KR20140061055A - Composition for polyurethane foam and polyurethane foam prepared therefrom - Google Patents
Composition for polyurethane foam and polyurethane foam prepared therefrom Download PDFInfo
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- KR20140061055A KR20140061055A KR1020120128201A KR20120128201A KR20140061055A KR 20140061055 A KR20140061055 A KR 20140061055A KR 1020120128201 A KR1020120128201 A KR 1020120128201A KR 20120128201 A KR20120128201 A KR 20120128201A KR 20140061055 A KR20140061055 A KR 20140061055A
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- foam
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- polyurethane foam
- polyol
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- 229920005830 Polyurethane Foam Polymers 0.000 title claims description 32
- 239000011496 polyurethane foam Substances 0.000 title claims description 32
- 239000000203 mixture Substances 0.000 title claims description 20
- 239000006260 foam Substances 0.000 claims abstract description 29
- 239000004816 latex Substances 0.000 claims abstract description 19
- 229920000126 latex Polymers 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 14
- 229920005862 polyol Polymers 0.000 claims description 26
- 150000003077 polyols Chemical class 0.000 claims description 25
- 239000003054 catalyst Substances 0.000 claims description 13
- 229920001228 polyisocyanate Polymers 0.000 claims description 9
- 239000005056 polyisocyanate Substances 0.000 claims description 9
- 229920001451 polypropylene glycol Polymers 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920002323 Silicone foam Polymers 0.000 claims description 5
- 239000013514 silicone foam Substances 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 8
- 230000000704 physical effect Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000004088 foaming agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 150000002513 isocyanates Chemical class 0.000 description 5
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- 229920000079 Memory foam Polymers 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- -1 ether glycol polyol Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 239000008210 memory foam Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011369 resultant mixture Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08J9/12—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 by a physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
- C08L21/02—Latex
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
본 발명은 폴리우레탄 발포체용 조성물 및 이에 의한 폴리우레탄 발포체에 관한 것이다. 보다 구체적으로, 본 발명은 라텍스 분말과 혼합된 폴리우레탄 발포체로서 고온, 자외선에 경화현상을 일으키는 라텍스의 단점을 개선하고 폴리우레탄 폼의 물리적 특성을 향상시키며 지지성을 갖는 온도둔감형 저탄성 폴리우레탄 폼 발포체로서 수면에 적합한 최적의 체압분산을 제공하는 매트리스용 폴리우레탄 발포체에 관 한 것이다. The present invention relates to a composition for a polyurethane foam and a polyurethane foam therefrom. More specifically, the present invention relates to a polyurethane foam mixed with a latex powder, which improves disadvantages of a latex causing a curing phenomenon at a high temperature and an ultraviolet ray, improves the physical properties of the polyurethane foam, and provides a temperature-insensitive low elasticity polyurethane The present invention relates to a polyurethane foam for a mattress which provides an optimal pressure dispersion suitable for a sleeping surface as a foam foam.
폴리우레탄(polyurethane)은 분자 내에 우레탄 결합 -OCONH-를 갖는 고분자 화합물의 총칭을 말하는 것으로, 고무상태의 탄성체로서 우레탄 고무·합성 섬유·접착제·도료·우레탄폼 및 자동차 범퍼 등 최근에 그 이용 범위가 확대되고 있는 실정이며, 일반적으로 디올(1,4-부탄디올 등)과 이소시아네이트(Isocyanate)류 등의 첨가 중합에 의해 제조된다.Polyurethane refers to a general term for a polymer compound having a urethane bond -OCONH- in a molecule. It is a rubber compound having a range of use such as urethane rubber, synthetic fiber, adhesive, paint, urethane foam, (1,4-butanediol), isocyanate and the like, and is generally produced by addition polymerization of diol (e.g., 1,4-butanediol) and isocyanate.
