KR101915274B1 - The polyurethane foam composition and Polyurethane foam prepared through the same - Google Patents
The polyurethane foam composition and Polyurethane foam prepared through the same Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
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- C08G18/72—Polyisocyanates or polyisothiocyanates
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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Abstract
Description
본 발명은 폴리우레탄 폼 조성물 및 이를 통해 제조된 폴리우레탄 폼에 관한 것으로, 더욱 자세하게는 라텍스 폼과 유사한 특성을 나타내는 라텍스 라이크 폼(Latex like foam)을 제조할 수 있는 폴리우레탄 폼 조성물 및 이를 통해 제조된 폴리우레탄 폼에 관한 것이다.The present invention relates to a polyurethane foam composition and a polyurethane foam prepared thereby, and more particularly, to a polyurethane foam composition capable of producing a latex like foam exhibiting characteristics similar to those of a latex foam, ≪ / RTI >
폴리우레탄 폼은, 통상 폴리올, 폴리우레탄 폼 제조용 촉매, 발포제 등을 포함하는 레진 프리믹스를 조제하여, 이 레진 프리믹스와 폴리 이소시아네이트를 반응시킴으로써 수득된다.The polyurethane foam is obtained by preparing a resin premix usually containing a polyol, a catalyst for producing a polyurethane foam, a foaming agent and the like, and reacting the resin premix with a polyisocyanate.
폴리우레탄 폼은 우수한 단열 성능, 성형성, 자기 접착성 때문에, 전기 냉장고, 냉동고, 냉동 창고, 건재 패널 등의 단열재, 우수한 쿠션성에 의해, 자동차 등 차량용 시트 쿠션, 시트 백, 헤드 레스트(head rest), 암레스트(arm rest), 인스트루먼트 패널, 도어 트림(door trim), 천장재 등의 내장재, 이륜차용 안장, 항공기, 철도 차량용 시트재, 기타, 가구, 침구, 사무용 의자의 쿠션재 등의 사무용품 등에 폭 넓게 사용되고 있다.BACKGROUND ART Polyurethane foams are widely used as seat cushions, seat backs, head rests for automobiles and the like due to their excellent cushioning properties, heat insulating materials such as electric refrigerators, freezers, freezing warehouses, Arm rests, instrument panels, interior trimings such as door trim and ceiling materials, seat materials for motorcycles, airplanes, railway vehicles, and office supplies such as furniture, bedding, office cushions, .
일반적으로 석유를 기반으로 하는 합성 폴리올이 우레탄 폼 제조를 위해 주로 사용되고 있다. 이러한 기존의 석유 기반의 합성폴리올을 식물유 기반의 천연폴리올로 대체하여 친환경 폴리우레탄을 제조하는 노력들이 많이 이루어졌다. 그러나 식물유를 이용한 우레탄 폼 제조기술은 대부분 경질 우레탄 폼에 대한 것으로, 연질 우레탄 폼 분야에서는 식물유를 활용한 우레탄 폼 제조는 연구가 부진하였다. 일부 대두유 기반 폴리올 만으로 연질 폼 합성에 대한 연구가 있기는 하였으나, 실제 많은양의 closed cell이 발견되었다.Generally, petroleum-based synthetic polyols are mainly used for the production of urethane foams. Efforts have been made to manufacture environmentally friendly polyurethanes by replacing these conventional petroleum-based synthetic polyols with vegetable oil-based natural polyols. However, most of the urethane foam manufacturing technology using vegetable oil is about hard urethane foam, and in the field of soft urethane foam, research on the production of urethane foam using vegetable oil is poor. Although some soybean oil based polyols have been studied for the synthesis of flexible foams, a large amount of closed cells have actually been found.
한편, 연질 폴리우레탄 폼은 open cell 구조로 탄성력이 우수하고, 기계적 강도(신율, 인장강도, 내마모성)가 우수하여 포장 재료 등 다양한 산업 분야에서 활용되고 있다. 특히, 침구류의 쿠션재로 많이 사용되고 있으며, 침구류를 사용하는 목적에 따라 다양한 물성을 갖는 폴리우레탄 폼이 제작되고 있다. 따라서, 폴리우레탄 폼이 목적에 맞는 물성을 갖도록, 최적의 비율을 갖는 폴리우레탄 폼 조성물을 개발하는 것이 이슈화되고 있다.On the other hand, flexible polyurethane foam has an open cell structure and excellent elasticity, and is excellent in mechanical strength (elongation, tensile strength, abrasion resistance) and used in various industrial fields such as packaging materials. Particularly, they are widely used as cushioning materials for bedding, and polyurethane foams having various physical properties according to the purpose of using bedding materials have been produced. Accordingly, it has been an issue to develop a polyurethane foam composition having an optimum ratio so that the polyurethane foam has properties suitable for the purpose.
본 발명이 해결하고자 하는 과제는 상기한 바와 같이 종래 기술을 개선하기 위한 것으로서, 본 발명의 일 측면은 폴리우레탄 폼용 조성물을 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a composition for a polyurethane foam.
본 발명의 다른 측면은 상기 폴리우레탄 폼용 조성물을 통해 제조된 폴리우레탄 폼을 제공함에 있다.Another aspect of the present invention is to provide a polyurethane foam produced through the composition for polyurethane foam.
상기 과제를 이루기 위하여 본 발명의 일 측면은 폴리우레탄 폼용 조성물을 제공한다.According to an aspect of the present invention, there is provided a composition for a polyurethane foam.
