KR20080062455A - A semi-rigid sprayable polyurethane foam composition - Google Patents
A semi-rigid sprayable polyurethane foam composition Download PDFInfo
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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Abstract
Description
본 발명은 반경질 뿜칠용 폴리우레탄 발포체용 조성물에 관한 것으로, 더욱 상세하게는 발포성, 발포안정성 및 저장안정성이 뛰어나며, 반경질(semi-rigid)의 성질을 가지기 때문에 욕조, 층간소음재, 진동제거를 위한 제진제, 바닥완충제를 적용하기에 적합하며, 뿜칠 작업이 가능하기 때문에 생산성 및 경제성이 좋은 장점이 있는 반경질 뿜칠용 폴리우레탄 발포체용 조성물에 관한 것이다.The present invention relates to a semi-pushing polyurethane foam composition, and more particularly, excellent foamability, foam stability and storage stability, semi-rigid properties of the bathtub, interlayer noise, vibration removal The present invention relates to a composition for semi-rigid polyurethane foam having a good productivity and economy because it is suitable for applying a vibration damping agent and a floor buffer for the present invention.
폴리우레탄 발포체는 사용용도에 따라서 건축물의 단열재, 냉장고 등의 가전제품의 중간 내장재, 자동차 시트 등 다양한 분야에 사용되며, 기존의 폴리우레탄 발포체는 주로 경질 우레탄이 사용되고 있다. Polyurethane foam is used in various fields such as insulation of buildings, intermediate interior materials of home appliances such as refrigerators, automobile seats, etc., and conventional polyurethane foam is mainly used for rigid urethane.
또한 합성수지 발포체를 사용하는 방법은 크게 두 가지로 대별될 수 있다. 첫째, 일정한 크기로 가공 및 상품화되어 있는 폴리스타일렌폼(일명:스치로폼)이나 폴리우레탄 보드를 사용하는 것으로, 작업성이 떨어지고 표면상태에 따른 조건 등으로 가공성이 상대적으로 열악한 결과를 보이는 단점이 있다. 그러나, 상품화된 제품을 사용하기 때문에 작업환경이 우수한 장점도 있다. 둘째, 스프레이 발포기 를 사용하여 현장에서 폴리우레탄발포를 실시하는 것으로 주로 농축산물 저장소 저온창고, 냉동창고 등에 이용이 되고 있다. 스프레이 발포는 작업성이 빠르며 액상의 레진프리믹스와 이소시아네이트를 사용하기 때문에 표면상태 굴곡에 관계없이 일정한 형태로 작업을 할 수 있다는 장점이 있기 때문에 최근 스프레이 발포기를 이용한 뿜칠방법이 각광을 받고 있으며, 특히 기존에 FRP가 사용된 욕조, 층간소음재, 진동제거를 위한 제진제, 바닥완충제 등에 대하여 반경질의 폴리우레탄에 대한 수요와 함께 뿜칠작업이 가능한 반경질 뿜칠용 폴리우레탄 발포체에 대한 요구가 끊임없이 대두되고 있다.In addition, the method using the synthetic resin foam can be largely divided into two. First, the use of polystyrene foam (aka: Styrofoam) or polyurethane board processed and commercialized to a certain size has a disadvantage in that workability is poor and workability is relatively poor due to surface conditions. However, there is an advantage in the work environment because it uses a commercialized product. Second, polyurethane foaming is carried out on the spot using spray foaming machines. It is mainly used for low temperature warehouses and freezers for agricultural products. Spray foaming has a high workability, and since it uses liquid resin premix and isocyanate, it has the advantage of being able to work in a certain form regardless of surface condition bending. With the demand for semi-hard polyurethanes, there is a constant demand for semi-foamed polyurethane foams that can be sprayed with the use of FRP-based bathtubs, interlayer noise absorbers, vibration dampers, floor buffers, etc. .
