KR20040092939A - A sandwitch-type panel applied phenol resin and the method thereof - Google Patents
A sandwitch-type panel applied phenol resin and the method thereof Download PDFInfo
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- KR20040092939A KR20040092939A KR1020030027419A KR20030027419A KR20040092939A KR 20040092939 A KR20040092939 A KR 20040092939A KR 1020030027419 A KR1020030027419 A KR 1020030027419A KR 20030027419 A KR20030027419 A KR 20030027419A KR 20040092939 A KR20040092939 A KR 20040092939A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
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- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
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- 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
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- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
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- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0084—Foaming
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- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- 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
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- 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
- B32B2607/00—Walls, panels
Abstract
Description
본 발명은 건축물의 내외장재, 옥외구조물, 컨테이너, 경량 칸막이재, 각종 운송차량 등에 사용되는 유기플라스틱 재료인 샌드위치형 패널에 관한 것으로, 보다 상세하게는 난연겔코트 외피(제 1표면재), 유리섬유 보강 페놀 적층품(제 2표면재 및 보강재) 및 페놀폼(심재)을 사용하여 샌드위치형 구조재로 이루어진 패널에 관한 것이다.The present invention relates to a sandwich panel, which is an organic plastic material used for interior and exterior materials of buildings, outdoor structures, containers, lightweight partition materials, and various transportation vehicles, and more specifically, flame retardant gel coat skin (first surface material), glass fiber reinforcement. The present invention relates to a panel composed of a sandwich-type structural material using a phenol laminate (second surface material and reinforcing material) and a phenol foam (core material).
종래의 건축내외장재로 사용되는 우레탄 패널 및 발포폴리스티렌 패널은 자재의 난연화가 어려워 화재시 연소되어 특히 인체에 해로운 시안가스 및 일산화탄소 등 유독가스를 다량 발생시킨다.Urethane panels and foamed polystyrene panels, which are used as interior and exterior materials of a conventional building, are difficult to flame retardant and are burned in a fire to generate a large amount of toxic gases such as cyan gas and carbon monoxide.
페놀수지는 유기재료로서 뛰어난 내열성과 내연소성을 갖고 있어 각국의 난연자재에 관한 기준을 만족할 수 있어 최근 각광 받고 있으며 화재시 연기나 유해가스의 발생이 적기 때문에 화염에 가장 안전한 유기플라스틱 재료이다. 또한, 페놀수지는 고온에서의 기계적 물성이 뛰어나 고온에 노출되어도 강도 유지율이 뛰어나며 장기간 고온하에 노출시켜도 높은 잔류 탄소화율을 보이기 때문에 다른 플라스틱에 비해 강도열화가 적다. 뿐만 아니라 금속재와 비교해도 경량성, 방청성, 내식성 등이 뛰어나 폴리에스테르 유리강화 플라스틱이 대응하지 못하고 있는 분야인 공공 건축용 내외장재, 터널, 광산용 재료, 차량용 재료 등에 그 적용이 기대되고 있다.Phenolic resin is an organic material that has excellent heat resistance and combustion resistance, which can satisfy the standards of flame retardant materials in each country.It is recently attracting attention and it is the safest organic plastic material for flame because there is little smoke or harmful gas in fire. In addition, the phenol resin has excellent mechanical properties at high temperatures, and thus has excellent strength retention even when exposed to high temperatures, and exhibits high residual carbonization rate even when exposed to high temperatures for a long time, and thus has less strength degradation than other plastics. In addition, it is expected to be applied to interior and exterior materials for tunnels, tunnels, mining materials, and automobile materials, which are excellent in light weight, rust resistance, corrosion resistance, and the like, compared to metal materials, and which are not supported by polyester glass-reinforced plastics.
