KR100586612B1 - Manufacture method of flexible polyurethane foams containing graphite - Google Patents

Manufacture method of flexible polyurethane foams containing graphite Download PDF

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KR100586612B1
KR100586612B1 KR1020050021699A KR20050021699A KR100586612B1 KR 100586612 B1 KR100586612 B1 KR 100586612B1 KR 1020050021699 A KR1020050021699 A KR 1020050021699A KR 20050021699 A KR20050021699 A KR 20050021699A KR 100586612 B1 KR100586612 B1 KR 100586612B1
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stream line
polyol
tdi
minute
rpm
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강동석
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주식회사 세림티티시
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    • 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
    • C08G18/08—Processes
    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
    • C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
    • C08G18/4252—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids derived from polyols containing polyether groups and polycarboxylic acids
    • 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
    • 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
    • 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
    • C08J9/06—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 chemical blowing agent
    • C08J9/065—Hydrides or carbides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds

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  • 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)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

본 발명은 흑연을 함유하는 연질용 폴리우레탄 발포체의 발포체의 제조방법에 관한 것으로, 그 구성은 (a) 열팽창 흑연을 연질의 폴리에테르 폴리올에 투입하는 단계와, (b) 3분간 4000 rpm 의 회전수로 상기 흑연과 폴리올을 배합하는 단계와, (c) 첨가형 원료인 유기 액상 인-염소계로 이루어진 난연제와 가교제와 정포제를 1분간 배합하는 단계와, (d) 상기 원료를 폴리올 스트림 라인(Polyol-Stream Line)에 투입하여 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계와, (e) 보조발포제와 촉매화합물을 상기 폴리올 스트림 라인에 투입하여 또 다시 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계와, (f) TDI(2.4/2.6-Isomer = 80/20% 용액)을 TDI 스트림 라인(TDI-Stream Line)에 채워 넣는 단계와, (g) 상기 폴리올 스트림 라인에 수용된 원료와 TDI 스트림 라인에 수용된 TDI 용액을 몰드(mold)에서 혼합시켜 발포하는 단계를 포함하는 것을 특징으로 하는 것으로서, 가혹한 열화조건 하에서도 지속적인 난연성 및 초기의 기존물성을 그대로 유지하며, 연소시에 유독가스 부분의 발생을 최소화하여 유독가스의 방출을 억제할 수 있으며, 소음을 효과적으로 차단할 수 있는 폴리우레탄 발포체를 제조하는 효과가 있다. The present invention relates to a method for producing a foam of a flexible polyurethane foam containing graphite, the constitution comprising: (a) thermally expanding graphite into a flexible polyether polyol; and (b) a rotation of 4000 rpm for 3 minutes. Blending the graphite and the polyol with water, (c) blending the flame retardant, crosslinking agent, and foaming agent made of an organic liquid phosphorus-chlorine based additive material for 1 minute, and (d) a polyol stream line -Stir and disperse uniformly under mechanical conditions of 750 rpm for 1 minute in a stream line), and (e) co-foaming agent and catalyst compound are added to the polyol stream line for another minute at 750 rpm for 1 minute. Uniformly stirring and dispersing, (f) filling TDI (2.4 / 2.6-Isomer = 80/20% solution) into TDI-Stream Line, (g) into the polyol stream line Accepted Raw Material And TDI And mixing and foaming the TDI solution contained in the stream line in a mold, maintaining continuous flame retardancy and initial existing properties even under severe deterioration conditions, and By minimizing the generation can suppress the emission of toxic gases, there is an effect of producing a polyurethane foam that can effectively block the noise.

Description

흑연을 함유하는 연질용 폴리우레탄 발포체의 제조방법{Manufacture method of flexible polyurethane foams containing graphite} Manufacture method of flexible polyurethane foam containing graphite

도 1은 본 발명의 실시예에 따른 제조방법에 의해서 제조되는 흑연을 함유하는 연질용 폴리우레탄 발포체의 단면도1 is a cross-sectional view of a flexible polyurethane foam containing graphite produced by the manufacturing method according to an embodiment of the present invention.