상기와 같은 종래기술의 문제점을 해결하고자, 본 발명은 발포성, 발포안정성 및 저장안정성이 뛰어나며, 반경질(semi-rigid)의 성질을 가지기 때문에 욕조, 층간소음재, 진동제거를 위한 제진제, 바닥완충제를 적용하기에 적합하며, 뿜칠 작업이 가능하기 때문에 생산성 및 경제성이 좋은 반경질 뿜칠용 폴리우레탄 발포체용 조성물 및 상기 반경질 뿜칠용 폴리우레탄 발포체용 조성물을 발포시킨 발포체를 제공하는 것을 목적으로 한다.In order to solve the problems of the prior art as described above, the present invention is excellent in foaming, foaming stability and storage stability, and has a semi-rigid nature of the tub, interlayer noise, vibration damper for vibration, floor It is an object of the present invention to provide a semi-foamed polyurethane foam composition and a semi-foamed polyurethane foam composition which are suitable for application of a buffer and can be sprayed. .
상기 목적을 달성하기 위하여, 본 발명은 뿜칠용 폴리우레탄 발포체용 조성물에 있어서,In order to achieve the above object, the present invention is a composition for blowing polyurethane foam,
a)ⅰ) 관능기가 2∼3이고 분자량이 1,000 내지 5,000 미만인 폴리에테르 폴리올 35 내지 70 중량부;a) iii) 35 to 70 parts by weight of a polyether polyol having 2-3 functional groups and a molecular weight of 1,000 to less than 5,000;
ⅱ) 관능기가 2∼3이고 분자량이 5,000 내지 7,000인 폴리에테르 폴리올 10 내지 40 중량부; Ii) 10 to 40 parts by weight of a polyether polyol having 2 to 3 functional groups and a molecular weight of 5,000 to 7,000;
ⅲ) 가교제 2 내지 10.5 중량부; Iii) 2 to 10.5 parts by weight of crosslinking agent;
ⅳ) 반응형 아민계 우레탄 촉매 3 내지 9 중량부; Iii) 3 to 9 parts by weight of a reactive amine urethane catalyst;
ⅴ) 금속계 우레탄 촉매 0.5 내지 2 중량부; Iii) 0.5 to 2 parts by weight of a metallic urethane catalyst;
ⅵ) 실리콘 계면활성제 0.1 내지 3 중량부; 및 Iii) 0.1 to 3 parts by weight of silicone surfactant; And
ⅵ) 물 0.3 내지 5 중량부 Iii) 0.3 to 5 parts by weight of water
를 포함하는 레진 프리믹스 45 내지 55 중량%; 및 45 to 55% by weight of resin premix comprising; And
b) 이소시안네이트기가 14 내지 18 중량%를 포함하는 폴리이소시아네이트 55 내지 45 중량%b) 55 to 45 weight percent polyisocyanate comprising 14 to 18 weight percent isocyanate groups
를 포함하는 것을 특징으로 하는 반경질 뿜칠용 폴리우레탄 발포체용 조성물을 제공한다.It provides a composition for semi-rigid polyurethane foam characterized in that it comprises a.
또한 본 발명은 상기 반경질 뿜칠용 폴리우레탄 발포체용 조성물을 발포시킨 발포체를 제공한다.In another aspect, the present invention provides a foamed foamed composition for the radial foaming polyurethane foam.
이하 본 발명을 상세하게 설명한다. Hereinafter, the present invention will be described in detail.
본 발명의 반경질 뿜칠용 폴리우레탄 발포체용 조성물은 a)ⅰ) 관능기가 2∼3이고 분자량이 1,000 내지 5,000 미만인 폴리에테르 폴리올 35 내지 70 중량부; ⅱ) 관능기가 2∼3이고 분자량이 5,000 내지 7,000인 폴리에테르 폴리올 10 내지 40 중량부; ⅲ) 가교제 2 내지 10.5 중량부; ⅳ) 반응형 아민계 우레탄 촉매 3 내지 9 중량부; ⅴ) 금속계 우레탄 촉매 0.5 내지 2 중량부; ⅵ) 실리콘 계면활성제 0.1 내지 3 중량부; 및 ⅵ) 물 0.3 내지 5 중량부를 포함하는 레진 프리믹스 45 내지 55 중량%; 및 b) 이소시안네이트기가 14 내지 18 중량%를 포함하는 폴리이소시아네이트 55 내지 45 중량%를 포함하는 것을 특징으로 한다. The composition for semi-rigid polyurethane foam of the present invention comprises a) iii) 35 to 70 parts by weight of a polyether polyol having 2-3 functional groups and a molecular weight of less than 1,000 to 5,000; Ii) 10 to 40 parts by weight of a polyether polyol having 2 to 3 functional groups and a molecular weight of 5,000 to 7,000; Iii) 2 to 10.5 parts by weight of crosslinking agent; Iii) 3 to 9 parts by weight of a reactive amine urethane catalyst; Iii) 0.5 to 2 parts by weight of a metallic urethane catalyst; Iii) 0.1 to 3 parts by weight of silicone surfactant; And iii) 45 to 55% by weight of resin premix, comprising 0.3 to 5 parts by weight of water; And b) 55 to 45 weight percent polyisocyanate comprising 14 to 18 weight percent isocyanate groups.
