KR100602205B1 - Method for producing non-inflammable pre-expanded polystyrene beads that keeps its shape when it burnt containing expandable graphite - Google Patents

Method for producing non-inflammable pre-expanded polystyrene beads that keeps its shape when it burnt containing expandable graphite Download PDF

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KR100602205B1
KR100602205B1 KR1020040108392A KR20040108392A KR100602205B1 KR 100602205 B1 KR100602205 B1 KR 100602205B1 KR 1020040108392 A KR1020040108392 A KR 1020040108392A KR 20040108392 A KR20040108392 A KR 20040108392A KR 100602205 B1 KR100602205 B1 KR 100602205B1
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resin
polystyrene foam
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KR20060069721A (en
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이병운
이석원
이진희
김승수
김정호
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금호석유화학 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • 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
    • C08J9/08—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 developing carbon dioxide
    • 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
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene
    • C08J2425/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

본 발명은 불연성을 갖는 난연 폴리스티렌 발포체 수지입자의 제조방법에 관한 것으로, 더욱 상세하게는 종래의 현탁 중합 기술에 의해 얻어진 발포 폴리스티렌 수지 입자를 일정 비중까지 발포시킨 폴리스티렌 발포입자에, 상기 발포입자 100 중량부에 대해서 층상의 결정구조를 가지면서 가열되면 본래의 크기보다 20 배에서 350 배까지 발포되는 팽창흑연 입자 2 - 30 중량부, 그리고 열경화성 수지 10 - 300 중량부, 및 이 열경화성 수지의 경화도를 조정하는 촉매를 열경화성 수지 100 중량부에 대해서 0.02 - 30 중량부 피막 코팅하여, 연소시 다공성 Char(탄화코어)의 형성에 의해 불연성을 갖게 되는 난연 폴리스티렌 발포체 수지입자의 제조방법에 관한 것이다.The present invention relates to a method for producing non-flammable flame retardant polystyrene foam resin particles, and more specifically, to the polystyrene foam particles obtained by foaming expanded polystyrene resin particles obtained by a conventional suspension polymerization technique to a certain specific gravity, the weight of the foam particles 100 2 to 30 parts by weight of expanded graphite particles, which are foamed 20 to 350 times larger than the original size when heated with a layered crystal structure, and 10 to 300 parts by weight of the thermosetting resin, and the degree of curing of the thermosetting resin is adjusted. The present invention relates to a method for producing a flame-retardant polystyrene foam resin particle which is coated with 0.02-30 parts by weight with respect to 100 parts by weight of a thermosetting resin and becomes nonflammable by formation of a porous char (carbide core) during combustion.

Description

팽창흑연을 함유한 불연성 난연 폴리스티렌 발포체 수지입자의 제조방법{METHOD FOR PRODUCING NON-INFLAMMABLE PRE-EXPANDED POLYSTYRENE BEADS THAT KEEPS ITS SHAPE WHEN IT BURNT CONTAINING EXPANDABLE GRAPHITE} METHODS FOR PRODUCING NON-INFLAMMABLE PRE-EXPANDED POLYSTYRENE BEADS THAT KEEPS ITS SHAPE WHEN IT BURNT CONTAINING EXPANDABLE GRAPHITE}

본 발명은 불연성을 갖는 난연 폴리스티렌 발포체 수지입자의 제조방법에 관한 것으로서, 더욱 상세하게는 폴리스티렌 발포입자에 팽창흑연, 열경화성 수지, 및 경화촉매를 코팅, 경화시켜 불연성 난연 폴리스티렌 발포체 수지입자를 제조하는 방법에 관한 것이다.The present invention relates to a method for producing non-flammable flame retardant polystyrene foam resin particles, and more particularly to a method of manufacturing non-flammable flame retardant polystyrene foam resin particles by coating and curing expanded graphite, thermosetting resin, and a curing catalyst on polystyrene foam particles. It is about.

폴리스티렌 발포체의 내열성 및 난연성을 향상시키기 위한 방안으로서, 폴리스티렌 발포체 입자를 내열성 또는 난연성 물질로 코팅 처리하여, 내열성 및 난연성을 가지는 폴리스티렌 발포체 수지입자를 제조하는 방법들이 개발되어 왔다. As a method for improving the heat resistance and flame retardancy of polystyrene foam, a method of manufacturing polystyrene foam resin particles having heat resistance and flame retardancy by coating polystyrene foam particles with a heat resistant or flame retardant material has been developed.

일본특허 JP2001-164031A호에서는 내열, 난연성를 가지는 다공성 성형체를 제조하기 위해서, 다공성을 갖는 발포수지에 붕소계 무기화합물과 열경화성수지의 혼합물을 피복시키는 방법을 개시하고 있다. 이러한 방법은 다공성 발포수지에 내화성 및 소염성, 형태 보존성을 제공한다는 측면에서는 일정한 효과를 제공하고 있 으나, 코팅 혼합물의 주성분으로서 붕산과 같은 붕소계 무기 화합물을 사용하고, 또 이외에 그라스 섬유, 탄소섬유, 실리카, 탈크와 같은 무기 분체립 등을 사용함으로써, 코팅된 발포 입자의 건조과정, 성형과정에서 첨가된 무기 화합물들이 쉽게 이탈되는 문제를 야기하였다. 인체에 유해한 이러한 무기물의 이탈은 작업성의 저하를 야기하고 이와 더불어 난연 효과의 저하를 야기하게 된다.Japanese Patent JP2001-164031A discloses a method of coating a mixture of a boron-based inorganic compound and a thermosetting resin in a porous foamed resin in order to produce a porous molded body having heat resistance and flame resistance. This method has a certain effect in terms of providing fire-resistant, anti-inflammatory and form-preservation properties to the porous foam resin, but using a boron-based inorganic compound such as boric acid as the main component of the coating mixture, in addition to glass fiber, carbon fiber By using inorganic powder granules such as silica and talc, the inorganic compounds added during drying and molding of the coated foam particles are easily released. Departure of these minerals, which are harmful to the human body, causes deterioration of workability and deterioration of the flame retardant effect.

