attached to the outer surface of the pair of outer panels 100 to further enhance the aesthetics.

그리고 상기 외측패널(100) 사이에 배치되는 내측패널(200)은, 차열성, 비차열성, 단열성 및 내화성을 개선하는 주요 구성로, 상기 내측패널(200)은, 팽창폼(210);과, 상기 팽창폼(210)의 양면에 배치되며, 난연보드(221)의 양면에 팽창보드(222)가 접착되어 구성되는 내화보드(220);로 구성된다.And the inner panel 200 disposed between the outer panel 100 is a main component for improving heat-shielding property, non-heat-shielding property, heat insulation property and fire resistance, and the inner panel 200 includes an expanded foam 210; It is disposed on both sides of the inflatable foam 210, and a fire resistant board 220 configured by bonding the inflatable board 222 to both sides of the flame-retardant board 221;

상기 팽창폼(210)은 상기 내측패널(200)의 중간에 배치되어 단열재의 역할을 하는 것이다. 종래 일반 발포폼의 경우 열에 취약하기 때문에 화염시 발포폼이 녹아내려 단열성을 확보할 수 없는 단점이 있었는바, 본 발명은 상기 팽창폼(210)으로 난연재 및 팽창흑연 또는 팽창질석을 포함하는 열경화성 발포폼을 이용함으로써, 단열성은 물론, 우수한 내화성능을 갖도록 하는 것이다.The expanded foam 210 is disposed in the middle of the inner panel 200 to serve as a heat insulator. In the case of the conventional general foam, since it is vulnerable to heat, the foam melts in the event of a flame and thus heat insulation cannot be secured. The present invention is a thermosetting foam containing a flame retardant and expanded graphite or expanded vermiculite as the expanded foam 210 . By using the foam, it is to have excellent fire resistance as well as thermal insulation properties.

더욱 구체적으로, 상기 팽창폼(210)은 난연재 및 팽창흑연 또는 팽창질석을 포함하는 우레탄 발포폼인 것이 바람직하며, 발포 밀도는 75~90kg/㎥인 것이 바람직하다. 본 발명에서 상기 발포 밀도를 제한하는 이유는 상기 발포 밀도가 75kg/㎥ 미만이면 경량성은 우수하나 단열성이 충분히 발휘될 수 없고, 90kg/㎥를 초과할 경우 무게 상승으로 경량성 확보에 어려움이 있기 때문이다. 그리고 상기 팽창폼(210)의 두께는 제한하지 않으나, 20~100mm임이 바람직하다.More specifically, the expanded foam 210 is preferably a urethane foam including a flame retardant material and expanded graphite or expanded vermiculite, and preferably has a foaming density of 75 to 90 kg/m 3 . The reason for limiting the foaming density in the present invention is that if the foaming density is less than 75kg/m3, lightness is excellent, but thermal insulation cannot be sufficiently exhibited, and when it exceeds 90kg/m3, it is difficult to secure lightness due to weight increase. to be. And the thickness of the expandable foam 210 is not limited, but is preferably 20 to 100 mm.

상기 난연재는 열에 취약한 열경화성 발포폼의 단점을 해소해주어 화염시에도 팽창폼(210)이 녹아 내리는 것을 방지하는 것으로, 석고, 황토, 탄산칼슘, 수산화알루미늄, 수산화마그네슘, 소성알루미나 및 붕산아연으로 이루어진 그룹 중 선택된 2종 이상의 것을 사용함이 바람직하며, 그 평균 입자 크기는 분산성 등을 고려할 때 100nm~30㎛임이 바람직하다. 상기 난연재는 팽창폼 100중량%에 대하여 5~30중량%로 포함됨이 바람직한데, 그 첨가량이 5중량% 미만이면 난연성 확보에 어려움이 있고, 30중량%를 초과할 경우 더 이상의 상승효과 없이 제조단가만을 증가시키기 때문이다.The flame retardant solves the disadvantages of the thermosetting foam, which is vulnerable to heat, and prevents the expanded foam 210 from melting even in a flame. A group consisting of gypsum, loess, calcium carbonate, aluminum hydroxide, magnesium hydroxide, calcined alumina and zinc borate. It is preferable to use at least two selected from among, and the average particle size is preferably 100 nm to 30 μm in consideration of dispersibility and the like. The flame retardant is preferably contained in an amount of 5 to 30% by weight based on 100% by weight of the expanded foam. If the amount is less than 5% by weight, it is difficult to secure the flame retardancy, and when it exceeds 30% by weight, the manufacturing cost is not further synergistic. only because it increases