상기 폴리우레탄 폼용 조성물은 폴리올 혼합물(X) 및 이소시아네이트 혼합물(Y)을 포함할 수 있다.The composition for polyurethane foam may comprise polyol mixture (X) and isocyanate mixture (Y).
상기 폴리올 혼합물(X)은, 폴리올(A) 및 폴리올 (B)를 함유할 수 있다.The polyol mixture (X) may contain a polyol (A) and a polyol (B).
상기 폴리올 (A)는 평균 수산기가 20 ~ 35 mgKOH/g 및 수평균 분자량이 5500 ~ 7500의 폴리올 중 말단에 옥시에틸렌기를 8 ~ 18% 범위로 포함하는 폴리올일 수 있다.The polyol (A) may be a polyol having an oxyethylene group in the range of 8 to 18% at the end of a polyol having an average hydroxyl value of 20 to 35 mg KOH / g and a number average molecular weight of 5500 to 7500.
상기 폴리올 (B)는 평균 수산기가 40 ~ 60 mgKOH/g 및 수평균 분자량이 3000 ~ 4000의 폴리올 중 말단에 옥시에틸렌기를 5% 이하로 포함하는 폴리올일 수 있다.The polyol (B) may be a polyol having an average hydroxyl value of 40 to 60 mg KOH / g and a polyol having a number average molecular weight of 3000 to 4000 and containing 5% or less of oxyethylene groups at the terminals.
상기 이소시아네이트 혼합물(Y)은 메틸렌 디페닐 디이소시아네이트 (Methylene Diphenyl Diisocyanate, MDI)의 혼합물일 수 있다.The isocyanate mixture (Y) may be a mixture of methylene diphenyl diisocyanate (MDI).
상기 폴리올 혼합물(X)에 실리콘 정포제, 우레탄화 촉매 및 물이 더 포함될 수 있다.The polyol mixture (X) may further contain a silicone foam stabilizer, a urethanation catalyst and water.
상기 폴리올 혼합물(X) 100 질량%를 기준으로, 폴리올(A)가 50 ~ 90질량%일 수 있다.The polyol (A) may be 50 to 90% by mass based on 100% by mass of the polyol mixture (X).
상기 폴리올 혼합물(X) 100 질량%를 기준으로, 폴리올(B)가 10 ~ 50질량%일 수 있다.Based on 100% by mass of the polyol mixture (X), the polyol (B) may be 10 to 50% by mass.
상기 폴리올(A)는 하기 [화학식 1]의 구조를 갖고, a+c+e : b+d+f = 72 ~ 92 : 8 ~ 18 일 수 있다.The polyol (A) has a structure represented by the following formula (1), and a + c + e: b + d + f = 72-92: 8-18.
[화학식 1][Chemical Formula 1]
상기 폴리올(B)는 하기 [화학식 2]의 구조를 갖고, g+i+k : h+j+l = 95 ~ 99 : 1 ~ 5 일 수 있다.The polyol (B) has a structure represented by the following formula (2), and g + i + k: h + j + 1 = 95 to 99: 1 to 5.
[화학식 2](2)
상기 이소시아네이트 혼합물(Y)은 MDI(A), MDI(B), MDI(C) 및 MDI(D)를 함유할 수 있다.The isocyanate mixture (Y) may contain MDI (A), MDI (B), MDI (C) and MDI (D).
상기 MDI(A)는 Diphenyl methane diisocyanate일 수 있다.The MDI (A) may be diphenyl methane diisocyanate.
상기 MDI(B)는 isocyanic acid polymethylenepolyphenylene ester일 수 있다.The MDI (B) may be an isocyanic acid polymethylenepolyphenylene ester.
상기 MDI(C)는 1-isocyanato-2-[(4- isocyanatophenyl)methyl) benzene일 수 있다.The MDI (C) may be 1-isocyanato-2 - [(4-isocyanatophenyl) methyl) benzene.
상기 MDI(D)는 isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol(3:1)일 수 있다.The MDI (D) may be isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3: 1).
상기 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(A)가 50 ~ 60질량%일 수 있다.The MDI (A) may be 50 to 60% by mass based on 100% by mass of the isocyanate mixture (Y).
상기 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(B)가 20 ~ 30질량%일 수 있다.Based on 100 mass% of the isocyanate mixture (Y), the MDI (B) may be 20 to 30 mass%.
상기 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(C)가 10 ~ 20질량%일 수 있다.Based on 100 mass% of the isocyanate mixture (Y), the MDI (C) may be 10 to 20 mass%.
상기 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(D)가 5 ~ 10질량%일 수 있다.Based on 100 mass% of the isocyanate mixture (Y), 5 to 10 mass% of MDI (D).
상기 폴리우레탄 폼용 조성물 100 질량%를 기준으로, 이소시아네이트 혼합물(Y)이 40 ~ 80 질량%일 수 있다.The isocyanate mixture (Y) may be 40 to 80 mass% based on 100 mass% of the polyurethane foam composition.
상기 과제를 이루기 위하여 본 발명의 다른 측면은 폴리우레탄 폼을 제공한다.According to another aspect of the present invention, there is provided a polyurethane foam.
상기 폴리우레탄 폼은 상술한 폴리우레탄 폼용 조성물로 제조될 수 있다.The polyurethane foam may be made of the composition for polyurethane foam described above.