한편, 난연 폴리스티렌 발포체 개발에 팽창흑연을 도입하는 방안들이 개발되어 왔다. 일예로, US 6,420,442 B1 호에는 팽창흑연을 사용한 난연 폴리스티렌 발포체 기술을 기재하고 있는데, 폴리스티렌 압출보드(XPS)에 팽창흑연과 인계 난연제를 도입하여 난연 효과를 나타내는 방법이다. 그러나 본 발명에서처럼 폴리스티렌 발포수지입자에 팽창흑연 및 열경화성 수지를 피막 코팅하여 제공하는 방식이 아니다Meanwhile, methods for introducing expanded graphite in the development of flame retardant polystyrene foam have been developed. For example, US Pat. No. 6,420,442 B1 describes a flame retardant polystyrene foam technology using expanded graphite, which is a method of introducing a flame retardant by introducing expanded graphite and a phosphorus flame retardant in a polystyrene extrusion board (XPS). However, as in the present invention, the polystyrene foam resin particles are not provided with a coating film of expanded graphite and a thermosetting resin.

따라서, 산업계에서는 붕산과 같은 무기 화합물의 사용으로 인한 상기 문제점들을 극복할 수 있으면서도, 동일한 난연 효과를 발휘할 수 있는 난연 폴리스티렌 발포체 수지 입자의 제조방법에 대한 요구가 계속되어 왔다.Therefore, there has been a continuing demand for a method for producing flame retardant polystyrene foam resin particles which can exhibit the same flame retardant effect while overcoming the above problems caused by the use of an inorganic compound such as boric acid.

본 발명의 목적은 팽창 흑연을 포함하는 불연성의 신규한 난연 폴리스티렌 발포입자의 제조방법을 제공하는 것이다. It is an object of the present invention to provide a method for producing a nonflammable novel flame retardant polystyrene foam particle comprising expanded graphite.

본 발명의 다른 목적은 폴리스티렌 발포체 입자에 팽창흑연, 열경화성 수지, 및 경화촉매를 코팅, 경화시켜 불연성의 신규한 난연 폴리스티렌 발포입자를 제조 하는 방법을 제공하는 것이다. It is another object of the present invention to provide a method for producing a non-flammable novel flame retardant polystyrene foam particles by coating and curing expanded graphite, thermosetting resin, and a curing catalyst on the polystyrene foam particles.

본 발명의 다른 목적은 폴리스티렌 발포체 입자에 팽창흑연, 열경화성 수지, 및 경화촉매를 코팅, 경화시켜 제조되는 신규한 난연 폴리스티렌 발포입자를 이용한 판넬의 제조방법을 제공하는 것이다. Another object of the present invention is to provide a method for producing a panel using a novel flame-retardant polystyrene foam particles prepared by coating and curing expanded graphite, thermosetting resin, and a curing catalyst on the polystyrene foam particles.

본 발명의 다른 목적은 폴리스티렌 발포체 입자에 팽창흑연, 열경화성 수지, 및 경화촉매가 코팅, 경화된 신규한 난연 폴리스티렌 발포입자를 제공하는 것이다. It is another object of the present invention to provide novel flame retardant polystyrene foam particles in which the polystyrene foam particles are coated and cured with expanded graphite, a thermosetting resin, and a curing catalyst.

본 발명의 다른 목적은 폴리스티렌 발포체 입자에 팽창흑연, 열경화성 수지, 및 경화촉매를 코팅, 경화시킴으로서 제조되는 신규한 난연 폴리스티렌 발포입자를 이용한 판넬을 제공하는 것이다. Another object of the present invention is to provide a panel using the novel flame retardant polystyrene foam particles prepared by coating and curing expanded graphite, thermosetting resin, and a curing catalyst on the polystyrene foam particles.

상기 목적을 이루기 위하여 본 발명은 폴리스티렌 발포입자 100 중량부에 대해, 팽창흑연 2 - 30 중량부, 열경화성 수지 10 - 300 중량부, 그리고 열경화성수지 100중량부에 대해서 경화 촉매 0.02 - 30중량부를 코팅, 가교 시키는 것을 특징으로 하는 난연 폴리스티렌 발포체 수지입자의 제조 방법으로 이루어진다In order to achieve the above object, the present invention is based on 100 parts by weight of polystyrene foam particles, 2 to 30 parts by weight of expanded graphite, 10 to 300 parts by weight of thermosetting resin, and 0.02 to 30 parts by weight of curing catalyst based on 100 parts by weight of thermosetting resin, It consists of the manufacturing method of a flame-retardant polystyrene foam resin particle characterized by crosslinking.

