KR20100025343A - Method of forming polyurethane panel - Google Patents

Method of forming polyurethane panel Download PDF

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Publication number
KR20100025343A
KR20100025343A KR1020080084059A KR20080084059A KR20100025343A KR 20100025343 A KR20100025343 A KR 20100025343A KR 1020080084059 A KR1020080084059 A KR 1020080084059A KR 20080084059 A KR20080084059 A KR 20080084059A KR 20100025343 A KR20100025343 A KR 20100025343A
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South Korea
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filler
polyurethane
diisocyanate
weight
producing
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KR1020080084059A
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Korean (ko)
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전춘택
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전춘택
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Publication of KR20100025343A publication Critical patent/KR20100025343A/en

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    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • 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
    • B29B7/82—Heating or cooling
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29K2503/00—Use of resin-bonded materials as filler
    • B29K2503/04—Inorganic materials
    • B29K2503/08—Mineral aggregates, e.g. sand, clay or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: A polyurethane panel with a fire resisting property and a method of manufacturing thereof are provided to reduce the manufacturing time by foaming and curing a polyurethane prepolymer having hydrophilic property in short time using a high temperature moisture. CONSTITUTION: A method of manufacturing a polyurethane panel with a fire resisting property comprises the following steps of: preparing a filler by mixing 10~92 parts by weight of light weight aggregate with an average particle diameter of 0.1~10 nanometers, and 80~90 parts by weight of hydrophilic polyurethane prepolymer; spraying a heated moisture in 60~120 deg C to the filler; and foaming and curing the filler by inserting into a forming mold. The polyurethane prepolymer is preheated to 50~90 deg C at the step of preparing the filler.

Description

폴리우레탄 성형체 및 패널의 제조방법{METHOD OF FORMING POLYURETHANE PANEL}Manufacturing method of polyurethane molded body and panel {METHOD OF FORMING POLYURETHANE PANEL}

본 발명은 폴리우레탄 성형체 및 패널의 제조방법에 관한 것으로서, 더욱 상세하게는 경량 골재를 포함하여 내연성을 가지며, 발포 및 경화 시간이 매우 짧은 폴리우레탄 성형체 및 패널의 제조방법에 관한 것이다. The present invention relates to a method for producing a polyurethane molded body and a panel, and more particularly to a method for producing a polyurethane molded body and a panel having a flame resistance, including a lightweight aggregate, and very short foaming and curing time.

종래 건축용 패널은 그 내부에 충진제로 스치로폼입자판이나 폴리우레탄스폰지, 유리솜 등의 충진제를 양측 철판 사이에 삽입한 형태이다.Conventional building panels are filled with fillers such as styrofoam particle plates, polyurethane sponges, and glass wool as fillers therebetween.

그러나 상기와 같은 충진제의 재료들 중 스치로폼 입자판은 열에 매우 약하여 화재가 발생하게 되면 다량의 유독 가스가 발생하여 인명피해는 물론 재산상의 손실과 대기오염의 물질을 방출하여 환경의 파괴를 초래하게 된다. 또한 패널의 내부에 충진된 스티로폼은 그 수명이 4~5년으로 짧은 기간에 패널 내부의 충진효과가 급격히 저하되어 건축물의 약화는 물론 그 본래의 사용목적인 방음, 단열의 기능이 저하되는 단점이 있다.However, Schirofoam particle plate of the above filler material is very weak to heat, and if a fire occurs, a large amount of toxic gas is generated, resulting in damage to life, property damage and release of air pollution, resulting in environmental damage. . In addition, the styrofoam filled inside the panel has a short life span of 4 to 5 years, and the filling effect of the panel is rapidly reduced in a short period of time, resulting in a weakening of the building as well as the soundproofing and insulation of the original purpose of use. .

폴리우레탄을 충진제로 장착된 경우에도 열과 물에 약하고, 화재시 스티로폼과 마찬가지로 다량의 유해가스를 방출한다. 또한, 유리솜(글라스울)은 불연소재이 나 패널의 제조 공정과 설치 공정에서 유리가루의 분진이 발생함으로써 작업자가 유리가루의 분진을 흡입하게 되어 발암의 원인이 되며, 직업병을 유발하게 된다. Even when polyurethane is installed as a filler, it is vulnerable to heat and water, and in case of fire, it emits a large amount of harmful gas like styrofoam. In addition, glass wool (glass wool) is a non-combustible material or the manufacturing process and installation process of the glass powder dust generated in the installation process, the worker inhale the dust of the glass powder causes carcinogenesis, causing occupational diseases.

이와 같은 문제를 해결하기 위하여, 특허 공개번호 제10-2001-0102690호는 소성된 질석분말과 폴리우레탄계 바인더를 혼합하여 열간 프레스를 이용하여 180~250℃의 온도에서 10~20분 동안 압축하여 성형하는 공정이 기술되어 있으나 성형시간이 길다는 문제가 있었으며, 특허 공개번호 제10-2007-0072952호는 소성된 질석과 수분산 폴리우레탄 바인더를 혼합하여 제조는 방법이 개시되어 있으나, 성형하는 단계에서 수분에서 수십분이 소요되어 생산성이 떨어진다는 문제점이 있었다. In order to solve such a problem, Patent Publication No. 10-2001-0102690 is a mixture of calcined vermiculite powder and a polyurethane-based binder is formed by pressing for 10 to 20 minutes at a temperature of 180 ~ 250 ℃ using a hot press Although the process has been described, there was a problem that the molding time is long, and Patent Publication No. 10-2007-0072952 discloses a method of preparing a mixture of calcined vermiculite and a water-dispersed polyurethane binder, but in the forming step There was a problem that the productivity is reduced because it takes several minutes in a few minutes.