폴리우레탄을 발포시킨 폴리우레탄 발포체는 가교반응과 함께 발열하여 수지화된 것으로, 반응 진행 중에 발생하는 이산화탄소(CO2 ) 때문에 발포 다공질이 되는 바, 즉 폴리우레탄폼(poly - urethanefoam)은 다포성 또는 스폰지형의 폴리우레탄 수지로 분자내에 에테르결합 -O- 를 갖는 고분자The polyurethane foam foamed with polyurethane is foamed by the carbon dioxide (CO2) generated during the reaction in the course of the reaction, that is, the polyurethane foam is a polyurethane foam or a sponge Polymer having an ether bond -O- in the molecule by a polyurethane resin of the type
화합물인 폴리에테르계 폴리올, 또는 분자내에 에스테르결합 -CO-O-를 갖는 고분자 화합물인 폴리에스테르계 폴리올과 2관능 또는 다관능의 이소시아네이트류와 발포체, 촉매등의 원료 및 각종 첨가제와 혼합 반응시켜, 글리콜 성분과 이소시아네이트류 성분이 물에 의해 반응하여 가교되어 그물 모양이 되는데 이때 발생하는 가스(예컨데, CO2 )를 이용하여 발포체를 만들고 있다. 이러한 폴리우레탄 발포체는 자동차, 침대, 쇼파, 의자 등의 쿠션재(매트리스, 시트), 충진재, 필터등으로 사용되고 있다. Polyether polyol which is a polymer having an ester bond -CO-O- in the molecule and a raw material such as a bifunctional or polyfunctional isocyanate, a foam and a catalyst, and various additives are mixed and reacted, The glycol component and the isocyanate component are reacted with each other by water to be crosslinked to form a mesh. The foam is formed by using a gas (for example, CO2) generated at this time. Such a polyurethane foam is used as a cushion material (mattress, sheet), a filling material, a filter, etc. for automobiles, beds, sofas and chairs.
한편, 폴리우레탄 폼의 셀구조는 오픈셀과 클로우즈 셀로 나눌수 있는데 오픈셀은 지지대(우레탄 폼 골격)만 있는 구조로서 주로 자동차 시트와 같은 고탄성 폼 제조에 사용되며, 클로우즈셀은 지지대와 이들 사이에 셀 표면이 존재하는 구조로서 주로 메모리폼 제조에 사용된다. On the other hand, the cell structure of the polyurethane foam can be divided into an open cell and a closed cell. The open cell is a structure having only a support (a urethane foam skeleton), mainly used for manufacturing a high elastic foam such as an automobile seat, It is used mainly in the manufacture of memory foam.
종래 클로우즈 셀은 내외부로 공기 흐름이 제한되어 메모리폼과 같은 저탄성 폼 제조에 적용되며 오픈셀은 쇼파 혹은 자동차 시트와 같은 고탄성폼 제조에 사용된다.Conventional closed cells have limited air flow to the inside and outside, and are applied to manufacture low elastic foam such as memory foam, and open cells are used to make high elastic foam such as sofa or car seat.
또한, 종래 저탄성 폴리우레탄 폼은 외부 온도에 따른 경도의 변화가 커서 온도에 민감하며 지지성이 없어 그 자체로 매트리스 용도로 사용하는데에는 한계가 있으며 단순히 탑퍼 형태로 사용되어왔다.In addition, the conventional low-elasticity polyurethane foam has a large hardness variation according to the external temperature and is sensitive to temperature and does not have supportability. Therefore, it is limited to use as a mattress by itself and has been used simply as a topper.
본 발명은 침대 매트릭스가 최적의 체압분산 효과를 내어 가장 안락한 수면 수면환경을 제공할 수 있도록 폴리우레탄 발포체 조성물을 제공하는 것이다.The present invention is to provide a polyurethane foam composition so that a bed matrix can provide optimal pressure dispersion effect to provide the most comfortable sleeping environment.
본 발명은 주변 온도 변화에 따라 경도 등 물성이 변화를 최소화 하고 자체 지지성을 갖는 온도 둔감형 저탄성 폴리우레탄 발포체 조성물을 제공하는 것이다.The present invention provides a temperature-insensitive, low-elasticity polyurethane foam composition that minimizes changes in physical properties, such as hardness, and has self-supporting properties in response to changes in ambient temperature.