본 발명에 있어서, 상기 폴리스티렌 발포입자는 발포성 폴리스티렌 수지입자의 발포에 의해서 이루어진다. 발명의 실시에 있어서, 상기 발포성 폴리스티렌 수지입자는 공지된 다양한 방법, 일 예로 유화 중합법, 또는 현탁 중합법 등을 이용하여 제조될 수 있다. 현탁 중합법에 의해 제조된 구상의 발포성 폴리스티렌 입자를 이용하는 것이 바람직하다. 발명의 일 실시예에 있어서, 상기 발포성 폴리스티 렌 수지입자는 중합 공정상에서 소량의 난연제가 첨가된 발포성 폴리스티렌 수지입자를 사용해도 좋고, 또한 난연제가 첨가 되지 않은 발포성 폴리스티렌 수지 입자를 사용해도 무방하다.In the present invention, the polystyrene foam particles are made by foaming of expandable polystyrene resin particles. In the practice of the invention, the expandable polystyrene resin particles may be prepared using a variety of known methods, for example, emulsion polymerization, or suspension polymerization. It is preferable to use spherical expandable polystyrene particles produced by the suspension polymerization method. In one embodiment of the invention, the expandable polystyrene resin particles may be used in the polymerization process, the foamed polystyrene resin particles to which a small amount of flame retardant is added, or the expandable polystyrene resin particles may not be used.

본 발명에 있어서, 상기 폴리스티렌 발포입자를 얻기 위해서, 발포성 폴리스티렌 입자를 발포하는 방법은 당업자에게 공지되어 있다. 발포된 폴리스티렌 발포입자의 비중은 사용되는 용도에 따라서 조절될 수 있으나, 0.03 - 0.010 으로 유지하는 것이 바람직하다.In the present invention, in order to obtain the polystyrene foam particles, a method for foaming the expandable polystyrene particles is known to those skilled in the art. The specific gravity of the expanded polystyrene foam particles may be adjusted according to the intended use, but is preferably maintained at 0.03 to 0.010.

본 발명에 있어서, 상기 팽창흑연은 열에 의해 함유하고 있는 물과 산화 화합물이 가스를 발생하여, 그 결과 비늘조각 모양의 흑연이 팽창하여 열이나 화학품에 안정된 층을 형성함 에 따라 고체상 Char 방식으로 난연 효과를 나타낸다. 본 발명의 팽창흑연은 할로겐이 없는 고체 상태를 형성하는 난연제이기 때문에 발연성을 낮게 억제할 수 있어 환경적으로 바람직한 재료이며, 또한 무기물의 주요 문제점인 이탈문제와 이에 의한 난연성 저하문제를 해결하기에 바람직하다.In the present invention, the expanded graphite is a flame retardant in the solid phase Char method as the water containing the heat and the oxidizing compound generates a gas, and as a result the scaly graphite expands to form a stable layer to heat or chemicals Effect. Since the expanded graphite of the present invention is a flame retardant to form a halogen-free solid state, it is possible to suppress the low smoke, and is an environmentally preferable material, and also to solve the problem of separation and deterioration in flame retardancy, which are major problems of inorganic materials. desirable.

본 발명에 있어서, 상기 팽창흑연은 연소의 억제 효과와 성형체의 융착성 및 물리적 특성의 저하를 막기 위해, 팽창 흑연 입자를 발포립자 100 중량부에 2 - 30 중량부 사용하는 것이 바람직하다. 상기 연소 억제효과와 성형체의 융착성을 유지하는한 통상의 팽창흑연은 사용할 수 있다. 발명의 바람직한 일 실시예에서, 보다 양호한 융착성을 위해서 상기 팽창흑연은 밀도가 1.5 - 2.3g/cm³, 입자경이 30 - 1000미크롬(㎛) , 팽창율이 20 - 350배 범위의 팽창 흑연 입자를 사용하는 것이 더 욱 바람직하다. 상기 팽창흑연은 상업적으로 이용가능하다. In the present invention, the expanded graphite is preferably used 2 to 30 parts by weight of expanded graphite particles in 100 parts by weight of the expanded particles in order to prevent the effect of suppressing combustion, deterioration of the fusion properties and physical properties of the molded body. As long as the combustion inhibiting effect and the fusion of the molded body are maintained, ordinary expanded graphite can be used. In one preferred embodiment of the invention, the expanded graphite is expanded graphite particles having a density of 1.5 to 2.3 g / cm³, particle diameter of 30 to 1000 microns (μm), expansion ratio of 20 to 350 times It is more preferable to use. The expanded graphite is commercially available.

본 발명에 있어서, 상기 열경화성 수지는 최종 제품의 융착성과 가공성을 유지할 수 있도록,폴리스티렌 발포입자 100 중량부에 대해서, 10 - 300 중량부를 사용하는 것이 바람직하다. 만약 사용량이 10 중량부 미만이면 피막코팅 효율이 떨어져 충분한 바인더 역할을 할 수 없으며 300 중량부 이상 사용하게 되면 발포립간 뭉침 현상으로 이송 및 성형상에 문제가 발생할 수 있다. In the present invention, the thermosetting resin is preferably used 10 to 300 parts by weight based on 100 parts by weight of polystyrene foam particles in order to maintain the fusion and workability of the final product. If the amount is less than 10 parts by weight of the coating coating efficiency is not enough to act as a binder, when used more than 300 parts by weight may cause problems in the transfer and molding due to agglomeration between the foam granules.