그러나, 종래의 페놀수지는 고온고압하에서 성형하여야 하는 작업상의 문제를 안고 있었고 이에 프리프레그 등을 만들어 성형하는 방법이 검토되었으나 대량생산이 어려웠다. 특히, 프리프레그로 제작하는 방법은 작업 후 표면 전체를 샌딩처리하여 도료를 도장하여야 하는 작업공정으로 인하여 작업싸이클, 제조설비 및 제조비용 등에서도 큰 문제점이 있었다.However, the conventional phenol resin had a problem in the work to be molded under high temperature and high pressure, and a method of forming and forming prepreg was examined, but mass production was difficult. In particular, the method of manufacturing the prepreg has a big problem in the work cycle, manufacturing equipment and manufacturing cost due to the work process to paint the coating by sanding the entire surface after the work.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 화재시 난연성이 뛰어나며 연기발생에 따른 독성 등의 문제를 해결할 수 있으며 가볍고 강도가 높은 페놀수지를 적용한 샌드위치형 패널 및 그 제조방법을 제공하는 것이다.The present invention has been made to solve the above problems, the object of the present invention is excellent in flame retardancy in the fire and can solve problems such as toxicity caused by the smoke and sandwich-type panel applying light and high phenolic resin and its It is to provide a manufacturing method.
상기와 같은 본 발명의 목적은 상단부와 하단부에 각각 형성된 비닐에스테르계 난연겔코트(10); 상기 난연겔코트(10) 이면에 각각 적층된 페놀수지 판재(20); 두개의 상기 페놀수지 판재(20) 사이에 삽입된 다수개의 페놀수지 보강재(30); 및 상기 페놀수지 판재(20) 사이에 발포된 페놀폼(40);으로 구성되는 것을 특징으로 하는 페놀수지를 적용한 샌드위치형 패널에 의하여 달성된다.An object of the present invention as described above is a vinyl ester flame retardant gel coat (10) formed at the upper and lower ends, respectively; Phenolic resin plate (20) laminated on the back of the flame retardant gel coat (10), respectively; A plurality of phenolic resin reinforcements 30 inserted between the two phenolic resin sheet 20; And a phenolic foam 40 foamed between the phenolic resin sheet 20. A phenolic resin sandwiched panel is achieved.
본 발명의 또 다른 목적은 비닐에스테르계 난연겔코트(10)를 몰드에 도장하여 경화시키는 단계(S1); 상온경화성 페놀수지에 경화제, 활제, 충전재 및 첨가제를 균일하게 혼합하는 단계(S2); 상기 S1단계에서 성형된 난연겔코트(10) 도장층 위에 상기 S2단계에서 혼연한 조성물에 보강재를 함침시켜 페놀수지 판재(20)를 적층시키는 단계(S3); 상기 S2단계에서 혼연한 조성물에 보강재를 함침시켜 'ㄷ'자형 페놀수지 보강재(30)를 성형하고 경화시키는 단계(S4); 상기 S3단계에서 제조된 두 개의 페놀수지 판재(20) 사이에 상기 S4단계에서 성형한 'ㄷ'자형 페놀수지 보강재(40) 다수개를 삽입하는 단계(S5); 상온경화성 페놀수지에 경화제, 발포제,정포제 및 가소제를 균일하게 혼합하여 페놀폼(40)을 제조하는 단계(S6);Still another object of the present invention is to apply a vinyl ester flame retardant gel coat (10) to the mold to cure (S1); Uniformly mixing a curing agent, a lubricant, a filler, and an additive with a room temperature-curable phenol resin (S2); Stacking the phenolic resin sheet 20 by impregnating a reinforcing material into the composition mixed in the step S2 on the flame retardant gel coat 10 formed in the step S1; Impregnating a reinforcing material in the composition mixed in the step S2 to form and harden a 'c'-shaped phenolic resin reinforcing material 30 (S4); Inserting a plurality of 'c' shaped phenolic resin reinforcements 40 formed in the step S4 between the two phenolic resin plates 20 manufactured in the step S3 (S5); Preparing a phenol foam 40 by uniformly mixing a curing agent, a foaming agent, a foaming agent, and a plasticizer in a room temperature-curable phenol resin (S6);
상기 S3단계에서 제조된 두 개의 페놀수지 판재(20) 사이에 상기 S6단계에서 제조된 페놀폼(40) 조성물을 주입하여 균일하게 발포시키는 단계(S7); 및 상기 조성물을 탈형시킨 후 상온에서 8 ~ 24시간 혹은 70 ~ 100℃에서 10 ~ 60분간 후경화시키는 단계(S8);로 이루어지는 것을 특징으로 하는 페놀수지를 적용한 샌드위치형 패널을 제조하는 방법에 의하여 달성된다.Injecting the phenol foam 40 composition prepared in step S6 between the two phenol resin plate 20 prepared in step S3 to uniformly foam (S7); And demolding the composition, followed by post-curing at room temperature for 8 to 24 hours or 70 to 100 ° C. for 10 to 60 minutes (S8). Achieved by the method for producing a sandwich panel to which a phenolic resin is applied. do.