본 발명은 신율, 인장강도 등의 물리적 특성을 향상시켜 매트릭스용폴리우레탄 폼을 제공하는 것이다. The present invention provides a polyurethane foam for a matrix by improving physical properties such as elongation and tensile strength.
본 발명의 하나의 양상은 폴리올, 상기 폴리올 100중량부 대비 One aspect of the present invention relates to a polyol, 100 parts by weight of the polyol
폴리이소시아네이트 30~40중량부, 물 1~2중량부, 실리콘 정포제 0.5~1 중량부, 및 촉매 0.1~0.2 중량부를 포함하는 폴리우레탄 발포체 조성물에 관계한다.From 30 to 40 parts by weight of a polyisocyanate, from 1 to 2 parts by weight of water, from 0.5 to 1 part by weight of a silicone foam stabilizer, and from 0.1 to 0.2 parts by weight of a catalyst.
다른 양상에서 본 발명은 상기 조성물에 의해 제조된 폴리우레탄 발포체에 관계한다. 본 발명의 발포체는 그 내부에 분산되어 존재하는 라텍스 파우더 및 셀 내부를 관통하는 에어터널을 구비하고, 발포체 두께가 5~10cm범위이다. In another aspect, the invention relates to a polyurethane foam made by the composition. The foam of the present invention has a latex powder dispersed therein and an air tunnel passing through the inside of the cell, and the thickness of the foam is in the range of 5 to 10 cm.
본 발명에 따른 폴리우레탄 발포체는 그 내부에 분산되어 존재하는 라텍스 파우더로 인해 라텍스의 단점인 경화현상이 나타나지 않으면서 발포체의 인장, 인열, 내구성 등의 물리적 특성이 향상된다.The polyurethane foam according to the present invention exhibits physical properties such as tensile, tear and durability of the foam without the curing phenomenon which is a disadvantage of latex due to the latex powder dispersed therein.
본 발명의 폴리우레탄 발포체는 클로우즈 셀 구조임에도 미세 공기 흐름을 조정할 수 있는 에어터널이 셀 내부를 관통하여 형성되어 있고, 저탄성을 가져 외부 압력 변화에 자체 지지성을 제공할 수 있다. The polyurethane foam of the present invention has an air tunnel through which a fine air flow can be adjusted even though it is a closed cell structure, and has low elasticity to provide self-supportability to external pressure change.
또한, 본 발명은 외부온도에 따른 경도변화가 둔감한 폴리우레탄 발포체를 제공한다. Further, the present invention provides a polyurethane foam which is insensitive to change in hardness according to an external temperature.
본 발명은 하기의 설명에 의하여 모두 달성될 수 있다. 하기의 설명은 본 발명의 바람직한 구체 예를 기술하는 것으로 이해되어야 하며, 본 발명이 반드시 이에 한정되는 것은 아니다. The present invention can be all accomplished by the following description. The following description should be understood to describe preferred embodiments of the present invention, but the present invention is not necessarily limited thereto.
본 발명의 폴리우레탄 발포체 조성물은 폴리올, 폴리이소시아네이트 물, 실리콘 정포제, 촉매 및 라텍스 파우더를 포함한다. The polyurethane foam composition of the present invention comprises a polyol, a polyisocyanate water, a silicone foam stabilizer, a catalyst, and a latex powder.
본 발명의 구현 예들에서 사용가능한 폴리올은 분자 중에 수산기(히드록시기, OH)를 2개 이상 가진 지방족 화합물을 사용할 수 있다. 그 구체적인 예로는 폴리프로필렌 글리콜 폴리올(polypropylene glycol polyol), 폴리테트라메틸렌 에테르 글리콜 폴리올(polyethermethylene ether glycol polyol)과 같은 폴리알킬렌 글리콜 폴리올; 아민터미네이티드 폴리에테르 화합물(amine terminated polyether polyol), 또는 폴리에스테르 폴리올 (polyester polyol) 등을 사용할 수 있다. 폴리에스테르 폴리올로는 아디프산(adipic acid), 무수프탈산(phthalic anhydride) 또는 테레프탈산 등을 사용할 수 있다.The polyols usable in the embodiments of the present invention may be aliphatic compounds having two or more hydroxyl groups (hydroxyl group, OH) in the molecule. Specific examples thereof include polyalkylene glycol polyols such as polypropylene glycol polyol and polyethermethylene ether glycol polyol; An amine terminated polyether polyol, a polyester polyol, or the like can be used. As the polyester polyol, adipic acid, phthalic anhydride or terephthalic acid may be used.
