KR950006862B1 - Preparation of panelusing gmt(s.m.c.) sheet and p.i.r. foam - Google Patents

Preparation of panelusing gmt(s.m.c.) sheet and p.i.r. foam Download PDF

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Publication number
KR950006862B1
KR950006862B1 KR1019910019548A KR910019548A KR950006862B1 KR 950006862 B1 KR950006862 B1 KR 950006862B1 KR 1019910019548 A KR1019910019548 A KR 1019910019548A KR 910019548 A KR910019548 A KR 910019548A KR 950006862 B1 KR950006862 B1 KR 950006862B1
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South Korea
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sheet
foam
gmt
inner plate
present
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KR1019910019548A
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Korean (ko)
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KR930009763A (en
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배순직
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배순직
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B32B17/04Layered 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

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  • Laminated Bodies (AREA)

Abstract

An inner plate(1) comprised P.I.R.(Rigid Polyisocyanate) foam was wound with G.M.T.(Glass fiber Mat reinforced Thermoplastic) sheet to form an outer cover(2). After built-in the wound plate in the mold(5, 5a), it was pressurized at 130-170 degree C, 35 kg/cm2-180 kg/cm2 for 30 sec/mm-240 sec/mm. The inner plate(1) and the outer cover(2) were unitedly binded to give the panel.

Description

G.M.T(S.M.C)시이트와 P.I.R폼을 이용한 판넬의 제조방법Method for manufacturing panel using G.M.T (S.M.C) sheet and P.I.R foam

제1도는 본 발명의 제조 공정의 과정도.1 is a process diagram of the manufacturing process of the present invention.

제2도는 본 발명의 제조 공정에 의하여 얻어진 제품의 단면도.2 is a cross-sectional view of a product obtained by the manufacturing process of the present invention.

제3도는 제2도의 “A”부의 확대도.FIG. 3 is an enlarged view of part “A” of FIG. 2.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 속판 2 : 외피1: 2 plates: outer jacket

3 : 면판 4 : 두께3: faceplate 4: thickness

5,5a : 금형 6 : 완제품5,5a: mold 6: finished product

본 발명은 연질성으로 비교적 외압에는 약하나 두께를 형성할 수 있는 P.I.R(판넬)폼을 속판으로 하여 그 외주면에, 경질성으로 외압에는 강하나 두께의 형성이 불가능한 G.M.T시이트를 시이트성형물질(Sheet Molding Compound : S.M.C)로 사용하여 외피가 되도록 둘러감은 다음 금형체내에 넣고 적정 온도와 시간으로 압력을 가하여 주므로서 P.I.R폼인 속판의 외면부에 G.M.T시이트인 외피가 용융 접착되어 일체화하여 얻을 수 있도록 하는 G.M.T(S.M.C)시이트아 P.I.R폼을 이용한 판넬의 제조 방법에 관한 것이다.The present invention is flexible and relatively weak to external pressure but PIR (panel) form that can form a thickness of the inner plate, the outer peripheral surface, the rigidity of GMT sheet that is hard to external pressure but the thickness is not formed sheet molding compound (Sheet Molding Compound) : GMT (SMC) which can be obtained by integrating the outer shell of GMT sheet into the outer surface of the inner plate of PIR foam by integrating it into the mold body and applying pressure at the appropriate temperature and time by using it as the outer shell. The present invention relates to a method for manufacturing a panel using sheet PIR foam.

본 발명은 건축 및 가구용 자재나 일반구조물의 원자재로 사용하는 것으로서 사용시에 내구성이 양호하여 외압에 의한 힘의 균형을 유지하여 찌그러지거나 부서지는 일이 없이 항상 원형의 상태를 유지할 수 있도록 하며, 내습성과 방음성, 내부식성, 난연성 및 내마모성을 양호하게 하며, 단순 공정에 의하여 용이하게 제조하여 제조원가를 절가할 수 있으며, 외관이 미려한 신제품을 제공하고자 함에 주안점을 둔 것이다.The present invention is used as a raw material of building and furniture materials or general structures, so that the durability is good at the time of use, so that the balance of force due to external pressure can be maintained, so that it can always be kept in a circular state without being crushed or broken. Sound insulation, corrosion resistance, flame retardancy and abrasion resistance is good, can be easily manufactured by a simple process to reduce the manufacturing cost, and the point is to provide a new product with a beautiful appearance.