본 발명은 이러한 문제점을 해결하기 위하여 안출된 것으로서, 입도가 큰 경량 골재를 사용하여 내연성을 확보하고, 친수성을 가지는 폴리우레탄 프리폴리머를 고온의 수분과 반응시켜 짧은 시간 안에 발포 경화되도록 하여 제조시간을 단축할 수 있는 폴리우레탄 패널의 제조방법을 제공하는 것을 목적으로 한다. The present invention has been made to solve this problem, to secure flame resistance by using a lightweight aggregate having a large particle size, and to shorten the production time by allowing the polyurethane prepolymer having a hydrophilicity to react with high temperature moisture to foam and harden within a short time It is an object of the present invention to provide a method for producing a polyurethane panel.

본 발명은 전술한 문제점을 해결하기 위한 것으로서, 본 발명에 따르면 평균 입경 0.1-10㎜인 경량 골재 10-92중량부와 친수성 폴리우레탄 프리폴리머 8-90중량부를 혼합하여 충전재를 마련하는 단계; 60-120℃로 가열된 수분을 상기 충전재에 분사하는 단계; 상기 충전재를 성형 몰드에 투입하여 발포, 경화시키는 단계;를 포 함하는 폴리우레탄 성형체의 제조방법이 제공된다.The present invention is to solve the above-described problems, according to the present invention comprises the steps of preparing a filler by mixing 10-92 parts by weight of lightweight aggregate having an average particle diameter of 0.1-10 mm and 8-90 parts by weight of hydrophilic polyurethane prepolymer; Spraying the filler with moisture heated to 60-120 ° C .; Provided is a method for producing a polyurethane molded body comprising the; filling the foam into the molding mold, and curing.

또한, 평균 입경 0.1-10㎜인 경량 골재 10-92중량부와 친수성 폴리우레탄 프리폴리머 8-90중량부를 혼합하여 충전재를 마련하는 단계; 60-120℃로 가열된 수분을 상기 충전재에 분사하는 단계; 상기 충전재를 측면이 철판으로 형성된 패널구조물에 투입하여 발포, 경화시키는 단계; 상기 충전재가 발포, 경화된 패널구조물을 일정규격으로 절단하는 단계;를 포함하는 폴리우레탄 패널의 제조방법이 제공된다.In addition, preparing a filler by mixing 10-92 parts by weight of lightweight aggregate having an average particle diameter of 0.1-10 mm and 8-90 parts by weight of hydrophilic polyurethane prepolymer; Spraying the filler with moisture heated to 60-120 ° C .; Injecting the filler into a panel structure having a side plate formed of an iron plate, and then foaming and curing the filler; Provided is a method for producing a polyurethane panel comprising a; cutting the foamed, hardened panel structure to a predetermined standard.

본 발명에 따른 폴리우레탄 성형체 및 패널의 제조방법은 다음과 같은 효과가 있다.The method for producing a polyurethane molded article and panel according to the present invention has the following effects.

첫째, 가열된 수분을 사용하기 때문에 폴리우레탄이 발포 경화되는 시간이 짧아서 제조시간을 단축할 수 있다. First, since the time the polyurethane is foamed and cured is short because the heated water is used, the manufacturing time can be shortened.

둘째, 입도가 큰 경량 골재를 사용함으로써 폴리우레탄 성형체가 내연성을 갖는다.Second, the polyurethane molded body has flame resistance by using a lightweight aggregate having a large particle size.

넷째, 폴리우레탄 프리폴리머를 예열함으로써 폴리우레탄의 발포 경화 시간을 단축하여 제조시간을 단축할 수 있다. Fourth, by preheating the polyurethane prepolymer, it is possible to shorten the foam hardening time of the polyurethane and shorten the manufacturing time.

셋째, 친수성 폴리우레탄 프리폴리머를 사용하므로 가열된 수분과의 반응성이 좋아서 제조시간을 30초 이내로 단축할 수 있다. Third, since the hydrophilic polyurethane prepolymer is used, the reactivity with the heated moisture is good, and the manufacturing time can be shortened to 30 seconds or less.

이하, 본 발명에 대해서 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

본 발명에 따른 폴리우레탄 성형체의 제조방법 충전재를 마련하는 단계, 수 분을 상기 충전재에 분사하는 단계, 상기 충전재를 성형 몰드에 투입히여 발포, 경화되는 단계를 포함한다. A method of manufacturing a polyurethane molded product according to the present invention includes the steps of preparing a filler, injecting moisture into the filler, and injecting the filler into a molding mold, followed by foaming and curing.

충전재를 마련하는 단계에서는 평균 입경 0.1-10㎜인 경량 골재 10-92중량부와 50-90℃로 예열된 친수성 폴리우레탄 프리폴리머 8-90중량부를 혼합한다.In the step of preparing the filler, 10-92 parts by weight of the lightweight aggregate having an average particle diameter of 0.1-10 mm and 8-90 parts by weight of the hydrophilic polyurethane prepolymer preheated to 50-90 ° C are mixed.

경량 골재는 질석, 진주암, 화강암, 점토혈함, 규석, 화산력, 경석 및 흑요석으로 이루어진 군으로부터 선택된 어느 하나를 분쇄하거나, 둘 이상을 혼합·분쇄한 후, 800-1300℃에서 가열하여 발포한 후, 냉각하여 만들어진다. Lightweight aggregate is pulverized any one selected from the group consisting of vermiculite, pearlite, granite, clay blood box, silica, volcanic power, pumice and obsidian, or after mixing and grinding two or more, and then foaming by heating at 800-1300 ℃ It is made by cooling.