상기 팽창흑연 또는 팽창질석은, 열전도율을 낮춰 단열 성능을 향상시킴은 물론, 열과 접촉시 발포되는 특성을 갖는 것으로, 화재발생시 온도가 180℃ 이상으로 상승하는 과정에서 30~50배로 팽창하여 숯(Char)을 형성하기 때문에 연기 발생을 대부분 억제할 뿐만 아니라 팽창된 팽창층이 절연층으로 작용해 열의 이동을 방해하는 역할을 한다. 상기 팽창흑연 또는 팽창질석의 평균 입자 크기는 분산성 등을 고려할 때 100nm~30㎛임이 바람직하다. 상기 팽창흑연 또는 팽창질석은, 팽창폼 100중량%에 대하여 5~40중량%로 포함됨이 바람직한데, 그 첨가량이 5중량% 미만이면 그 효과가 미미하고, 40중량%를 초과할 경우 혼화성, 강도 등의 문제가 있기 때문이다.The expanded graphite or expanded vermiculite not only improves thermal insulation performance by lowering thermal conductivity, but also has a property of foaming when in contact with heat. ), not only suppresses most of the smoke generation, but also acts as an insulating layer to prevent heat transfer. The average particle size of the expanded graphite or expanded vermiculite is preferably 100 nm to 30 μm in consideration of dispersibility and the like. The expanded graphite or expanded vermiculite is preferably contained in an amount of 5 to 40% by weight based on 100% by weight of the expanded foam. If the amount added is less than 5% by weight, the effect is insignificant, and when it exceeds 40% by weight, miscibility, This is because there are issues such as strength.

상기 팽창폼(210)을 구성하는 열경화성 발포폼은 이 기술이 속하는 분야에서 충분히 공지된 것으로, 공지된 방법에 의해 제조됨은 당연하다. 예시적으로, 폴리머릭 이소시아네이트(Polymeric Isocyanate)를 포함하는 제1성분; 및 폴리올(PPG)이 함유된 발포제(Blowing agents), 상기 난연재, 상기 팽창흑연 또는 팽창질석을 포함하는 제2성분;을 배합하여 발포, 성형하여 제조할 수 있으며, 상기 제2성분에는 계면활성제, 촉매 등이 더 포함될 수 있음은 당연하다.The thermosetting foam constituting the expanded foam 210 is well known in the field to which this technology belongs, and it is natural that it is manufactured by a known method. Exemplarily, a first component including a polymeric isocyanate (Polymeric Isocyanate); and polyol (PPG) containing blowing agents, the flame retardant, and a second component including the expanded graphite or expanded vermiculite; it can be manufactured by mixing and foaming and molding, and the second component includes a surfactant, It is natural that a catalyst and the like may be further included.

상기 팽창폼(210)의 양면에 배치되는 내화보드(220)는, 난연보드(221)와, 상기 난연보드(221) 양면에 구비되는 팽창보드(222)로 구성된다.The fire resistant board 220 disposed on both sides of the inflatable foam 210 includes a flame-retardant board 221 and an expansion board 222 provided on both sides of the flame-retardant board 221 .

상기 난연보드(221)는 내화성의 확보를 위한 구성으로, 제1 난연성 수지 조성물에 함침 처리된 유리섬유로 이루어진다. 보다 바람직하게는 제1 난연성 수지 조성물에 함침 처리된 로빙 크로스(roving cloth) 형태의 유리섬유가 복수개, 2~5개의 층으로 적층되어 형성된다. 이때, 상기 제1 난연성 수지 조성물은, 경화제 0.1~3중량%; 난연재 20~40중량%; 및 잔부의 멜라민 수지 또는 페놀 수지;를 포함하며, 필요에 따라 톨루엔, 크실렌 등의 용제를 1~10중량%의 양으로 더 포함할 수 있다.The flame-retardant board 221 is configured to secure fire resistance, and is made of glass fiber impregnated with the first flame-retardant resin composition. More preferably, a plurality of glass fibers in the form of a roving cloth impregnated with the first flame-retardant resin composition are laminated in 2 to 5 layers. At this time, the first flame-retardant resin composition, the curing agent 0.1 to 3% by weight; Flame retardant 20-40% by weight; and the remainder of the melamine resin or phenol resin, and may further include a solvent such as toluene and xylene in an amount of 1 to 10% by weight, if necessary.