본 발명에 있어서, 상기 열경화성 수지는 발포립자에 코팅 되었을 때 발포립자간 서로 뭉치는 현상과 이로 인해 성형체의 충진 불량 및 융착 불량이 발생하는 것을 방지하기 위해서, 저점성의 열경화성 수지를 사용하는 것이 바람직하다. 발명의 바람직한 일 실시예에 있어서, 상기 저점성 열경화성 수지는 수용성 액상 페놀수지, 또는 유용성 액상 페놀 수지이며, 보다 바람직하게는 불휘발분이 25 - 85%인 수용성 또는 유용성 액상 페놀수지이다. In the present invention, when the thermosetting resin is coated on the foamed granules, in order to prevent agglomeration of the foamed particles from each other and the resulting filling and fusion defects of the molded body, it is preferable to use a low viscosity thermosetting resin. . In a preferred embodiment of the invention, the low-viscosity thermosetting resin is a water-soluble liquid phenol resin or an oil-soluble liquid phenol resin, more preferably a water-soluble or oil-soluble liquid phenol resin having a nonvolatile content of 25 to 85%.

본 발명에 있어서, 상기 경화 촉매로는 발포입자 100 중량부에 대해서, 0.02 - 30 중량부 사용하는 것이 좋다. 만약 사용량이 0.02 중량부 이하이면 경화되는 반응속도가 너무 느리게 진행되어 본 발명에서 얻을 수 있는 효과가 없으며, 30중량부 이상 사용하게 되면 경화의 반응 속도가 너무 빨리 진행되어 열경화성수지의 바인더 효율이 떨어진다. 상기 열경화성 수지의 경화촉매는 염화암모늄, 메탄 설폰산, 페놀 설폰산, p-톨루엔 설폰산, 인산 등을 이용할 수 있다. In the present invention, it is preferable to use 0.02-30 parts by weight based on 100 parts by weight of the foamed particles as the curing catalyst. If the amount is less than 0.02 parts by weight, the reaction rate to be cured is too slow to achieve the effect of the present invention, and when used more than 30 parts by weight, the reaction rate of curing is too fast to decrease the binder efficiency of the thermosetting resin. . As the curing catalyst of the thermosetting resin, ammonium chloride, methane sulfonic acid, phenol sulfonic acid, p-toluene sulfonic acid, phosphoric acid, or the like may be used.

본 발명에 있어서, 상기 코팅은 통상의 코팅 방법을 이용하여 이루어질 수 있으며, 특별한 제한은 없다. 발명의 일 실시예에 있어서, 상기 코팅은, 현탁 중합법에 의해 생성된 발포성 폴리스티렌 수지를 비중 0.03 - 0.010까지 발포시킨 발포립자 100중량부에 팽창흑연 2 - 30 중량부, 열경화성 수지 10 - 300중량부, 그리고 열경화성 수지 100 중량부에 대해서 경화촉매를 0.02 - 30중량부를 혼합하여 교반함으로서 이루어질 수 있다. 상기 혼합액은 동시에 또는 순차적으로 투입되어 교반될 수 있다. In the present invention, the coating can be made using a conventional coating method, there is no particular limitation. In one embodiment of the invention, the coating is 2 to 30 parts by weight of expanded graphite, 10 to 300 parts by weight of expanded graphite particles foamed polystyrene resin produced by suspension polymerization method to a specific gravity of 0.03 to 0.010 And 0.02-30 parts by weight of the curing catalyst with respect to 100 parts by weight of the thermosetting resin. The mixed solution may be added or stirred simultaneously or sequentially.

본 발명에 있어서, 피막 코팅된 발포립자는 촉매 사용량에 따라 건조 온도 및 시간을 조정하여 경화시켜 발포입자를 얻게 된다. 본 발명의 일 실시예에 있어서, 상기 경화과정은 경화 촉매가 투입된 발포립자를 낮게는 35℃ 부터 높게는 70℃ 의 온도로, 짧게는 5분에서부터 길게는 1시간 정도 건조시켜 얻어진다. In the present invention, the film-coated foam particles are cured by adjusting the drying temperature and time according to the amount of catalyst used to obtain foam particles. In one embodiment of the present invention, the curing process is obtained by drying the foamed granules to which the curing catalyst is added at a temperature of as low as 35 ℃ to 70 ℃, as short as 5 minutes to 1 hour.

본 발명에 의해서 얻어진 발포입자는 공지된 판넬 제조 방법등에 의해서 판넬 등의 성형체를 만든다. The expanded particles obtained by the present invention form a molded article such as a panel by a known panel production method or the like.