고온으로 가열하면, 질석, 진주암 등이 연화되고, 내부에 있던 결정수가 기화에 의하여 원래 크기의 6~7배 정도로 팽창하여 밀도가 떨어지게 된다. 이렇게 얻어진 경량 골재를 분쇄하여 0.1~10㎜인 굵은 알갱이만을 선별하여 사용한다. 입도가 0.1㎜이하인 경량 골재를 사용하면 내연성을 가지기 어려우므로 굵은 알갱이만을 사용한다.When heated to a high temperature, vermiculite, pearlite and the like soften, and the crystallized water expands to about 6 to 7 times its original size by evaporation, thereby decreasing its density. The light aggregate thus obtained is pulverized to use only thick grains of 0.1 to 10 mm. When using lightweight aggregate with particle size less than 0.1㎜, it is difficult to have flame resistance, so use only thick grains.

폴리우레탄 프리폴리머는 폴리에스테르-폴리올, 폴리에테르-폴리올, 디올 및 아민으로 이루어진 군으로부터 선택된 어느 하나 이상과 DMPA(dimethylol propionicacid)를 혼합하여 얻어지는 조성물(A)와 반응 후 잔존 NCO가 3-28중량%가 되도록 하는 과량의 디이소시아네이트(B)를 혼합한 후 잔존 NCO가 3-28중량%가 될 때까지 조성물(A)와 디이소시아네이트(B)를 반응시켜서 제조한다.Polyurethane prepolymer is 3-28% by weight of NCO remaining after reaction with composition (A) obtained by mixing at least one selected from the group consisting of polyester-polyols, polyether-polyols, diols and amines with dimethylol propionic acid (DMPA) It is prepared by mixing an excess of diisocyanate (B) to be a and then reacting the composition (A) and diisocyanate (B) until the remaining NCO is 3-28% by weight.

조성물(A)에 수분이 포함되어 있으면 함유된 수분이 디이소시아네이트(B)의 이소시아네이트기와 우레아 반응을 일으키므로 수분을 0.5중량%이하, 바람직하게는, 0.1중량%이라로 제거하여야 한다. 수분제거는 가열 또는 진공탈포 등의 통상의 방법에 의하여 실시하며, 조성물(A)와 디이소시아네이트(B)를 반응시켜 폴리우레탄 프리폴리머를 제조한 후에도 잔존 NCO와 수분의 반응을 막기 위해서 50-90℃로 예열된 건조 공기 또는 질소를 취입한다. If the composition (A) contains water, the contained water causes urea reaction with the isocyanate groups of the diisocyanate (B), so the water should be removed to 0.5% by weight or less, preferably 0.1% by weight. Water removal is carried out by a conventional method such as heating or vacuum degassing, and in order to prevent the reaction of residual NCO and water even after preparing the polyurethane prepolymer by reacting the composition (A) with the diisocyanate (B). Blow dry air or nitrogen preheated with

폴리에스테르-폴리올, 폴리에테르-폴리올 및 디올은 평균 히드록실수가 10-900㎎KOH/g이고, 히드록실 관능도가 1.5-6이며, 분자량이 140-20,000의 분자량을 갖는 것을 사용한다. 폴리올과 디올의 히드록실기는 디이소시아네이트의 이소시아네이트기와 우레탄반응을 일으킨다. Polyester-polyols, polyether-polyols and diols are those having an average hydroxyl number of 10-900 mgKOH / g, a hydroxyl functionality of 1.5-6 and a molecular weight of 140-20,000. The hydroxyl groups of polyols and diols cause urethane reactions with isocyanate groups of diisocyanates.

아민은 트리에틸렌디아민(TEDA), 디에틸렌트리아민(DETA), (PMDETA), (DMCHA), (TMHDA), 디메틸티오톨루엔디아민(DMTDA),4,4′-메틸렌-비스-(2-메틸아닐린)(MMA), 디에틸톨루엔디아민(DETDA), 4,4′-메틸렌-비스-(3-클로로-2.6-디에틸아닐린),(MCDEA),메틸렌-비스-오르토클로로아닐린(MBOCA), 4,4′-메틸렌-비스-(2.6-디에틸아닐린)(MDEA), 메틸렌디아닐린(MDA), 4,4′-메틸렌-비스-(2-클로로-6-에틸아닐린)(MCEA), Diethylamino propyl amine (DEAPA), Isophorone diamine (IPDA) 캐티민, 알디민 및 옥사졸리딘으로 이루어진 군으로부터 선택된 어느 하나 이상인 것을 사용한다. 아민과 디이소시아네이트와 반응하면 요소결합이 생기게 된다. Amines are triethylenediamine (TEDA), diethylenetriamine (DETA), (PMDETA), (DMCHA), (TMHDA), dimethylthiotoluenediamine (DMTDA), 4,4'-methylene-bis- (2-methyl Aniline) (MMA), diethyltoluenediamine (DETDA), 4,4'-methylene-bis- (3-chloro-2.6-diethylaniline), (MCDEA), methylene-bis-orthochloroaniline (MBOCA), 4,4'-methylene-bis- (2.6-diethylaniline) (MDEA), methylenedianiline (MDA), 4,4'-methylene-bis- (2-chloro-6-ethylaniline) (MCEA), Any one or more selected from the group consisting of diethylamino propyl amine (DEAPA), Isophorone diamine (IPDA) catamine, aldimine and oxazolidine is used. Reaction with amines and diisocyanates results in urea bonds.

DMPA는 2개의 -OH group과 -COOH를 가지고 있는 구조로서, -OH는 우레탄 결합을 하므로서 쇄연장제 역할을 하며, -COOH는 반대 전하를 갖는 중화제(보통 3급 amine)와의 이온결합을 통해 폴리우레탄 프리폴리머에 친수성을 부여하는 역할을 한다. DMPA is a structure having two -OH groups and -COOH. -OH acts as a chain extender by carrying out a urethane bond, and -COOH is poly-linked through an ionic bond with a neutralizing agent (usually tertiary amine) having a reverse charge. It serves to impart hydrophilicity to the urethane prepolymer.