또한 본 발명의 반경질 뿜칠용 폴리우레탄 발포체용 조성물은 트리스(클로로이소프로필) 포스페이트 또는 트리스(2-클로로에틸)포스페이트인 난연제를 상기 레진 프리믹스 총 100 중량부에 대하여 5 내지 25 중량부로 더욱 포함할 수 있다. 난연제를 포함할 경우 반경질 뿜칠용 폴리우레탄 발포체의 난연성, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다.In addition, the composition for semi-rigid polyurethane foam of the present invention may further comprise 5 to 25 parts by weight of a flame retardant which is tris (chloroisopropyl) phosphate or tris (2-chloroethyl) phosphate based on 100 parts by weight of the total resin premix. Can be. Including a flame retardant has the advantage of improving the flame retardancy, foaming stability and storage stability of the semi-reflective polyurethane foam.
본 발명에 사용되는 상기 a)ⅰ) 및 a)ⅱ)의 폴리에테르 폴리올은 당업계에서 시판되고 폴리올을 사용할 수 있음은 물론이며, 디올 또는 글리세린을 출발 물질로 하여 프로필렌옥사이드 또는 에틸렌 옥사이드를 부가하여 제조할 수도 있다.The polyether polyols of a) iii) and a) ii) used in the present invention are commercially available in the art and can be used as a polyol, and propylene oxide or ethylene oxide can be added by using diol or glycerin as starting materials. It can also manufacture.
본 발명의 반경질 뿜칠용 폴리우레탄 발포체용 조성물은 a)ⅰ) 관능기가 2∼3이고 분자량이 1,000 내지 5,000 미만인 폴리에테르 폴리올 35 내지 70 중량부; ⅱ) 관능기가 2∼3이고 분자량이 5,000 내지 7,000인 폴리에테르 폴리올 20 내지 40 중량부를 포함하는 것이 바람직하다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포성, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다.The composition for semi-rigid polyurethane foam of the present invention comprises a) iii) 35 to 70 parts by weight of a polyether polyol having 2-3 functional groups and a molecular weight of less than 1,000 to 5,000; Ii) It preferably contains 20 to 40 parts by weight of a polyether polyol having 2 to 3 functional groups and a molecular weight of 5,000 to 7,000. If it is in the above range there is an advantage to improve the foamability, foam stability and storage stability of the polyurethane foam composition.
또한 본 발명에 사용되는 상기 ⅲ)의 가교제는 글리콜계 또는 아민계를 사용 할 수 있으며, 구체적으로 에틸렌글리콜, 디에틸렌글리콜, 트리에틸렌글리콜, 디프로필렌글리콜, 1,4-부탄디올, 1,6-헥산디올, 펜타에리트리톨, 디에탄올아민, 트리에탄올아민, 에틸렌디아민, 트리에틸렌테트라아민, 메틸렌오르토클로르아닐린, 4,4-디페닐메탄디아민, 2,6-디클로로-4,4-디페닐메탄디아민, 2,4-톨루엔디아민, 또는 2,6-톨루엔디아민 등을 사용할 수 있다.In addition, the cross-linking agent of iii) used in the present invention may be a glycol-based or amine-based, specifically, ethylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, 1,4-butanediol, 1,6- Hexanediol, pentaerythritol, diethanolamine, triethanolamine, ethylenediamine, triethylenetetraamine, methyleneorthochloraniline, 4,4-diphenylmethanediamine, 2,6-dichloro-4,4-diphenylmethanediamine , 2,4-toluenediamine, or 2,6-toluenediamine can be used.