본 발명에서는 화재시 난연성 및 연기발생에 따른 독성 등의 문제를 해결하고자 상온경화성 페놀수지를 사용하였으며, 또한 종래의 열경화성 페놀수지의 작업공정 등의 단점을 해결하기 위한 것으로 단열재인 페놀폼과, FRP에 사용되는 유리섬유와, 페놀수지를 함침하여 만든 판재 및 보강재와, 표면층인 난연겔코트 등을 사용하였다.In the present invention, in order to solve problems such as fire retardancy and toxicity caused by smoke, a room temperature curing phenol resin was used, and in order to solve the disadvantages of the work process of the conventional thermosetting phenol resin, phenol foam and FRP as insulation materials. Glass fiber used in the above, plate and reinforcing material impregnated with phenolic resin, flame retardant gel coat as surface layer, and the like were used.
본 발명의 그 밖의 목적, 특정한 장점 및 신규한 특징들은 첨부한 도면들과 연관되어지는 이하의 발명의 상세한 설명과 바람직한 실시예로부터 더욱 분명해질 것이다.Other objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description of the invention and the preferred embodiments in connection with the accompanying drawings.
도 1은 본 발명의 일 실시예에 따른 페놀수지를 적용한 샌드위치형 패널의 개략적인 사시도이다.1 is a schematic perspective view of a sandwich panel to which a phenolic resin according to an embodiment of the present invention is applied.
도 2는 본 발명의 다른 실시예에 따른 페놀수지를 적용한 샌드위치형 패널의 단면도이다.2 is a cross-sectional view of a sandwich panel to which a phenol resin according to another embodiment of the present invention is applied.
도 3은 본 발명에 따른 페놀수지 보강재의 사시도이다.3 is a perspective view of a phenolic resin reinforcing material according to the present invention.
도 4는 본 발명에 따른 페놀수지를 적용한 샌드위치형 패널의 제조방법에 관한 순서도이다.4 is a flowchart illustrating a method of manufacturing a sandwich panel to which a phenolic resin according to the present invention is applied.
* 도면의 주요 부분에 대한 부호 설명* Explanation of symbols on the main parts of the drawing
10 : 난연겔코트10: flame retardant gel coat
20 : 페놀수지 판재20: phenolic resin board
30 : 페놀수지 보강재30: phenolic resin reinforcement
40 : 페놀폼40: phenolic foam
이하 본 발명에 따른 페놀수지를 적용한 샌드위치형 패널의 구성에 대하여 설명하기로 한다.Hereinafter, the configuration of the sandwich panel to which the phenolic resin according to the present invention is applied will be described.
도 1은 본 발명의 일 실시예에 따른 페놀수지를 적용한 샌드위치형 패널의 개략적인 사시도이며, 도 2는 본 발명의 다른 실시예에 따른 페놀수지를 적용한 샌드위치형 패널의 단면도이며, 도 3은 본 발명에 따른 페놀수지 보강재의 사시도이다.1 is a schematic perspective view of a sandwich panel applying a phenolic resin according to an embodiment of the present invention, Figure 2 is a cross-sectional view of a sandwich panel applying a phenolic resin according to another embodiment of the present invention, Figure 3 It is a perspective view of the phenol resin reinforcement material which concerns on this invention.