종래에 G.M.T시이트의 제품 형상에 따른 필요한 성형압력과 온도 및 시간을 다음의 표 1, 표 2에 나타내었고, 기존의 P.I.R폼의 특성을 표 3에 나타내었다.Conventionally, the required molding pressure, temperature, and time according to the product shape of the G.M.T sheet are shown in Tables 1 and 2 below, and the characteristics of the conventional P.I.R foams are shown in Table 3.

[표 1]TABLE 1

G.M.T시이트의 성형압력Forming pressure of G.M.T sheet

[표 2]TABLE 2

G.M.T시이트의 성형온도 및 시간Molding temperature and time of G.M.T sheet

상기 표 1과 표 1와 같이 하여 생산되는 G.M.T시이트는 예민한 특성으로 인하여 두께가 0.5㎜-6㎜정도로 밖에 생산하지 못하였다.G.M.T sheet produced as shown in Table 1 and Table 1 was produced only 0.5mm-6mm thick due to the sensitive properties.

그 이유에 있어서는 예를들어 20㎜의 두께로 생산하고자 하면 제품의 중앙부까지 160℃의 온도를 전달하여 주어야 되는데 제품의 중앙부까지 160℃의 온도가 전달되려면 약 7분 내외의 시간이 소요되어야 한다.For this reason, for example, if you want to produce a thickness of 20㎜ to deliver a temperature of 160 ℃ to the center of the product to take a time of about 7 minutes to deliver a temperature of 160 ℃ to the center of the product.

이때 제품의 표면의 온도는 이미 180℃-190℃를 상회하게 되므로 열을 받은 금형에서 가장 가까운 표면은 열의 과다로 인하여 적정한 강도를 유지할 수 없고, 부식되는 속도 및 마모되는 속도가 빠르며, 두께가 두꺼워짐에 따라 무거워지는 등의 문제점이 발생하여 6㎜이상으로는 생산할 수 없으며, 또한 생산한다고 하더라도 제조원가가 높아져 비경제적이므로 효용가치가 없는 등의 결점이 있었다.At this time, the temperature of the surface of the product is already higher than 180 ℃ -190 ℃, so the closest surface in the heated mold cannot maintain proper strength due to excess heat, the corrosion rate and the rate of wear are fast, and the thickness is thick. Problems such as heavy, depending on the load occurs, it can not produce more than 6㎜, and even if the production cost is high because it is uneconomical, there is a lack of utility value.

[표 3]TABLE 3

P.I.R폼(RIGID POLYISOCYANTE FOAM)의 제품특성Product characteristics of P.I.R foam (RIGID POLYISOCYANTE FOAM)

상기 표 3에 의한 실형에 의하면 P.I.R폼을 금형 내에서 G.M.T시이트가 성형될 수 있는 열과 압력을 가하였으나 P.I.R폼의 형태가 전혀 변하지 않았다.According to the actual mold according to Table 3, the P.I.R foam was subjected to heat and pressure to form the G.M.T sheet in the mold, but the P.I.R foam was not changed at all.

따라서, 발포된 수지라 하더라도 일정한 공간속에서는 상ㆍ하, 좌ㆍ우의 전체면에 골고루 높은 압력을 받는다 하더라도 그 형태는 전혀 변하지 않았다.Therefore, even in the case of the foamed resin, the shape of the foamed resin did not change at all even if high pressure was applied evenly to the entire surface of the upper, lower, left and right sides.

그러나 힘의 균형이 어느 한쪽으로 치우치게 되면(한쪽이 터졌을때) 그 형태는 찌그러지거나 부서지게 되는 결점이 있었다.But if the balance of power is biased to one side (when one side is broken), the form is crushed or broken.