상기 폴리우레탄 폼은 유아용 침구류에 사용될 수 있다.The polyurethane foam may be used in baby bedding.
상기 폴리우레탄 폼의 탄성은 50 ~ 60 (Ball Rebound, %)일 수 있다.The elasticity of the polyurethane foam may be 50 to 60 (Ball Rebound,%).
본 발명에 따르면, 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 통해 폴리우레탄 폼을 제조함으로써, 유아용 침구류로 사용하기 적합한 폴리우레탄 폼을 제조할 수 있다.According to the present invention, a polyurethane foam suitable for use as an infant bed can be produced by preparing a polyurethane foam through a composition for a polyurethane foam having an optimum ratio.
또한, 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 통해 폴리우레탄 폼을 제조함으로써, 자기소화성을 가지는 폴리우레탄 폼을 제조할 수 있다.In addition, a polyurethane foam having self-extinguishing properties can be produced by preparing a polyurethane foam through a composition for a polyurethane foam having an optimum ratio.
또한, 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 통해 폴리우레탄 폼을 제조함으로써, 중금속 함량이 검출한계 미만인 폴리우레탄 폼을 제조할 수 있다.In addition, polyurethane foams having a heavy metal content lower than the detection limit can be produced by preparing polyurethane foams through a polyurethane foam composition having an optimum ratio.
또한, 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 통해 폴리우레탄 폼을 제조함으로써, 88% 이상의 원적외선 방사율을 가지는 폴리우레탄 폼을 제조할 수 있다.In addition, a polyurethane foam having a far infrared ray emissivity of 88% or more can be produced by preparing a polyurethane foam through a polyurethane foam composition having an optimum ratio.
또한, 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 통해 폴리우레탄 폼을 제조함으로써, 항균성이 뛰어난 폴리우레탄 폼을 제조할 수 있다.In addition, a polyurethane foam excellent in antibacterial property can be produced by preparing a polyurethane foam through a polyurethane foam composition having an optimum ratio.
본 발명의 기술적 효과들은 이상에서 언급한 것들로 제한되지 않으며, 언급되지 않은 또 다른 기술적 효과들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The technical effects of the present invention are not limited to those mentioned above, and other technical effects not mentioned can be clearly understood by those skilled in the art from the following description.
도 1은 바람직한 본 발명의 폴리우레탄 폼의 제조공정도중 혼합공정을 도시한 도면이다.
도 2은 바람직한 본 발명의 폴리우레탄 폼의 제조공정도중 발포 및 성형공정을 도시한 도면이다.
도 3은 바람직한 본 발명의 폴리우레탄 폼의 이미지이다.
도 4는 바람직한 본 발명의 폴리우레탄 폼의 항균도 측정 결과를 나타낸 이미지이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a mixing process in a preferred process for producing a polyurethane foam of the present invention. FIG.
FIG. 2 is a view showing a foaming and molding process in the process of manufacturing the preferred polyurethane foam of the present invention.
Figure 3 is an image of a preferred polyurethane foam of the present invention.
4 is an image showing the results of measurement of the antibacterial degree of the polyurethane foam of the present invention.
이하, 첨부된 도면을 참고하여 본 발명에 의한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명이 여러 가지 수정 및 변형을 허용하면서도, 그 특정 실시예들이 도면들로 예시되어 나타내어지며, 이하에서 상세히 설명될 것이다. 그러나 본 발명을 개시된 특별한 형태로 한정하려는 의도는 아니며, 오히려 본 발명은 청구항들에 의해 정의된 본 발명의 사상과 합치되는 모든 수정, 균등 및 대용을 포함한다.While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. Rather, the intention is not to limit the invention to the particular forms disclosed, but rather, the invention includes all modifications, equivalents and substitutions that are consistent with the spirit of the invention as defined by the claims.
층, 영역 또는 기판과 같은 요소가 다른 구성요소 "상(on)"에 존재하는 것으로 언급될 때, 이것은 직접적으로 다른 요소 상에 존재하거나 또는 그 사이에 중간 요소가 존재할 수도 있다는 것을 이해할 수 있을 것이다.It will be appreciated that when an element such as a layer, region or substrate is referred to as being present on another element "on," it may be directly on the other element or there may be an intermediate element in between .
비록 제1, 제2 등의 용어가 여러 가지 요소들, 성분들, 영역들, 층들 및/또는 지역들을 설명하기 위해 사용될 수 있지만, 이러한 요소들, 성분들, 영역들, 층들 및/또는 지역들은 이러한 용어에 의해 한정되어서는 안 된다는 것을 이해할 것이다.Although the terms first, second, etc. may be used to describe various elements, components, regions, layers and / or regions, such elements, components, regions, layers and / And should not be limited by these terms.
도 1은 바람직한 본 발명의 폴리우레탄 폼의 제조공정도중 혼합공정을 도시한 도면이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a mixing process in a preferred process for producing a polyurethane foam of the present invention. FIG.
도 1을 참조하면, 폴리우레탄 폼용 조성물을 제조하기 위해 폴리올과 MDI를 혼합하는 단계가 수행되는 것을 알 수 있다.Referring to FIG. 1, it can be seen that the step of mixing polyol and MDI is carried out to prepare a composition for polyurethane foam.