DMPA를 용해하기 위한 용매로서 N 메틸 2 피롤리돈(NMP), 아세톤, 아농 중 하나 이상을 선택 혼합하여 사용할 수 있다. 이러한 용매는 폴리우레탄 프리폴리머의 점도를 조절하는 기능도 한다. As a solvent for dissolving DMPA, one or more of N methyl 2 pyrrolidone (NMP), acetone, and anon can be selected and mixed. Such solvents also serve to control the viscosity of the polyurethane prepolymer.

DMPA를 혼합하는 방법 이외에도 다른 아이오닉디올(ionic diol)을 사용하거나, 작용기의 화학 변형, 그라프팅 등의 방법으로 이온기를 도입하여, 친수성을 부여할 수 있다. In addition to the method of mixing DMPA, other ionic diols may be used, or ionic groups may be introduced by chemical modification or grafting of functional groups to impart hydrophilicity.

디이소시아네이트(B)는 조성물(A)와 반응 후 잔존 NCO가 3-28중량%가 되도록 과량을 첨가한다. 디이소시아네이트는 2,4-/2,6-톨루엔 디이소시아네이트, 디페닐메탄 디이소시아네이트, 2,4'-/4,4'-디페닐메탄디이소시아네이트, 사이크로헥산 디이소시아네이트, 이소포론 디이소시아네이트, 수소화 디페닐메탄 디이소시아네이트 및 1,6-헥사메틸렌 디이소시아네이트로 이루어진 군으로부터 선택된 어느 하나 이상인 것을 사용한다. The diisocyanate (B) is added in excess so that the remaining NCO is 3-28% by weight after the reaction with the composition (A). Diisocyanates include 2,4- / 2,6-toluene diisocyanate, diphenylmethane diisocyanate, 2,4 '-/ 4,4'-diphenylmethane diisocyanate, cyclohexane diisocyanate, isophorone diisocyanate, Any one or more selected from the group consisting of hydrogenated diphenylmethane diisocyanate and 1,6-hexamethylene diisocyanate is used.

폴리우레탄 프리폴리머에 2,4펜탄디온, 메탄슐폰산, 벤젠술폰산, 벤조일 클로라이드, 아세트산 및 인산으로 이루어진 군으로부터 선택된 어느 하나 이상으로 이루어진 반응 지연제를 조성물(A)와 디이소시아네이트(B)의 합계 중량을 기준으로 0.01~1중량% 추가로 할 수 있으며, 난연제, 산화방지제, 안료 등도 첨가할 수 있다.The total weight of the composition (A) and the diisocyanate (B) is added to the polyurethane prepolymer, wherein the reaction retardant consists of at least one selected from the group consisting of 2,4-pentanedione, methanesulfonic acid, benzenesulfonic acid, benzoyl chloride, acetic acid and phosphoric acid. 0.01 to 1% by weight may be added based on the above, flame retardants, antioxidants, pigments and the like can be added.

반응 지연제를 첨가함으로써 대기 중에서 수분을 흡수하여 디이소시아네이트와 수분이 반응하는 것을 지연할 수 있다. By adding a reaction retardant, water can be absorbed in the air to delay the reaction of the diisocyanate with water.

이와 같이 조성물(A)와 디이소시아네이트(B)를 반응시켜 제조한 폴리우레탄 프리폴리머를 50-90℃로 예열하고 경량골재와 혼합하여 충전재를 마련할 수 있다. 예열을 하면 발포, 경화 단계에서 반응시간을 단축할 수 있으며, 앞에서 언급한 바와 같이 잔존 NCO와 수분의 반응을 막을 수 있다.Thus, the polyurethane prepolymer prepared by reacting the composition (A) and the diisocyanate (B) may be preheated to 50-90 ° C. and mixed with the lightweight aggregate to prepare a filler. Preheating can shorten the reaction time in the foaming and curing stages and, as mentioned above, prevent the reaction of the remaining NCO and water.

다음으로 60-120℃로 가열된 수분을 상기 충전재에 분사하는 단계에 대해서 설명한다. 수분을 가열된 상태로 분사하는 것은 수분과 폴리우레탄 프리폴리머내의 잔존 NCO의 반응을 촉진하기 위한 것이다. Next, the step of spraying the water heated to 60-120 ℃ to the filler will be described. The spraying of the water in a heated state is intended to promote the reaction of the water with the remaining NCO in the polyurethane prepolymer.

마지막으로 상기 충전재가 성형 몰드에 투입되어 발포, 경화되는 단계에 대해서 설명한다. 가열된 수분이 충전재에 분사되면 빠른 속도로 반응이 진행되기 때문에 즉시 성형 몰드에 투입된다. 성형 몰드에 투입된 충전재는 분사된 고온의 수분과 반응하게 되어 발포 및 경화가 진행된다. 다시 설명하면, 충전재에 가열된 수분을 분사하면, 수분은 폴리우레탄 프리폴리머내에 존재하는 잔존 NCO와 우레아 반응을 일으키게 되며, 이 과정에서 CO2 가스가 발생하여 발포가 일어나면서 경화된다. 앞에서 설명한 바와 같이 폴리우레탄 프리폴리머는 친수성을 띄도록 처리되어 있으므로 수분이 용이하게 침투하여 반응이 빠르게 진행된다. 발포 및 경화가 30초 이내에 완료되므로 경화를 위한 별도의 유지시간이 필요 없어 제조시간이 매우 짧아진다는 큰 장점이 있다. 발포 및 경화시간을 더욱 단축하기 위해서는 성형 몰드를 20-120℃로 예열할 수 있다. Finally, a step in which the filler is poured into a molding mold and foamed and cured will be described. When heated moisture is injected into the filler, the reaction proceeds at a high speed and is immediately added to the molding mold. The filler injected into the molding mold reacts with the sprayed high temperature moisture, thereby expanding and curing. When words, when spraying the heated water in the filling material, water is causing a residual NCO urea reaction and present in the polyurethane prepolymer, and in the process CO 2 gas occurs, is cured while foaming up. As described above, the polyurethane prepolymer is treated to be hydrophilic, so moisture easily penetrates and the reaction proceeds rapidly. Since foaming and curing are completed within 30 seconds, there is no need for a separate holding time for curing, and thus a manufacturing time is very short. The molding mold can be preheated to 20-120 ° C. to further shorten the foaming and curing time.