상기 가교제는 레진 프리믹스에 대하여 2 내지 10.5 중량부로 포함되는 것이 바람직하며, 더욱 바람직하기로는 4.9 내지 9 중량부로 포함하는 것이 좋다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다.The crosslinking agent is preferably contained in an amount of 2 to 10.5 parts by weight based on the resin premix, and more preferably 4.9 to 9 parts by weight. If it is in the above range there is an advantage that can improve the foaming rate, foaming stability and storage stability of the polyurethane foam composition.
또한 본 발명에 사용되는 상기 ⅳ)의 반응형 아민계 우레탄 촉매는 아민 성분이 직접 반응에 참여함으로써 최종 발포체 내에 유해물질을 검출되지 않도록 하는 작용을 한다. 즉, 종래 아민계 촉매를 사용하는 발포체 조성물의 경우 발포체 내 아민성분이 남아있어 유기화학물질이 검출되었으나, 본 발명의 발포체용 조성물은 반응형 아민계 우레탄 촉매를 사용함으로써 발포체 내에 유해물질이 남아있지 않아 환경친화적이다.In addition, the reactive amine-based urethane catalyst of i) used in the present invention serves to prevent the amine component from being detected in the final foam by participating in the direct reaction. That is, in the case of a foam composition using a conventional amine catalyst, the amine component in the foam remains, so that an organic chemical was detected, but the composition for the foam of the present invention does not remain harmful substances in the foam by using a reactive amine urethane catalyst It is environmentally friendly.
상기와 같은 반응형 아민계 우레탄 촉매는 N-메틸-N'-하이드록시에틸피페라진(N-methyl-N'-hydroxyethylpiperazine), N,N-디메틸아미노에톡시에탄올(N,N-dimethylaminoethoxyethanol), 또는 N,N,N'-트리메틸아미노에틸에타놀아미넷(N,N,N'-termiethylaminoethylethanolaminet) 등을 사용할 수 있다.Reaction type amine-based urethane catalysts such as N-methyl-N'-hydroxyethylpiperazine (N-methyl-N'-hydroxyethylpiperazine), N, N-dimethylaminoethoxyethanol (N, N-dimethylaminoethoxyethanol), Or N, N, N'-trimethylaminoethylethanolamine (N, N, N'-termiethylaminoethylethanolaminet) or the like.
상기 반응형 아민계 우레탄 촉매는 레진 프리믹스에 대하여 4 내지 9 중량부 로 포함되는 것이 바람직하다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있으며, 환경친화적인 장점이 있다.The reactive amine urethane catalyst is preferably included in 4 to 9 parts by weight based on the resin premix. When in the above range can improve the foaming rate, foaming stability and storage stability of the polyurethane foam composition, there is an environmentally friendly advantage.
또한 본 발명의 발포체용 조성물은 ⅴ) 금속계 우레탄 촉매를 0.5 내지 2 중량부 포함하는 바, 상기 금속계 우레탄 촉매는 피비옥테이트, 틴옥테이트, 포테슘옥테이트, 칼슘옥테이트 등을 사용할 수 있으며, 상기 범위 내로 사용할 경우 폴리우레탄 발포체 조성물의 열적안정성, 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다In addition, the foam composition of the present invention includes: i) 0.5 to 2 parts by weight of a metal-based urethane catalyst, the metal-based urethane catalyst may be used in the fibiate, tin octet, potassium octate, calcium octet, etc. When used inside, there is an advantage to improve the thermal stability, foaming rate, foaming stability and storage stability of the polyurethane foam composition
본 발명에 사용되는 상기 ⅵ)의 실리콘 계면활성제는 실리콘 오일을 사용할 수 있으며, 이는 우레탄 발포체의 성형상태를 잘 유지되게 하는 역할을 하며, 주로 메틸 실록산-폴리에테르 계면활성제 등이 사용되며, 구체적인 예로 다우코닝사의 DC-5619, DC-193 등을 사용할 수 있다.The silicone surfactant of iii) used in the present invention may use a silicone oil, which serves to maintain the molded state of the urethane foam well, mainly methyl siloxane-polyether surfactant, etc., specific examples Dow Corning's DC-5619, DC-193, etc. can be used.