바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼용 조성물은 폴리올 혼합물(X) 및 이소시아네이트 혼합물(Y)을 포함하며, 상기 폴리올 혼합물(X)은, 폴리올(A) 및 폴리올 (B)를 함유한다.A preferred polyurethane foam composition according to an embodiment of the present invention comprises a polyol mixture (X) and an isocyanate mixture (Y), wherein the polyol mixture (X) contains a polyol (A) and a polyol (B).
바람직한 본 발명의 일 실시예에 따른 폴리올(A)는 평균 수산기가 20 ~ 35 mgKOH/g 및 수평균 분자량이 5500 ~ 7500의 폴리올 중 말단에 옥시에틸렌기를 8 ~ 18% 범위로 포함하는 폴리올이고, 하기 [화학식 1]의 구조이다.The polyol (A) according to an embodiment of the present invention is a polyol having an average hydroxyl value of 20 to 35 mg KOH / g and a number average molecular weight of 5500 to 7500 and containing oxyethylene groups in the range of 8 to 18% Is the structure of the following formula (1).
[화학식 1][Chemical Formula 1]
상기 [화학식 1]에서 a+c+e : b+d+f = 82 ~ 92 : 8 ~ 18 이다.A + c + e: b + d + f = 82 to 92: 8 to 18 in the above formula (1).
바람직한 본 발명의 일 실시예에 따른 폴리올(B)는 평균 수산기가 40 ~ 60 mgKOH/g 및 수평균 분자량이 3000 ~ 4000의 폴리올 중 말단에 옥시에틸렌기를 5% 이하로 포함하는 폴리올이고, 하기 [화학식 2]의 구조이다.The polyol (B) according to an embodiment of the present invention is a polyol having an average hydroxyl value of 40 to 60 mgKOH / g and a number average molecular weight of 3000 to 4000, (2).
[화학식 2](2)
상기 [화학식 2]에서 +i+k : h+j+l = 95 ~ 99 : 1 ~ 5 이다.+ I + k: h + j + 1 = 95 to 99: 1 to 5 in the above formula (2).
바람직한 본 발명의 일 실시예에 따른 폴리올 혼합물(X)은 상대적으로 고분자 폴리올인 상기 폴리올(A)와 상대적으로 저분자 폴리올인 상기 폴리올(B)의 최적의 조합 범위로 혼합되며, 최적의 조건으로 혼합되어 발포되었을 때, 폴리우레탄 폼은 라텍스 폼과 유사한 부드러운 표면과 탄성을 나타낼 수 있다.The polyol mixture (X) according to one preferred embodiment of the present invention is mixed with an optimal combination range of the polyol (A) which is a relatively high molecular polyol and the polyol (B) which is a relatively low molecular polyol, When foamed, the polyurethane foam can exhibit a soft surface and elasticity similar to latex foam.
바람직한 본 발명의 일 실시예에 따른 폴리올 혼합물(X)은 폴리올 혼합물(X) 100 질량%를 기준으로, 폴리올(A) 50 ~ 90질량% 및 폴리올(B) 10 ~ 50질량% 포함할 수 있다. 더욱 바람직하게는 폴리올(A) 75 ~ 80질량% 및 폴리올(B) 20 ~ 25질량% 포함할 수 있다.The polyol mixture (X) according to one preferred embodiment of the present invention may contain 50 to 90 mass% of the polyol (A) and 10 to 50 mass% of the polyol (B) based on 100 mass% of the polyol mixture . More preferably 75 to 80% by mass of the polyol (A) and 20 to 25% by mass of the polyol (B).
한편, 바람직한 본 발명의 일 실시예에 따른 폴리올 혼합물(X) 내에는 디이소시아네이트 (Methylene Diphenyl Diisocyanate, 이하 ‘MDI’로 표기)와 조합되어 발포되고 폼을 형성할 수 있도록 실리콘 정포제, 우레탄화 촉매 및 물이 포함될 수 있다.In the meantime, the polyol mixture (X) according to an embodiment of the present invention is combined with a diisocyanate (denoted as MDI) to form a foam, And water.
상기 실리콘 정포제, 우레탄화 촉매 및 물은 본 발명의 목적에 벗어나지 않는 것이라면 제한없이 사용할 수 있다.The silicone foam stabilizer, urethanization catalyst and water can be used without limitation as long as they do not deviate from the object of the present invention.
본 발명의 이소시아네이트 혼합물(Y)은 메틸렌 디페닐 디이소시아네이트 (Methylene Diphenyl Diisocyanate, MDI)의 혼합물이다. The isocyanate mixture (Y) of the present invention is a mixture of methylene diphenyl diisocyanate (MDI).
이소시아네이트 혼합물(Y)로서 메틸렌 디페닐 디이소시아네이트 (Methylene Diphenyl Diisocyanate, MDI)의 혼합물을 사용하여 폴리우레탄 폼을 제조하였을 때, 라텍스 폼과 유사한 부드러운 표면과 탄성을 나타낼 수 있다. When a polyurethane foam is prepared using a mixture of methylene diphenyl diisocyanate (MDI) as an isocyanate mixture (Y), a soft surface similar to a latex foam and elasticity may be exhibited.