폴리우레탄 패널의 경우에는 충전재를 측면이 철판으로 형성된 패널구조물에 투입하여 발포, 경화시킨 후, 충전재가 발포, 경화된 패널구조물을 일정규격으로 절단하여 제조할 수 있다. In the case of a polyurethane panel, the filler may be manufactured by cutting and filling a panel structure having a side plate formed of an iron plate, followed by foaming and curing.

이하의 본 발명을 실시예를 통하여 구체적으로 설명하지만 본 발명은 이들 실시예만으로 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited only to these Examples.

[실시예 1]Example 1

(친수성 폴리우레탄 프리폴리머의 제조 단계)(Preparation step of hydrophilic polyurethane prepolymer)

평균 히드록실수가 55㎎KOH/g이고, 히드록실 관능도 2인 폴리에스테르-폴리올(상품명:AK6005, 제조사:애경유화) 300g과 평균 히드록실수가 55㎎KOH/g이고, 히드록실 관능도 2인 폴리에틸렌글리콜(상품명:PEG-1000T, 제조사:그린소프트켐) 200g 을 각각 혼합하고, 여기에 친수성 유화제 dimethylol propionicacid(DMPA) 40g과, 용매 N 메틸 2 피롤리돈(NMP)(제조사 : 바스프) 40g을 혼합하여 녹이고, Dibutyl Tin Dilaurate(DBTDL)촉매(제조사 : 에어프로덕트) 3g을 혼합하여 유기 이온 폴리올를 얻었다. 300 g of polyester-polyol (brand name: AK6005, manufacturer: Aekyung Emulsification) having an average hydroxyl number of 55 mgKOH / g and a hydroxyl functionality of 2, and an average hydroxyl number of 55 mgKOH / g, having a hydroxyl functionality 200 g of two-membered polyethylene glycol (trade name: PEG-1000T, manufacturer: Green Soft Chem) were mixed, and 40 g of a hydrophilic emulsifier dimethylol propionic acid (DMPA) and a solvent N methyl 2 pyrrolidone (NMP) (manufacturer: BASF) 40 g of the mixture was dissolved, and 3 g of a dibutyl tin dilaurate (DBTDL) catalyst (manufacturer: air product) was mixed to obtain an organic ion polyol.

온도를 70℃로 승온하고 유기 이온 폴리올에 이소시아네트(MDI)(제조사 : 바스프) 400g을 적가하는 방법으로 서서히 투입하여 NCO 과잉의 프리폴리머를 얻었다. 여기에 아세톤 150g, 난연제(TCPP) 10g을 각각 혼합 희석하고, 온도를 40℃이하로 낮춘 후, 반응 지연제인 벤젠술폰산(제조사 :덕산화학) 6g, 점도조절제인 아세톤 350g을 투입 친수성 폴리우레탄 프리폴리머를 얻었다.The temperature was raised to 70 ° C. and 400 g of isocyanate (MDI) (manufactured by BASF) was added dropwise to the organic ion polyol to obtain an NCO excess prepolymer. 150 g of acetone and 10 g of flame retardant (TCPP) were mixed and diluted, and the temperature was lowered to 40 ° C. or lower. Then, 6 g of benzene sulfonic acid (manufacturer: Duksan Chemical), a reaction retardant, and 350 g of acetone, a viscosity modifier, were added to the hydrophilic polyurethane prepolymer. Got it.

(충전재의 제조 단계)(Manufacturing step of filler)

수분이 제거된 평균 직경 0.1-10mm인 진주암(제조사:미성산업) 3400g과 50-90℃로 예열한 상기 친수성 폴리우레탄 프리폴리머를 혼합을 하여 충전재를 마련하였다. A filler was prepared by mixing 3400 g of pearlite (manufacturer: Misung Industries) having an average diameter of 0.1-10 mm with water removed and the hydrophilic polyurethane prepolymer preheated to 50-90 ° C.

(가열된 수분을 충전재에 분사하는 단계)(Spraying heated moisture onto the filler)

측면이 철판으로 형성된 서랍식 패널 구조물에 상기 충전재를 투입하기 직전에 60-120℃로 가열된 수분을 분사하였다. 패널 구조물은 20-120℃로 예열하였다. 충전재의 반응 속도를 더 빠르게 하기 위함이다. The water heated to 60-120 ° C. was sprayed just before the filler was introduced into the drawer panel structure formed by the side plate. The panel structure was preheated to 20-120 ° C. This is to make the filler react faster.

(충전재를 성형 몰드에 투입하여 발포, 경화시키는 단계)(Step of filling the filling material into the molding mold to foam, harden)

가열된 수분이 분사된 충전재는 폐쇄된 패널 구조물 공간에서 신속히 발포 및 접합, 경화되었다. 성형 경화된 패널을 절단하는 공정을 통하여 폴리우레탄 패널을 제조할 수 있었다. The heated, water sprayed filler quickly foamed, bonded and cured in a closed panel structure space. Polyurethane panels could be manufactured through a process of cutting the molded and cured panels.