도 1, 도 2 및 도 3에 도시된 바와 같이, 샌드위치형 패널은 상단부와 하단부에 각각 형성된 비닐에스테르계 난연겔코트(10)와, 상기 난연겔코트(10) 이면에 각각 적층된 페놀수지 판재(20)와, 두개의 상기 페놀수지 판재(20) 사이에 삽입된 다수개의 페놀수지 보강재(30)와, 상기 페놀수지 판재(20) 사이에 발포된 페놀폼(40)으로 이루어져 있다. 즉, 페놀 FRP 판재와 접착력이 뛰어난 제 1표면재인 난연겔코트와, 제 2표면재로서 페놀 FRP 판재 및 보강재와, 심재로서 페놀폼으로 구성된다.1, 2 and 3, the sandwich panel is a vinyl ester flame retardant gel coat (10) formed on the upper and lower ends, respectively, and the phenolic resin plate laminated on the back of the flame retardant gel coat (10), respectively (20), and a plurality of phenolic resin reinforcing material 30 inserted between the two phenolic resin board 20, and the phenolic foam 40 foamed between the phenolic resin board 20. That is, it consists of a phenol FRP board material and the flame retardant gel coat which is the 1st surface material excellent in adhesive force, a phenol FRP board material and a reinforcement material as a 2nd surface material, and a phenol foam as a core material.
상기 난연겔코트(10)는 비닐에스테르계 수지 100 중량부에 대하여 요변제 0.05 ~ 0.2 중량부, 난연제 100 ~ 200 중량부, 첨가제 0.5 ~ 1.5 중량부, 반응형 희석제 10 ~ 30 중량부, 안료 0.5 ~ 1.5 중량부, 경화제 0.01 ~ 0.05 중량부 및 촉진제 0.01 ~ 0.03 중량부로 구성되어 있다.The flame retardant gel coat (10) is 0.05 to 0.2 parts by weight, flame retardant 100 to 200 parts by weight, additives 0.5 to 1.5 parts by weight, reactive diluent 10 to 30 parts by weight, pigment 0.5 with respect to 100 parts by weight of the vinyl ester resin To 1.5 parts by weight, a curing agent 0.01 to 0.05 parts by weight and an accelerator 0.01 to 0.03 parts by weight.
상기 비닐에스테르계 수지는 에폭시아크릴레이트와 메타크릴산이 축중합하여 생성된 고분자를 반응형희석제인 스티렌모노머(styrene monomer)에 희석시킨 액상수지이다. 상기 요변제는 겔코트 작업시 흘러내림 현상을 방지하기 위한 첨가제로 발연 실리콘 이산화물(fumed silicone dioxide) 계통을 사용한다.The vinyl ester resin is a liquid resin obtained by diluting a polymer produced by condensation polymerization of epoxy acrylate and methacrylic acid in a styrene monomer which is a reactive diluent. The thixotropic agent uses a fumed silicone dioxide system as an additive to prevent the dropping phenomenon during the gel coat operation.
상기 난연제로는 수산화알루미늄, 폴리인산암모늄, 삼산화안티몬, 염화파라핀 등을 조합하여 사용한다. 상기 첨가제로는 일반적으로 겔코트에 사용되는 자외선안정제, 소포제, 색분리방지제 등이 포함된다. 상기 반응형희석제는 점도 조정 및 경화시 가교역할을 하며 스티렌모노머를 사용한다.As the flame retardant, aluminum hydroxide, ammonium polyphosphate, antimony trioxide, paraffin chloride, etc. may be used in combination. The additives include UV stabilizers, antifoams, color separation agents, and the like, which are generally used in gel coats. The reactive diluent plays a role of crosslinking during viscosity adjustment and curing and uses styrene monomer.
상기 안료로는 이산화티탄(titanium dioxide) 등 색상을 구현하기 위해 첨가되는 각종 유기, 무기안료이며, 색상구현을 위하여 1종 이상의 안료를 조합하여 사용한다. 상기 경화제로는 유기과산화물 등이 사용되며 메틸에틸케톤 퍼옥사이드(methylethylketone peroxide, MEKPO)를 사용한다. 상기 촉진제로는 코발트 나프텐산 혹은 코발트옥탄산을 사용한다.The pigments are various organic and inorganic pigments added to realize colors such as titanium dioxide, and used in combination of one or more pigments for color realization. As the curing agent, an organic peroxide or the like is used, and methyl ethyl ketone peroxide (MEKPO) is used. Cobalt naphthenic acid or cobalt octanoic acid is used as the accelerator.