바람직하게는 상기 폴리올은 중량 평균분자량이 3000~4000인 폴리프로필렌 글리콜과 1000~2000인 폴리프로필렌 글리콜을 1 : 0.4~0.6의 중량비로 혼합한 폴리프로펠렌 글리콜 혼합체를 사용할 수 있다. 상기 폴리프로필렌 글리콜은 EO Capping인 것을 사용할 수 있다. Preferably, the polyol may be a polypropylene glycol mixture obtained by mixing polypropylene glycol having a weight average molecular weight of 3,000 to 4,000 and polypropylene glycol having 1,000 to 2,000 at a weight ratio of 1: 0.4 to 0.6. The polypropylene glycol may be EO Capping.
본 발명의 조성물은 상대적으로 고분자인 폴리올(분자량 3000~4000)과 저분자인 폴리올(분자량 1000~2000)을 적절히 혼합함으로써 저탄성의 기능을 갖고, 폴리우레탄의 유리전이온도를 상온까지 확대하여 외부온도에 따른 경도변화를 둔감하게 할 수 있다. The composition of the present invention has a function of low elasticity by appropriately mixing a polyol (molecular weight 3000 to 4000) and a low molecular weight polyol (molecular weight 1000 to 2000), and the glass transition temperature of the polyurethane is increased to room temperature, It is possible to make the change in hardness depending on
폴리이소시아네이트는 통상적으로 사용되는 것을 사용할 수 있으며, 일예로 폴리머성 디페닐메탄 디이소시아네이트(polymeric diphenylmethane diisocyanate) 또는 톨루엔 디이소시아네이트를 사용할 수 있으며, 그 사용량은 폴리올 100 중량부에 대하여 30~40 중량부가 바람직하다. 상기 폴리이소시아네이트의 함량이 이 범위에 포함되는 경우, 폴리올과 적절하게 반응하여 최적의 폴리우레탄 발포체를 제조할 수 있다.For example, polymeric diphenylmethane diisocyanate or toluene diisocyanate may be used. The amount of the polyisocyanate to be used is preferably 30 to 40 parts by weight per 100 parts by weight of the polyol Do. When the content of the polyisocyanate is within this range, an optimum polyurethane foam can be produced by reacting with the polyol appropriately.
상기 라텍스 파우더는 고형분의 함량이 98중량% 이상이며 10~100㎛, 바람직하게는 10~50㎛, 가장 바람직하게는 50㎛ 정도의 입자 크기를 사용한다. 상기 라텍스 분말 크기인 경우에 라텍스 고유 물성을 잃지 않으면서 폴리우레탄 발포체에 균일하게 분산될 수 있다. The latex powder has a solid content of 98% by weight or more and a particle size of 10 to 100 占 퐉, preferably 10 to 50 占 퐉, and most preferably about 50 占 퐉. In the case of the size of the latex powder, it can be uniformly dispersed in the polyurethane foam without losing the inherent physical properties of the latex.
상기 라텍스 파우더는 폴리올 100 중량부에 대하여 10~40중량부, 바람직하게는 20~25 중량부를 사용할 수 있다.The latex powder may be used in an amount of 10 to 40 parts by weight, preferably 20 to 25 parts by weight, based on 100 parts by weight of the polyol.
본 발명은 발포제로서 물을 기본적으로 사용한다. The present invention basically uses water as a foaming agent.
