KR20020084660A - Preparation method of functional honeycomb core composite be filled with resin foams - Google Patents
Preparation method of functional honeycomb core composite be filled with resin foams Download PDFInfo
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- KR20020084660A KR20020084660A KR1020010024491A KR20010024491A KR20020084660A KR 20020084660 A KR20020084660 A KR 20020084660A KR 1020010024491 A KR1020010024491 A KR 1020010024491A KR 20010024491 A KR20010024491 A KR 20010024491A KR 20020084660 A KR20020084660 A KR 20020084660A
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
- B29C70/66—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler comprising hollow constituents, e.g. syntactic foam
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- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
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Abstract
Description
본 발명은 허니컴 샌드위치 구조용 복합재료의 보강재로 사용되는 허니컴 코어의 표면 코팅처리를 통해 압축 및 굽힘 등 기계적 물성의 증진과 함께, 할로(hallow)타입의 코어 셀 격자를 발포수지로 충진시켜 난연, 단열 및 흡/차음의 방음특성이 부여된 허니컴 코어 복합재료의 제조 및 가공에 관한 것으로서, 가구나 생활용품등 그 용도가 극히 제한적이었던 허니컴 코어를 경량의 고강도이면서 난연, 단열 및 흡/차음 특성이 요구되는 다양한 건축 내ㆍ외장 벽재 및 구조용 보강재로 사용할 수 있도록 하였다.The present invention is to improve the mechanical properties such as compression and bending through the surface coating treatment of the honeycomb core used as a reinforcement of the composite material for honeycomb sandwich structure, filling the hollow core cell lattice with foamed resin, flame retardant, heat insulation And the manufacturing and processing of honeycomb core composites having soundproofing and soundproofing properties, and having a light weight, high strength, flame retardant, insulation and soundproofing / soundproofing properties. It can be used as a variety of interior and exterior wall materials and structural reinforcement materials.
일반적으로 허니컴 샌드위치 복합재는 금속, 세라믹 및 석재등의 다른 구조재료와 비교하여 경량이면서도 충분한 기계적 강도를 가져, 2차 세계대전 이후항공기 및 수송용 구조재료의 일부로 사용되기 시작하면서 경량의 복합재료 구조재료로 등장하기 시작하였다. 이후 허니컴 샌드위치 복합재료의 제조 및 가공기술의 발달과 더불어 건축물 내/외장재, 선박 및 차량용 내장재나 격벽재료 및 레져, 스포츠 분야에서 경량화를 위한 구조재로서 널리 사용되고 있다. 최근에는 허니컴 또는 격자등 다양한 형태의 심재구조에 발포수지를 충진시켜 단열 및 난연효과와 함께 흡ㆍ차음의 방음효과를 부여한 고부가가치 상품화가 이루어지고 있다. 그러나, 이러한 복합재료는 뛰어난 특성에도 불구하고 그 활용에 제약이 되고 있는 것은 심재의 성분과 발포수지의 서로 다른 구성 성분간의 조합에 따른 강도와 접착력의 저하 및 가공성에 있어 제약을 가지므로 이에 따른 문제점을 해결할 수 있는 새로운 형태의 허니컴 가공기술의 개발이 요구되고 있는 바, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅처리를 통해 압축 및 인장 강도등의 기계적 물성 증진 및 구조적인 안정성 부여와 함께 발포수지를 허니컴 셀 격자내에 충진시켜 절연, 난연, 단열 및 흡/차음 특성이 부여된 새로운 개념의 기능성 허니컴 코어 복합재료를 제조하였다.In general, honeycomb sandwich composites are lightweight and have sufficient mechanical strength compared to other structural materials such as metals, ceramics, and stone, and are being used as part of aircraft and transport structural materials after World War II. It began to appear. Since then, with the development of manufacturing and processing technology for honeycomb sandwich composites, it is widely used as a structural material for weight reduction in building interior / exterior materials, interior materials for ships and vehicles, bulkhead materials and leisure, sports. Recently, high value-added products have been made by filling foamed resins in various types of core structures such as honeycomb or lattice to give insulation and flame retardant effects as well as sound insulation and sound insulation. However, this composite material is limited in its utilization despite its excellent properties because of its limitation in strength and adhesive strength and workability due to the combination of core components and different components of the foamed resin. It is required to develop a new type of honeycomb processing technology that can solve the problem. Through the surface water glass coating of the honeycomb core according to the present invention, the mechanical properties such as compression and tensile strength and structural stability are given together with the foamed resin. Filling into the honeycomb cell lattice, a new concept of functional honeycomb core composites with insulation, flame retardant, heat insulation and sound absorption / sound insulation properties was prepared.