상기 난연보드(221)의 두께는 1~2mm임이 바람직하나, 이를 제한하는 것은 아니다.The thickness of the flame-retardant board 221 is preferably 1 to 2 mm, but is not limited thereto.

상기 유리섬유는 방화문의 내구성 등을 개선하는 것은 물론, 내화성을 부여해주는 불연성 재료이다. 상기 유리섬유의 종류로는 E-GLASS 및 G-GlASS가 있으나, 본 발명에서는 그 종류를 제한하지 않으며, 그 기계적 물성, 내화성 등을 고려할 때 본 발명에서는 로빙 크로스 형태의 유리섬유를 사용한다.The glass fiber is a non-combustible material that not only improves the durability of the fire door, but also imparts fire resistance. The types of glass fibers include E-GLASS and G-GLASS, but the present invention does not limit the types, and in consideration of the mechanical properties, fire resistance, etc., in the present invention, a roving cross type glass fiber is used.

상기 제1 난연성 수지 조성물을 구성하는 멜라민 수지 또는 페놀 수지는 수용성의 멜라민 수지 또는 페놀 수지를 이용할 수 있는 것으로, 상기 멜라민 수지 또는 페놀 수지는 이 기술이 속하는 분야에서 충분히 공지된 것이기에 이에 대한 상세한 설명은 생략한다.The melamine resin or phenol resin constituting the first flame-retardant resin composition may use a water-soluble melamine resin or phenol resin, and the melamine resin or phenol resin is sufficiently well known in the field to which this technology belongs. omit

아울러, 상기 경화제는 각 수지에 따라 공지된 적절한 경화제를 선택하여 사용할 수 있는 것으로, 이에 대한 상세한 설명은 생략한다.In addition, the curing agent may be used by selecting an appropriate curing agent known for each resin, and detailed description thereof will be omitted.

상기 제1 난연성 수지 조성물을 구성하는 상기 난연재는 앞서 설명된 바와 같이, 석고, 황토, 탄산칼슘, 수산화알루미늄, 수산화마그네슘, 소성알루미나 및 붕산아연으로 이루어진 그룹 중 선택된 2종 이상의 것을 사용함이 바람직하며, 그 평균 입자 크기는 분산성 등을 고려할 때 100nm~30㎛임이 바람직하다. As described above, the flame-retardant material constituting the first flame-retardant resin composition preferably uses two or more selected from the group consisting of gypsum, loess, calcium carbonate, aluminum hydroxide, magnesium hydroxide, calcined alumina and zinc borate, The average particle size is preferably 100 nm to 30 μm in consideration of dispersibility and the like.

상기 난연보드(221)을 제조하는 구체적인 방법으로는, 경화제 0.1~3중량%; 난연재 20~40중량%; 및 잔부의 수용성의 멜라민 수지 또는 수용성의 페놀 수지를 혼합하여 제1 난연성 수지 조성물을 준비한다. 이때, 톨루엔, 크실렌 등의 용제를 1~10중량%의 양으로 더 혼합할 수 있다. 그리고 이에 물을 상기 제1 난연성 수지 조성물 100중량부에 대하여 1~50중량부로 더 혼합하여 분산성을 개선하거나, 점도를 조절할 수 있는 것으로, 이를 제한하지 않는다. 그리고 상기 로빙 크로스(roving cloth) 형태의 유리섬유를 상기 점도가 조절된 제1 난연성 수지 조성물에 침지 후 꺼내거나, 상기 유리섬유에 상기 제1 난연성 수지 조성물을 도포하여, 상기 제1 난연성 수지 조성물이 유리섬유에 충분히 함침되도록 한다. 그리고 상기 제1 난연성 수지 조성물이 함침된 유리섬유에 다른 제1 난연성 수지 조성물이 침지된 유리섬유를 적층하는 과정을 복수회 반복한다. 다음으로, 이를 80~100kgf/㎠ 정도의 압력으로 압축하여 120~150℃의 온도로 경화하고, 냉각함으로써 난연보드(221)를 제조한다.As a specific method for manufacturing the flame-retardant board 221, 0.1 to 3% by weight of a curing agent; Flame retardant 20-40% by weight; And the balance of the water-soluble melamine resin or water-soluble phenol resin is mixed to prepare a first flame retardant resin composition. At this time, a solvent such as toluene and xylene may be further mixed in an amount of 1 to 10 wt%. In addition, water may be further mixed in an amount of 1 to 50 parts by weight based on 100 parts by weight of the first flame-retardant resin composition to improve dispersibility or to adjust the viscosity, but is not limited thereto. And, by immersing the glass fiber in the form of a roving cloth in the first flame-retardant resin composition of which the viscosity is adjusted, and then taking it out, or by applying the first flame-retardant resin composition to the glass fiber, the first flame-retardant resin composition is Make sure that the glass fiber is sufficiently impregnated. And the process of laminating the glass fiber impregnated with the other first flame-retardant resin composition on the glass fiber impregnated with the first flame-retardant resin composition is repeated a plurality of times. Next, it is compressed at a pressure of about 80-100 kgf/cm 2 , cured at a temperature of 120-150° C., and cooled to manufacture a flame-retardant board 221 .

