KR20180047647A - Manufacturing method for form sheet - Google Patents
Manufacturing method for form sheet Download PDFInfo
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- KR20180047647A KR20180047647A KR1020160144192A KR20160144192A KR20180047647A KR 20180047647 A KR20180047647 A KR 20180047647A KR 1020160144192 A KR1020160144192 A KR 1020160144192A KR 20160144192 A KR20160144192 A KR 20160144192A KR 20180047647 A KR20180047647 A KR 20180047647A
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- foam sheet
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- B29C47/0021—
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B29C47/004—
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- B29C47/0064—
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/026—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of layered or coated substantially flat surfaces
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/365—Coating
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- 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
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
- B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Abstract
Description
본 발명은 폼시트 제조방법에 관한 것으로서, 더욱 상세하게는 열가소성폴리우레탄으로 형성된 폴리우레탄시트에 상변화물질을 코팅하여 보온특성을 가진 경량인 폼시트 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a foam sheet, and more particularly, to a method for producing a lightweight foam sheet having a heat insulating property by coating a polyurethane sheet formed of a thermoplastic polyurethane with a phase change material.
최근, 인체에 무해한 친환경 소재에 대해 관심이 증가되면서, 환경오염과 인체 유해성 논란이 있는 폴리염화비닐(PVC) 및 합성수지들을 대체할 수 있는 물질의 개발이 촉진되고, 그 수요가 점차 늘어나는 추세이다.In recent years, there has been an increasing interest in environmentally friendly materials that are harmless to the human body, and the development of materials capable of replacing polyvinyl chloride (PVC) and synthetic resins, which are controversial for environmental pollution and human harm, has been promoted and the demand thereof is increasing.
이에 따라, 환경과 인체에 무해한 친환경적 소재인 열가소성 폴리우레탄(TPU: Thermoplastic PolyUrethane)이 신발, 의류, 침구류, 가방 등의 소재로 사용되는 추세를 나타냈다.As a result, thermoplastic polyurethane (TPU), an environmentally friendly material harmless to the environment and human body, has been used as a material for footwear, clothes, bedding, and bags.
하지만, 열가소성 폴리우레탄(TPU)은 폴리염회비닐과 같은 소재에 비해 원자재 값이 고가이고, 비중이 다른 소재에 비해 높은편으로, 경량인 제품을 제조하기 위한 소재로는 적합하지 않은 문제점이 있었다. However, the thermoplastic polyurethane (TPU) has a problem in that it is not suitable as a material for producing a lightweight product because the raw material value is higher than that of a material such as polychlorinated vinyl and is higher than those of materials having different specific gravity.
또한 열가소성 폴리우레탄(TPU) 또는 기존에 널리 사용되던 합성수지 등으로 제품을 제작하였을 때, 날씨, 계절변화에 따른 외부 온도 변화에 견디는 특성이 부족한 문제점이 있었고, 이로 인해 사용자가 그 제품을 유용하게 활용하는데 한계가 있었다.In addition, when a product is manufactured using a thermoplastic polyurethane (TPU) or a widely used synthetic resin, there is a problem in that it lacks characteristics to withstand external temperature changes due to weather and seasonal changes. As a result, .
앞선 배경기술에서 도출된 문제점을 해결하기 위한 본 발명의 목적은, 친환경적이고 인체에 무해하며, 보온특성을 가진 경량의 폼시트를 제공하는 것이다.An object of the present invention is to provide a lightweight foam sheet which is environmentally friendly, harmless to the human body, and has a warming property.
본 발명의 다른 목적은 상변화물질의 상변화에 의한 폼시트의 형태 변형을 방지하는 것이다.Another object of the present invention is to prevent morphological deformation of the foam sheet due to phase change of the phase change material.
한편, 본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 명확하게 이해될 수 있을 것이다.Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.