상기 페놀수지 판재(20) 및 상기 페놀수지 보강재(30)는 상온경화성 페놀수지 100 중량부에 대하여 충전재 0 ~ 30 중량부, 페놀수지용 경화제 5 ~ 25 중량부 및 유리섬유 30 ~ 70 중량부로 구성되어 있다.The phenolic resin sheet 20 and the phenolic resin reinforcing material 30 is composed of 0 to 30 parts by weight of filler, 5 to 25 parts by weight of a curing agent for phenol resin and 30 to 70 parts by weight of glass fiber based on 100 parts by weight of room temperature curable phenolic resin. It is.
상기 상온경화성 페놀수지는 본 출원인이 출원한 바 있는 공개공보 특2003-0010054에서 제시된 상온경화성 페놀수지를 사용한다. 즉 상기 공개공보에 공지된 바와 같이 상온경화성 페놀수지는, 페놀류와 페놀류에 대하여 1.4 내지 2.2 몰비의 포름알데하이드류를 혼합하여 교반하는 단계(a); 상기 단계(a)에 금속수산화물 또는 아연아세테이트를 상기 페놀에 대하여 0.5중량부 내지 10중량부 첨가하여 60℃ 내지 110℃ 온도에서 반응시키는 단계(b); 상기 단계(b)의 반응 종료 후 중화시키는 단계(c); 및 상기의 단계(c)에서 중화된 반응생성물을 최종 수지의 고형분이 40% 내지 90%가 되도록 탈수시키는 단계(d)를 통하여 제조된다.The room temperature-curable phenol resin uses the room temperature-curable phenol resin disclosed in Japanese Patent Application Laid-Open No. 2003-0010054 filed by the present applicant. That is, as known in the above publication, the room temperature-curable phenol resin is mixed with and stirred with a phenol and formaldehyde in a 1.4 to 2.2 molar ratio with respect to phenols (a); Adding (b) 0.5 to 10 parts by weight of the metal hydroxide or zinc acetate with respect to the phenol and reacting at a temperature of 60 ° C. to 110 ° C .; Neutralizing after completion of the reaction of step (b); And dehydrating the reaction product neutralized in step (c) such that the solid content of the final resin is 40% to 90%.
상기 페놀수지용 경화제로는 본 출원인이 출원한 바 있는 공개공보 특2003-0010054에서 제시된 상온경화성 페놀수지용 경화제를 사용한다. 즉 상기 공개공보에 공지된 바와 같이 페놀수지용 경화제는, 파라톨루엔설포닉산이 전체 조성물중의 40 ~ 70 중량부, 인산이 5 ~ 20 중량부, 물이 전체 조성물의 나머지 함량으로 이루어져 있다.As the curing agent for phenolic resins, the curing agent for room temperature-curable phenolic resins disclosed in Japanese Patent Application Laid-Open No. 2003-0010054 filed by the present applicant is used. That is, as known in the above publication, the curing agent for phenol resin, paratoluene sulfonic acid is 40 to 70 parts by weight of the total composition, 5 to 20 parts by weight of phosphoric acid, water consists of the remaining content of the entire composition.
상기 충전재로는 시멘트, 점토, 규사, 석고 등의 군에서 1종 이상을 선택하여 사용한다.As the filler, at least one selected from the group of cement, clay, silica sand, gypsum, and the like is used.
상기 페놀폼(40)은 상온경화성 페놀수지 100 중량부에 대하여 정포제 1 ~ 10 중량부, 페놀수지용 경화제 5 ~ 25 중량부 및 발포제 3 ~ 25 중량부로 구성되어 있다.The phenol foam 40 is composed of 1 to 10 parts by weight of a foam stabilizer, 5 to 25 parts by weight of a curing agent for phenol resins and 3 to 25 parts by weight of a foaming agent based on 100 parts by weight of a room temperature-curable phenol resin.