상기 난연보드(221)는 우수한 내화 성능을 보이나, 상기 난연보드(221)만으로는 충분한 차열성능을 확보하기 어렵다. 따라서, 상기 난연보드(221)의 양면에 팽창보드(222)를 접착함으로써, 내화보드(220)를 구성하는 것이다.The flame-retardant board 221 shows excellent fire-resistance performance, but it is difficult to secure sufficient heat shielding performance with only the flame-retardant board 221 . Accordingly, by bonding the expansion board 222 to both sides of the flame-retardant board 221 , the fire-resistant board 220 is constituted.

상기 팽창보드(222)는 우수한 차열성능을 나타내는 것으로, 제2 난연성 수지 조성물에 함침 처리된 유리섬유로 이루어진다. 보다 바람직하게는 제2 난연성 수지 조성물에 함침 처리된 로빙 크로스(roving cloth) 형태의 유리섬유가 복수개, 2~5개의 층으로 적층되어 형성된다. 이때, 상기 제2 난연성 수지 조성물은, 경화제 0.1~3중량% 난연재 5~30중량; 팽창흑연 또는 팽창질석 5~40중량%; 및 잔부의 에폭시 수지 또는 우레아 수지;를 포함하며, 필요에 따라 톨루엔, 크실렌 등의 용제를 1~10중량%의 양으로 더 포함할 수 있다.The expansion board 222 is made of glass fiber impregnated with the second flame-retardant resin composition to exhibit excellent heat shielding performance. More preferably, a plurality of glass fibers in the form of a roving cloth impregnated with the second flame-retardant resin composition are laminated and formed in 2 to 5 layers. At this time, the second flame retardant resin composition, curing agent 0.1 to 3% by weight flame retardant 5 to 30 weight; Expanded graphite or expanded vermiculite 5-40% by weight; And the remainder of the epoxy resin or urea resin; includes, if necessary, may further include a solvent such as toluene, xylene in an amount of 1 to 10% by weight.

그리고 상기 팽창보드(222)의 두께는 1~3mm임이 바람직하나, 이를 제한하는 것은 아니다. And the thickness of the expansion board 222 is preferably 1 ~ 3mm, but is not limited thereto.

상기 에폭시 수지 또는 우레아 수지는 접착성 역시 우수하여, 별도의 접착제를 사용하지 않더라도 상기 난연보드(221)에 상기 팽창보드(222)를 압착하면 견고히 접착시킬 수 있다.The epoxy resin or the urea resin also has excellent adhesion, so that even if a separate adhesive is not used, if the expansion board 222 is pressed to the flame-retardant board 221 , it can be firmly adhered.

상기 제2 난연성 수지 조성물을 구성하는 에폭시 수지 또는 우레아 수지는 수용성의 에폭시 수지 또는 우레아 수지를 이용하는 것으로, 상기 에폭시 수지 또는 우레아 수지는 이 기술이 속하는 분야에서 충분히 공지된 것이기에 이에 대한 상세한 설명은 생략한다. The epoxy resin or urea resin constituting the second flame-retardant resin composition uses a water-soluble epoxy resin or urea resin, and the epoxy resin or urea resin is sufficiently well known in the art to which this technology belongs, so detailed description thereof will be omitted. .

아울러, 상기 경화제는 각 수지에 따라 공지된 적절한 경화제를 선택하여 사용할 수 있는 것으로, 이에 대한 상세한 설명은 생략한다.In addition, the curing agent may be used by selecting an appropriate curing agent known for each resin, and detailed description thereof will be omitted.