도 2는 도 1에 도시된 폴리우레탄 발포체의 단위 셀이 개방형임을 설명하기 위한 개념도2 is a conceptual view illustrating that the unit cell of the polyurethane foam shown in FIG. 1 is open

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10. 연질용 폴리우탄 발포체 20. 흑연 10. Soft Polyurethane Foam 20. Graphite

본 발명은 폴리우레탄 발포체의 제조방법에 관한 것으로, 더욱 상세하게는 흑연이 함유된 연질용 폴리우레탄 발포체의 제조방법에 관한 것이다.The present invention relates to a method for producing a polyurethane foam, and more particularly to a method for producing a flexible polyurethane foam containing graphite.

일반적으로 폴리우레탄 발포체는 다포성 또는 스폰지 형의 폴리우레탄 수지로 폴리에스테르 또는 폴리에테르계 폴리올과 2관능 또는 다관능의 디이소시아네이트와 발포체, 촉매 등의 원료 및 각종 첨가제와 혼합 반응시켜서 성형된다. In general, polyurethane foams are polyporous or sponge-type polyurethane resins which are formed by mixing and reacting polyester or polyether-based polyols with difunctional or polyfunctional diisocyanates with raw materials such as foams, catalysts, and various additives.

이러한 혼합 반응에서는 가교반응이 일어나고, 발열하여 결국에는 수지화가 된다. 이러한 반응의 진행 중에 발생하는 이산화탄소 때문에 발포 다공질이 되며, 기계적 강도도 크고, 내열성, 내용제성, 내노화성, 접착성이 양호하며, 원료 조건을 택하는 것에 의해 상당히 연질 탄력성이 있는 것에서 경질 내마모성의 것까지 제조되고 있다. In such a mixing reaction, a crosslinking reaction occurs, generates heat, and eventually becomes resin. Carbon dioxide generated during the course of this reaction becomes porous foam, mechanical strength is high, heat resistance, solvent resistance, aging resistance, adhesion is good, and it is very soft elastic to hard wear resistance by selecting the raw material conditions It is manufactured until.

특히, 그 경도에 따라 연질, 반경질, 경질의 3종류로 나누어진다. 여기서 연질 발포체는 자동차 등의 쿠숀재, 충진재, 필터, 건축내장재, 흡음용 판넬 등으로 사용되고 있고, 반경질 발포체는 열이나 전기의 절연재료로, 경질 발포체는 가볍고, 탄성이 적으며, 하중부담능력이 크고 단열성도 우수하여 항공기 및 기계부품재료, 공업용 및 가정용 단열재료와 방음판 등으로 널리 이용되고 있다. In particular, it is divided into three types according to its hardness: soft, semi-hard, and hard. The soft foam is used as cushion materials, fillers, filters, building interior materials, sound absorbing panels, etc. for automobiles, and the semi-rigid foam is an insulating material of heat or electricity. The rigid foam is light, has low elasticity, and has a load-bearing ability Its large size and excellent heat insulation make it widely used in aircraft and machine parts, industrial and household insulation materials, and soundproof panels.

특히 요즈음에는 저반발탄성을 가지는 메모리 폼(memory foam)이 개발되어 어떤 변형에서 아주 느린 회복성을 가지므로 에너지 흡수성이 양호하고 하중 분상성이 높은 특성으로 인하여, 인체의 머리를 받치는 베개에 이용되기도 한다.In particular, memory foam having low rebound elasticity has been developed in recent years, and has a very slow recovery from deformation, so it has good energy absorption and high load repellency, so it can be used for pillows that support the human head. do.

더욱이, 각종 시설물에, 예를 들어 건축내장재나 판넬 등에 사용되는 연질 폴리우레탄 발포체가 화재에 노출될 때 잘 연소되지 않도록 하는 난연성 폴리우레탄 발포체가 개발된 바 있다. Moreover, flame retardant polyurethane foams have been developed in various facilities, for example, flexible polyurethane foams used for building interior materials, panels, etc. do not burn well when exposed to fire.