본 발명은 종래에 제안되고 있는 G.M.T시이트와 P.I.R폼을 이용하여 서로의 장단점을 상호 보안할 수 있도록 결합하므로서 보다 경제적이고 효용가치가 높은 제품을 제공할 수 있도록 제안된 것으로 본 발명을 얻기 위한 제조공정의 과정도에 의하여 상세히 설명하면 다음과 같다.The present invention has been proposed to provide a more economical and high utility value products by combining the GMT sheet and PIR foam proposed in the prior art to secure each other advantages and disadvantages of the manufacturing process for obtaining the present invention. When described in detail by the process of the following.

본 발명을 얻기 위하여 사용되고 있는 G.M.T시이트(GLASS FIBER MAT REIN FORCED THERMO-PLASTIC)은 시이트성형물질로서 불포화 풀리에스텔수지에 촉진재, 촉매, 이형재등을 혼합한 화합물에 Glass Chopped Strand를 함침보강시킨 다음, 화학적으로 점도를 높이어 점착성이 좋고 성형성이 뛰어난 Sheet상 F.R.P 복합형 재료인 것이며, 경질성으로서 제품화를 위한 두께를 형성하기에는 부적합한 것이다.GMT sheet (GLASS FIBER MAT REIN FORCED THERMO-PLASTIC) used to obtain the present invention is a sheet molding material, impregnated and reinforced with glass chopped strand in a compound mixed with an unsaturated pulley resin, a promoter, a catalyst, a release material, and the like. It is a sheet-like FRP composite material that has high viscosity and is excellent in adhesion and moldability, and is not suitable for forming a thickness for commercialization due to its rigidity.

또한, P.I.R폼은 비교적 연질성으로서 두께를 형성하는 제품화는 외압에 약하다는 문제점이 있다.In addition, P.I.R foam is relatively soft, and there is a problem in that the commercialization of forming a thickness is weak to external pressure.

따라서, 본 발명은 P.I.R폼으로 필요에 따라 적당한 면과(3)과 두께(4)를 형성하는 속판(1)을 형성하여, 그외면부인 표면전체를 G.M.T시이트로서 둘러감아 외피(2)가 되도록 형성시킨 다음 스팀등의 가열장치가 설치된 금형(5),(5a)내에 내설하여 130℃-170℃의 온도로서 30초/㎜-240초/㎜ 시간동안 35KG/Cm2-180KG/Cm2의 압력을 가하여 주므로서, 속판(1)의 외면부인 표면전체에 G.M.T시이트인 외피(2)가 용융 접착되어 일체화되는 본 발명의 제품(6)을 얻을 수 있는 것이다.Accordingly, the present invention forms the inner plate 1 which forms the appropriate surface 3 and the thickness 4 as PIR foam as necessary, and wraps the entire surface, which is the outer surface portion, with the GMT sheet to form the outer shell 2. After forming, it was installed in a mold (5) or (5a) provided with a heating device such as steam, and then heated to 130 ° C-170 ° C for 30 seconds / mm-240 seconds / mm for a time of 35KG / Cm 2 -180KG / Cm 2 . By applying pressure, it is possible to obtain the product 6 of the present invention in which the outer shell 2, which is a GMT sheet, is melt-bonded and integrated on the entire surface, which is the outer surface portion of the inner plate 1.

도면중 미설명 부호 7은 금형(5),(5a)에 설치된 스팀가열장치의 스팀 통로를 표시한 것이다.In the figure, reference numeral 7 denotes a steam passage of the steam heating apparatus installed in the molds 5 and 5a.