반면, 톨릴렌디이소시아네이트(TDI), 프탈렌디이소시아네이트(NDI), 자일릴렌디이소시아네이트 (XDI), 이소포론디이소시아네이트 (IPDI), 헥사메틸렌디이소시아네이트 (HMDI), 및 이들 변성체로 이루어 군에서 선택된 적어도 하나의 이소시아네이트와 상술한 폴리올 혼합물(X)을 조합하여 발포할 경우, 표면이 거친 폴리우레탄 폼이 제조되며, 경제적인 면에서도 부적합하다.On the other hand, at least one selected from the group consisting of tolylene diisocyanate (TDI), phthalene diisocyanate (NDI), xylylene diisocyanate (XDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HMDI) Isocyanate and the above-mentioned polyol mixture (X) are foamed together, a rough polyurethane foam is produced, which is also unsuitable in terms of economy.
따라서, 라텍스 폼과 유사한 폴리우레탄 폼을 제작하기 위한 이소시아네이트 혼합물(Y)은 메틸렌 디페닐 디이소시아네이트 (Methylene Diphenyl Diisocyanate, MDI)의 혼합물이다. Thus, the isocyanate mixture (Y) for making a polyurethane foam similar to latex foam is a mixture of methylene diphenyl diisocyanate (MDI).
더욱 상세하게, 바람직한 본 발명의 일 실시예에 따른 이소시아네이트 혼합물(Y)은 MDI(A), MDI(B), MDI(C) 및 MDI(D)를 함유한다.More particularly, the preferred isocyanate mixture (Y) according to one embodiment of the invention contains MDI (A), MDI (B), MDI (C) and MDI (D).
상기 MDI(A)는 Diphenyl methane diisocyanate 이고, 상기 MDI(B)는 isocyanic acid polymethylenepolyphenylene ester이며, 상기 MDI(C)는 1-isocyanato-2-[(4-isocyanatophenyl)methyl) benzene이고, 상기 MDI(D)는isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol(3:1)이다.Wherein the MDI (A) is diphenyl methane diisocyanate, the MDI (B) is isocyanic acid polymethylenepolyphenylene ester, the MDI (C) is 1-isocyanato-2- (4-isocyanatophenyl) ) Is isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3: 1).
또한, 라텍스 폼과 유사한 특성을 갖는 폴리우레탄 폼을 제작하기 위해서, 이소시아네이트 혼합물(Y)은 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(A) 50 ~ 60질량%, MDI(B) 20 ~ 30질량%, MDI(C) 10 ~ 20질량% 및 MDI(D) 5 ~ 10질량% 포함할 수 있다.In order to prepare a polyurethane foam having properties similar to those of latex foam, the isocyanate mixture (Y) contains 50 to 60% by mass of MDI (A), 20 to 60% by mass of MDI (B) 20 To 30 mass%, MDI (C) 10 to 20 mass%, and MDI (D) 5 to 10 mass%.
마지막으로, 라텍스 폼과 유사한 특성 발현과 유아용 침구류에서 원하는 경도를 발현하기 위해서는 일정한 범위의 발포 액비가 특정지어 지며, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼용 조성물은, 폴리우레탄 폼용 조성물 100 질량%를 기준으로, 이소시아네이트 혼합물(Y) 40 ~ 80 질량%를 사용한다. 이소시아네이트 혼합물(Y)을 40질량% 미만 사용하거나, 80 질량% 이상 사용할 경우, 폴리우레탄 폼 수축, 콜랩스(Collapse) 발생 등의 문제로 폼이 형성되지 않거나 경도가 과도히 낮아 사용하기에 부적합한 폼이 제조된다.Lastly, in order to exhibit characteristics similar to latex foam and to exhibit desired hardness in baby bedding, a certain range of foaming liquid is prepared. The composition for a polyurethane foam according to an embodiment of the present invention preferably comprises a polyurethane foam composition 100 40 to 80 mass% of the isocyanate mixture (Y) is used based on the mass%. When the isocyanate mixture (Y) is used in an amount of less than 40 mass% or more than 80 mass%, foams are not formed due to the shrinkage of polyurethane foam, collapse, or the like, .
따라서, 본 발명의 바람직한 일 실시예에 따른 조성비를 사용함으로써, 본 발명의 목적인 유아용 침구류에 사용하기 적합한 폴리우레탄 폼을 제조할 수 있다. Therefore, by using the composition ratio according to one preferred embodiment of the present invention, a polyurethane foam suitable for use in infant bedding for the purpose of the present invention can be produced.
도 2은 바람직한 본 발명의 폴리우레탄 폼의 제조공정도중 발포 및 성형공정을 도시한 도면이다.FIG. 2 is a view showing a foaming and molding process in the process of manufacturing the preferred polyurethane foam of the present invention.
도 2를 참조하면, 폴리우레탄 폼의 원료를 발포금형에 투입한 후, 발포, 숙성 및 성형과정을 거쳐 본 발명의 바람직한 일 실시에에 따른 폴리우레탄 폼이 제조되는 것을 알 수 있으며, 상기 폴리우레탄 폼의 원료는 상술한 폴리우레탄 폼용 조성물이다.Referring to FIG. 2, it can be seen that a polyurethane foam according to one preferred embodiment of the present invention is produced after the raw material of a polyurethane foam is put into a foaming mold, followed by foaming, aging and molding, The raw material of the foam is the above-mentioned polyurethane foam composition.
도 3은 바람직한 본 발명의 폴리우레탄 폼의 이미지이다.Figure 3 is an image of a preferred polyurethane foam of the present invention.