상기 실리콘 계면활성제는 레진 프리믹스에 대하여 0.1 내지 3 중량부로 포함되는 것이 바람직하며, 0.1 내지 1.5 중량부로 포함하면 더욱 좋다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다. The silicone surfactant is preferably included in an amount of 0.1 to 3 parts by weight, more preferably 0.1 to 1.5 parts by weight based on the resin premix. If it is in the above range there is an advantage that can improve the foaming rate, foaming stability and storage stability of the polyurethane foam composition.
상기와 같은 성분들을 함유하는 레진 프리믹스는 상기 성분들 이외에 물을 더 포함하며, 그 함량은 레진 프리믹스에 대하여 0.3 내지 5 중량부로 포함되는 것이 바람직하며, 0.5 내지 2 중량부로 포함하면 더욱 좋다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있 는 장점이 있다.The resin premix containing the above components further includes water in addition to the above components, and the content thereof is preferably included in an amount of 0.3 to 5 parts by weight with respect to the resin premix, and more preferably 0.5 to 2 parts by weight. If it is in the above range there is an advantage that can improve the foaming rate, foaming stability and storage stability of the polyurethane foam composition.
상기와 같은 성분으로 이루어지는 a)의 레진 프리믹스는 본 발명의 뿜칠용 폴리우레탄 발포체용 조성물 총 함량에 45 내지 55 중량%로 포함되는 것이 바람직하며, 필요에 따라 트리스(클로로이소프로필) 포스페이트 또는 트리스(2-클로로에틸)포스페이트인 난연제를 상기 레진 프리믹스 총 100 중량부에 대하여 10 내지 25 중량부로 더욱 포함할 수 있다.Resin premix of a) consisting of the above components is preferably included in the total content of the composition for the polyurethane foam for spraying of the present invention in 45 to 55% by weight, tris (chloroisopropyl) phosphate or tris ( The flame retardant, 2-chloroethyl) phosphate, may be further included in an amount of 10 to 25 parts by weight based on 100 parts by weight of the total resin premix.
또한 본 발명에 사용되는 상기 b)의 폴리이소시아네이트는 이소시아네이트기를 14∼18 중량%로 포함하는 것이 좋으며, 상기 폴리이소시아네이트는 본 발명의 뿜칠용 폴리우레탄 발포체용 조성물 총 함량에 55 내지 45 중량%로 포함되는 것이 바람직하다. 상기 범위 내인 경우 폴리우레탄 발포체 조성물의 발포율, 발포안정성 및 저장안정성을 향상시킬 수 있는 장점이 있다.In addition, the polyisocyanate of b) used in the present invention may include isocyanate groups in an amount of 14 to 18% by weight, and the polyisocyanate is included in an amount of 55 to 45% by weight in the total content of the composition for blowing polyurethane foam of the present invention. It is desirable to be. If it is in the above range there is an advantage that can improve the foaming rate, foaming stability and storage stability of the polyurethane foam composition.
본 발명의 발포체용 조성물은 공지의 스프레이 전용발포기를 사용하여 발포시킬 수 있으며 상기와 같은 a)의 레진 프리믹스와 b)의 폴리이소시아네이트 반응시 발포제로서 화학적인 발포제인 완전 이산화탄소를 사용함으로써 발포배율을 1.5 ~ 5 배 정도 유지할 수 있으며, 발포안정성 및 저장안정성이 뛰어난 장점이 있으며, 본 발명에 따른 반경질 뿜칠용 폴리우레탄 발포체용 조성물은 반경질(semi-rigid)의 성질을 가지기 때문에 기존에 FRP로 제조된 욕조를 중간 충전물로 본 발명의 반경질 뿜칠용 폴리우레탄 발포체용 조성물을 사용할 경우 촉감이 부드러우면서도 제품의 고급화를 꾀할 수 있고, 또한 층간소음재, 진동제거를 위한 제진제, 바닥완충제를 적용하기에 적합하며, 뿜칠 작업이 가능하기 때문에 생산성 및 경제 성이 좋은 장점이 있다.The foam composition of the present invention can be foamed using a known spray foaming machine, and the foaming ratio is 1.5 by using complete carbon dioxide, which is a chemical foaming agent, as a foaming agent in the resin premix of a) and the polyisocyanate of b). It can maintain about ~ 5 times, has excellent foaming stability and storage stability, and the composition for semi-rigid polyurethane foam according to the present invention is made of conventional FRP because it has the properties of semi-rigid When using the composition for the semi-swelling polyurethane foam of the present invention as an intermediate filling of the bath, the soft feel and high quality of the product can be achieved, and also, the interlayer noise absorber, vibration damping agent for removing vibration, and floor buffer are applied. It is suitable for the work, and it is possible to work to be sprayed, which has the advantage of good productivity and economic efficiency.