상기 상온경화성 페놀수지 및 페놀수지용 경화제는 상기 페놀수지 판재(20) 및 페놀수지 보강재(30)의 구성요소에서 설명한 바와 같다. 상기 정포제는 폼의 셀 분포 및 크기를 조정하기 위하여 사용되며 B-8444, B-8404 등의 실록산계가 사용된다. 상기 발포제는 HCFC계의 K-141b가 사용되거나 대체발포제인 HFC 혹은 펜탄계가 사용된다.The curing agent for the room temperature phenol resin and the phenol resin is as described in the components of the phenol resin plate 20 and phenol resin reinforcing material (30). The foam stabilizer is used to adjust the cell distribution and size of the foam, and siloxane series such as B-8444 and B-8404 are used. The blowing agent is used HCFC K-141b or alternative foaming agent is HFC or pentane-based.
도 4는 본 발명에 따른 페놀수지를 적용한 샌드위치형 패널의 제조방법에 관한 순서도이다. 도 4에 도시된 바와 같이, 샌드위치 패널을 제조하는 방법은 총 8단계로 이루어져 있다.4 is a flowchart illustrating a method of manufacturing a sandwich panel to which a phenolic resin according to the present invention is applied. As shown in Figure 4, the method for manufacturing a sandwich panel consists of a total of eight steps.
S1단계는 비닐에스테르계 특수 난연겔코트(10)를 몰드에 도장하여 경화시키는 단계이다. S2단계는 상온경화성 페놀수지에 경화제, 활제, 충전재 등 기타 첨가제를 균일하게 혼합하는 단계이다. S3단계는 상기 S1단계에서 성형된 난연겔코트(10) 도장층 위에 상기 S2단계에서 혼연한 조성물을 유리섬유 등과 같은 보강재와 함침시켜 판재형의 적층품을 성형하는 단계이다.Step S1 is a step of coating the vinyl ester-based special flame retardant gel coat 10 on the mold to cure. Step S2 is a step of uniformly mixing the curing agent, lubricant, filler and other additives to the room temperature curing phenol resin. Step S3 is a step of forming a plate-shaped laminate by impregnating the composition kneaded in step S2 with a reinforcing material such as glass fiber on the flame retardant gel coat 10 formed in step S1.
S4단계는 상기 S2단계에서 혼연한 조성물을 유리섬유 등과 같은 보강재와 함침시켜 'ㄷ'자형 보강재로 성형하고 경화시키는 단계이다. S5단계는 상기 S3단계에서 제조된 두 개의 페놀수지 판재(20) 사이에 상기 S4단계에서 성형한 'ㄷ'자형 페놀수지 보강재(40) 다수개를 삽입하는 단계이다.S6단계는 페놀폼 제조를 위해 상온경화성 페놀수지에 경화제, 발포제, 정포제, 가소제 등을 균일하게 혼합하는 단계이다.Step S4 is a step of forming and curing the composition kneaded in the step S2 with a reinforcing material such as glass fibers and the 'c' shaped reinforcing material. Step S5 is a step of inserting a plurality of 'c'-shaped phenolic resin reinforcing material 40 formed in step S4 between the two phenolic resin sheet 20 prepared in step S3. In order to uniformly mix a curing agent, a foaming agent, a foam stabilizer, a plasticizer and the like with a room temperature-curable phenol resin.
S7단계는 상기 S3단계에서 제조된 두 개의 페놀수지 판재(20) 사이에 상기 S6단계에서 제조된 페놀폼(40) 조성물을 주입하여 균일하게 발포시키는 단계이다. S8단계는 상기 조성물을 탈형시킨 후 상온에서 8 ~ 24시간 혹은 70 ~ 100℃에서 10 ~ 60분간 후경화시키는 단계이다.Step S7 is a step of uniformly foaming by injecting the phenol foam 40 composition prepared in step S6 between the two phenol resin plate 20 prepared in step S3. Step S8 is a step of post-curing the composition after demolding at room temperature for 8 to 24 hours or at 70 to 100 ° C. for 10 to 60 minutes.