도 3을 참조하면, 상술한 제조공정을 통해 폴리우레탄 폼이 제조되었으며, 본 출원인은 제조된 폴리우레탄 폼으로 다양한 실험을 실시하여, 본 발명의 목적인 유아용 침구류에 사용하기 적합한 폴리우레탄 폼인지 확인하였다.Referring to FIG. 3, a polyurethane foam was produced through the above-described manufacturing process. Applicants have conducted various experiments with the polyurethane foam to confirm whether it is a polyurethane foam suitable for use in infant bedding, Respectively.
먼저, 제조된 폴리우레탄 폼의 연소성 테스트를 실시하였으며, 그 결과를 아래의 [표 1]에 나타냈다.First, the prepared polyurethane foam was subjected to a flammability test, and the results are shown in Table 1 below.
연소성 테스트는 폴리우레탄 폼을 16 내지 26℃의 온도, 50 내지 60% 의 습도에서 24시간 이상 방치한 후 실시하였다.The combustibility test was carried out after leaving the polyurethane foam at a temperature of 16 to 26 DEG C and a humidity of 50 to 60% for 24 hours or more.
상기 표 1을 참조하면, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼을 사용하여 총 5번의 연소성 테스트를 실시하였으며, 그 결과 자기소화성(SE)을 가지는 폴리우레탄 폼인 것을 알 수 있다. 따라서, 본 발명의 바람직한 일 실시예에 따른 폴리우레탄 폼은 침구류에 사용하기에 적합한 폴리우레탄 폼임을 알 수 있다.Referring to Table 1, a total of five flammability tests were conducted using the polyurethane foam according to one preferred embodiment of the present invention. As a result, it can be seen that the polyurethane foam has a self-extinguishing property (SE). Accordingly, it can be seen that the polyurethane foam according to one preferred embodiment of the present invention is a polyurethane foam suitable for use in bedding.
또한, 제조된 폴리우레탄 폼의 중금속 함량을 측정하였으며, 그 결과를 아래의 [표 2]에 나타냈다. The heavy metal content of the polyurethane foam thus prepared was measured, and the results are shown in [Table 2] below.
(검출안됨 = 검출한계 미만)(Not detected = less than detection limit)
중금속 함량 측정은 한국 표준인 KS C IEC 62321: 2009를 통해 측정하였다.The content of heavy metals was measured by the Korean standard IEC 62321: 2009.
상기 표 2을 참조하면, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼은 카드뮴 (Cd), 납 (Pb), 수은 (Hg) 및 크롬 VI (Cr VI) 모두 검출한계 미만으로 측정되어 검출되지 않았다. 따라서, 본 발명의 바람직한 일 실시예에 따른 폴리우레탄 폼은 침구류에 사용하기에 적합한 폴리우레탄 폼임을 알 수 있다.Referring to Table 2, the polyurethane foam according to one preferred embodiment of the present invention is characterized in that cadmium (Cd), lead (Pb), mercury (Hg), and chromium VI (Cr VI) I did. Accordingly, it can be seen that the polyurethane foam according to one preferred embodiment of the present invention is a polyurethane foam suitable for use in bedding.
또한, 제조된 폴리우레탄 폼의 원적외선 방사율을 측정하였으며, 그 결과를 아래의 [표 3]에 나타냈다.The far-infrared emissivity of the prepared polyurethane foam was measured, and the results are shown in Table 3 below.
원적외선 방사율 측정은 40℃의 온도에서, 5 ~ 20㎛의 파장을 측정하였으며, 본 결과는 FT-IR 스펙트럼을 이용한 BLACK BODY 대비 측정결과이다.The far-infrared emissivity was measured at a wavelength of 5 to 20 μm at a temperature of 40 ° C. The result is a measurement of a black body using FT-IR spectrum.
상기 표 3을 참조하면, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼은 0.888의 비교적 높은 원적외선 방사율을 가지는 것을 알 수 있다. 따라서, 본 발명의 바람직한 일 실시예에 따른 폴리우레탄 폼을 침구류에 사용하였을 경우, 원적외선이 신체에 영향을 끼치는 다양한 효과를 얻을 수 있다는 것을 알 수 있다.Referring to Table 3, it can be seen that the polyurethane foam according to an exemplary embodiment of the present invention has a relatively high far infrared ray emissivity of 0.888. Therefore, when the polyurethane foam according to the preferred embodiment of the present invention is used for bedding, it can be seen that various effects that far-infrared rays have on the body can be obtained.
도 4는 바람직한 본 발명의 폴리우레탄 폼의 항균도 측정 결과를 나타낸 이미지이다.4 is an image showing the results of measurement of the antibacterial degree of the polyurethane foam of the present invention.
항균도 측정은, 균액흡수법 및 평판배양법에 의해 실시하였으며, 균주 1은 staphylococcus aureus ATCC 6538 (황색포도상구균)이고, 균주 2는 Klebsiella pneumoniae ATCC 4352 (폐렴간균)이다.The antimicrobial activity was determined by the method of bacterium absorption and plate culture. Strain 1 was staphylococcus aureus ATCC 6538 (Staphylococcus aureus), and strain 2 was Klebsiella pneumoniae ATCC 4352 (pneumoniae).
도 4 (a)는 면100%의 대조시편에 균주 1을 배양하고 18시간 후의 이미지이며, 도 4 (b)는 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼에 균주 1을 배양하고 18시간 후의 이미지이다. Fig. 4 (a) is an image after 18 hours of culturing the strain 1 on a 100% cotton sample, Fig. 4 (b) is a photograph showing that the strain 1 was cultured on the polyurethane foam according to the preferred embodiment of the present invention, It is a later image.