그리고 상기 난연재는 앞선 난연보드(221)와 동일하게 사용되며, 상기 팽창흑연 또는 팽창질석은 상기 팽창폼(210)과 동일하게 사용되어, 우수한 차열 성능을 부여한다.In addition, the flame retardant is used in the same manner as in the flame-retardant board 221 , and the expanded graphite or expanded vermiculite is used in the same manner as the expanded foam 210 to provide excellent heat shielding performance.

아울러, 상기 팽창보드(222)를 제조하는 방법 역시, 제2 난연성 수지 조성물을 사용하는 것을 제외하고는 상기 난연보드(221)와 동일하게 제조하나, 경화온도는 팽창흑연 또는 팽창질석의 팽창을 방지하고, 팽창보드(222)의 접착성 확보를 위하여 60~80℃로 하며, 압축 압력 역시 30~50kgf/㎠ 정도로만 압축한다.In addition, the method of manufacturing the expansion board 222 is also manufactured in the same manner as the flame-retardant board 221 except for using the second flame-retardant resin composition, but the curing temperature prevents expansion of expanded graphite or expanded vermiculite And, in order to secure the adhesion of the expansion board 222, it is set to 60 ~ 80 ℃, and the compression pressure is also compressed only about 30 ~ 50 kgf/cm 2 .

상기와 같이 구성된 본 발명의 차열 방화문 본체(1)는, 우수한 차열, 비차열, 단열 및 내화성능을 나타내면서도, 기계적 강도가 우수하며, 경량성이 우수하다는 특징이 있다. The heat shielding fire door main body 1 of the present invention configured as described above has excellent mechanical strength and light weight while exhibiting excellent heat shielding, non-thermal heat insulation, heat insulation and fire resistance performance.

아울러, 각 구성요소 간의 고정은 시판되는 난연 접착제를 이용할 수도 있으며, 별도의 접착제 없이 상기 팽창보드(222)의 제조시 이를 60~80℃에서 반경화한 후, 각 층을 샌드위치하여 접착할 수도 있으며, 별도의 측면 프레임을 이용하여 각 층을 고정할 수도 있는 것으로, 이를 제한하지 않는다.In addition, for fixing between each component, a commercially available flame-retardant adhesive may be used, and after semi-hardening at 60 to 80° C. during the manufacture of the expansion board 222 without a separate adhesive, each layer may be sandwiched and adhered. , it is also possible to fix each layer by using a separate side frame, but is not limited thereto.

한편, 본 발명에 의한 문틀(2)은 도 2와 같이, 난연보드(21)의 외면에 팽창보드(22)가 구비되고, 상기 팽창보드(22)의 외면에 난연보드(23)가 구비되어 구성된다. 즉, 상기 문틀(2) 역시 난연보드(21)(23) 및 팽창보드(22)에 의해, 차열, 비차열, 단열 및 내화성능을 나타내는 것이다.On the other hand, in the door frame 2 according to the present invention, as shown in FIG. 2 , the expansion board 22 is provided on the outer surface of the flame-retardant board 21 , and the flame-retardant board 23 is provided on the outer surface of the expansion board 22 , is composed That is, the door frame 2 also exhibits heat-shielding, non-thermal, heat-insulating and fire-resisting performance by the flame-retardant boards 21 and 23 and the expansion board 22 .

여기서, 상기 난연보드(21)(23)는 앞서 방화문 본체(1)를 구성하는 난연보드(221)와 그 구성이 동일하며, 상기 팽창보드(22)는 상기 방화문 본체(1)를 구성하는 팽창보드(222)와 그 구성이 동일한 것, 즉, 상기 난연보드(21)(23)은 상기 난연보드(221)는 제1 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되고, 상기 팽창보드(22)는 제2 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되는 것으로, 제1, 2 난연성 수지 조성물, 유리섬유, 제조방법, 각 구성의 결합방법 등은 이미 앞서 충분히 설명되었으므로, 상세한 설명은 생략한다.Here, the flame-retardant boards 21 and 23 have the same configuration as the flame-retardant board 221 constituting the fire door body 1 above, and the expansion board 22 is an inflatable constituting the fire door body 1 . The board 222 has the same configuration as the board 222, that is, the flame-retardant boards 21 and 23, the flame-retardant board 221 is made of glass fiber impregnated with the first flame-retardant resin composition, and the expansion board 22 ) is that the second flame-retardant resin composition is composed of impregnated glass fibers, and the first and second flame-retardant resin compositions, glass fibers, manufacturing methods, bonding methods of each configuration, etc. have already been sufficiently described above, detailed description is omitted. .