이러한 성형체는 발포립자의 표층에 균일하고, 단단하게 피막이 코팅되어 성형체의 연소시 피막된 표층으로부터 다공성 Char(탄화코어)에의한 방화층이 즉시 형성되어 불연성을 제공하게 된다. 뿐만 아니라 본 발명에서 적용된 팽창흑연의 연소억제기능과 촉매로 경화된 열경화성 수지의 적정 바인더 기능의 적절한 조합으로 인해 성형체가 화염에 전면으로 받더라도 다공성 Char(탄화코어)에 의한 방화층의 형성으로 즉시 소염되며, 열에 의한 더 이상의 형상붕괴도 일어나지 않게 된다. 이하 실시예를 들어 본 발명을 더욱 상세히 설명한다. 실시예 1 Such a molded article is uniformly and firmly coated on the surface layer of the foamed particles so that a fired layer made of porous Char (carbide core) is immediately formed from the coated surface layer upon combustion of the molded article to provide nonflammability. In addition, due to the proper combination of the combustion inhibiting function of the expanded graphite applied in the present invention and the proper binder function of the thermosetting resin cured with the catalyst, even if the molded body is subjected to the flame in front, it is immediately extinguished by the formation of a fireproof layer by the porous char (carbonized core). And no further shape collapse due to heat occurs. The present invention will be described in more detail with reference to the following Examples. Example 1

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 100배(비중=0.010)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다. 여기에 밀도가 약 2.2 g/cm³ 이고, 입자경이 80-150 미크롬(㎛), 팽창율이 50-80배인 팽창흑연 10g 과 별도의 용기에 수용성 페놀수지 300g(고형분이 78%), p-톨루엔 설폰산 5g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다. 배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막코팅된다. 이렇게하여 얻어진 발포립자를 50℃ 건조기에 5분정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리스티렌 발포체 수지 입자를 얻을 수 있다. 팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스티렌 발포체 수지입자로 건축물의 보온단열재 나 건축물의 패널 단열재로 성형후 건축물의 내장재료 및 구조의 난연성 시험방법(KSF 2271)에 따라 난연 테스트 하였다. 300 g of polystyrene foam granules obtained by pre-expanding the expanded polystyrene resin particles at 100 times (specific gravity = 0.010) with a pressure batch foaming machine are introduced into a 100 L blender equipped with a stirrer and stirred slowly. It has a density of about 2.2 g / cm³, 10 g of expanded graphite with a particle size of 80-150 microns (μm), 50-80 times expansion rate, and 300 g of water-soluble phenolic resin (78% solids) in a separate container, p-toluene Take 5 g of sulfonic acid, mix well, and slowly add to the blender with expanded graphite. When the mixture is stirred at 200 rpm for about 30 minutes in the blender, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 50 ° C. dryer for about 5 minutes, a flame retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained. Polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then tested for flame retardancy according to the test method for flame retardancy of the interior materials and structures of the building (KSF 2271).

그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코어)에 의한 방화층의 형성으로 난연3급에 준하는 불연성을 나타내었다. As a result, even if the flame was received in front, the non-flammable class 3 showed non-combustibility due to the formation of a fireproof layer made of porous char (carbonized core) on the coating of the interior material.

실시예 2 Example 2

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 80배(비중=0.012)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다.여기에 밀도가 약 2.2 g/cm³ 이고 입자경이 200-350 미크롬(㎛), 팽창율이 100-200배인 팽창흑연 15g 과 별도의 용기에 수용성페놀수지 200g(고형분 75%인 페놀수지) , p-톨루엔 설폰산 10g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다.배합에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막코팅된다. 이렇게 하여 얻어진 발포립자를 50℃ 건조기에 5분정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리스티렌 발포체 수지입자를 얻을수 있다.300 g of polystyrene foam granules obtained by pre-expanding the expanded polystyrene resin particles at 80 times (specific gravity = 0.012) with a pressurized batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly, where the density is about 2.2 g / 15 g of expanded graphite with a particle size of 200-350 microns (μm), expansion rate of 100-200 times, and 200 g of water-soluble phenolic resin (phenolic resin with 75% solids) and 10 g of p-toluene sulfonic acid in a separate container. After mixing, the mixture is slowly added to the blender together with expanded graphite. If the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 50 ° C. dryer for about 5 minutes, a flame retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained.

팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스티렌 발포체 수지입자로 건축물의 보온단열재나 건축물의 패널 단열재로 성형 후 건축물의 내장재료 및 구조의 난연성 시험방법(KS F2271)에 따라 난연 테스트 하였다. Polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then flame-retardant test was carried out according to the test method for flame retardancy of the interior materials and structures of the building (KS F2271).

그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코어)에 의한 방화층의 형성으로 난연 3급에 준하는 불연성을 나타내었다. 실시예 3 As a result, even if the flame was received in the front, the non-flammability class 3 was shown by the formation of a fireproof layer made of porous char (carbonized core) on the coating of the interior material. Example 3

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 70배(비중=0.014)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다.여기에 밀도가 약 2.2 g/cm³ , 입자경이 500-650 미크롬(㎛), 팽창율이 200-250배인 팽창흑연 20g 과 별도의 용기에 수용성페놀수지 300g(고형분85%인 페놀수지) , p-톨루엔 설폰산 5g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다. 300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 70 times (specific gravity = 0.014) with a pressurized batch foaming machine are added to a 100L blender equipped with a stirrer and stirred slowly, where the density is about 2.2 g / cm³, particle size 500-650 microns (μm), expanded graphite 20g with 200-250 times expansion, 300g water-soluble phenolic resin (85% solid phenolic resin) and 5g p-toluene sulfonic acid in a separate container. After mixing, slowly add to expander with expanded graphite.