본 발명의 발포제로서 종래 폴리우레탄 폼의 제조에 사용되는 시클로 펜탄 이외에도 상온 정도의 끓는점을 갖는 탄화수소류의 발포성 화합물들이 광범위하게 사용될 수 있고, 구체적인 예를 들면 노말펜탄, 이소펜탄 등일 수 있다. 또한 상기 발포제로서 메틸렌클로라이드, 헥산, 아세톤 등과 같은 우레탄 반응열을 이용하는 물리적인 발포제를 사용할 수 있고, 물이 이소시아네이트와 반응하여 CO2를 발생하는 성질을 이용하는 경우 등의 화학적인 발포제 역시 사용할 수 있다. 상기 발포제들의 둘 이상의 혼합물이 사용될 수도 있다.In addition to cyclopentane, which is conventionally used in the production of polyurethane foam, foaming compounds of hydrocarbons having a boiling point of about room temperature can be widely used as the foaming agent of the present invention, and specific examples thereof include normal pentane, isopentane and the like. A physical foaming agent using a urethane reaction heat such as methylene chloride, hexane, acetone or the like may be used as the foaming agent, and a chemical foaming agent such as a case where water reacts with isocyanate to generate CO2 is utilized. Mixtures of two or more of the blowing agents may be used.
상기 발포제의 함량은 폴리올 100 중량부에 대하여 1 내지 5중량부, 바람직하게는 1 내지 3중량부를 사용할 수 있다. The content of the foaming agent may be 1 to 5 parts by weight, preferably 1 to 3 parts by weight based on 100 parts by weight of the polyol.
본 발명의 조성물은 정포제를 포함한다. 상기 정포제는 원료 물질의 균질성을 유지시키며, 기포 안정제로서 기포가 급격하게 팽창하더라도 파괴되지 않고, 안정하게 형성될 수 있게 기포의 구조를 조절할 수 있다. 정포제로 실리콘 수지가 사용될 수 있으며, 예컨대 폴리디메틸실록산계 또는 폴리실록산에테르계 실리콘 수지 및 그의 혼합물이 사용될 수 있다. The composition of the present invention includes a foaming agent. The foam stabilizer maintains the homogeneity of the raw material and can control the structure of the bubbles so that the foam stabilizer can be stably formed without being destroyed even when the bubbles are rapidly expanded. A foam-free silicone resin may be used, for example, a polydimethylsiloxane-based or polysiloxane-ether-based silicone resin and mixtures thereof may be used.
상기 정포제는 폴리올 100중량부에 대하여 0.5 내지 1 중량부가 사용될 수 있는데, 상기 범위 내의 경우, 다수의 기포 생성이 용이하고 기포가 안정화되어 셀을 파괴하지 않으면서 셀 내부를 관통하는 에어터널을 형성할 수 있다. The foam stabilizer may be used in an amount of 0.5 to 1 part by weight based on 100 parts by weight of the polyol. If the foam stabilizer is within the above range, a large number of bubbles are easily formed and the bubbles are stabilized to form an air tunnel penetrating the inside of the cell can do.
본 발명의 조성물은 촉매를 추가로 포함할 수 있다. 상기 촉매로는 폴리올과 폴리이소시아네이트 반응이 활발하게 일어나도록 도와주는 역할을 하는 물질은 어떠한 것도 제한없이 사용할 수 있으나, 그 예로 아민계 촉매, 터셔리 아민계 촉매를 들 수 있다. 상기 아민계 촉매의 구체적인 예로는 디메틸사이클로헥실아민, N,N,N',N",N"-펜타 메틸 디에틸렌 트리아민 또는 트리에틸 디아민 등을 사용할 수 있다. 상기 촉매의 함량은 상기 폴리올 100 중량부에 대하여 1 내지 5 중량부가 바람직하나, 이에 제한되는 것은 아니다. 촉매의 함량이 상기 범위에 포함되는 경우 발포 반응 시간 제어가 용이할 수 있다. The composition of the present invention may further comprise a catalyst. As the catalyst, there can be used any material that can actively assist the polyol and polyisocyanate reaction, but examples thereof include amine-based catalysts and tertiary amine-based catalysts. Specific examples of the amine catalysts include dimethylcyclohexylamine, N, N, N ', N ", N" -pentamethyldiethylenetriamine or triethylenediamine. The content of the catalyst is preferably 1 to 5 parts by weight based on 100 parts by weight of the polyol, but is not limited thereto. When the content of the catalyst is within the above range, it is easy to control the foaming reaction time.