[실시예 2]Example 2

(친수성 폴리우레탄 프리폴리머의 제조 단계)(Preparation step of hydrophilic polyurethane prepolymer)

폴리프로필렌 폴리올(상품명:PP-1000, 제조사:한국폴리올) 180g, 폴리글리콜 폴리올(상품명:GP-1000, 제조사:한국폴리올) 120g, 폴리에틸렌글리콜(상품명:PET-1000T, 제조사:그린소프트켐) 200g, 친수성 유화제 dimethylol propionicacid(DMPA) 40g, 용매 N 메틸 2 피롤리돈(NMP)(제조사:바스프) 40g을 혼합하여 녹이고, Dibutyl Tin Dilaurate(DBTDL)촉매(제조사:에어프로덕트)를 폴리올 대비 0.6%인 3g을 혼합하여 유기아민을 만들고,Polypropylene polyol (brand name: PP-1000, manufacturer: Korea Polyol) 180 g, polyglycol polyol (brand name: GP-1000, manufacturer: Korea Polyol) 120 g, polyethylene glycol (brand name: PET-1000T, manufacturer: Green Soft Chem) 200 g 40 g of a hydrophilic emulsifier, dimethylol propionic acid (DMPA) and 40 g of solvent N methyl 2 pyrrolidone (NMP) (manufactured by BASF) are dissolved, and the dibutyl tin dilaurate (DBTDL) catalyst (manufacturer: air product) is 0.6% of the polyol. 3g is mixed to make an organic amine,

상기 유기아민에 4.4-메틸렌디이소시아네트(MDI) 450g을 적가하는 방법으로 70∼90℃에서 투입하여 반응시켜 NCO과잉의 프리폴리머를 만들고, 아세톤 500g, 난연제인 TCPP 10g, 반응지연제인 2,4 펜탄디온 6g을 각각 투입하고, 잔존NCO가 10%가 되도록 트리에틸아민 25g을 추가로 투입하여 친수성 폴리우레탄 프리폴리머를 얻었다.450 g of 4.4-methylenediisocyananet (MDI) was added dropwise to the organic amine at 70-90 ° C. to make an NCO excess prepolymer, 500 g of acetone, 10 g of TCPP as a flame retardant, and 2,4 pentane as a reaction retardant. 6 g of dione was added, and 25 g of triethylamine was further added so that the remaining NCO was 10% to obtain a hydrophilic polyurethane prepolymer.

(충전재의 제조 단계)(Manufacturing step of filler)

수분이 제거된 평균 직경 0.1-10mm인 진주암(제조사:미성산업) 3400g과 50-90℃로 예열한 상기 친수성 폴리우레탄 프리폴리머를 혼합을 하여 충전재를 마련하였다. A filler was prepared by mixing 3400 g of pearlite (manufacturer: Misung Industries) having an average diameter of 0.1-10 mm with water removed and the hydrophilic polyurethane prepolymer preheated to 50-90 ° C.

(가열된 수분을 충전재에 분사하는 단계) (Spraying heated moisture onto the filler)

측면이 철판으로 형성된 서랍식 패널 구조물에 상기 충전재를 투입하기 직전에 60-120℃로 가열된 수분을 분사하였다. 패널 구조물은 20-120℃로 예열하였다. 충전재의 반응 속도를 더 빠르게 하기 위함이다. The water heated to 60-120 ° C. was sprayed just before the filler was introduced into the drawer panel structure formed by the side plate. The panel structure was preheated to 20-120 ° C. This is to make the filler react faster.

(충전재를 성형 몰드에 투입하여 발포, 경화시키는 단계)(Step of filling the filling material into the molding mold to foam, harden)

가열된 수분이 분사된 충전재는 폐쇄된 패널 구조물 공간에서 신속히 발포 및 접합, 경화되었다. 성형 경화된 패널을 절단하는 공정을 통하여 폴리우레탄 패널을 제조할 수 있었다. The heated, water sprayed filler quickly foamed, bonded and cured in a closed panel structure space. Polyurethane panels could be manufactured through a process of cutting the molded and cured panels.

[실시예 3]Example 3

(친수성 폴리우레탄 프리폴리머의 제조 단계)(Preparation step of hydrophilic polyurethane prepolymer)

제1단계에서 폴리에스테르-폴리올(AK6005)을 사용하지 않고 폴리폴리에틸렌글리콜(PET-1000T)〔그린소프트켐〕을 단독으로 500g 사용하였으며, 나머지는 실시예 1과 동일하다.In the first step, 500g of polypolyethylene glycol (PET-1000T) [Green Soft Chem] was used alone without using polyester-polyol (AK6005), and the rest is the same as in Example 1.

(충전재의 제조 단계)(Manufacturing step of filler)

경량 골재로 소성된 질석을 사용하였으며, 나머지는 실시예 1과 동일하다.Vermiculite calcined with lightweight aggregate was used, and the rest is the same as in Example 1.

(가열된 수분을 충전재에 분사하는 단계)(Spraying heated moisture onto the filler)

측면이 철판으로 형성된 서랍식 패널 구조물에 상기 충전재를 투입하기 직전에 60-120℃로 가열된 수분을 분사하였다. 패널 구조물은 20-120℃로 예열하였다. 충전재의 반응 속도를 더 빠르게 하기 위함이다. The water heated to 60-120 ° C. was sprayed just before the filler was introduced into the drawer panel structure formed by the side plate. The panel structure was preheated to 20-120 ° C. This is to make the filler react faster.

(충전재를 성형 몰드에 투입하여 발포, 경화시키는 단계)(Step of filling the filling material into the molding mold to foam, harden)

가열된 수분이 분사된 충전재는 폐쇄된 패널 구조물 공간에서 신속히 발포 및 접합, 경화되었다. 성형 경화된 패널을 절단하는 공정을 통하여 폴리우레탄 패널을 제조할 수 있었다. The heated, water sprayed filler quickly foamed, bonded and cured in a closed panel structure space. Polyurethane panels could be manufactured through a process of cutting the molded and cured panels.

실시예 1 내지 3에 의해서 제조된 폴리우레탄 패널을 내연성을 있으며, 발포 및 경화 시간이 30초 이내로 매우 우수한 결과를 얻을 수 있었다. The polyurethane panels prepared by Examples 1 to 3 were flame resistant and very excellent results were obtained within 30 seconds of foaming and curing time.