그러나, 종래의 연질용 폴리우레탄 발포체는 연기와 화염에 견딜 수 있는 난연성 폴리우레탄 발포체가 개발된 바 있으나, 지속적인 난연성을 유지하기가 힘들었고 지속적으로 열에 노출됨으로써 기존 물성을 그대로 유지하기가 힘들었다는 문제점이 있었다. However, the conventional flexible polyurethane foam has been developed a flame-retardant polyurethane foam that can withstand smoke and flames, but it was difficult to maintain a continuous flame retardancy and difficult to maintain the existing properties as it is continuously exposed to heat there was.

또한, 종래의 난연성 폴리우레탄 발포체는 화재로 인하여 연소 시에 유독가 스의 발생을 방지할 수 없어서 인명의 피해를 막을 수 없다는 단점이 있었으며, 소음을 차단하는 효과가 없다는 단점이 있었다. In addition, the conventional flame-retardant polyurethane foam has the disadvantage that it can not prevent the generation of toxic gas during combustion due to the fire can not prevent the damage of life, there is a disadvantage that there is no effect to block the noise.

본 발명은 상기한 바와 같은 제반 문제점을 해결하기 위하여 제안된 것으로, 그 목적은 가혹한 열화조건 하에서도 지속적인 난연성 및 초기의 기존물성을 그대로 유지하며, 연소시에 유독가스 부분의 발생을 최소화하여 유독가스의 방출을 억제할 수 있으며, 소음을 효과적으로 차단할 수 있는 흑연을 함유하는 연질용 폴리우레탄 발포체를 제공함에 있다. The present invention has been proposed to solve the above-mentioned problems, the object of which is to maintain a continuous flame retardancy and initial existing properties as it is, even under severe deterioration conditions, and to minimize the generation of toxic gas parts during combustion, toxic gas To provide a soft polyurethane foam containing graphite that can suppress the emission of, and can effectively block the noise.

상기와 같은 목적을 달성하기 위한 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 제조방법은, (a) 열팽창 흑연을 연질의 폴리에테르 폴리올에 투입하는 단계와, (b) 3분간 4000 rpm 의 회전수로 상기 흑연과 폴리올을 배합하는 단계와, (c) 첨가형 원료인 유기 액상 인-염소계로 이루어진 난연제와 가교제와 정포제를 1분간 배합하는 단계와, (d) 상기 원료를 폴리올 스트림 라인(Polyol-Stream Line)에 투입하여 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계와, (e) 보조발포제와 촉매화합물을 상기 폴리올 스트림 라인에 투입하여 또 다시 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계와, (f) TDI(2.4/2.6-Isomer = 80/20% 용액)을 TDI 스트림 라인(TDI-Stream Line)에 채워 넣는 단계와, (g) 상기 폴리올 스트림 라인에 수용된 원료와 TDI 스트림 라인에 수용된 TDI 용액을 몰드(mold)에서 혼합시켜 발포하는 단계를 포함하 는 것을 특징으로 한다. Method for producing a flexible polyurethane foam containing graphite according to an embodiment of the present invention for achieving the above object, the step of (a) injecting thermally expanded graphite into a soft polyether polyol, and (b) 3 Blending the graphite and the polyol at a rotational speed of 4000 rpm for one minute; Uniformly stirring and dispersing at a mechanical condition of 750 rpm for 1 minute in a polyol stream line, and (e) adding an auxiliary foaming agent and a catalyst compound to the polyol stream line for another 1 minute at 750 rpm. uniformly stirring and dispersing under mechanical conditions of rpm, (f) filling TDI (2.4 / 2.6-Isomer = 80/20% solution) into TDI-Stream Line, (g) On the polyol stream line By mixing the TDI solution accommodated in yongdoen material and TDI stream line in the mold (mold) it is characterized in that including a step of foaming.