본 발명은 허니컴 샌드위치 구조재로서 사용되는 허니컴 코어의 표면을 본 발명자들에 의해 제안된 특허출원 10-2001-0002605의 방법에 의한 물유리 코팅 처리와 함께 <도 1>에 제시된 공정에 의해 할로(hallow)타입의 코어 셀의 격자를 발포수지로 충진시켜 경량성은 유지하면서, 기존 허니컴 코어의 단점인 내압축성, 내인장성, 내마모성, 내굽힘성, 내후ㆍ내습성등의 기계적ㆍ물리적 성질의 향상과 함께 새로이 단열, 방화 및 흡/차음등의 방음 특성이 부여된 구조용 기능성 허니컴 코어 복합재료의 제조방법에 관한 것이다.The present invention uses a surface of a honeycomb core to be used as a honeycomb sandwich structure by halo by the process shown in FIG. 1 together with a water glass coating treatment by the method of patent application 10-2001-0002605 proposed by the present inventors. Filling the lattice of the type core cell with foamed resin while maintaining light weight, the mechanical and physical properties such as compression resistance, tensile resistance, abrasion resistance, bending resistance, weather resistance, and moisture resistance, which are disadvantages of the existing honeycomb core, are newly improved. The present invention relates to a method for producing a structural functional honeycomb core composite material provided with soundproofing properties such as heat insulation, fire protection, and sound absorption and sound insulation.
일반적인 샌드위치 구조재의 구성은 2개의 얇고 강도가 높은 Face-sheet (skin층)와 비교적 두껍고 가벼운 벌집 구조물 (core층)로 이루어져 있으며, 이들 각각을 접착시키기 위한 접착제 층으로 구성되어 있다.A typical sandwich structure consists of two thin, high-strength face-sheets (skin layers) and a relatively thick and light honeycomb structure (core layer), each consisting of an adhesive layer for bonding each of them.
최근에는 이러한 허니컴 샌드위치 구조재의 보강을 위해 기존의 허니컴 코어를 수지에 함침 후 경화시켜 내압축 및 충격성을 증진시키거나, skin층과 core층과의 접착력을 보강하기 위해 허니컴 구조를 변경 또는 일정부분을 제거한 후 그 부분을 skin층과 접착이 잘되는 재료로 대체하여 접착시키는 방법들이 제시되었으나, 이러한 방법들은 제조공정적 측면에서 설비의 투자 및 경량화에 있어서 많은 제약이 있다.Recently, in order to reinforce the honeycomb sandwich structure material, the existing honeycomb core is impregnated with resin and then hardened to improve compression resistance and impact resistance, or to change or change a honeycomb structure to a part of the honeycomb structure to reinforce the adhesion between the skin layer and the core layer. After removal, the method of adhering the part to the skin layer and the adhesive material has been proposed. However, these methods have many limitations in terms of investment and light weight of equipment in terms of manufacturing process.
따라서, 본 발명에 따른 샌드위치 구조재용 허니컴 코어의 물유리 코팅 및 셀 격자내부의 충진 가공방법은 새로운 설비의 추가없이 발포수지의 프레싱 또는 충진작업을 통해 기존 허니컴 샌드위치 구조재에 비해 압축, 인장등 기계적 물성의 향상과 더불어, 절연, 난연, 단열 및 흡/차음 특성이 우수한 기능성 허니컴 코어 복합재료를 제조함을 그 목적으로 한다.Therefore, the water glass coating of the honeycomb core for sandwich structural material according to the present invention and the filling processing method inside the cell lattice have a mechanical property such as compression, tension and the like compared to the existing honeycomb sandwich structural material through pressing or filling of foamed resin without adding new equipment. In addition to the improvement, the object is to produce a functional honeycomb core composite material having excellent insulation, flame retardant, heat insulation and sound absorption / sound insulation properties.
도 1은 본 발명에 따른 발포수지 충진 허니컴코어 복합재료의 제조공정도1 is a manufacturing process of the foamed resin filled honeycomb core composite material according to the present invention
도 2는 발포수지 충진처리된 허니컴 코어 복합재료의 평면도Figure 2 is a plan view of the honeycomb core composite material filled with foamed resin
도 3은 각 실시예에 따른 허니컴 코어 복합패널 및 일반 방음패널의 흡음특성 비교도3 is a comparison of sound absorption characteristics of the honeycomb core composite panel and the general soundproof panel according to each embodiment.
도 4는 각 실시예에 따른 허니컴 코어 복합패널 및 일반 방음패널의 차음특성 비교도4 is a comparison of sound insulation characteristics of the honeycomb core composite panel and the general soundproof panel according to each embodiment.
본 발명은 사용되는 허니컴 심재는 종이, 나무, 천연 또는 합성 섬유등 경량의 섬유질로 된 가연성 재질이며, 심재의 구조나 형상은 일반적으로 육각 벌집모양을 이루는 것이 심재의 강도나 가공적인 측면에서 유리하나, 요구되는 강도 및 용도에 따라 사각 격자형, 요철(凹凸)형 및 리본형등 다양한 형태가 가능하다. 이러한 허니컴 심재를 본 발명자들이 제안한 특허출원 제 10-2001-0002605호에 제시한 다양한 액상의 무기질 충진재로 표면을 코팅 처리하여 압축 및 인장등 기계적 물성을 증진시켜 구조적 안정성을 부여한 후 허니컴의 공극 격자를 발포성 수지로 프레싱 또는 충진 발포시켜 단열 및 난연특성과 함께 흡ㆍ차음의 방음특성을 부여한 기능성 허니컴 코어 복합재료의 제조방법을 제공하며, 본 발명에 의해 제조된 기능성 허니컴 코어 복합재료의 평면도를 <도 2>에 나타내었다.The honeycomb core used in the present invention is a combustible material made of light fiber such as paper, wood, natural or synthetic fibers, and the structure or shape of the core is generally hexagonal honeycomb, but it is advantageous in terms of strength or processing. Various shapes such as rectangular lattice, irregularities and ribbons are possible depending on the required strength and application. The honeycomb core material is coated with various liquid inorganic fillers proposed in the patent application No. 10-2001-0002605 proposed by the present inventors to enhance mechanical properties such as compression and tension to give structural stability and then to improve the honeycomb pore grating. The present invention provides a method for producing a functional honeycomb core composite material in which the honeycomb core composite material is prepared by pressing or filling foaming with a foaming resin and providing sound insulation and sound insulation as well as insulation and flame retardant properties. 2> is shown.