본 발명의 폼시트 제조방법은, 열가소성 폴리우레탄 수지(TPU)와 발포제를 혼합하여 혼합용액을 제조하는 혼합용액 제조단계, 상기 혼합용액을 압출하여 폴리우레탄시트를 형성하는 폴리우레탄시트 형성단계, 상기 폴리우레탄시트의 표면에 상변화물질(PCM)을 코팅하여 건조하는 상변화물질 코팅단계 및 상기 상변화물질의 용융에 의한 누출를 방지하기 위해 상기 상변화물질의 표면에 방액소재를 코팅하는 방액소재 코팅단계를 포함하는 것을 특징으로 한다.The method for producing a foam sheet according to the present invention comprises the steps of preparing a mixed solution by mixing a thermoplastic polyurethane resin (TPU) and a foaming agent to prepare a mixed solution, forming a polyurethane sheet by extruding the mixed solution, A phase change material coating step of coating a surface of a polyurethane sheet with a phase change material (PCM) and drying the surface of the polyurethane sheet, and a liquid material coating step of coating a liquid material on the surface of the phase change material to prevent leakage of the phase change material by melting The method comprising the steps of:
상기 방액소재 코팅단계 이후에, 상기 폼시트를 전기 또는 고압 프레스로 압착하여 일정간격 이격된 구획을 형성하는 구획 형성단계를 더 포함하는 것을 특징으로 한다. And forming a partition spaced apart at a predetermined interval by pressing the foam sheet with an electric or high-pressure press after the liquid-pervious material coating step.
상기 혼합용액 제조단계는, 열가소성 폴리우레탄 수지 85 내지 95 중량% 및 발포제 5 내지 15 중량%를 포함하는 것을 특징으로 한다.The mixing solution preparation step is characterized by comprising 85 to 95% by weight of a thermoplastic polyurethane resin and 5 to 15% by weight of a foaming agent.
상기 열가소성 폴리우레탄 수지는, 폴리올과, 이소시아네이트 화합물 또는 디이소시아네이트 화합물을 포함하는 것을 특징으로 한다.The thermoplastic polyurethane resin is characterized by comprising a polyol and an isocyanate compound or a diisocyanate compound.
상기 상변화물질은, n-옥타코산, n-헵타코산, n-헥사코산, n-테트라코산, n-트리코산, n-도코산, n-헤네이코산,n-아이코산, n-노나데칸, n-옥타데칸, n-헵타데칸, n-헥사데칸, n-펜타데칸, n-테트라데칸 및 n-트리데칸 중 적어도 하나를 포함하는 것을 특징으로 한다.Wherein the phase change material is selected from the group consisting of n-octanoic acid, n-heptanoic acid, n-hexanoic acid, n-tetracholanic acid, N-octadecane, n-heptadecane, n-hexadecane, n-pentadecane, n-tetradecane, and n-tridecane.
상기한 실시예에 따른 본 발명에 의하면 다음과 같은 효과를 기대할 수 있다.According to the present invention, the following effects can be expected.
1) 발포제를 첨가하여 폴리우레탄시트를 형성함으로써 인체 무해한 경량의 폼시트를 제공하고, 상변화물질을 코팅함으로써 보온특성을 가진 폼시트를 제공할 수 있다.1) A foaming agent is added to form a polyurethane sheet to provide a lightweight foam sheet which is harmless to the human body, and a foam sheet having insulation properties can be provided by coating the phase change material.
2) 마디를 형성하여 구획을 나눔으로써 폼시트의 형태가 변형되는 것을 방지할 수 있다.2) It is possible to prevent the form of the foam sheet from being deformed by forming the nodules and dividing the compartment.
도 1은 본 발명에 따른 폼시트 제조방법의 흐름도.
도 2는 본 발명에 따른 폼시트의 단면도.
도 3은 본 발명에 따른 구획이 형성된 폼시트의 단면도.1 is a flow chart of a method of producing a foam sheet according to the present invention;
2 is a sectional view of a foam sheet according to the present invention.
3 is a cross-sectional view of a foam sheet having a compartment according to the present invention;
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다. 그리고 본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며, 본 발명을 제한하고자 하는 것이 아니다. 본 명세서에서 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다.BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various different forms, and these embodiments are not intended to be exhaustive or to limit the scope of the present invention to the precise form disclosed, It is provided to inform the person completely of the scope of the invention. And the terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. The singular forms herein include plural forms unless the context clearly dictates otherwise.