상기 폴리올에 촉매, 실리콘 정포제, 물, 라텍스 파우더를 혼합하고 폴리이소시아네이트를 상기 혼합용액에 넣어 발포할 수 있다. 상기 발포는 종래 공지된 방법을 사용할 수 있는데, 일예로서, 상기 혼합용액에 폴리이소시아네이트를 넣은 후 몰드에 부어 발표성형을 실시하고, 이 때 몰드는 약 60℃로 유지할 수 있다. The polyol may be mixed with a catalyst, a silicone foam stabilizer, water, and a latex powder, and the polyisocyanate may be foamed in the mixed solution. For example, the polyisocyanate may be added to the mixed solution, and the resultant may be poured into a mold to carry out the foaming, wherein the mold can be maintained at about 60 ° C.
다른 양상에서 본 발명은 상기 조성물에 의해 제조된 매트릭스용 폴리우레탄 발포체에 관계한다. In another aspect, the invention relates to a polyurethane foam for a matrix made by the composition.
상기 폴리우레탄 발포체는 내부에 분산되어 있는 라텍스 분말을 포함한다. 상기 발포체는 두께가 5~10cm범위로 두꺼워서 침대 매트릭스로 사용될 수 있다.The polyurethane foam comprises a latex powder dispersed therein. The foam can be used as a bed matrix with a thickness in the range of 5-10 cm thick.
상기 발포체는 셀 내부를 관통하는 에어터널을 구비한다.The foam has an air tunnel penetrating the inside of the cell.
본 발명에 따른 폴리우레탄 발포체는 그 내부에 분산되어 존재하는 라텍스 파우더로 인해 라텍스의 단점인 경화현상이 나타나지 않으면서 발포체의 인장, 인열, 내구성 등의 물리적 특성이 향상된다.The polyurethane foam according to the present invention exhibits physical properties such as tensile, tear and durability of the foam without the curing phenomenon which is a disadvantage of latex due to the latex powder dispersed therein.
본 발명의 폴리우레탄 발포체는 클로우즈 셀 구조임에도 미세 공기 흐름을 조정할 수 있는 에어터널이 셀 내부를 관통하여 형성되어 있고, 저탄성을 가져 외부 압력 변화에 자체 지지성을 제공할 수 있다. The polyurethane foam of the present invention has an air tunnel through which a fine air flow can be adjusted even though it is a closed cell structure, and has low elasticity to provide self-supportability to external pressure change.
또한, 본 발명의 폴리우레탄 발포체는 저분자량과 고분자량의 폴리올의 혼합체를 사용하여 외부온도에 따른 경도변화가 둔감하다.
Further, the polyurethane foam of the present invention uses a mixture of a low molecular weight and a high molecular weight polyol, and the change in hardness according to the external temperature is insensitive.
이하, 본 발명의 이해를 돕기 위해 바람직한 실시예를 제시하지만, 하기의 실시예는 본 발명을 보다 쉽게 이해하기 위하여 제공되는 것일 뿐, 본 발명이 이에 한정되는 것은 아니다. Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following embodiments are provided for the purpose of easier understanding of the present invention, but the present invention is not limited thereto.
실시예Example 1 One
폴리프로필렌 글리콜(바스프사, 10kg), 촉매로 터셔리 아민(헌츠만사, 10g), 파우더 상태의 라텍스(상하이켐사, RZ5, 2kg), 실리콘 정포제(모멘티브사 50g)물을 혼합하였다. 이때 물의 함량을 폴리올 대비 1중량이 되도록 조정하였다. 혼합용액을 약 30초간 교반 속도를 6000rpm까지 단계적으로 증가시키면서 교반하였다. 얻어진 혼합물에 폴리이소시아네이트를 첨가하여 6000rpm에서 약 30초간 교반하였다. Water was mixed with polypropylene glycol (BASF Corp., 10 kg), catalyst rotamerine (Huntsman, 10 g), powdered latex (Shanghai Chemsa, RZ5, 2 kg) and silicone foam stabilizer (Momentiva 50 g). At this time, the content of water was adjusted to be 1 weight of the polyol. The mixed solution was stirred for about 30 seconds while gradually increasing the stirring speed to 6000 rpm. Polyisocyanate was added to the resulting mixture, and the mixture was stirred at 6000 rpm for about 30 seconds.