본 발명에 사용되는 허니컴 셀 충진제로는 연속 기포를 발생시키는 발포수지로서 연질 또는 경질의 폴리우레탄폼, 페놀폼 및 PVC폼 등을 주재로 하며, 허니컴 셀에 대한 충진 방법으로는 프레싱 공정을 통한 가압발포와 분사에 의한 함침발포를 통하여 허니컴 셀의 공극격자를 충진시킬 수 있다. 이러한 구성을 통하여 제작된 발포수지/허니컴 복합재료는 종래의 허니컴 구조의 구조적 강도의 상승과 더불어 충진 발포수지의 특성에 의한 난연 및 단열효과만 아니라 발포수지 내부에 발달된 기공구조에 의한 흡/차음 효과를 구비한 기능성 허니컴 복합패널의 제조방법을 제공하고자 한다.The honeycomb cell filler used in the present invention is a foamed resin that generates continuous bubbles, mainly based on soft or hard polyurethane foam, phenol foam and PVC foam, and the filling method for the honeycomb cell is pressurized through a pressing process. It is possible to fill the gap grid of the honeycomb cell through the impregnation foam by the foaming and spraying. The foamed resin / honeycomb composite material produced through such a structure has the structural strength of the conventional honeycomb structure, and the flame-retardant and heat-insulating effect due to the characteristics of the filled foamed resin, as well as the sound absorption / insulation due to the pore structure developed inside the foamed resin The present invention provides a method of manufacturing a functional honeycomb composite panel having an effect.
이하, 본 발명에 따른 다양한 실시예를 통하여 그 특징과 성능을 보다 상세하게 기술하였다.Hereinafter, the features and the performances of the present invention are described in detail.
[실시예 1]Example 1
본 발명을 통한 기능성 허니컴 코어 복합재료의 제조에 있어서 사용된 허니컴은 국내에서 생산되는 종이 허니컴을 보강재로 하였으며, 이 종이 허니컴 보강재에 대하여 규산소다 수용액을 코팅용액으로 하여 표면처리하였다. 이렇게 처리된 허니컴 코어에 대하여 난연성 및 흡/차음 성능이 부여된 연질의 폴리우레탄폼을 허니컴 셀 격자 내부로 분사하여 발포수지로 충진 처리된 허니컴 코어 복합재료를 제작하였다. 이렇게 하여 제작된 허니컴 코어 복합재료의 압축 및 전단 접착강도시험을 실시하여 충진처리 전과 후의 허니컴 코어의 압축 및 전단 접착강도 결과를 <표 1>에 나타내었다.The honeycomb used in the production of the functional honeycomb core composite material according to the present invention was made of paper honeycomb produced in Korea as a reinforcing material, and the surface of the honeycomb reinforcing material was coated with an aqueous solution of sodium silicate as a coating solution. A honeycomb core composite material filled with a foamed resin was prepared by spraying a flexible polyurethane foam having flame retardancy and sound absorption / sound insulation performance into the honeycomb cell lattice. Compression and shear bond strength tests of the honeycomb core composites thus prepared were carried out, and the results of the compressive and shear bond strengths of the honeycomb core before and after the filling treatment are shown in <Table 1>.
또한, 본 발명에 따른 허니컴 코어 복합재료의 단열, 난연 및 흡/차음 시험을 실시하여 그 결과를 <표 2> 및 <표 3>에 나타내었으며, 각 시험편에 대한 흡/차음특성 비교그래프를 <도 3> 및 <도 4>에 각각 나타내었다. 그 결과 허니컴 코어 복합재료의 압축 및 전단 접착강도는 충진 처리전에 비하여 5.8배 및 3.9배가 각각 증가하였으며, 특히 기능적 측면에서 난연, 단열 및 흡/차음 효과가 우수하였다. 즉, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅 처리와 더불어 발포수지의 충진에 의하여 보강용 심재 및 난연, 방음용 구조재로서 충분한 기능을 발휘할 수 있는 기능성 허니컴 코어 복합재료를 제조하였다.The honeycomb core composite material according to the present invention was also subjected to the insulation, flame retardant, and sound absorption and sound insulation tests. The results are shown in <Table 2> and <Table 3>. It showed in FIG. 3> and <FIG. 4>, respectively. As a result, the compressive and shear bond strengths of honeycomb core composites were increased by 5.8 times and 3.9 times, respectively. That is, a functional honeycomb core composite material capable of exhibiting sufficient functions as a reinforcing core material, flame retardant, and soundproofing structural material by filling the foamed resin together with the surface water glass coating treatment of the honeycomb core according to the present invention was prepared.