이하, 첨부된 도면들을 참조하면서 본 발명의 바람직한 실시예에 대해 상세히 설명하기로 한다. 한편, 해당 기술분야의 통상적인 지식을 가진자로부터 용이하게 알 수 있는 구성과 그에 대한 작용 및 효과에 대한 도시 및 상세한 설명은 간략히 하거나 생략하고 본 발명과 관련된 부분들을 중심으로 상세히 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Brief Description of Drawings FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention; FIG. 2 is a block diagram of a computer system according to an embodiment of the present invention; FIG.
도 1은 본 발명에 따른 폼시트 제조방법의 순서도이다. 그리고 도 2는 본 발명에 따른 폼시트의 단면도이다. 이하에서는 도 1과 도 2를 참조하여 본 발명에 대해 상세히 설명하겠다. 1 is a flowchart of a method for producing a foam sheet according to the present invention. And Fig. 2 is a cross-sectional view of the foam sheet according to the present invention. Hereinafter, the present invention will be described in detail with reference to FIG. 1 and FIG.
본 발명에 따른 폼시트 제조방법은 혼합용액 제조단계(S10), 폴리우레탄시트 형성단계(S20), 상변화물질 코팅단계(S30) 및 방액소재 코팅단계(S40)를 포함하여 구성될 수 있다. The method for producing a foam sheet according to the present invention may include a step (S10) for producing a mixed solution, a step (S20) for forming a polyurethane sheet, a step (S30) for coating a phase change material and a step (S40)
혼합용액 제조단계(S10)는 열가소성 폴리우레탄 수지(TPU: Thermoplastic polyurethane)와 발포제를 혼합하여 혼합용액을 제조하는 단계이다. The mixed solution preparation step (S10) is a step of mixing a thermoplastic polyurethane (TPU) and a foaming agent to prepare a mixed solution.
혼합용액 제조단계(S10)에서 열가소성 폴리우레탄 수지는 85 내지 95 중량%를 포함되고 발포제는 5 내지 15 중량%를 포함될 수 있다. 또한 열가소성 폴리우레탄 수지는 융점이 160 ℃ 미만인 것을 사용할 수 있다.In the mixed solution preparation step (S10), the thermoplastic polyurethane resin may be contained in an amount of 85 to 95% by weight and the blowing agent may be contained in an amount of 5 to 15% by weight. The thermoplastic polyurethane resin may have a melting point lower than 160 캜.
그리고 열가소성 폴리우레탄 수지는 폴리올과 이소시아네이트 화합물 또는 디이소시아네이트 화합물을 포함하여 구성될 수 있다.And the thermoplastic polyurethane resin may comprise a polyol and an isocyanate compound or a diisocyanate compound.
폴리올은 일반적으로 널리 사용되는 물질로서, 폴리에스테르글리콜, 폴리에테르글리콜, 폴리카보이네트글리콜, 폴리에틸렌글리콜, 폴리프로필렌글리콜, 폴리트리메틸렌 에테르 글리콜, 폴리트리메틸렌 에테르에스테르 글리콜 중 적어도 하나 이상 포함하여 구성될 수 있다.The polyol is a generally widely used substance and is composed of at least one of polyester glycol, polyether glycol, polycarbonate glycol, polyethylene glycol, polypropylene glycol, polytrimethylene ether glycol and polytrimethylene ether ester glycol .
특히, 폴리에스테르글리콜을 사용함으로써 열가소성 폴리우레탄 수지의 강성, 내유성 및 내화학성을 개선할 수 있고, 저온특성, 내항균성 등을 개선할 수 있다. Particularly, by using polyester glycol, it is possible to improve the rigidity, oil resistance and chemical resistance of the thermoplastic polyurethane resin, and it is possible to improve low-temperature characteristics, anti-bacterial resistance and the like.
또한 열가소성 폴리우레탄 수지를 구성 물질인 이소시아네이트 화합물과 디이소시아네이트 화합물은 모두 일반적으로 사용되는 것으로, 본 발명에서 그 종류를 특정하지는 않는다. In addition, the isocyanate compound and the diisocyanate compound constituting the thermoplastic polyurethane resin are generally used, and the kind thereof is not specified in the present invention.