본 발명에 따른 샌드위치형 패널 구조체를 제조함에 있어서, 상기 S1단계에서 경화시키는 시간은 상온에서 1 ~ 2시간 혹은 40 ~ 60℃에서 5 ~ 15분이며, 상기 S3단계 및 S4단계에서는 상온에서 8 ~ 24시간 혹은 80 ~ 90℃에서 10 ~ 20분이다.In manufacturing the sandwich panel structure according to the present invention, the curing time in the step S1 is 1 to 2 hours at room temperature or 5 to 15 minutes at 40 to 60 ℃, in the step S3 and S4 8 ~ at room temperature 10-20 minutes at 24 hours or 80-90 ° C.
이하 상기와 같은 구성을 갖는 본 발명에 따른 페놀수지를 적용한 샌드위치형 패널의 결합 및 작용에 대하여 설명하기로 한다.Hereinafter, the bonding and action of the sandwich panel to which the phenolic resin according to the present invention having the above-described configuration is applied will be described.
심재는 페놀폼(40)으로 이루어져 있는바 상기 S3단계에서 제조된 페놀수지 판재(20) 사이에 상기 S4단계에서 제조된 페놀수지 보강재(30)를 사용하여 테두리를 만든 뒤 그 사이에 페놀폼(40)을 주입, 발포시켜 제조한다. 이 때 사용되는 페놀수지 보강재(30)는 유리섬유강화 플라스틱(fiber glass reinforced plastic, FRP)형태이며 이는 샌드위치형 패널 구조체의 압축강도를 증대시키며, 폼 성형시 발포벽의 역할도 하게 된다.Core material is made of phenolic foam 40 bar between the phenolic resin plate 20 produced in step S3 using the phenolic resin reinforcing material (30) prepared in step S4 and then make a border between the phenolic foam ( 40) is prepared by injecting and foaming. At this time, the phenolic resin reinforcing material 30 used is a glass fiber reinforced plastic (FRP) form, which increases the compressive strength of the sandwich panel structure, and also serves as a foam wall during foam molding.
또한, 상기 페놀 FRP 보강재는 페놀수지를 성형하여 만들었기 때문에 모재와의 접착성이 뛰어나며 일반 재료에 비해 난연성, 독성, 경량성, 강도 등의 여러 면에서 우수성을 갖는다. 이는 기존에 따로 성형하여 접착을 시키는 종래의 공법에 비하여 직접 발포하는 공정을 채택하여 페놀수지 판재(20)와 페놀폼(40)의 접착력을 구현함과 동시에 작업공정의 단축이 가능하다.In addition, since the phenol FRP reinforcing material is made by molding a phenolic resin, the phenol FRP reinforcing material is excellent in adhesiveness with the base material and has superiority in various aspects, such as flame retardancy, toxicity, light weight, and strength, compared to general materials. This adopts a process of directly foaming as compared to the conventional method of molding and bonding separately to the existing process, and realize the adhesive force of the phenol resin plate 20 and phenol foam 40 and at the same time shorten the work process.
상기와 같은 샌드위치형 패널구조는 페놀폼과 페놀수지를 사용하기 때문에 내열성, 난연성, 저독성, 내약품성과 기계적 성능 및 전기적 성능이 우수하여 내구성을 향상시키고 페놀수지의 난연적인 특성으로 인하여 화재발생시 착화성, 발연성 등이 획기적으로 개선된 제품이다.The sandwich panel structure as described above uses phenolic foam and phenolic resin, which is excellent in heat resistance, flame retardancy, low toxicity, chemical resistance, mechanical performance and electrical performance, thereby improving durability and flammability in case of fire due to flame retardant properties of phenolic resin. The product has greatly improved smoke and smokeability.
본 발명에 따라 제조된 샌드위치형 패널의 내연소성 시험 결과 샌드위치형 패널의 표면온도를 900℃로 유지하였을 때 시간의 경과에 따라 패널에서 일어나는 현상은 불꽃 및 연기 없이 탄화과정만 유지되며 장기간으로 갈수록 표면이 탄화될 뿐 착화가 없으며 연기발생량이 작으므로 본 샌드위치형 패널은 우수한 불연성 및 난연성을 가진 불연자재로 사용될 수 있다.As a result of the combustion resistance test of the sandwich panel manufactured according to the present invention, when the surface temperature of the sandwich panel was maintained at 900 ° C., the phenomenon occurring in the panel with the passage of time was maintained only in the carbonization process without flame and smoke, and the surface for a long time. The carbonized panel has no ignition and a small amount of smoke, so the sandwich panel can be used as a nonflammable material having excellent nonflammability and flame retardancy.