[실시예 2]Example 2
실시예 1에서와 같이 섬유상의 허니컴을 보강재로 하여, 이 허니컴 보강재에 대하여 규산소다 수용액을 코팅용액으로 하여 표면처리 하였다.As in Example 1, the honeycomb reinforcing material was subjected to surface treatment using a fibrous honeycomb as a reinforcing material, and an aqueous solution of sodium silicate as a coating solution.
이렇게 처리된 허니컴 코어에 대하여 미리 제조 및 양생시킨 난연성 및 흡/차음 성능이 부여된 경질의 폴리우레탄폼을 표면 물유리 코팅 처리된 허니컴 코어에 대하여 가압, 충진시킨 허니컴 코어 복합재료를 제작하였다. 이렇게 하여 제작된 허니컴 코어 복합재료의 압축 및 전단 접착강도시험을 실시하여 충진처리 전과 후의 결과를 <표 1>에 나타내었다. 또한, 본 발명에 따른 허니컴 코어 복합재료의 단열, 난연 및 흡/차음 시험을 실시하여 그 결과를 <표 2> 및 <표 3>에 나타내었으며, 각 시험편에 대한 흡/차음 특성 비교그래프를 <도 3> 및 <도 4>에 각각 나타내었다. 그 결과 허니컴 코어 복합재료의 압축 및 전단 접착강도는 충진 처리전에 비하여 8.8배 및 2.5배가 각각 증가하였으며, 특히 기능적 측면에서 난연, 단열 및 흡/차음 효과가 우수하였다. 즉, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅처리와 더불어 발포수지의 충진에 의하여 보강용 심재 및 난연, 방음용 구조재로서 충분한 기능을 발휘할 수 있는 기능성 허니컴 코어 복합재료를 제조하였다.A honeycomb core composite material was prepared by pressurizing and filling a honeycomb core treated with a surface water glass coating with a rigid polyurethane foam, which was previously prepared and cured with respect to the honeycomb core treated and cured with a sound absorption and sound insulation. The honeycomb core composite material thus prepared was subjected to the compressive and shear bond strength tests, and the results before and after the filling treatment are shown in <Table 1>. The honeycomb core composite material according to the present invention was also subjected to the insulation, flame retardant, and sound absorption and sound insulation tests, and the results are shown in <Table 2> and <Table 3>. 3> and <FIG. 4>, respectively. As a result, the compressive and shear bond strengths of the honeycomb core composites were increased 8.8 times and 2.5 times, respectively, compared to before the filling treatment. That is, a functional honeycomb core composite material capable of exhibiting sufficient functions as a reinforcing core material, flame retardant, and soundproofing structural material by filling the foamed resin together with the surface water glass coating treatment of the honeycomb core according to the present invention was prepared.
[실시예 3]Example 3
실시예 1에서와 같이 박판상의 목재 허니컴을 보강재로 하여, 이 허니컴 보강재에 대하여 규산소다 수용액을 코팅용액으로 하여 표면처리 하였다. 이렇게 처리된 허니컴 코어에 대하여 난연성 및 흡/차음 성능이 부여된 페놀폼을 허니컴 셀 격자 내부로 분사하여 발포수지로 충진 처리된 허니컴 코어 복합재료를 제작하였다. 이렇게 하여 제작된 허니컴 코어 복합재료의 압축 및 전단 접착강도시험을 실시하여 충진처리 전과 후의 결과를 <표 1>에 나타내었다. 또한, 본 발명에 따른허니컴 코어 복합재료의 단열, 난연 및 흡/차음 시험을 실시하여 그 결과를 <표 2> 및 <표 3>에 나타내었으며, 각 시험편에 대한 흡/차음특성 비교그래프를 <도 3> 및 <도 4>에 각각 나타내었다. 그 결과 허니컴 코어 복합재료의 압축 및 전단 접착강도는 충진 처리전에 비하여 3.2배 및 2.7배가 각각 증가하였으며, 특히 기능적 측면에서 난연, 단열 및 흡/차음 효과가 우수하였다. 즉, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅 처리와 더불어 발포수지의 충진에 의하여 보강용 심재 및 난연, 방음용 구조재로서 충분한 기능을 발휘할 수 있는 기능성 허니컴 코어 복합재료를 제조하였다.As in Example 1, a thin plate honeycomb was used as a reinforcing material, and the honeycomb reinforcing material was subjected to surface treatment using an aqueous solution of sodium silicate as a coating solution. A honeycomb core composite material filled with a foamed resin was prepared by spraying a phenolic foam provided with flame retardancy and sound absorption / sound insulation to the honeycomb cell lattice. The honeycomb core composite material thus prepared was subjected to the compressive and shear bond strength tests, and the results before and after the filling treatment are shown in <Table 1>. In addition, the heat insulation, flame retardant, and sound absorption and sound insulation tests of the honeycomb core composite material according to the present invention were carried out, and the results are shown in <Table 2> and <Table 3>. 3> and <FIG. 4>, respectively. As a result, the compressive and shear bond strengths of honeycomb core composites were increased by 3.2 times and 2.7 times, respectively, compared to before the filling treatment. That is, a functional honeycomb core composite material capable of exhibiting sufficient functions as a reinforcing core material, flame retardant, and soundproofing structural material by filling the foamed resin together with the surface water glass coating treatment of the honeycomb core according to the present invention was prepared.