이하, 본 발명의 바람직한 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 제조방법을 첨부된 도면에 의거하여 상세히 설명한다.Hereinafter, a method for producing a flexible polyurethane foam containing graphite according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지 도 2는 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 제조방법을 도시한 것으로서, 도 1은 본 발명의 실시예에 따른 제조방법에 의해서 제조되는 흑연을 함유하는 연질용 폴리우레탄 발포체의 단면도를, 도 2는 도 1에 도시된 폴리우레탄 발포체의 단위 셀이 개방형임을 설명하기 위한 개념도를 각각 나타낸 것이다. 1 to 2 show a method for producing a flexible polyurethane foam containing graphite according to an embodiment of the present invention, Figure 1 containing graphite prepared by the manufacturing method according to an embodiment of the present invention. 2 is a cross-sectional view of the flexible polyurethane foam, Figure 2 shows a conceptual view for explaining that the unit cell of the polyurethane foam shown in Figure 1 is an open type.

상기 도 1 내지 도 2에 도시된 바와 같이, 본 발명의 실시예에 따른 제조방법으로 제조되는 흑연을 함유하는 연질용 폴리우레탄 발포체(100)는 우레탄층(10)과 흑연(20)을 포함하고 있다.As shown in FIGS. 1 and 2, the flexible polyurethane foam 100 containing graphite produced by the manufacturing method according to the embodiment of the present invention includes a urethane layer 10 and graphite 20. have.

상기 우레탄층(10)은 연질의 폴리우레탄 발포체를 말하는 것으로 본 실시예에서는 개방형 폴리우레탄 발포체로 구비되어 있다. The urethane layer 10 refers to a flexible polyurethane foam and is provided as an open polyurethane foam in this embodiment.

상기 우레탄층(10)은 그 폴리우레탄을 이루는 단위 셀(cell)에 가스를 주입한 뒤 이를 점화시켜 상기 단위 셀에 형성되어 있는 막을 파괴하여 그 단위 셀이 오픈(open)된 구조를 가지도록 한 것이다. The urethane layer 10 injects gas into a unit cell constituting the polyurethane and ignites it to destroy the film formed in the unit cell so that the unit cell has an open structure. will be.

즉, 도 2에 도시된 바와 같이, 폴리우레탄의 단위 셀의 구조는 육각형으로 형성된 얇은 두께를 가지는 외형에 막이 형성되어 있는 구조를 갖는다. 이러한 구조를 가지는 단위 셀에 수소와 산소와 질소를 주입하고 이를 점화시켜 폭발시킨다. 이 폭발력으로 상기 단위 셀에 형성된 막이 파괴되면서 주입된 가스가 방출되어 오 픈 셀이 형성되는 것이다. That is, as shown in Figure 2, the structure of the unit cell of the polyurethane has a structure in which a film is formed on the outer shape having a thin thickness formed in a hexagon. Hydrogen, oxygen, and nitrogen are injected into the unit cell having this structure and ignited to explode. The explosive force destroys the film formed in the unit cell and releases the injected gas to form an open cell.

상기 흑연(20)은 상기 우레탄층(10)에 내재되며, 상기 우레탄층(10)의 내부에 분산되어 있다. The graphite 20 is embedded in the urethane layer 10 and is dispersed in the urethane layer 10.

따라서, 상기 오픈 셀의 형태에 의해서 소음이 효과적으로 차단이 되며, 상기 우레탄층(10)에 내재된 흑연(20)에 의해서 난연성이 효과적으로 발휘되고 화재 시에도 그 물성이 변하지 않으며 유독가스의 발생이 방지되는 것이다. Therefore, the noise is effectively blocked by the shape of the open cell, the flame retardancy is effectively exhibited by the graphite 20 embedded in the urethane layer 10, its physical properties do not change even in the event of fire and the generation of toxic gas is prevented. Will be.