표 1에는 실시예 1 내지 3에서 사용된 충전재의 조성을 나타내었다. Table 1 shows the composition of the filler used in Examples 1 to 3.

구분division 실시예 . 1EXAMPLE One 실시예 . 2EXAMPLE 2 실시예 . 3EXAMPLE 3 품 명Product Name 사용량(g)Usage (g) 품명Product Name 사용량(g)Usage (g) 품명Product Name 사용량(g)Usage (g) 디올 또는 폴리올Diols or polyols AK6005AK6005 300300 PP1000PP1000 180180 PEG1000TPEG1000T 500500 PEG1000TPEG1000T 200200 GP1000GP1000 120120 PET1000TPET1000T 200200 친수성 유화제Hydrophilic emulsifiers DMPADMPA 4040 DMPADMPA 4040 DMPADMPA 4040 용매menstruum NMPNMP 4040 NMPNMP 4040 NMPNMP 4040 촉매catalyst DBTDLDBTDL 33 DBTDLDBTDL 33 DBTDLDBTDL 33 디이소시아네이트Diisocyanate MDIMDI 400400 MDIMDI 450450 MDIMDI 400400 점도조절제Viscosity Modifier 아세톤Acetone 500500 아세톤Acetone 500500 아세톤Acetone 500500 난연제Flame retardant TCPPTCPP 1010 TCPPTCPP 1010 TCPPTCPP 1010 아민Amine 트리에틸렌 디아민Triethylene diamine 25 25 반응 지연제Reaction retardant 벤젠술폰산Benzenesulfonic Acid 66 2.4펜탄디온2.4pentanedione 66 벤젠술폰산Benzenesulfonic Acid 66 경량 골재Lightweight aggregate 소성된 진주암Calcined Perlite 34003400 소성된 진주암Calcined Perlite 34003400 소성된 질석Calcined Vermiculite 34003400

Claims (12)