[실시예 4]Example 4
실시예 1에서와 같이 종이 허니컴을 보강재로 하여, 이 허니컴 보강재에 대하여 규산소다 수용액을 코팅용액으로 하여 표면처리 하였다. 이렇게 처리된 허니컴 심재에 대하여 미리 제조 및 양생시킨 난연성 및 흡/차음 성능이 부여된 연질의 PVC폼을 표면 물유리 코팅 처리된 허니컴에 대하여 가압, 충진시킨 허니컴 코어 복합재료를 제작하였다. 이렇게 하여 제작된 허니컴 코어 복합재료의 압축 및 전단 접착강도시험을 실시하여 충진처리 전과 후의 결과를 <표 1>에 나타내었다. 또한, 본 발명에 따른 허니컴 코어 복합재료의 단연, 난연 및 흡/차음 시험을 실시하여 그 결과를 <표 2> 및 <표 3>에 나타내었으며, 각 시험편에 대한 흡/차음특성 비교그래프를 <도 3> 및 <도 4>에 각각 나타내었다. 그 결과 허니컴 코어의 압축 및 전단 접착강도는 충진 처리전에 비하여 7.1배 및 4.1배가 각각 증가하였으며, 특히 기능적 측면에서 난연, 단열 및 흡/차음 효과가 우수하였다. 즉, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅 처리와 더불어 발포수지의 충진에 의하여 보강용 심재 및 난연, 방음용 구조재로서 충분한 기능을 발휘할 수 있는 기능성 허니컴 코어 복합재료를 제조하였다.As in Example 1, paper honeycomb was used as a reinforcing material, and the honeycomb reinforcing material was subjected to surface treatment using an aqueous solution of sodium silicate as a coating solution. The honeycomb core composite material was manufactured by pressing and filling a flexible PVC foam, which was previously prepared and cured with respect to the honeycomb core material treated in this way, and which was given sound-absorbing / soundproofing performance, to a honeycomb treated with surface water glass coating. The honeycomb core composite material thus prepared was subjected to the compressive and shear bond strength tests, and the results before and after the filling treatment are shown in <Table 1>. In addition, the honeycomb core composite material according to the present invention was carried out by the smoke test, flame retardant and sound absorption / sound insulation test results are shown in <Table 2> and <Table 3>, the comparison graph of the sound absorption / sound insulation characteristics for each test piece < It showed in FIG. 3> and <FIG. 4>, respectively. As a result, the compressive and shear bond strengths of the honeycomb core were increased by 7.1 times and 4.1 times, respectively, compared to before the filling treatment. That is, a functional honeycomb core composite material capable of exhibiting sufficient functions as a reinforcing core material, flame retardant, and soundproofing structural material by filling the foamed resin together with the surface water glass coating treatment of the honeycomb core according to the present invention was prepared.
[실시예 5]Example 5
실시예 1에서와 같이 판상의 목재 허니컴을 보강재로 하여, 이 허니컴 보강재에 대하여 규산소다 수용액을 코팅용액으로 하여 표면처리 하였다. 이렇게 처리된 허니컴 코어에 대하여 난연성 및 흡/차음 성능이 부여된 경질의 페놀폼을 허니컴 셀 격자 내부로 분사하여 발포수지로 충진 처리된 허니컴 코어 복합재료를 제작하였다. 이렇게 하여 제작된 허니컴 코어 복합재료의 압축 및 전단 접착강도시험을 실시하여 충진처리 전과 후의 결과를 <표 1>에 나타내었다. 또한, 본 발명에 따른 허니컴 코어 복합재료의 단열, 난연 및 흡/차음 시험을 실시하여 그 결과를 <표 2> 및 <표 3>에 나타내었으며, 각 시험편에 대한 흡/차음특성 비교그래프를 <도 3> 및 <도 4>에 각각 나타내었다. 그 결과 허니컴 코어의 압축 및 전단 접착강도는 충진 처리전에 비하여 4.2배 및 2.9배가 각각 증가하였으며, 특히 기능적 측면에서 난연, 단열 및 흡/차음 효과가 우수하였다. 즉, 본 발명에 따른 허니컴 코어의 표면 물유리 코팅 처리와 더불어 발포수지의 충진에 의하여 보강용 심재 및 난연, 방음용 구조재로서 충분한 기능을 발휘할 수 있는 기능성 허니컴 코어 복합재료를 제조하였다.As in Example 1, the plate-like wood honeycomb was used as a reinforcing material, and the honeycomb reinforcing material was subjected to surface treatment using an aqueous solution of sodium silicate as a coating solution. A honeycomb core composite material filled with a foamed resin was prepared by spraying a hard phenolic foam having a flame retardancy and sound absorption / sound insulation performance to the honeycomb cell lattice. The honeycomb core composite material thus prepared was subjected to the compressive and shear bond strength tests, and the results before and after the filling treatment are shown in <Table 1>. The honeycomb core composite material according to the present invention was also subjected to the insulation, flame retardant, and sound absorption and sound insulation tests. The results are shown in <Table 2> and <Table 3>. 3> and <FIG. 4>, respectively. As a result, the compressive and shear bond strengths of the honeycomb core were increased by 4.2 times and 2.9 times, respectively, compared to before the filling treatment. That is, a functional honeycomb core composite material capable of exhibiting sufficient functions as a reinforcing core material, flame retardant, and soundproofing structural material by filling the foamed resin together with the surface water glass coating treatment of the honeycomb core according to the present invention was prepared.