이하, 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시하나, 하기 실시예는 본 발명을 예시하는 것일 뿐 본 발명의 범위가 하기 실시예에 한정되는 것은 아니다.Hereinafter, preferred examples are provided to help understanding of the present invention, but the following examples are merely to illustrate the present invention, and the scope of the present invention is not limited to the following examples.
[실시예]EXAMPLE
실시예 1Example 1
글리세린을 개시제로 하고 프로필렌옥사이드를 부가중합시켜 제조한 분자량 4000인 폴리에테르 폴리올(OHv 35 ㎎KOH/g2) 350 중량부, 글리세린을 개시제로 하고 프로필렌옥사이드를 부가중합시켜 제조한 분자량 6000인 폴리에테르 폴리올(OHv 28 ㎎KOH/g2) 100 중량부, 가교제 디에탄올아민 20 중량부, 실리콘 계면활성제 2.5 중량부, 난연제 35 중량부, 반응형 아민계 우레탄 촉매로 HPW(일본 TOSHO사) 20 중량부, 금속계 우레탄 촉매로 포테슘옥테이트 5 중량부 및 증류수 2.5 중량부를 함유하는 레진프리믹스와 NCO를 14 중량%로 포함하는 폴리메틸디페닐디이소시아네이트 535 중량부를 혼합하여 반경질 뿜칠용 폴리우레탄 발포체용 조성물을 제조하였다.350 parts by weight of a polyether polyol (OHv 35 mgKOH / g2) having a molecular weight of 4000 prepared by addition polymerization of propylene oxide with glycerin as an initiator, and a polyether polyol having a molecular weight of 6000 produced by addition polymerization of propylene oxide with glycerin as an initiator. (OHv 28 mgKOH / g2) 100 parts by weight, 20 parts by weight of crosslinking agent diethanolamine, 2.5 parts by weight of silicone surfactant, 35 parts by weight of flame retardant, 20 parts by weight of HPW (Japan Tosho Co., Ltd.) with a reactive amine urethane catalyst, metal The urethane catalyst was mixed with a resin premix containing 5 parts by weight of potassium octane and 2.5 parts by weight of distilled water and 535 parts by weight of polymethyldiphenyl diisocyanate containing 14% by weight of NCO to prepare a polyurethane foam composition for semi-rigid blowing. .
비교예 1∼4Comparative Examples 1 to 4
하기 표 1과 같은 성분과 조성으로 사용하여 발포체용 조성물을 제조하였다.To prepare a composition for the foam using the components and compositions shown in Table 1.
하기 표 1의 단위는 중량부이다.The unit in Table 1 is parts by weight.
상기 실시예 1 및 비교예 1 내지 4에서 제조한 발포체 조성물을 이용하여 저장안정성, 유기휘발성, 밀도 및 폼상태를 측정하고, 그 결과를 하기 표 2에 나타내었다.Storage stability, organic volatility, density and foam state were measured using the foam compositions prepared in Example 1 and Comparative Examples 1 to 4, and the results are shown in Table 2 below.
상기 저장안정성은 메스실린더에 레진프리믹스를 투입 후 육안으로 관찰하였다.The storage stability was visually observed after the resin premix was added to the measuring cylinder.
상기 유기휘발성의 측정은 건축재료에서의 유기휘발성화합물 방출강도를 측정하는 친환경 건축자재 단체품질인증 시험방법의 소형챔버법(한국공기청정협회주관)으로 실시하였다.The organic volatility was measured by a small chamber method (managed by Korea Air Cleaning Association) of the environmental quality building material quality test method for measuring the emission intensity of organic volatile compounds in building materials.