예를 들어, 본 발명에 따른 열가소성 폴리우레탄 수지는 이소시아네이트, 디이소시아네이트, 메틸렌 디펠닐 디이소시아네이트, 폴리머릭 메틸렌 이소시아네이트, 톨루엔 디이소시아네이트, 헥사메틸렌 이소시아네이트, 헥사메틸렌 디이소시아네이트, 트레메틸 헥사메틸렌 디이소시아네이트, 디메틸 디페닐 이소시아네이트, 디메틸 디페닐 디이소시아네이트, 테트라 메틸렌 디이소시아네이트, 트리페닐 메탄 트리이소시아네이트 및 그들의 혼합물로 이루어진 화합물 중 적어도 하나 이상 사용될 수 있다.For example, the thermoplastic polyurethane resin according to the present invention may be selected from the group consisting of isocyanate, diisocyanate, methylene diphenyldiisocyanate, polymeric methylene isocyanate, toluene diisocyanate, hexamethylene isocyanate, hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, dimethyl At least one compound selected from diphenyl isocyanate, dimethyl diphenyl diisocyanate, tetramethylene diisocyanate, triphenyl methane triisocyanate, and mixtures thereof may be used.
본 발명에 따른 혼합용액에 포함되는 발포제는 물, 알칸, CO2, 히드로플루오로카본, 퍼플루오로카본, 클로로플루오로카본 중 적어도 하나 이상 포함될 수 있다. 또한 발포제는 마이크로 크기의 캡슐 형태로 형성될 수 있다.The foaming agent contained in the mixed solution according to the present invention may include at least one of water, alkane, CO2, hydrofluorocarbon, perfluorocarbon, and chlorofluorocarbon. The blowing agent may also be formed into micro-sized capsules.
발포제는 혼합용액에 포함되며, 열가소성 폴리우레탄 수지로만 구성될 때 보다 비중을 낮출 수 있으며, 혼합용액을 시트형태로 제조하였을 때, 열가소성 폴리우레탄으로만 형성된 시트일 때 보다 경량의 시트가 제조되도록 할 수 있다.The foaming agent is contained in the mixed solution and can have a lower specific gravity than when it is composed solely of a thermoplastic polyurethane resin. When the mixed solution is prepared into a sheet form, a lightweight sheet can be produced compared to a sheet formed only of thermoplastic polyurethane .
혼합용액이 제조된 이후에는, 혼합용액이 시트형태로 형성되어 폴리우레탄시트(110)가 형성되는 폴리우레탄시트 형성단계(S20)가 수행된다.After the mixed solution is prepared, a polyurethane sheet forming step (S20) is performed in which a mixed solution is formed into a sheet form to form a polyurethane sheet (110).
폴리우레탄시트 형성단계(S20)는 혼합용액을 압출하여 시트형태로 제조하는 단계이다. 혼합용액을 압출하는 방식으로는 수평 압출식 또는 하향 압출식으로 수행될 수 있다.The polyurethane sheet forming step (S20) is a step of extruding the mixed solution into a sheet form. The mixed solution may be extruded by a horizontal extrusion type or a downward extrusion type.
폴리우레탄시트 형성단계(S20)는 발포제가 반응하여 발포될 수 있도록 160 내지 250℃의 온도범위에서 수행되며, 보다 바람직하게는 발포제가 과발포되는 것을 방지하기 위해 160 내지 200℃의 온도범위로 유지되며 수행될 수 있다.The polyurethane sheet forming step (S20) is carried out at a temperature ranging from 160 to 250 ° C so that the foaming agent can be reacted and foamed. More preferably, the foaming agent is maintained in a temperature range of 160 to 200 ° C And can be performed.