각 실시예에 따른 기계적 물성 측정에서 압축 및 전단 접착강도는 KSF3517에 준하여 측정하였으며, 이에 따른 시편의 종류는 셀의 형태에 따라 다양한 형태의사용이 가능하며, 각각의 셀 크기는 10mm로 하였다. 각 시험에 따른 시험편의 크기는 압축강도의 경우 길이 50mm, 폭 50mm, 두께 25mm으로, 전단 접착강도시험은 길이 200mm, 폭 75mm, 두께 25mm으로 재단하여 사용하였다. 이때, 압축강도 시험에서는 시험편의 하중면 처리를 에폭시 수지로 보강하였으며, 전단 접착강도 시험은 시편과 같은 크기의 알루미늄 판 (두께 0.8mm)을 표면재로 하여 양쪽 끝 부분을 에폭시 수지로 접착 결합시켜 시험하였다. 각각의 시편은 90℃의 건조 오븐에서 약 12시간 동안 완전 건조시킨 후 시험하였으며, 재하속도 1 mm/분으로 하여 압축강도 및 전단 접착강도를 측정하였으며, 그 결과를 각 실시예에 따라 처리하지 않은 시편과 비교하여 <표 1>에 나타내었다.In the measurement of mechanical properties according to each embodiment, the compressive and shear bond strengths were measured according to KSF3517, and according to the shape of the cell, various types of specimens could be used, and each cell size was 10 mm. The specimen size according to each test was 50mm in length, 50mm in width and 25mm in thickness for compressive strength, and the shear bond strength test was cut and used in length of 200mm, width of 75mm and thickness of 25mm. At this time, in the compressive strength test, the load surface treatment of the test piece was reinforced with epoxy resin, and the shear bond strength test was performed by adhesively bonding both ends of the test piece with an epoxy resin using an aluminum plate having the same size as the specimen (thickness of 0.8 mm). It was. Each specimen was tested after being completely dried in a drying oven at 90 ° C. for about 12 hours, and the compressive strength and the shear bond strength were measured at a loading speed of 1 mm / minute, and the results were not treated according to each example. It is shown in <Table 1> compared with the test piece.
또한 상기 각 실시예에 따라 제조된 발포수지로 충진처리된 허니컴 코어 복합재료를 KSF 2819의 건축용 얇은 재료의 난연성 시험방법에 따라 난연성 시험을 행하였다. 가열시험에 사용된 장비로서 버너는 높이 160mm, 내경 20mm의 메켈버너를 사용하였으며, 그 연료는 부탄 및 부틸렌을 주재로 한 액화석유가스 2종 4호를 사용하였다. 시험을 행하기 전 각 시험체를 50±2℃의 항온 건조로에서 약 48시간 이상 건조시킨 후 이를 다시 실리카겔을 넣은 데시케이터내에서 24시간 이상 방치한 후 가열시험을 행하였다.In addition, the honeycomb core composite material filled with the foamed resin prepared according to each of the above examples was subjected to a flame retardancy test according to the flame retardancy test method of the thin building material of KSF 2819. As the equipment used for the heating test, a burner was used as a Mekel burner having a height of 160 mm and an inner diameter of 20 mm, and the fuel was a liquefied petroleum gas Class 2 or 4 mainly composed of butane and butylene. Before the test, each test body was dried in a constant temperature drying furnace at 50 ± 2 ° C. for at least 48 hours, and then left in a desiccator containing silica gel for at least 24 hours, followed by a heating test.
이때, 각 시험편의 크기는 30×20×4.5mm로, 가열시간 10, 20, 30, 60, 120, 180초로 하여 각 가열시간에 대하여 3회 이상 시험하여 그 결과를 <표 2>에 나타내었다.At this time, the size of each test piece was 30 × 20 × 4.5 mm, the heating time was 10, 20, 30, 60, 120, 180 seconds, and tested three times or more for each heating time, and the results are shown in <Table 2>. .