얻어진 혼합물을 1500 × 2000 × 0.05 m 크기의 몰드에 부어 발포 성형을 실시하여 약 8분간 경화시킨 후, 탈형하였으며, 이때 몰드 온도는 60℃로 균일하게 유지하여, 침대매트릭스용 폴리우레탄 발포체를 제조하였다.The resultant mixture was poured into a mold having a size of 1500 x 2000 x 0.05 m, followed by foaming, curing for about 8 minutes, and demolding. At this time, the mold temperature was uniformly maintained at 60 ° C to prepare a polyurethane foam for a bed matrix .
상기 실시예 1에서 수득한 침대용 매트릭스 발포체를 하기 표의 실험항목으로 테스트하고 이를 표 1에 나타내었다.The matrix foam foams obtained in Example 1 above were tested with the following experimental items and are shown in Table 1 below.
또한, 상기 실시예 1에서 수득한 침대용 매트릭스 발포체에 대해 온도변화에 따른 경도 변화 추이(Asker 경도계로 표면 경도 변화 측정함)를 하기 표 2에 나타내었다. 비교예 1은 tempur사(일본), 비교예 2는 JS 산업(대한민국)의 메모리폼을 각각 구입하여 테스트하였다. Table 2 shows changes in hardness with respect to the temperature change (measurement of surface hardness change with Asker hardness meter) of the matrix foam foams obtained in Example 1 above. Comparative Example 1 was purchased from tempur (Japan), and Comparative Example 2 was purchased from JS Industries (Korea) and tested.
표 2를 참고하면, 실시예 1은 비교예 1 및 2에 비해 경도 변화가 거의 없음을 확인할 수 있다. Referring to Table 2, it can be confirmed that the hardness of Example 1 is almost the same as that of Comparative Examples 1 and 2.
본 발명의 단순한 변형 내지 변경은 모두 본 발명의 영역에 속하는 것으로, 본 발명의 구체적인 보호범위는 첨부된 특허청구범위에 의하여 명확해질 것이다.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (4)
폴리이소시아네이트 30~40중량부, 물 1~3중량부, 실리콘 정포제 0.5~1 중량부, 촉매 0.1~0.2 중량부, 라텍스 파우더 20~25 중량부를 포함하는 것을 특징으로 하는 폴리우레탄 발포체 조성물.Polyol, 100 parts by weight of the polyol
30 to 40 parts by weight of a polyisocyanate, 1 to 3 parts by weight of water, 0.5 to 1 part by weight of a silicone foam stabilizer, 0.1 to 0.2 parts by weight of a catalyst and 20 to 25 parts by weight of a latex powder.
상기 발포체는 그 내부에 분산되어 존재하는 라텍스 파우더 및 셀 내부를 관통하는 에어터널을 구비하고,
상기 발포체 두께가 5~10cm범위인 것을 특징으로 하는 매트릭스용 폴리우레탄 발포체.
A polyurethane foam produced using the composition of any one of claims 1 to 3,
Wherein the foam has a latex powder dispersed therein and an air tunnel passing through the inside of the cell,
Wherein the foam has a thickness in the range of 5 to 10 cm.
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| KR940021607A (en) * | 1993-03-11 | 1994-10-19 | 윤양중 | Polyurethane foam with improved physical properties |
| JP3226126B2 (en) * | 1993-03-22 | 2001-11-05 | 電気化学工業株式会社 | Two-part foamed polyurethane foam composition |
| US5686501A (en) * | 1996-04-19 | 1997-11-11 | Foamex L.P. | Breathable open cell urethane polymers |
| TW568921B (en) * | 1998-08-07 | 2004-01-01 | Huntsman Int Llc | Process for preparing a moulded flexible polyurethane foam |
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2012
- 2012-11-13 KR KR1020120128201A patent/KR101412506B1/en active IP Right Grant
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