폴리우레탄시트 형성단계(S20)에서 발포된 폴리우레탄시트(110)가 형성된 이후, 폴리우레탄시트(110)의 표면에 상변화물질(120)이 코팅되어 건조되는 상변화물질 코팅단계(S30)가 진행된다. 여기서 상변화물질(PCM: Phase Change Material)(120)이란 상변화과정을 통하여 많은 양의 열에너지를 축적하거나 방출하는 물질이다. 보다 구체적으로 설명하면, 고체상태에서 액체상태로 상이 변화하거나, 액체에서 기체, 기체에서 액체 등으로 상이 변화하면서 열을 축적하거나 방출하면서 자율적으로 온도를 조절할 수 있는 물질을 의미한다. The phase change material coating step S30 in which the
본 발명에 따른 폼시트는 폴리우레탄시트(110) 표면에 상변화물질(120)을 코팅하여 건조시켜 형성됨으로써 자율적으로 온도 조절이 가능하게 구성될 수 있다.The foam sheet according to the present invention is formed by coating the surface of the
본 발명에 따른 상변화물질(120)은 n-옥타코산, n-헵타코산, n-헥사코산, n-테트라코산, n-트리코산, n-도코산, n-헤네이코산,n-아이코산, n-노나데칸, n-옥타데칸, n-헵타데칸, n-헥사데칸, n-펜타데칸, n-테트라데칸 및 n-트리데칸 중 적어도 하나 이상 포함하여 구성될 수 있다. 이 이외에도 본 발명에 따른 상변화물질(120)은 어느 물질에 한정되지 않으며 다양한 종류의 상변화물질(120)이 이용될 수 있다. The
방액소재 코팅단계(S40)는 상변화물질(120)이 코팅된 표면을 방액소재(130)로 코팅하는 단계이다. 방액소재(130)란 상변화물질(120)이 액체상태 및 기체상태일 때 외부로 누출되는 것을 방지하기 위한 소재이다. The liquid-pervious material coating step (S40) is a step of coating the surface coated with the phase-change material (120) with the liquid-pervious material (130). The liquid-
본 발명에 따른 방액소재(130)는 어떠한 물질에 한정하지 않으며, 밀봉 또는 밀폐시킬 수 있는 것은 어느 것이나 사용될 수 있다. 예를 들면, 방액소재(130)는 비닐류로 상변화물질(120) 표면에 코팅되어 상변화물질(120)을 밀폐시킬 수 있으며, 나노섬유들로 구성되어 방수 기능을 할 수 있는 섬유일 수도 있다.The liquid-
도 3은 본 발명의 일 실시 예에 따라, 구획이 나눠진 폼시트의 단면도이다. Figure 3 is a cross-sectional view of a foam sheet with a sectioned section, according to one embodiment of the present invention.
도 1과 도 3을 참조하여 설명하면, 본 발명에 일 실시 예에 따른 폼시트 제조방법은 방액소재 코팅단계(S40) 이후에 구획 형성단계(S50)을 더 포함하여 구성될 수 있다. Referring to FIGS. 1 and 3, the method of manufacturing a foam sheet according to an embodiment of the present invention may further include a compartment forming step (S50) after the liquid-permeable material coating step (S40).
구획 형성단계(S50)는 폼시트를 전기 또는 고압 프레스로 압착하여 일정간격 이격된 구획을 형성하는 단계이다. 더욱 구체적으로 설명하면, 구획형성단계(S50)는 폼시트에서 일정간격 이격된 위치마다 전기 또는 고압 프레스로 압착하여 마디를 형성하면서 구획이 나눠지도록 하는 단계이다.The compartment forming step S50 is a step of pressing the foam sheet with an electric or high-pressure press to form a partition spaced apart by a predetermined distance. More specifically, the compartment forming step (S50) is a step of pressing the compartment with electric or high-pressure presses at positions spaced apart from each other by a predetermined distance in the foam sheet to form compartments.
본 발명은 구획 형성단계(S50)를 추가로 구성함으로써, 상변화물질(120)이 액체 또는 기체로 상변화 되었을 때, 유동적인 액체 및 기체 상태의 상변화물질(120) 이동을 제한하는 역할을 할 수 있다. 그리고 상변화물질(120)의 이동을 제한함으로써 폼시트의 형태를 유지할 수 있으며, 폼시트의 내구성을 유지할 수 있다.The present invention additionally constitutes a compartment forming step (S50), which serves to limit the movement of the liquid and gaseous phase change material (120) when the phase change material (120) is phase changed to liquid or gas can do. The shape of the foam sheet can be maintained by restricting the movement of the
전술한 내용은 후술할 발명의 청구범위를 더욱 잘 이해할 수 있도록 본 발명의 특징과 기술적 장점을 다소 폭넓게 상술하였다. 본 발명이 속하는 기술분야의 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위 그리고 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the claims of the invention to be described below may be better understood. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the appended claims and their equivalents should be construed as being included within the scope of the present invention.