상기 실험에서 밀도측정은 KS M ISO 845 (발포플라스틱 및 고무-겉보기 밀도의 측정)에 준하여 발포체를 일정한 규격으로 제단하여 부피 대비 중량으로 실시하였으며, 적용되는 밀도는 200 ~ 700 kg/m3이며, 더욱 바람직하기로는 360 ~ 500 kg/m3이다. 밀도가 너무 낮으면 상대적 중량 등의 영향으로 변형폭이 크며, 또한 너무 높으면 생산성과 비용측면에서 부정적영향이 있기 때문이다.Density measurement in the experiment was carried out by weight to volume by cutting the foam to a certain standard in accordance with KS M ISO 845 (measurement of foamed plastic and rubber-apparent density), the applied density is 200 ~ 700 kg / m 3 , More preferably, it is 360-500 kg / m <3> . If the density is too low, the deformation width is large due to the influence of relative weight, and if too high, there is a negative effect in terms of productivity and cost.
상기 폼상태는 우레탄 발포체를 형성시 수축이나 외관의 변형이 없이 일정한 형태를 유지하고 있는지를 판단하였다.The foam state was determined whether the urethane foam is maintained in a constant form without shrinkage or deformation of the appearance.
상기 표 2에 나타낸 바와 같이, 본 발명에 따라 제조한 실시예 1의 반경질 폴리우레탄 발포체용 조성물은 비교예 1 내지 4와 비교하여 저장안정성, 유기휘발성(일반자재의 최상급 규격인 클로버 5개 규격안에 부합되는 결과를 얻었다. 총유기휘발성 -0.01 mg/m2h 미만, 포름알데히드 -0.03 mg/m2h 미만), 밀도 및 폼상태가 모두 우수함을 확인할 수 있었다.As shown in Table 2, the composition for the semi-hard polyurethane foam of Example 1 prepared according to the present invention is compared to Comparative Examples 1 to 4 storage stability, organic volatility The total organic volatility of less than -0.01 mg / m 2 h, formaldehyde -0.03 mg / m 2 h), density and foam state were all excellent.
또한 상기 실시예 1의 발포체용 조성물을 KS M ISO-845의 방법으로 발포율을 측정한 결과 1100 % 정도의 발포특성을 나타내었다.In addition, as a result of measuring the foaming rate of the foam composition of Example 1 by the method of KS M ISO-845, it showed foaming properties of about 1100%.
본 발명에 따른 반경질 뿜칠용 폴리우레탄 발포체용 조성물은 발포성, 발포안정성 및 저장안정성이 뛰어나며, 반경질(semi-rigid)의 성질을 가지기 때문에 욕조, 층간소음재, 진동제거를 위한 제진제, 바닥완충제를 적용하기에 적합하며, 뿜칠 작업이 가능하기 때문에 생산성 및 경제성이 좋다.The semi-rigid polyurethane foam composition according to the present invention has excellent foamability, foaming stability and storage stability, and has semi-rigid properties, so it is a tub, an interlayer noise absorber, a vibration damper for vibration removal, and a floor. It is suitable for the application of buffers and can be sprayed to improve productivity and economy.
이상에서 설명한 본 발명은 전술한 실시예에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형, 및 변경이 가능함은 본 발명의 속하는 기술분야에서 통상의 지식을 가진 자에게 있어서 명백한 것이다.The present invention described above is not limited to the above-described embodiments, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It is obvious to those who have it.
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CN112661932A (en) * | 2020-12-23 | 2021-04-16 | 上海玓墨化工科技有限公司 | Spraying type environment-friendly rigid polyurethane foam raw material composition for pipeline |
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CN107602813A (en) * | 2017-07-26 | 2018-01-19 | 航天材料及工艺研究所 | A kind of spray mo(u)lding high density polyurethane foam and preparation method thereof |
CN107602813B (en) * | 2017-07-26 | 2020-10-23 | 航天材料及工艺研究所 | Spray-molded high-density polyurethane foam and preparation method thereof |
CN112661932A (en) * | 2020-12-23 | 2021-04-16 | 上海玓墨化工科技有限公司 | Spraying type environment-friendly rigid polyurethane foam raw material composition for pipeline |
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