도 3a 및 도 3b에 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 소방법 맥켈버너법 & JIS-Z-1320(A) 시험결과인 시험성적서를 나타내었다. 본 시험은 한국원사직물시험연구원에서 행해졌으며, 시험결과는 방염성이 합격이라는 것을 알 수 있다. 3A and 3B show a test report showing the results of the McKelburner method and JIS-Z-1320 (A) test results of the flexible polyurethane foam containing graphite according to the embodiment of the present invention. This test was conducted by Korea Yarn Textile Testing Institute, and it can be seen that the test result is flame retardant.

그리고, 도 4에 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 건축용 얇은 재료 난연시험(KSF 2819) 시험결과인 시험성적서를 나타내었다. 본 시험은 한국화재보험협회부설 방재시험연구원에서 행해졌으며, 시험결과는 난연성이 방염1급임을 알 수 있다. In addition, Figure 4 shows the test report of the results of the thin material flame retardant test (KSF 2819) for construction of the flexible polyurethane foam containing graphite according to an embodiment of the present invention. This test was conducted by the Korea Fire Insurance Association's Disaster Prevention Testing Institute. The test results show that flame retardant is first-class flame retardant.

그리고, 도 5a, 5b, 5c에 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체의 가스독성지수(BS 6853 Annex,B-2) 시험결과인 시험성적서를 나타내었다. 본 시험은 한국철도연구원에서 행해졌으며, 독성이 거의 없는 것을 볼 수가 있는 것이다. 5A, 5B, and 5C show test reports showing the gas toxicity index (BS 6853 Annex, B-2) test results of the flexible polyurethane foam containing graphite according to the embodiment of the present invention. This test was conducted by the Korea Railroad Research Institute, and it can be seen that there is little toxicity.

또한, 본 발명에 따른 흑연이 함유된 연질용 폴리우레탄 발포체(100)는 그 겉보기 밀도가 20 kg/㎥ 내지 40 kg/㎥ 이므로 건축내장재 및 판넬, 중장비흡음재 등으로 사용하기에 적합한 것이다. In addition, the soft polyurethane foam 100 containing graphite according to the present invention is suitable for use as building interior materials and panels, heavy equipment sound absorbing materials and the like because the apparent density is 20 kg / ㎥ to 40 kg / ㎥.

이하, 본 발명의 실시예에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체를 제조하는 방법에 대해서 설명한다. Hereinafter, the method of manufacturing the flexible polyurethane foam containing graphite which concerns on the Example of this invention is demonstrated.

먼저, 15 % 내지 20 % 범위의 열팽창 흑연을 연질용 폴리에테르 폴리올에 투입한다. First, thermally expanded graphite in the range of 15% to 20% is added to the soft polyether polyol.

이어서, 3 분간 4000 rpm 이상의 회전수를 가지는 믹스로 충분히 균일하게 배합한다. 이러한 배합은 15 ℃ 내지 22 ℃ 의 범위 내에서 이루어진다. Subsequently, it mix | blends uniformly enough by the mix which has rotation speed of 4000 rpm or more for 3 minutes. Such compounding is in the range of 15 ° C to 22 ° C.

이어서, 기타 첨가형 원료인 유기 액상 인-염소계로 이루어진 난연제와 가교제, 정포제 등을 첨가하여 1 분간 배합한다. Next, a flame retardant made of an organic liquid phosphorus-chlorine system, a crosslinking agent, a foam stabilizer, and the like, which are other additive-type raw materials, are added and blended for 1 minute.

이어서, 상기 원료를 폴리올 스트림 라인(Polyol-Stream Line)에 투입하여 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시킨다. Subsequently, the raw material is introduced into a polyol stream line and uniformly stirred and dispersed under a mechanical condition of 750 rpm for 1 minute.

이어서, 미리 준비된 보조발포제와 촉매화합물을 상기 폴리올 스트림 라인에 투입하여 또 다시 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시킨다. Subsequently, the co-foaming agent and the catalyst compound prepared in advance are introduced into the polyol stream line, and then uniformly stirred and dispersed under mechanical conditions of 750 rpm for 1 minute.