이러한 샌드위치형 패널 구조체는 내판과 측면판이 일체형으로 성형된 샌드위치형 패널로 제작되므로써 중량이 가볍고 강도와 내구성 및 내열성과 방염성을 향상시킬 수 있게 한다.The sandwich panel structure is made of a sandwich panel in which the inner plate and the side plate are integrally formed, thereby making it light in weight and improving strength and durability, heat resistance, and flame resistance.
상기 설명한 바와 같은 본 발명에 따른 페놀수지를 적용한 샌드위치형 패널 및 그 제조방법에 의하면, 높은 열적안정성, 난연성, 저독성 및 저발연성 등 우수한 특성을 가지고 있고, 보강 구조는 내판과 측면이 일체형으로 성형된 샌드위치형 패널로 제작함으로써 중량이 가볍고 강도와 내구성 및 내열성과 방염성을 향상시켰으며, 특히 페놀판재와 접착력이 우수한 난연겔코트를 적용함으로써 종래의 후처리 작업공정을 대폭 단축시키는 효과를 갖는다.According to the sandwich panel to which the phenolic resin according to the present invention as described above and a method for manufacturing the same have excellent properties such as high thermal stability, flame retardancy, low toxicity and low smoke resistance, the reinforcing structure is formed by integrally forming the inner plate and the side. By making the sandwich panel, the weight is light, and the strength, durability, heat resistance, and flame resistance are improved. In particular, by applying a flame retardant gel coat having excellent adhesion with a phenolic plate material, the post-treatment work process is greatly shortened.
비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 용도에 따라 다양한 변형을 하는 것이 가능하다. 따라서 첨부된 특허청구범위는 본 발명의 요지에 속하는 이러한 수정이나 변형을 포함한다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications depending on the use without departing from the spirit and scope of the invention. Accordingly, the appended claims include such modifications and variations as fall within the spirit of the invention.
Claims (6)
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| KR10-2003-0027419A KR100513243B1 (en) | 2003-04-30 | 2003-04-30 | A sandwitch-type panel applied phenol resin and the method thereof |
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| KR10-2003-0027419A KR100513243B1 (en) | 2003-04-30 | 2003-04-30 | A sandwitch-type panel applied phenol resin and the method thereof |
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| KR100513243B1 KR100513243B1 (en) | 2005-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017200190A1 (en) * | 2016-05-16 | 2017-11-23 | (주)엘지하우시스 | Sandwich panel and manufacturing method therefor |
| KR101851920B1 (en) * | 2018-01-17 | 2018-04-27 | 주식회사에이피에스케미칼 | Process for Producing Molded Grating Using Phenol Resins and Molded Grating for Producing The Same |
| KR20230025307A (en) * | 2021-08-13 | 2023-02-21 | 주식회사 대광판넬 | Sandwich panel and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100953191B1 (en) | 2009-05-18 | 2010-04-15 | 덕유패널 주식회사 | A continuous forming method of phenol foam board |
| KR102400873B1 (en) * | 2021-07-13 | 2022-05-20 | 이정재 | Semi-non-combustible exterior insulation panel for construction |
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2003
- 2003-04-30 KR KR10-2003-0027419A patent/KR100513243B1/en active IP Right Grant
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017200190A1 (en) * | 2016-05-16 | 2017-11-23 | (주)엘지하우시스 | Sandwich panel and manufacturing method therefor |
| KR101851920B1 (en) * | 2018-01-17 | 2018-04-27 | 주식회사에이피에스케미칼 | Process for Producing Molded Grating Using Phenol Resins and Molded Grating for Producing The Same |
| KR20230025307A (en) * | 2021-08-13 | 2023-02-21 | 주식회사 대광판넬 | Sandwich panel and method for producing the same |
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