상기 각 실시예에 따라 제조된 발포수지 충진 허니컴 코어 복합재료의 방음효과를 알아보기 위하여 각 시험편에 대하여 흡음 및 차음시험을 행하였다. 시험편의 흡음성능평가는 KSF 2805의 잔향실내의 흡음률 측정방법에 따라 두께 10mm, 면적 4.5㎡ (1,500×3,000mm)의 시험편에 대하여 중심주파수 125∼4,000Hz로 하여 잔향실 바닥에 깔고, 시료의 측면 테두리는 철제 테이프로 마감 처리한 후 측정하였다 이때, 음원실의 용적은 65㎥, 1/3 옥타브 대역의 잡음을 음원으로 하였으며, 잔향시간의 측정은 잔향실 내 수음점을 3점 이상 골라서 실시하였다. 또한 시험편의 차음성능 평가를 위하며 KSF 2808의 실험실에서의 음향투과 손실 측정방법에 따라 두께 10mm, 면적 3.0㎡ (1,500×2,000mm)의 시험편을 시편설치용 개구부에 고정시킨 후 시험편의 측면 이음새 부위는 진흙으로 기밀 처리하였다. 이때, 음원실의 용적은 65㎥, 수음실 용적 68㎥, 1/3 옥타브 대역의 잡음을 음원으로 하였으며, 음원의 중심주파수를 125∼4,000Hz로 하여 측정하였다. 또한, 상기의 흡음 및 차음시험은 각 시험편에 대하여 24회 측정하여 그 평균값을 <표 3>에 나타내었다.In order to examine the sound insulation effect of the foamed resin-filled honeycomb core composites prepared according to the above examples, sound absorption and sound insulation tests were performed on each test piece. Evaluation of the sound absorption performance of the test piece was carried out on the bottom of the reverberation chamber with a center frequency of 125 to 4,000 Hz for a test piece of 10 mm thickness and 4.5 m2 (1,500 × 3,000 mm) in accordance with the KSF 2805 sound absorption coefficient measurement method. The rim was measured after finishing with steel tape. At this time, the volume of the sound source room was 65㎥, 1/3 octave of noise as the sound source, and the reverberation time was measured by selecting more than three sound points in the reverberation room. In addition, to evaluate the sound insulation performance of the test piece, the test piece of 10mm thickness and 3.0㎡ (1,500 × 2,000mm) was fixed to the specimen installation opening according to the acoustic transmission loss measurement method in the laboratory of KSF 2808, and then the side seam of the test piece was It was airtight with mud. At this time, the volume of the sound source chamber was 65㎥, the volume of the sound receiving chamber was 68㎥, the noise of 1/3 octave band as a sound source, and the center frequency of the sound source was measured at 125 to 4,000 Hz. In addition, the said sound absorption and sound insulation test measured 24 times about each test piece, and the average value was shown in <Table 3>.
* <표 1>에서 무게는 시험편의 크기가 각각 100×100×25mm일 때이며, 각실시예에 따라 5회 측정하여 평균한 것을 측정값으로 나타내었다.* In <Table 1>, the weight is when the size of the test piece is 100 * 100 * 25mm, respectively, and it measured and averaged 5 times according to each Example and represented as the measured value.
* <표 2>에서 시험편의 크기는 각 시험규격에 따라 제작하였으며, 각 실시예에 따라 3회 측정하여 평균한 것을 그 측정값으로 나타내었다.* In Table 2, the size of the test piece was manufactured according to each test standard, and the average of three times of measurement according to each Example was expressed as the measured value.
* <표 3>은 측정 주파수에 대한 각 시험편의 흡음계수와 투과손실을 나타내었으며, 이에 따른 소음감쇠계수 (NRC)는 측정주파수가 250, 500, 1000 및 2000Hz에서의 흡음계수를 산술평균하였으며, 차음등급 (STC)은 측정주파수가 500Hz대역에서의 평균 투과손실값으로 나타내었다.* Table 3 shows the sound absorption coefficient and transmission loss of each test specimen with respect to the measurement frequency, and the corresponding noise attenuation coefficient (NRC) is the arithmetic mean of the sound absorption coefficients at 250, 500, 1000, and 2000 Hz. The sound insulation grade (STC) is expressed as the average transmission loss value in the 500Hz band.
본 발명에 따른 허니컴 코어재는 표면 물유리 코팅 처리를 통한 경량성 유지, 내압축성, 내인장성, 내마모성, 내굽힘성, 내후ㆍ내습성등의 물리적ㆍ기계적 물성의 향상과 더불어 다양한 기능성 발포수지의 충진처리를 통한 허니컴 코어 복합재료의 제조방법에 관한 것이다. 좀 더 상세히 말하면, 본 발명의 실시예에 따른 허니컴 심재 표면 물유리 코팅처리와 발포수지의 충진처리를 통하여 제작된 기능성 허니컴 코어 복합재는 <표 1>에 나타난 바와 같이 충진처리 전과 후의 무게 변화나 외관상 구조의 변화는 거의 없으며, 기계적 물성은 충진 처리하지 않은 기존 허니컴 심재에 비교하여 압축감도는 3.2∼8.8배, 전단 접착강도는 2.5∼4.1배 이상 증가된 경량ㆍ내압축성이 우수한 보강재용 허니컴 코어의 제조가 가능함을 알 수 있다.The honeycomb core material according to the present invention is filled with various functional foam resins along with improvement of physical and mechanical properties such as maintaining lightness, compressive resistance, tensile resistance, abrasion resistance, bending resistance, weather resistance and moisture resistance through surface water glass coating treatment. It relates to a method for producing a honeycomb core composite material through. In more detail, the functional honeycomb core composite prepared through the honeycomb core surface water glass coating process and the foaming resin filling process according to the embodiment of the present invention has a weight change or appearance structure before and after the filling process as shown in <Table 1>. There is almost no change in the production of honeycomb core for reinforcement with excellent light weight and compression resistance, which has 3.2 ~ 8.8 times higher compressive sensitivity and 2.5 ~ 4.1 times higher shear bond strength than conventional honeycomb core without mechanical properties. It can be seen that.