이어서, 미리 준비된 TDI(2.4/2.6-Isomer = 80/20% 용액)을 TDI 스트림 라인(TDI-Stream Line)에 채워 넣는다. Subsequently, the TDI (2.4 / 2.6-Isomer = 80/20% solution) prepared in advance is filled in a TDI stream line.

이어서, 상기 폴리올 스트림 라인에 수용된 원료와 TDI 스트림 라인에 수용된 TDI 용액을 몰드(mold)에서 혼합시켜 발포한다. Subsequently, the raw material contained in the polyol stream line and the TDI solution contained in the TDI stream line are mixed and foamed in a mold.

이상에서와 같이 본 발명에 따른 흑연을 함유하는 연질용 폴리우레탄 발포체는, 가혹한 열화조건 하에서도 지속적인 난연성 및 초기의 기존물성을 그대로 유지 하며, 연소시에 유독가스 부분의 발생을 최소화하여 유독가스의 방출을 억제할 수 있으며, 소음을 효과적으로 차단할 수 있는 효과가 있다. As described above, the flexible polyurethane foam containing graphite according to the present invention maintains continuous flame retardancy and initial existing properties even under severe deterioration conditions, and minimizes generation of toxic gas parts during combustion. Emission can be suppressed, and there is an effect that can effectively block the noise.

본 발명은 첨부된 도면에 도시된 일 실시예를 참고로 설명되었으나, 이는 예시적인 것이며, 당해 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 수 있을 것이다. 따라서 본 발명의 진정한 보호범위는 첨부된 청구범위에 의해서만 정해져야 할 것이다. Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is intended to be illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. . Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (1)

(a) 열팽창 흑연을 연질의 폴리에테르 폴리올에 투입하는 단계;(a) introducing thermally expanded graphite into a soft polyether polyol; (b) 3분간 4000 rpm 의 회전수로 상기 흑연과 폴리올을 배합하는 단계;(b) blending the graphite and polyol at a rotational speed of 4000 rpm for 3 minutes; (c) 첨가형 원료인 유기 액상 인-염소계로 이루어진 난연제와 가교제와 정포제를 1분간 배합하는 단계;(c) blending a flame retardant made of an organic liquid phosphorus-chlorine based additive material, a crosslinking agent and a foam stabilizer for one minute; (d) 상기 원료를 폴리올 스트림 라인(Polyol-Stream Line)에 투입하여 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계;(d) uniformly stirring and dispersing the raw material into a polyol stream line for 1 minute at a mechanical condition of 750 rpm; (e) 보조발포제와 촉매화합물을 상기 폴리올 스트림 라인에 투입하여 또 다시 1 분간 750 rpm 의 기계적 조건으로 균일하게 교반, 분산시키는 단계;(e) adding a co-foaming agent and a catalyst compound to the polyol stream line, and then uniformly stirring and dispersing at a mechanical condition of 750 rpm for 1 minute; (f) TDI(2.4/2.6-Isomer = 80/20% 용액)을 TDI 스트림 라인(TDI-Stream Line)에 채워 넣는 단계;(f) filling TDI (2.4 / 2.6-Isomer = 80/20% solution) into TDI-Stream Line; (g) 상기 폴리올 스트림 라인에 수용된 원료와 TDI 스트림 라인에 수용된 TDI 용액을 몰드(mold)에서 혼합시켜 발포하는 단계를 포함하는 것을 특징으로 하는 흑연이 함유된 연질용 폴리우레탄 발포체의 제조방법. (g) mixing the foamed raw material contained in the polyol stream line and the TDI solution contained in the TDI stream line in a mold and foaming the graphite-containing soft polyurethane foam.
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KR101765708B1 (en) * 2015-06-30 2017-08-08 한국건설기술연구원 Non-combustible Material of Organic Open Cell Foam, Method for Manufacturing the Non-combustible Material, And Non-combustible Panel Using the Non-combustible Material

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