다만, 내화성, 차열성, 비차열성 등을 고려할 때, 상기 난연보드(23)의 두께는 1~3mm, 상기 팽창보드(22)의 두께는 1~3mm 정도임이 바람직하며, 나머지 중심부의 난연보드(22)는 방화문 본체(1)의 두께 및 문틀(2)의 형상을 고려하여 적절히 선택함이 바람직하다.However, in consideration of fire resistance, heat insulation, non-heat insulation, etc., it is preferable that the thickness of the flame-retardant board 23 is 1-3 mm, and the thickness of the expansion board 22 is about 1-3 mm, and the remaining central flame-retardant board ( 22) is preferably selected appropriately in consideration of the thickness of the fire door body 1 and the shape of the door frame 2 .

상기와 같은 방화문 본체(1) 및 문틀(2)로 구성되는 방화문(D)은, 앞서 설명된 바와 같이, 우수한 차열, 비차열, 단열 및 내화성능을 나타내면서도, 기계적 강도가 우수하며, 경량성이 우수하다는 특징이 있다. As described above, the fire door (D) composed of the fire door body (1) and the door frame (2) as described above has excellent mechanical strength and lightness while exhibiting excellent heat-shielding, non-thermal, heat-insulating and fire-resistance performance. This is an excellent feature.

이하, 본 발명을 구체적인 실시예를 통해 상세히 설명한다.Hereinafter, the present invention will be described in detail through specific examples.

(실시예 1)(Example 1)

발포 폴리우레탄 수지 70중량%, 난연재(탄산칼슘, 수산화알루미늄 및 붕산아연을 1:1:1 중량비로 혼합한 것, 입자 크기 2㎛) 15중량% 및 팽창흑연(입자 크기 2㎛) 15중량%를 혼합하고, 발포 및 성형하여 팽창폼을 제조하였다. 이때 발포 밀도는 80kg/㎥이었으며, 그 두께는 30mm였다. 70% by weight of expanded polyurethane resin, 15% by weight of flame retardant (a mixture of calcium carbonate, aluminum hydroxide and zinc borate in a 1:1:1 weight ratio, particle size 2㎛) 15% by weight of expanded graphite (particle size 2㎛) were mixed, foamed and molded to prepare an expanded foam. At this time, the foaming density was 80 kg/m 3 , and the thickness was 30 mm.

그리고 상기 팽창폼의 양면에 팽창보드(두께 1.5mm), 난연보드(두께 2mm), 팽창보드(두께 1.5mm), 합판(두께 3mm)을 차례로 샌드위치하여 방화문 본체를 완성하였다.Then, an expansion board (thickness 1.5mm), a flame-retardant board (thickness 2mm), an expansion board (thickness 1.5mm), and a plywood (thickness 3mm) were sequentially sandwiched on both sides of the inflatable foam to complete the fire door body.

아울러, 난연보드의 외면에 팽창보드(두께 2mm)를 부착하고, 이에 다시 난연보드(두께 2mm)를 부착하여 문틀을 제조하였다. In addition, an expansion board (thickness 2mm) was attached to the outer surface of the flame-retardant board, and a flame-retardant board (thickness 2mm) was attached thereto to manufacture a door frame.

상기 문틀 및 방화문 본체의 형상은 통상의 방화문과 동일하게 제조하였으며, 힌지, 손잡이 및 가스켓을 설치하여 결합하였다. The shape of the door frame and the main body of the fire door was manufactured in the same way as a conventional fire door, and a hinge, a handle, and a gasket were installed and combined.