또한, 도 4 (c)는 면100%의 대조시편에 균주 2를 배양하고 18시간 후의 이미지이며, 도 4 (d)는 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼에 균주 2를 배양하고 18시간 후의 이미지이다. Fig. 4 (c) is an image after 18 hours of culturing the strain 2 on the 100% cotton control specimen. Fig. 4 (d) shows the result of culturing the strain 2 on the polyurethane foam according to one preferred embodiment of the present invention It is an image after 18 hours.
제조된 폴리우레탄 폼 및 대조시편의 항균도 측정의 결과를 아래의 [표 4]에 나타냈다.The results of the antimicrobial activity measurement of the prepared polyurethane foam and the control sample are shown in Table 4 below.
상기 도 4 및 표 4를 참조하면, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼은 95% 이상의 항균효과가 있는 것을 알 수 있으며, 침구류에 사용시 신체에서 배출되는 땀 등의 노폐물에 의한 균의 번식이 억제된다는 것을 알 수 있다.Referring to FIGS. 4 and 4, the polyurethane foam according to one embodiment of the present invention has an antibacterial effect of 95% or more. It can be seen that the propagation of < RTI ID = 0.0 >
또한, 제조된 폴리우레탄 폼의 압축영구줄음율, 반복영구압축줄음율 및 탄성을 측정하였으며, 그 결과를 아래의 [표 5]에 나타냈다.In addition, the compression set of the polyurethane foam prepared, the permanent compression set ratio and the elasticity were measured, and the results are shown in Table 5 below.
압축영구줄음율의 측정은 69 내지 71℃의 온도에서 22시간동안 50% 압축 조건으로 실행하였으며, 반복영구압축줄음율은 50% 압축, 80000회의 실험조건으로 실행하였다.The measurement of the compression set length was carried out under the conditions of 50% compression for 22 hours at a temperature of 69 to 71 캜, and the cyclic compression set was performed under the conditions of 50,000 compression and 80000 times of compression.
상기 표 5를 참조하면, 바람직한 본 발명의 일 실시예에 따른 폴리우레탄 폼은 5.2%의 압축영구줄음율 및 1.2%의 반복영구압축줄음율을 갖는 것을 알 수 있다. 영구줄음율의 수치가 낮은 제품일수록 탄력이 뛰어난 제품이며, 탄력이 뛰어난 폴리우레탄 폼이 제조되었다는 것을 알 수 있다. 실제로 제조된 폴리우레탄 폼의 탄성은 50~60 (Ball Rebound, %) 범위로 발현되었다.Referring to Table 5, it can be seen that the polyurethane foam according to an exemplary embodiment of the present invention has a compression set ratio of 5.2% and a cyclic compression ratio of 1.2%. It can be seen that the lower the rate of permanent banding, the better the elasticity and the more flexible polyurethane foam. The elasticity of the polyurethane foam actually produced was in the range of 50 to 60 (Ball Rebound,%).
또한, 본 발명의 일 실시예에 따른 폴리우레탄 폼의 겉보기밀도는 59.9kg/m2 이고, 경도는 150N(15.8kgf)으로 측정되었다.In addition, the apparent density of the polyurethane foam according to one embodiment of the present invention was 59.9 kg / m 2, and the hardness was measured to be 150 N (15.8 kgf).
본 출원인은 10-2016-0140430호의 ‘역류방지용 쿠션블럭과 이것을 이용한 유아용 베드’에 적용 가능한 폴리우레탄 폼을 제작하기 위해 최적의 비율을 갖는 폴리우레탄 폼용 조성물을 제조하였고, 이를 통해 폴리우레탄 폼을 제조함으로써, 유아용 침구류로 사용하기 적합한 폴리우레탄 폼을 얻었다.The present applicant has prepared a composition for a polyurethane foam having an optimum ratio for producing a polyurethane foam applicable to a backflow preventing cushion block and a baby bed using the same, in which the polyurethane foam is manufactured Thereby obtaining a polyurethane foam suitable for use as a bedding for infants.
다만, 본 발명의 폴리우레탄 폼 조성물로 제작된 폴리우레탄 폼의 적용은 유아용 침구류에 제한되지 않으며, 자동차 등 차량용 시트 쿠션, 시트 백, 헤드 레스트(head rest), 암레스트(arm rest), 인스트루먼트 패널, 도어 트림(door trim), 천장재 등의 내장재, 이륜차용 안장, 항공기, 철도 차량용 시트재, 기타, 가구, 침구, 사무용 의자의 쿠션재 등의 사무용품 등에 폭넓게 적용될 수 있다.However, the application of the polyurethane foam made of the polyurethane foam composition of the present invention is not limited to bedding for infants, and it can be applied to a seat cushion, a seat back, a head rest, an arm rest, Panels, door trim, interior materials such as ceiling materials, saddles for motorcycles, airplanes, seat materials for railway cars, office furniture such as furniture, bedding, and office cushions for office chairs.