110: 폴리우레탄시트
120: 상변화물질
130: 방액소재110: polyurethane sheet
120: phase change material
130: Water-based material
Claims (5)
상기 혼합용액을 압출하여 폴리우레탄시트를 형성하는 폴리우레탄시트 형성단계;
상기 폴리우레탄시트의 표면에 상변화물질(PCM)을 코팅하여 건조하는 상변화물질 코팅단계; 및
상기 상변화물질의 용융에 의한 누출를 방지하기 위해 상기 상변화물질의 표면에 방액소재를 코팅하는 방액소재 코팅단계;를 포함하는 것을 특징으로 하는 폼시트 제조방법.Preparing a mixed solution by mixing a thermoplastic polyurethane resin (TPU) and a foaming agent to prepare a mixed solution;
A polyurethane sheet forming step of extruding the mixed solution to form a polyurethane sheet;
A phase change material coating step of coating a surface of the polyurethane sheet with a phase change material (PCM) and drying the phase change material; And
And a liquid-pervious material coating step of coating a liquid-pervious material on the surface of the phase-change material to prevent leakage of the phase-change material due to melting.
상기 방액소재 코팅단계 이후에,
상기 폼시트를 전기 또는 고압 프레스로 압착하여 일정간격 이격된 구획을 형성하는 구획 형성단계;를 더 포함하는 것을 특징으로 하는 폼시트 제조방법. The method according to claim 1,
After the liquid-pervious material coating step,
Forming a foam sheet on the foam sheet, and compressing the foam sheet with an electric or high-pressure press to form a space with a predetermined spacing.
상기 혼합용액 제조단계는,
열가소성 폴리우레탄 수지 85 내지 95 중량% 및 발포제 5 내지 15 중량%를 포함하는 것을 특징으로 하는 폼시트 제조방법.The method according to claim 1,
In the mixed solution producing step,
85 to 95% by weight of a thermoplastic polyurethane resin and 5 to 15% by weight of a foaming agent.
상기 열가소성 폴리우레탄 수지는,
폴리올과, 이소시아네이트 화합물 또는 디이소시아네이트 화합물을 포함하는 것을 특징으로 하는 폼시트 제조방법.The method according to claim 1,
In the thermoplastic polyurethane resin,
A method for producing a foam sheet, which comprises a polyol and an isocyanate compound or a diisocyanate compound.
상기 상변화물질은,
n-옥타코산, n-헵타코산, n-헥사코산, n-테트라코산, n-트리코산, n-도코산, n-헤네이코산,n-아이코산, n-노나데칸, n-옥타데칸, n-헵타데칸, n-헥사데칸, n-펜타데칸, n-테트라데칸 및 n-트리데칸 중 적어도 하나를 포함하는 것을 특징으로 하는 폼시트 제조방법.
The method according to claim 1,
The phase-
hexanoic acid, n-hexanoic acid, n-octanoic acid, n-octanoic acid, n-heptanoic acid, n-hexanoic acid, Decane, n-heptadecane, n-hexadecane, n-pentadecane, n-tetradecane, and n-tridecane.
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| KR101308110B1 (en) * | 2013-04-19 | 2013-09-12 | 안창근 | Seat using phase change material and manufacturing method the same |
| KR20160081320A (en) * | 2014-12-31 | 2016-07-08 | 안창근 | Manufacturing method For Phase Change Material Core Seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020050693A1 (en) * | 2018-09-06 | 2020-03-12 | 한림인텍 주식회사 | Pcm-applied polyurethane foam for car headlining, method for manufacturing same, and pcm-applied polyurethane foam-based car headlining |
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