또한, 허니컴 셀 격자 충진 발포수지의 다양한 기능성에 의한 난연 및 흡/차음 특성효과는 기존의 일반 석고패널, 일반 EPS패널 및 미네랄 을 충진 복합패널에 비하여 단열성은 최하 1.6에서 최고 3.9배가 증가하였으며, 이에 따른 난연특성도 우수하게 나타남을 알 수 있다. 또한, 발포수지의 흡음 및 차음효과도 기존 방음패널에 비하여 흡음성능 1.5∼1.7배, 차음성능 1.8∼2.0배가 각각 증가된 기능성 허니컴 코어 복합재료의 제조가 가능함을 알 수 있다.In addition, the effect of flame retardant and sound absorption / sound insulation due to various functionalities of honeycomb cell lattice-filled foamed resin was increased from 1.6 to 3.9 times higher than that of conventional gypsum panel, EPS panel, and mineral-filled composite panel. It can be seen that the flame retardancy characteristics are excellent. In addition, it can be seen that the sound-absorbing and sound-proofing effect of the foamed resin is also possible to manufacture a functional honeycomb core composite material having an increased sound absorption performance of 1.5 to 1.7 times and sound insulation performance of 1.8 to 2.0 times, respectively, compared to the existing sound insulation panel.
이와 같은 따른 허니컴 심재의 발포수지 충진처리를 통하여 기존의 보강재용 아라미드 및 알루미늄 허니컴 심재 및 건축 구조재용 석고패널 및 유리섬유 충진 복합패널에 비하여 저렴하면서도, 충진처리에 따른 별도의 기계장치나 설비가 간단하게 제작이 가능하다. 또한, 다기능 부여에 따른 추가 공정이 필요없이 연속공정이 가능하여 시간적 및 경제적으로도 유리하다.The honeycomb core material is filled with foamed resin, which is cheaper than conventional aramid for reinforcement and aluminum honeycomb core material and gypsum panel and glass fiber filled composite panel for building structural materials. It is possible to make. In addition, it is also advantageous in terms of time and economics as a continuous process is possible without the need for an additional process according to the multifunction.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005028194A1 (en) * | 2003-09-24 | 2005-03-31 | Kiho Park | A method of making honeycomb structure |
KR100741392B1 (en) * | 2006-09-07 | 2007-07-20 | 채수하 | Fire retardant and noniflammable sandwich panel |
KR100826958B1 (en) * | 2007-02-09 | 2008-05-02 | 김승현 | A honey-comb and panel having the same and methode for manufacturing the honey-comb and panel |
CN110154703A (en) * | 2019-06-28 | 2019-08-23 | 东莞职业技术学院 | Composite filled Aluminum Honeycomb Cores and the arrangements for automotive doors for using the aluminium core |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0257328A (en) * | 1988-08-23 | 1990-02-27 | Nishikawa Shiki Kk | Honeycomb structure and manufacture thereof |
KR910011445A (en) * | 1989-12-18 | 1991-08-07 | 송수창 | Method of manufacturing phenolic resin foam insulation board containing honey cam |
JPH09195441A (en) * | 1996-01-23 | 1997-07-29 | Riboole:Kk | Manufacture of lightweight heat insulating waterproof panel |
JPH11277650A (en) * | 1998-03-26 | 1999-10-12 | Showa Aircraft Ind Co Ltd | Manufacture of honeycomb core filled with foam |
KR20020062108A (en) * | 2001-01-17 | 2002-07-25 | 주식회사 솔나노켐 | Honeycomb core for sandwich-structure material and the preparation method thereof |
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2001
- 2001-05-04 KR KR1020010024491A patent/KR20020084660A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0257328A (en) * | 1988-08-23 | 1990-02-27 | Nishikawa Shiki Kk | Honeycomb structure and manufacture thereof |
KR910011445A (en) * | 1989-12-18 | 1991-08-07 | 송수창 | Method of manufacturing phenolic resin foam insulation board containing honey cam |
JPH09195441A (en) * | 1996-01-23 | 1997-07-29 | Riboole:Kk | Manufacture of lightweight heat insulating waterproof panel |
JPH11277650A (en) * | 1998-03-26 | 1999-10-12 | Showa Aircraft Ind Co Ltd | Manufacture of honeycomb core filled with foam |
KR20020062108A (en) * | 2001-01-17 | 2002-07-25 | 주식회사 솔나노켐 | Honeycomb core for sandwich-structure material and the preparation method thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005028194A1 (en) * | 2003-09-24 | 2005-03-31 | Kiho Park | A method of making honeycomb structure |
KR100741392B1 (en) * | 2006-09-07 | 2007-07-20 | 채수하 | Fire retardant and noniflammable sandwich panel |
KR100826958B1 (en) * | 2007-02-09 | 2008-05-02 | 김승현 | A honey-comb and panel having the same and methode for manufacturing the honey-comb and panel |
CN110154703A (en) * | 2019-06-28 | 2019-08-23 | 东莞职业技术学院 | Composite filled Aluminum Honeycomb Cores and the arrangements for automotive doors for using the aluminium core |
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