Claims (14)
상기 폴리올 혼합물(X)은, 하기 폴리올(A) 및 하기 폴리올 (B)를 함유하고,
상기 이소시아네이트 혼합물(Y)은 하기 MDI(A), 하기 MDI(B), 하기 MDI(C) 및 하기 MDI(D)를 함유하되, 상기 이소시아네이트 혼합물(Y) 100 질량%를 기준으로, MDI(A) 50 ~ 60질량%, MDI(B) 20 ~ 30질량%, MDI(C) 10 ~ 20질량% 및 MDI(D) 5 ~ 10질량%를 포함하는 것을 특징으로 하는 폴리우레탄 폼용 조성물.
폴리올 (A) : 평균 수산기가 20 ~ 35 mgKOH/g 및 수평균 분자량이 5500 ~ 7500의 폴리올 중 말단에 옥시에틸렌기를 8 ~ 18% 범위로 포함하는 폴리올
폴리올 (B) : 평균 수산기가 40 ~ 60 mgKOH/g 및 수평균 분자량이 3000 ~ 4000의 폴리올 중 말단에 옥시에틸렌기를 5% 이하로 포함하는 폴리올
MDI(A) : Diphenyl methane diisocyanate
MDI(B) : isocyanic acid polymethylenepolyphenylene ester
MDI(C) : 1-isocyanato-2-[(4- isocyanatophenyl)methyl) benzene
MDI(D) : isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol(3:1)1. A polyurethane foam composition for the production of polyurethane foam, comprising a polyol mixture (X) and an isocyanate mixture (Y)
The polyol mixture (X) contains the following polyol (A) and the following polyol (B)
Wherein the isocyanate mixture (Y) contains MDI (A), MDI (B), MDI (C) and MDI ), 50 to 60 mass% of MDI (B), 20 to 30 mass% of MDI (B), 10 to 20 mass% of MDI (C) and 5 to 10 mass% of MDI (D).
Polyol (A): A polyol having an average hydroxyl value of 20 to 35 mg KOH / g and a number average molecular weight of 5500 to 7500, a polyol having an oxyethylene group in the range of 8 to 18%
Polyol (B): A polyol having an average hydroxyl value of 40 to 60 mgKOH / g and a number average molecular weight of 3000 to 4000 and a polyol containing 5% or less of an oxyethylene group at the terminal
MDI (A): Diphenyl methane diisocyanate
MDI (B): isocyanic acid polymethylenepolyphenylene ester
MDI (C): 1-isocyanato-2 - [(4-isocyanatophenyl) methyl) benzene
MDI (D): isocyanic acid polymethylenepolyphenylene ester polymer with methyloxirane polymer with oxirane ether with 1,2,3-propanetriol (3: 1)
상기 폴리올 혼합물(X)에 실리콘 정포제, 우레탄화 촉매 및 물이 더 포함되어 있는 것을 특징으로 하는 폴리우레탄 폼용 조성물.The method according to claim 1,
Wherein the polyol mixture (X) further comprises a silicone foam stabilizer, an urethanation catalyst, and water.
상기 폴리올 혼합물(X) 100 질량%를 기준으로, 폴리올(A)가 50 ~ 90질량%인 것을 특징으로 하는 폴리우레탄 폼용 조성물.The method according to claim 1,
Wherein the polyol (A) is 50 to 90% by mass based on 100% by mass of the polyol mixture (X).
상기 폴리올 혼합물(X) 100 질량%를 기준으로, 폴리올(B)가 10 ~ 50질량%인 것을 특징으로 하는 폴리우레탄 폼용 조성물.The method according to claim 1,
Wherein the polyol (B) is contained in an amount of 10 to 50 mass% based on 100 mass% of the polyol mixture (X).
상기 폴리올(A)는 하기 [화학식 1]의 구조를 갖고, a+c+e : b+d+f = 82 ~ 92 : 8 ~ 18 인 것을 특징으로 하는 폴리우레탄 폼용 조성물.
[화학식 1]
The method according to claim 1,
Wherein the polyol (A) has a structure represented by the following formula (1), and a + c + e: b + d + f = 82-92: 8-18.
[Chemical Formula 1]
상기 폴리올(B)는 하기 [화학식 2]의 구조를 갖고, g+i+k : h+j+l = 95 ~ 99 : 1 ~ 5 인 것을 특징으로 하는 폴리우레탄 폼용 조성물.
[화학식 2]
The method according to claim 1,
Wherein the polyol (B) has a structure represented by the following formula (2), and g + i + k: h + j + 1 = 95 to 99: 1 to 5.
(2)
상기 폴리우레탄 폼용 조성물 100 질량%를 기준으로, 이소시아네이트 혼합물(Y)이 40 ~ 80 질량%인 것을 특징으로 하는 폴리우레탄 폼용 조성물.The method according to claim 1,
Wherein the isocyanate mixture (Y) is 40 to 80% by mass based on 100% by mass of the polyurethane foam composition.
상기 폴리우레탄 폼은 유아용 침구류에 사용되는 것을 특징으로 하는 폴리우레탄 폼.A polyurethane foam produced from the composition for polyurethane foam according to any one of claims 1 to 6 and 12,
Wherein the polyurethane foam is used in infant bedding.
상기 폴리우레탄 폼의 탄성은 50 ~ 60 (Ball Rebound, %) 인 것을 특징으로 하는 폴리우레탄 폼.
14. The method of claim 13,
Wherein the elasticity of the polyurethane foam is 50 to 60 (Ball Rebound,%).
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JP3667725B2 (en) | 2001-09-28 | 2005-07-06 | 三洋化成工業株式会社 | Flexible polyurethane foam for headrest |
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