폴리우레탄 성형체의 제조방법에 있어서, In the method for producing a polyurethane molded article, 평균 입경 0.1-10㎜인 경량 골재 10-92중량부와 친수성 폴리우레탄 프리폴리머 8-90중량부를 혼합하여 충전재를 마련하는 단계; Preparing a filler by mixing 10-92 parts by weight of the lightweight aggregate having an average particle diameter of 0.1-10 mm and 8-90 parts by weight of the hydrophilic polyurethane prepolymer; 60-120℃로 가열된 수분을 상기 충전재에 분사하는 단계;Spraying the filler with moisture heated to 60-120 ° C .; 상기 충전재를 성형 몰드에 투입하여 발포, 경화시키는 단계;Injecting the filler into a molding mold and foaming and curing the filler; 를 포함하는 폴리우레탄 성형체의 제조방법.Method for producing a polyurethane molded body comprising a. 제1항에 있어서,The method of claim 1, 상기 충전재를 마련하는 단계에서,In the step of preparing the filler, 상기 폴리우레탄 프리폴리머는 50-90℃로 예열된 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The polyurethane prepolymer is a method of producing a polyurethane molded body, characterized in that preheated to 50-90 ℃. 제1항에 있어서,The method of claim 1, 상기 충전재를 상기 성형 몰드에 투입하여 발포, 경화시키는 단계에 있어서,In the step of injecting the filler into the molding mold foaming, hardening, 상기 성형 몰드는 20-120℃로 예열된 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The molding mold is a method of producing a polyurethane molded body, characterized in that preheated to 20-120 ℃. 제1항에 있어서,The method of claim 1, 상기 골재는 질석, 진주암, 화강암, 점토혈함, 규석, 화산력, 경석 및 흑요석으로 이루어진 군으로부터 선택된 어느 하나를 분쇄하거나, 둘 이상을 혼합·분쇄한 후, 800-1300℃에서 가열하여 발포한 후, 냉각하여 만들어지는 경량 발포 골재인 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The aggregate is pulverized any one selected from the group consisting of vermiculite, pearlite, granite, clay blood box, silica, volcanic power, pumice and obsidian, or after mixing and grinding two or more, and then foamed by heating at 800-1300 ℃ Method for producing a polyurethane molded product, characterized in that the lightweight foamed aggregate is made by cooling. 제1항에 있어서,The method of claim 1, 상기 폴리우레탄 프리폴리머는,The polyurethane prepolymer, 폴리에스테르-폴리올, 폴리에테르-폴리올, 디올 및 아민으로 이루어진 군으로부터 선택된 어느 하나 이상과 DMPA(dimethylol propionicacid)를 혼합하여 얻어지는 조성물(A)와 반응 후 잔존 NCO가 3-28중량%가 되도록 하는 과량의 디이소시아네이트(B)를 혼합한 후 Excess such that the remaining NCO is 3-28% by weight after reaction with the composition (A) obtained by mixing at least one selected from the group consisting of polyester-polyols, polyether-polyols, diols and amines with dimethylol propionic acid (DMPA) After mixing diisocyanate (B) 잔존 NCO가 3-28중량%가 될 때까지 조성물(A)와 디이소시아네이트(B)를 반응시켜서 제조되는 친수성 폴리우레탄 프리폴리머인 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.A method for producing a polyurethane molded product, characterized in that the hydrophilic polyurethane prepolymer produced by reacting the composition (A) and the diisocyanate (B) until the remaining NCO is 3-28% by weight. 제5항에 있어서,The method of claim 5, 상기 폴리에스테르-폴리올, 폴리에테르-폴리올 및 디올은 평균 히드록실수가 10-900㎎KOH/g이고, 히드록실 관능도가 1.5-6이며, 분자량이 140-20,000의 분자량을 갖는 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The polyester-polyol, polyether-polyol, and diol have an average hydroxyl number of 10-900 mgKOH / g, a hydroxyl function of 1.5-6, and a molecular weight of 140-20,000. Method for producing a polyurethane molded body. 제5항에 있어서,The method of claim 5, 상기 아민은 트리에틸렌디아민(TEDA), 디에틸렌트리아민(DETA), (PMDETA), (DMCHA), (TMHDA), 디메틸티오톨루엔디아민(DMTDA),4,4′-메틸렌-비스-(2-메틸아닐린)(MMA), 디에틸톨루엔디아민(DETDA), 4,4′-메틸렌-비스-(3-클로로-2.6-디에틸아닐린),(MCDEA),메틸렌-비스-오르토클로로아닐린(MBOCA), 4,4′-메틸렌-비스-(2.6-디에틸아닐린)(MDEA), 메틸렌디아닐린(MDA), 4,4′-메틸렌-비스-(2-클로로-6-에틸아닐린)(MCEA), Diethylamino propyl amine (DEAPA), Isophorone diamine (IPDA) 캐티민, 알디민 및 옥사졸리딘으로 이루어진 군으로부터 선택된 어느 하나 이상인 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The amine is triethylenediamine (TEDA), diethylenetriamine (DETA), (PMDETA), (DMCHA), (TMHDA), dimethylthiotoluenediamine (DMTDA), 4,4'-methylene-bis- (2- Methylaniline) (MMA), Diethyltoluenediamine (DETDA), 4,4'-methylene-bis- (3-chloro-2.6-diethylaniline), (MCDEA), methylene-bis-orthochloroaniline (MBOCA) , 4,4'-methylene-bis- (2.6-diethylaniline) (MDEA), methylenedianiline (MDA), 4,4'-methylene-bis- (2-chloro-6-ethylaniline) (MCEA) And diethylamino propyl amine (DEAPA), Isophorone diamine (IPDA) catamine, aldimine and oxazolidine. 제5항에 있어서,The method of claim 5, 상기 디이소시아네이트는 2,4-/2,6-톨루엔 디이소시아네이트, 디페닐메탄 디이소시아네이트, 2,4'-/4,4'-디페닐메탄디이소시아네이트, 사이크로헥산 디이소시아네이트, 이소포론 디이소시아네이트, 수소화 디페닐메탄 디이소시아네이트 및 1,6-헥사메틸렌 디이소시아네이트로 이루어진 군으로부터 선택된 어느 하나 이상인 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The diisocyanate is 2,4- / 2,6-toluene diisocyanate, diphenylmethane diisocyanate, 2,4 '-/ 4,4'-diphenylmethane diisocyanate, cyclohexane diisocyanate, isophorone diisocyanate , At least one selected from the group consisting of hydrogenated diphenylmethane diisocyanate and 1,6-hexamethylene diisocyanate. 제5항에 있어서,The method of claim 5, 상기 폴리우레탄 프리폴리머는 2,4펜탄디온, 메탄슐폰산, 벤젠술폰산, 벤조일 클로라이드, 아세트산 및 인산으로 이루어진 군으로부터 선택된 어느 하나 이상 으로 이루어진 반응 지연제를 조성물(A)와 디이소시아네이트(B)의 합계 중량을 기준으로 0.01~1중량% 추가로 포함하는 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The polyurethane prepolymer comprises a reaction retardant composed of at least one selected from the group consisting of 2,4-pentanedione, methanesulfonic acid, benzenesulfonic acid, benzoyl chloride, acetic acid and phosphoric acid, and the sum of the composition (A) and the diisocyanate (B). Method for producing a polyurethane molded product, characterized in that it further comprises 0.01 to 1% by weight based on the weight. 제5항에 있어서,The method of claim 5, 상기 폴리우레탄 프리폴리머는 난연제를 추가로 포함하는 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The polyurethane prepolymer is a method for producing a polyurethane molded body, characterized in that it further comprises a flame retardant. 제5항에 있어서,The method of claim 5, 상기 폴리우레탄 프리폴리머는 산화방지제를 추가로 포함하는 것을 특징으로 하는 폴리우레탄 성형체의 제조방법.The polyurethane prepolymer is a method for producing a polyurethane molded product, characterized in that it further comprises an antioxidant. 폴리우레탄 패널의 제조방법에 있어서,In the manufacturing method of the polyurethane panel, 평균 입경 0.1-10㎜인 경량 골재 10-92중량부와 친수성 폴리우레탄 프리폴리머 8-90중량부를 혼합하여 충전재를 마련하는 단계; Preparing a filler by mixing 10-92 parts by weight of the lightweight aggregate having an average particle diameter of 0.1-10 mm and 8-90 parts by weight of the hydrophilic polyurethane prepolymer; 60-120℃로 가열된 수분을 상기 충전재에 분사하는 단계;Spraying the filler with moisture heated to 60-120 ° C .; 상기 충전재를 측면이 철판으로 형성된 패널구조물에 투입하여 발포, 경화시키는 단계;Injecting the filler into a panel structure having a side plate formed of an iron plate, and then foaming and curing the filler; 상기 충전재가 발포, 경화된 패널구조물을 일정규격으로 절단하는 단계;를 포함하는 폴리우레탄 패널의 제조방법.Method of manufacturing a polyurethane panel comprising a; cutting the foamed, hardened panel structure to a predetermined standard.
KR1020080084059A 2008-08-27 2008-08-27 Method of forming polyurethane panel KR20100025343A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101142754B1 (en) * 2010-07-30 2012-05-04 이장근 A humidity curing type adhesive composition for an auto-headliner
KR101535270B1 (en) * 2014-06-12 2015-07-08 주식회사 티원이엔씨 Automatic multi-functional curtain apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101142754B1 (en) * 2010-07-30 2012-05-04 이장근 A humidity curing type adhesive composition for an auto-headliner
KR101535270B1 (en) * 2014-06-12 2015-07-08 주식회사 티원이엔씨 Automatic multi-functional curtain apparatus

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