배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립 자에 균일하게 피막코팅된다. 이렇게하여 얻어진 발포립자를 350℃ 건조기에 5분정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리스티렌 발포체 수지입자를 얻을 수 있다.When the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 350 ° C. dryer for about 5 minutes, a flame retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained.

팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스티렌발포체 수지입자로 건축물의 보온단열재 나 건축물의 패널 단열재로 성형후 건축물의 내장재료 및 구조의난연성 시험방법(KS F2271)에 따라 난연 테스트 하였다.Polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then flame-retardant test was carried out according to the test method of the flame retardancy of the interior materials and structures of the building (KS F2271).

그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코어)에 의한 방화층의 형성으로 난연3급에 준하는 불연성을 나타내었다. 실시예 4 As a result, even if the flame was received in front, the non-flammable class 3 showed non-combustibility due to the formation of a fireproof layer made of porous char (carbonized core) on the coating of the interior material. Example 4

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 60배(비중=0.016)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다.여기에 밀도가 약 2.2 g/cm³ 입자경이 750-850 미크롬(㎛), 팽창율이 150-180배인 팽창흑연 30g 과 별도의 용기에 수용성페놀수지 300g (고형분 60%인 페놀수지), p-톨루엔 설폰산 6g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다. 300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 60 times (specific gravity = 0.016) with a pressurized batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly, where the density is about 2.2 g / 30 g of expanded graphite with a particle size of 750-850 microns (μm), 150-180 times expansion rate, and 300 g of water-soluble phenolic resin (60% solid phenolic resin) and 6 g of p-toluene sulfonic acid are mixed well in a separate container. After slowly expanding into the blender with expanded graphite.

배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막 코팅된다. 이렇게 하여 얻어진 발포립자를 50℃ 건조기에 5분 정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리스티렌 발포체 수지입자를 얻을 수 있다.When the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 50 ° C. dryer for about 5 minutes, a flame retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained.

팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스틸렌발포체 수지입자로 건축물의 보온단열재 나 건축물의 패널 단열재로 성형후 건축물의 내장재료 및 구조의 난연성 시험방법(KS F2271)에 따라 난연 테스트 하였다.The polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then tested for flame retardancy according to the test method for flame retardancy of the interior materials and structures of the building (KS F2271).

그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코어)에 의한 방화층의 형성으로 난연3급에 준하는 불연성을 나타내었다. 실시예 5 As a result, even if the flame was received in front, the non-flammable class 3 showed non-combustibility due to the formation of a fireproof layer made of porous char (carbonized core) on the coating of the interior material. Example 5

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 50배(비중=0.025)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다. 여기에 밀도가 약 2.2 g/cm³ 입자경이 750-850 미크롬(㎛), 팽창율이 200-270배인 팽창흑연 70g과 별도의 용기에 수용성페놀수지 400g(고형분 55%인페놀수지) , p-톨루엔 설폰산 6g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다. 배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막코팅된다. 이렇게하여 얻어진 발포립자를 50℃ 건조기에 5분정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리스티렌 발포체 수지입자를 얻을 수 있다. 팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스티렌 발포체 수지입자로 건축물의 보온단열재 나 건축물의 패널 단열재로 성형후 건축물의 내장재료 및 구조의난연성 시험방법(KS F2271)에 따라 난연 테스트 하였다. 그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코 어)에 의한 방화층의 형성으로 난연3급에 준하는 불연성을 나타내었다. 실시예 6 300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 50 times (specific gravity = 0.025) with a pressure batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly. In addition, 70 g of expanded graphite having a density of about 2.2 g / cm³ particle size of 750-850 microns (μm) and 200-270 times expansion rate and 400 g of water-soluble phenolic resin (phenol resin having 55% of solid content) and p-toluene in separate containers Take 6 g of sulfonic acid, mix well beforehand, and slowly add to the blender with expanded graphite. When the mixture is stirred at 200 rpm for about 30 minutes in the blender, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 50 ° C. dryer for about 5 minutes, a flame retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained. Polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then flame-retardant test was carried out according to the test method for flame retardancy of the interior materials and the structure of the building (KS F2271). As a result, even if the flame was applied to the front surface, the non-combustible class 3 was shown due to the formation of a fireproof layer made of porous char (carbonized core) on the film of the interior material. Example 6

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 30배(비중=0.033)로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다.여기에 밀도가 약 2.2 g/cm³ 입자경이 350-450 미크롬(㎛), 팽창율이 150-200배인 팽창흑연 90g과 별도의 용기에 수용성페놀수지 350g(고형분이50%인페놀수지) , p-톨루엔 설폰산 8g을 취하여 미리 잘 혼합한후 팽창흑연과 함께 배합기에 서서히 투입한다.300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 30 times (specific gravity = 0.033) with a pressurized batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly, where the density is about 2.2 g / cm³ Take 90 g of expanded graphite with a particle size of 350-450 microns (μm), 150-200 times of expansion, and 350 g of water-soluble phenolic resin (50% of phenolic resin) and 8 g of p-toluene sulfonic acid in a separate container. After mixing, slowly add to expander with expanded graphite.