이와같은 본 발명은 P.I.R폼으로 필요에 따라 적당한 크기와 두께를 형성하여 속판(1)을 형성한 다음 속판(1)의 외면부에 G.M.T시이트를 둘러감아 외피(2)를 형성시킨 상태로 금형(5),(5a)내에 내설시킨 다음 적정한 온도와 시간동안 가열 가압하여 주므로서 속판(1)에 둘러감은 외피(2)가 속판(1)의 외면부인 표면전체에 균일한 압력을 받으면서 강력하게 용융 접착되게 되어 속판(1)과 외피(2)인 P.I.R폼과 G.M.T시이트가 일체화로 되는 본 발명의 판넬제품(6)을 얻을 수 있는 것이다.As described above, the present invention forms the inner plate 1 by forming an appropriate size and thickness according to the PIR foam, and then surrounds the GMT sheet on the outer surface of the inner plate 1 to form the outer shell 2. 5) The inner shell (2) enclosed in (5a) and then heated and pressurized for an appropriate temperature and time are melted strongly under uniform pressure on the entire surface of the outer surface of the inner plate (1). It is possible to obtain the panel product 6 of the present invention in which the PIR foam and the GMT sheet, which are the inner plate 1, the outer shell 2, are integrated together.

이와같이 된 본 발명은 P.I.R폼과 G.M.T시이트의 특성의 장단점이 상호 보완하여 일체화로서 결합시켜 얻어지는 제품으로서 내구성이 양호하여 사용시에 외압에 의한 힘의 균형을 유지할 수 있으므로 찌그러지거나 부서지는 일이 없이 항상 원형의 상태를 유지할 수 있으며, 내습성과 방음성, 내부식성, 난연성 및 내마모성이 양호한 것이며, 간단한 제조공정에 의하여 용이하게 제조하여 제조원가를 절갈할 수 있으며 외관이 미려한 효과가 있는 것이다.The present invention thus obtained is a product obtained by combining the advantages and disadvantages of the properties of the PIR foam and the GMT sheet as an integral combination, so that the durability is good and the balance of the force due to external pressure can be maintained during use, so that it is always circular without being crushed or broken. It can maintain the state of, moisture resistance, soundproofing, corrosion resistance, flame retardancy and wear resistance is good, it can be easily manufactured by a simple manufacturing process to reduce the manufacturing cost and the appearance is beautiful effect.

Claims (1)

P.I.R폼으로 형성한 속판(1)의 외주면으로 G.M.T시이트로서 둘러감아 외피(2)를 형성시켜 금형(5),(5a)내에 내장한 다음 130℃-170℃의 온도, 30초/㎜-240초/㎜시간동안 35KG/Cm2-180KG/Cm2의 압력으로 가열 가압하여 P.I.R폼인 속판(1)의 외주면 전체에 G.M.T시이트인 외피(2)가 용융 접착되어 일체화되도록 함을특징으로한 G.M.T(S.M.C)시이트와 P.I.R폼을 이용한 판넬의 제조방법.The outer circumferential surface of the plate 1 formed of PIR foam is wound around the GMT sheet to form a shell 2 and embedded in the molds 5 and 5a, and then the temperature is 130 ° C. to 170 ° C. for 30 seconds / mm-240. GMT is characterized in that the outer shell 2 of the GMT sheet is melt-bonded and integrated on the entire outer circumferential surface of the inner plate 1 of the PIR foam by heating and pressing at a pressure of 35KG / Cm 2 -180KG / Cm 2 for the second / mm time. SMC) Panel manufacturing method using sheet and PIR foam.
KR1019910019548A 1991-11-02 1991-11-02 Preparation of panelusing gmt(s.m.c.) sheet and p.i.r. foam KR950006862B1 (en)

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KR950006862B1 true KR950006862B1 (en) 1995-06-23

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KR19980021451A (en) * 1996-09-17 1998-06-25 엄길용 Apparatus for manufacturing film type deflection member
US6073055A (en) * 1997-11-10 2000-06-06 Basf Corporation Computerized virtual paint manufacturing and application system
KR19990075083A (en) * 1998-03-17 1999-10-05 윤종용 Material manufacturing management system and management method
KR100453699B1 (en) * 2001-08-14 2004-10-20 (주)쓰리뷰 Method and apparatus of providing production control system with manufacturing process monitoring system

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