이때, 상기 팽창보드는 수용성의 비스페놀 F형의 에폭시 수지 60중량%, 톨루엔 5중량%, 아민 경화제 2중량%, 난연재(탄산칼슘, 수산화알루미늄 및 붕산아연을 1:1:1 중량비로 혼합한 것, 입자 크기 2㎛) 15중량% 및 팽창흑연(입자 크기 2㎛) 20중량%을 혼합하여 제2 난연성 수지 조성물을 준비하고, 이에 물을 1:0.2 중량비로 첨가하여 점도를 조절한 후, 로빙 크로스(roving cloth) 형태의 유리섬유(570g/sq.m)를 1시간 동안 침지 후 꺼내고, 상기 함침 처리된 유리섬유 2개를 적층하고 40kgf/㎠ 정도의 압력으로 압축하고 70℃의 온도로 경화하고, 10℃로 냉각함으로써 제조하였다.At this time, the expansion board is a mixture of water-soluble bisphenol F-type epoxy resin 60% by weight, toluene 5% by weight, amine curing agent 2% by weight, and flame retardant (calcium carbonate, aluminum hydroxide and zinc borate in a 1:1:1 weight ratio) , particle size 2㎛) 15% by weight and expanded graphite (particle size 2㎛) to prepare a second flame-retardant resin composition by mixing 20% by weight, water is added to this in a 1:0.2 weight ratio to adjust the viscosity, and then roving Glass fiber (570 g/sq.m) in the form of a cross (roving cloth) is immersed for 1 hour, then taken out, the two impregnated glass fibers are laminated, compressed at a pressure of about 40 kgf/cm 2 , and cured at a temperature of 70 ° C. and cooled to 10°C.

상기 난연보드는 수용성의 멜라민 수지 64.5중량%, 톨루엔 5중량%, 염화암모늄 경화제 0.5중량%, 난연재(탄산칼슘, 수산화알루미늄 및 붕산아연을 1:1:1 중량비로 혼합한 것, 입자 크기 2㎛) 30중량%를 혼합하여 제1 난연성 수지 조성물을 준비하고, 이에 물을 1:0.2 중량비로 첨가하여 점도를 조절한 후, 이에 로빙 크로스(roving cloth) 형태의 유리섬유(570g/sq.m)를 1시간 동안 침지 후 꺼내고, 상기 함침 처리된 유리섬유 4개를 적층하여 80~100kgf/㎠ 정도의 압력으로 압축하고 130℃의 온도로 경화하고, 10℃로 냉각함으로써 제조하였다.The flame-retardant board is a water-soluble melamine resin 64.5% by weight, toluene 5% by weight, ammonium chloride curing agent 0.5% by weight, flame retardant (calcium carbonate, aluminum hydroxide and zinc borate in a 1:1:1 weight ratio mixture, particle size 2㎛ ) to prepare a first flame-retardant resin composition by mixing 30% by weight, and add water thereto in a weight ratio of 1:0.2 to adjust the viscosity, and then, thereto, glass fibers in the form of a roving cloth (570g/sq.m) was immersed for 1 hour and then taken out, laminated four of the impregnated glass fibers, compressed at a pressure of about 80-100 kgf/cm 2 , cured at a temperature of 130 ° C, and cooled to 10 ° C.

(시험예 1)(Test Example 1)

상기 실시예 1의 방화문에 대한 차열, 비차열, 차연성, 개폐력, 개폐 반복성, 비틀림 강도, 연직 하중강도, 내충격성에 대한 시험을 실시하였다. 상기 시험은 한국건설생활환경시험연구소에 의뢰하였으며, 그 결과는 도 4와 같았다.For the fire door of Example 1, tests were performed on heat shielding, non-thermal heat shielding, flammability, opening/closing force, opening/closing repeatability, torsional strength, vertical load strength, and impact resistance. The test was commissioned by the Korea Construction Living Environment Test Institute, and the results were as shown in FIG. 4 .

도 4에서 확인할 수 있는 바와 같이 본 발명에 의한 실시예 1은 우수한 차열, 비차열 성능을 보일 뿐 아니라, 비틀림 강도, 연직 하중강도, 내충격성 등의 기계적 물성이 우수함을 확인할 수 있었다.As can be seen in FIG. 4 , it was confirmed that Example 1 according to the present invention not only showed excellent heat and non-thermal performance, but also had excellent mechanical properties such as torsional strength, vertical load strength, and impact resistance.

아울러, 별도의 실험은 실시하지 않았지만, 유리섬유, 팽창폼, 목재 외측패널 등을 이용하였으므로, 경량성 역시 우수함은 당연하다.In addition, although a separate experiment was not conducted, since glass fiber, expanded foam, wooden outer panel, etc. were used, it is natural that lightness is also excellent.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 특허 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations are possible within the equivalent scope of the claims to be described.