배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막 코팅된다. 이렇게 하여 얻어진 발포립자를 50℃ 건조기에 5분정도 건조시키면 본 발명에서 목적으로 하는 불연성을 갖는 난연 폴리 스티렌 발포체 수지입자를 얻을 수 있다.When the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. When the thus obtained foamed granules are dried in a 50 ° C. dryer for about 5 minutes, a flame-retardant polystyrene foam resin particle having a nonflammable target of the present invention can be obtained.

팽창흑연 및 열가소성 수지로 피막 코팅된 폴리스틸렌발포체 수지입자로 건축물의 보온단열재 나 건축물의 패널 단열재로 성형후 건축물의 내장재료 및 구조의난연성 시험방법(KS F2271)에 따라 난연 테스트 하였다. 그 결과 화염을 전면으로 받더라도 내장재료의 피막에 다공성 char(탄화코어)에 의한 방화층의 형성으로 난연3급에 준하는 불연성을 나타내었다. Polystyrene foam resin particles coated with expanded graphite and thermoplastic resin were molded into the thermal insulation material of the building or the panel insulation material of the building, and then flame-retardant test was carried out according to the test method of the flame retardancy of the interior materials and the structure of the building (KS F2271). As a result, even if the flame was received in front, the non-flammable class 3 showed non-combustibility due to the formation of a fireproof layer made of porous char (carbonized core) on the coating of the interior material.

비교실시예 1.Comparative Example 1.

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 80배(비중=0.012) 로 예비 발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다. 여기에 팽창흑연을 사용하지 않고 별도의 용기에 페놀수지 200g , p-톨루엔 설폰산 10g을 취하여 미리 잘 혼합한 후 붕소계 무기화합물 30g과 함께 배합기에 서서히 투입한다. 300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 80 times (specific gravity = 0.012) with a pressurized batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly. Here, without using expanded graphite, take 200g of phenol resin and 10g of p-toluene sulfonic acid in a separate container, mix well beforehand, and gradually add it to the blender with 30g of boron-based inorganic compound.

배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립자에 균일하게 피막 코팅된다. 이렇게하여 얻어진 발포립자를 50℃ 건조기에 30분정도 건조 경화시켜 본 발명에서 얻은 불연성을 갖는 난연 폴리스티렌 발포체수지입자와 비교하였다.When the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. The foamed granules thus obtained were dried and cured for about 30 minutes in a 50 ° C. drier and compared with the non-flammable polystyrene foam resin particles obtained in the present invention.

그 결과 단순 열가소성 수지로 피막 코팅된 폴리스티렌 발포체 수지입자로 건축물의 보온단열재나 건축물의 패널 단열재로 성형 후 건축물의 내장재료 및 구조의 난연성 시험방법(KSF 2771)에 따라 난연 테스트를 하였을 때 본 발명에서처럼 연소시 피막된 표층으로부터 다공성 Char(탄화코어)의 형성이 적게 발생되어 난연 3급에 준하는 불연성능을 얻지 못하였다.As a result, when polystyrene foam resin particles coated with a simple thermoplastic resin were molded into a thermal insulation material of a building or a panel insulation material of a building, the flame retardancy test according to the test method of flame resistance of interior materials and structures of a building (KSF 2771) was performed as in the present invention. During combustion, less porous Char (carbide core) was formed from the coated surface layer, resulting in non-combustible performance comparable to that of flame retardant class 3.

비교실시예 2.Comparative Example 2.

발포 폴리스틸렌 수지입자를 가압식 배치(batch)발포기로 80배(비중=0.012)로 예비발포하여 얻은 폴리스틸렌 발포립자 300g을 교반기가 장착된 100L 배합기에 투입하여 서서히 교반한다.여기에 팽창흑연을 사용하지 않고 별도의 용기에 페놀수지 200g , 탄소섬유 12g 과 붕소계 무기화합물 30g을 함께 배합기에 서서히 투입한다. 배합기에서 30분 정도 200rpm으로 교반하게 되면 첨가된 혼합물들이 발포립 자에 균일하게 피막코팅된다. 이렇게하여 얻어진 발포립자를 50℃ 건조기에 30분정도 건조 시켜 본 발명에서 얻은 불연성을 갖는 난연 폴리스티렌 발포체 수지 입자와 비교하였다.300 g of polystyrene foamed granules obtained by pre-expanding the expanded polystyrene resin particles at 80 times (specific gravity = 0.012) with a pressurized batch foaming machine are introduced into a 100L blender equipped with a stirrer and stirred slowly without using expanded graphite. In a separate container, 200g of phenol resin, 12g of carbon fiber and 30g of boron-based inorganic compound are slowly added to the blender. When the mixture is stirred at 200 rpm for about 30 minutes, the added mixture is uniformly coated on the foam particles. The foamed granules thus obtained were dried in a 50 ° C. dryer for about 30 minutes and compared with the flame retardant polystyrene foam resin particles having incombustibility obtained in the present invention.

그 결과 경화 촉매제가 없이 단순 열가소성 수지로 피막 코팅된 폴리스티렌 발포체 수지입자는 경화가 되지 않았기 때문에 발포립자 표면으로부터 페놀수지 및 붕소계 무기 화합물들의 이탈이 많이 발생됨을 관찰하였고 또한 단열재로 성형하여 건축물의 내장재료 및 구조의난연성 시험방법(KS F 2771)에 따라 난연 테스트를 하였을 때 본 발명에서처럼 연소시 피막된 표층으로부터 다공성 Char(탄화코어)의 형성이 전혀 없고 형태붕괴마저 발생되어 난연 3급에 준하는 불연성능을 얻지 못하였다.As a result, the polystyrene foam resin particles coated with a simple thermoplastic resin without a curing catalyst did not cure, so that many phenol resins and boron-based inorganic compounds were released from the surface of the foamed particles. When fire retardant test was carried out according to the flame retardancy test method of the material and structure (KS F 2771), there is no formation of porous Char (carbide core) from the coated surface layer during combustion as in the present invention. No performance was obtained.

본 발명에 의해서 폴리스티렌 발포체 입자에 팽창흑연, 열경화성 수지, 및 경화 촉매를 코팅, 경화시켜 불연성의 신규한 난연 폴리스티렌 발포입자를 제조하는 방법이 제공되었다. 또한 이러한 불연성 난연 폴리스티렌 입자로 신규한 판넬을 제조하는 방법이 추가로 제공되었다. 본 발명은 또한 팽창흑연과 열경화성 수지 및 경화촉매로 이루어진 혼합물이 코팅된 불연성의 난연 폴리스티렌 발포입자와 이로 이루어진 스티로폴 판넬이 제공되었다. The present invention provides a method for producing a non-flammable novel flame retardant polystyrene foam particle by coating and curing the expanded graphite, thermosetting resin, and curing catalyst on the polystyrene foam particles. Also provided is a method of making a new panel from such nonflammable flame retardant polystyrene particles. The present invention also provides a nonflammable flame retardant polystyrene foam particle coated with a mixture of expanded graphite, a thermosetting resin and a curing catalyst, and a styropol panel consisting thereof.

본 발명에 의해서 얻어진 불연성 난연 폴리스티렌 발포체 수지입자와 이로 제조된 단열재는 기존의 일반 스티로폴 단열재와 비교시 가공성 및 일반 물성면 에 큰 차이 없이 사용 가능한 특징을 갖고있다.The non-combustible flame retardant polystyrene foam resin particles obtained by the present invention and the heat insulating material prepared therefrom have characteristics that can be used without significant difference in terms of workability and general physical properties as compared with conventional general styropol heat insulating material.

Claims (6)

폴리스티렌 발포입자 100 중량부에 팽창흑연 2 - 30중량부, 열경화성 액상 페놀 수지 10 - 300중량부, 및 열경화성 액상 페놀 수지 100 중량부에 대해서 경화 촉매 0.02 - 30중량부 코팅, 가교시키는 단계를 포함하는 난연 폴리스티렌 발포체 수지입자 제조방법.It comprises the step of coating and crosslinking the curing catalyst 0.02-30 parts by weight based on 100 parts by weight of expanded graphite 2-30 parts by weight of polystyrene foam particles, 10-300 parts by weight of the thermosetting liquid phenolic resin, and 100 parts by weight of the thermosetting liquid phenolic resin Flame retardant polystyrene foam resin particle manufacturing method. 제 1 항에 있어서, 상기 팽창흑연이 밀도가 1.5 - 2.3g/cm³ 이고, 입경 30 에서 1000 미크론이며, 20 에서 350 배의 팽창율을 가지는 난연 폴리스티렌 발포체 수지입자의 제조 방법. The method of claim 1, wherein the expanded graphite has a density of 1.5-2.3 g / cm³ And a particle diameter of 30 to 1000 microns, and having a swelling ratio of 20 to 350 times. 삭제delete 제 1 항에 있어서, 상기 경화 촉매는 염화암모늄, 인산, 메탄 설폰산, 페놀 설폰산, p-톨루엔설폰산 및 이들의 혼합물로 이루어진 그룹에서 선택되는 난연 폴리스티렌 발포체 수지입자의 제조 방법.The method of claim 1, wherein the curing catalyst is selected from the group consisting of ammonium chloride, phosphoric acid, methane sulfonic acid, phenol sulfonic acid, p-toluenesulfonic acid, and mixtures thereof. 제 1 항에 있어서, 상기 발포된 폴리스티렌 비중은 0.03 - 0.010 인 방법.The method of claim 1 wherein the foamed polystyrene specific gravity is 0.03-0.010. 0.03 - 0.010 의 비중의 폴리스티렌 입자에, 상기 입자 100 중량부에 대해서 밀도가 1.5-2.3g/cm³ 이고 입경 30 에서 1000 미크론이며, 20 에서 350 배의 팽창율을 가지는 팽창흑연 2 - 30 중량부, 열경화성 액상 페놀수지 10 - 300 중량부, 및 경화촉매 0.05 - 30 중량부로 이루어진 코팅물이 경화되어 있는 난연 폴리스티렌 발포체 입자.Polystyrene particles having a specific gravity of 0.03-0.010, 2-30 parts by weight of expanded graphite having a density of 1.5-2.3 g / cm³ with a particle diameter of 30 to 1000 microns and an expansion ratio of 20 to 350 times with respect to 100 parts by weight of the particles, thermosetting Flame-retardant polystyrene foam particles having a cured coating consisting of 10 to 300 parts by weight of a liquid phenol resin and 0.05 to 30 parts by weight of a curing catalyst.
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