1: 방화문 본체 2: 문틀
100: 외측패널 200: 내측패널
210: 팽창폼 220: 내화보드
21, 23, 221: 난연보드 22, 222: 팽창보드1: Fire door body 2: Door frame
100: outer panel 200: inner panel
210: expanded foam 220: fireproof board
21, 23, 221: flame retardant board 22, 222: expansion board

Claims (6)

삭제delete 방화문 본체(1)가 문틀(2)에 개폐 가능하게 설치되는 방화문(D)에 있어서,
상기 방화문 본체(1)는,
한 쌍의 외측패널(100)과 상기 외측패널(100) 사이에 배치되는 내측패널(200)로 구성되며,
상기 내측패널(200)은,
팽창폼(210)과,
상기 팽창폼(210)의 양면에 배치되며, 난연보드(221)의 양면에 팽창보드(222)가 구비된 내화보드(210)로 구성되되,
상기 팽창폼(210)은 난연재 및 팽창흑연 또는 팽창질석을 포함하는 열경화성 발포폼이고,
상기 난연보드(221)는 제1 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되고,
상기 팽창보드(222)는 제2 난연성 수지 조성물이 함침 처리된 유리섬유로 구성되며,
상기 문틀(2)은,
난연보드(21)의 외면에 팽창보드(22)가 구비되고, 상기 팽창보드(22)의 외면에 난연보드(23)가 구비되어 구성되는 것을 특징으로 하는 차열 방화문.
In the fire door (D), the fire door main body (1) is installed in the door frame (2) to be able to open and close,
The fire door body (1),
Consists of a pair of outer panels 100 and an inner panel 200 disposed between the outer panel 100,
The inner panel 200,
Inflatable foam 210 and,
It is disposed on both sides of the inflatable foam 210, and consists of a fireproof board 210 provided with an inflatable board 222 on both sides of the flame-retardant board 221,
The expanded foam 210 is a thermosetting foam comprising a flame retardant and expanded graphite or expanded vermiculite,
The flame-retardant board 221 is composed of glass fibers impregnated with a first flame-retardant resin composition,
The expansion board 222 is composed of glass fibers impregnated with a second flame retardant resin composition,
The door frame (2),
Heat shield fire door, characterized in that the expansion board 22 is provided on the outer surface of the flame retardant board (21), and the flame retardant board (23) is provided on the outer surface of the expansion board (22).
 제2항에 있어서,
상기 외측패널(100)은 합판 또는 MDF이고,
상기 팽창폼(210)은 난연재; 및 팽창흑연 또는 팽창질석;을 포함하는 우레탄 발포폼이며, 발포 밀도는 75~90kg/㎥이고,
상기 유리섬유는 로빙 크로스(roving cloth) 형태로서,
상기 난연보드(221)(21)(23) 및 상기 팽창보드(222)(23)는 모두 복수층의 함침 처리된 유리섬유로 구성됨을 특징으로 하는 차열 방화문.
3. The method of claim 2,
The outer panel 100 is plywood or MDF,
The expanded foam 210 is a flame retardant; And expanded graphite or expanded vermiculite; it is a urethane foam containing; the foam density is 75 ~ 90kg / ㎥,
The glass fiber is in the form of a roving cloth,
The flame-retardant boards 221, 21, 23 and the expansion boards 222 and 23 are all made of glass fibers impregnated in multiple layers.
 제2항 또는 제3항에 있어서,
상기 제1 난연성 수지 조성물은,
멜라민 수지 또는 페놀 수지; 경화제; 및 난연재;를 포함하고,
상기 제2 난연성 수지 조성물은,
에폭시 수지 또는 우레아 수지; 경화제; 난연재; 및 팽창흑연 또는 팽창질석;을 포함하는 것을 특징으로 하는 차열 방화문.
4. The method of claim 2 or 3,
The first flame-retardant resin composition,
melamine resin or phenolic resin; hardener; and a flame retardant;
The second flame retardant resin composition,
epoxy resin or urea resin; hardener; flame retardant; and expanded graphite or expanded vermiculite.
 제4항에 있어서,
상기 팽창폼(210), 상기 제1 난연성 수지 조성물 및 상기 제2 난연성 수지 조성물에 포함되는 난연재는,
석고, 황토, 탄산칼슘, 수산화알루미늄, 수산화마그네슘, 소성알루미나 및 붕산아연으로 이루어진 그룹 중 선택된 2종 이상의 것임을 특징으로 하는 차열 방화문.
5. The method of claim 4,
The flame retardant material included in the expanded foam 210, the first flame-retardant resin composition, and the second flame-retardant resin composition,
A heat-shielding fire door, characterized in that it is at least two selected from the group consisting of gypsum, loess, calcium carbonate, aluminum hydroxide, magnesium hydroxide, calcined alumina, and zinc borate.
 삭제delete
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