KR101665322B1 - form coating composition and it's manufacture, it used to manufacture for sound absorption form sheet - Google Patents
form coating composition and it's manufacture, it used to manufacture for sound absorption form sheet Download PDFInfo
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- 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
- C08J9/36—After-treatment
- C08J9/365—Coating
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2433/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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Abstract
본 발명은 아크릴산, 아크릴산 에스테르, 아크릴아미드, 아크릴로니트릴, 메타크릴산, 메타크릴산에스테르에서 선택된 하나이상의 수성아크릴수지 10~20kg, 인산에스텔 10~20kg,
수산화 알미늄 5~10kg,
에틸렌비스테트라브롬프틸이미드(ethylenebistetrabromeophthlimide) 5~10kg, 삼산화안티몬 2~5kg, 벤조페놀, 설틴산 에스텔, 힌더드아민 중에서 선택된 어느 하나의 화합물인 난연보조제 1~5kg 및 물 10~30kg 으로 조성된 화합물 97~99 중량%;와
카본블랙 1~3 중량 %;와
1N NH3 3~7 중량%;으로 조성된 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법에 관한 것이다.The present invention relates to an aqueous acrylic resin composition comprising 10 to 20 kg of at least one aqueous acrylic resin selected from acrylic acid, acrylic acid ester, acrylamide, acrylonitrile, methacrylic acid and methacrylic acid ester,
5 to 10 kg of aluminum hydroxide,
5 to 10 kg of ethylenebistetrabromeophthlimide, 2 to 5 kg of antimony trioxide, 1 to 5 kg of a flame retardant adjuvant which is any compound selected from benzophenol, sulphonic ester and hindered amine and 10 to 30 kg of water 97 to 99% by weight of a compound;
1 to 3% by weight of carbon black;
And 3 to 7% by weight of 1N NH3. The present invention relates to a method for producing a foamed sheet for sound absorption using a foam coating composition.
Description
본 발명은 난연성 수성 아크릴 조성물이 내장된 원료탱크에 흡음성능이 우수한 연속기포 구조를 갖고있는 발포체를 함침 또는 표면을 코팅하여 발포체가 갖고있는 흡음성능과 난연성 수성 아크릴 조성물이 갖고 있는 특성을 혼합시켜 내열성, 가공성, 내연성, 단열성, 흡음성을 향상시켜 모든 산업분야에 사용될 수 있는 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법에 관한 것이다.
The present invention relates to a method for producing a flame-retardant water-based acrylic composition by mixing a foam having an open-cell structure excellent in sound absorption performance in a raw material tank containing a flame-retardant aqueous acrylic composition by impregnating or coating a surface thereof, The present invention relates to a method for manufacturing a foam sheet for sound absorption using a foam coating composition which can be used in all industrial fields by improving heat resistance, workability, flame resistance, heat insulation and sound absorption.
일반적으로 건축물 또는 굴삭기, 발전기내부, 버스엔진실 흡음재로 사용되는 발포체는 내열성, 내산성, 내후성, 단열성 내흡습성, 및 온도변화(130℃)에 취약하여 쉽게 재질이 수축되거나 표면이 경화되며 일정기간이 지나면 빛과 자연온도 변화에 의하여 풍화비산 현상으로 인하여 재질변형(인장, 인열, 유연성, 단열성, 흡음성, 흡습성)으로 인한 품질저하를 일으킨다. 또한 폴리우레탄, 폴리우레탄폼, 실리콘 화합물, 고무화합물를 휘발성이 강한 용제와 혼합하여 제조함을 원칙함으로써 건조기를 통한 용제를 휘발시킨다 하여도 기포속에 함유되어 있는 잔류용제로 인하여 재질의 팽창과 변형으로 인한 물성변화 및 내연성 저하 문제로 많은 어려움을 겪어왔다.Generally, foam used as a sound absorbing material in buildings or excavators, generators and buses is vulnerable to heat resistance, acid resistance, weather resistance, heat insulation hygroscopicity, and temperature change (130 ° C) Over time, due to weathering and scattering phenomena caused by light and natural temperature changes, it causes quality deterioration due to material deformation (tensile, tear, flexibility, insulation, sound absorption, hygroscopicity). Also, it is a principle to manufacture polyurethane, polyurethane foam, silicone compound, and rubber compound by mixing with volatile solvent, so that even if the solvent is volatilized through the drier, due to the expansion and deformation of the material And has suffered from many difficulties due to changes in physical properties and lowering of flame resistance.
이러한 문제점을 보호하고자 국내특허출원번호 제10-1991-4040호 및 제10-1998-022456호 등에 액상타입의 우레탄을 토루엔과 혼합하여 필름에 전사시켜 발포체에 합지시킨 방법과 전사방법 없이 직접 코팅시켜 제조하는 우레탄 폼 제조방법들이 공개 되어있음을 알 수 있다.In order to protect such a problem, Japanese Patent Application Nos. 10-1991-4040 and 10-1998-022456 disclose a method in which a liquid type urethane is mixed with a toluene and transferred to a film to be joined to a foam, And then the urethane foam is produced.
이러한 종래 방법들은 모두 화재에 취약한 강력한 휘발성 갖고 있는 용제를 사용된다는 특징을 갖고 있으며 배출시 공해와 유류가격 변동으로 매년 원유의 원가가 상승되어 수출단가에도 많은 어려움을 겪어왔다.
All of these conventional methods are characterized by the use of highly volatile solvents that are vulnerable to fire, and the cost of crude oil has risen annually due to pollution and fluctuations in oil prices.
종래의 발포체는 내열성, 내연성, 내후성, 내유성 ,내약품성, 내흡습성 ,반발탄성이 독립기포구조를 갖는 발포체에 비하여 떨어지며 온도변화(130℃)에 쉽게 재질이 수축되거나 표면이 경화되며 일정기간이 지나면 자연적인 풍화비산으로 재질변형 및 품질저하를 일으킨다.Conventional foams are inferior to foams having heat resistance, flame resistance, weather resistance, oil resistance, chemical resistance, moisture absorptivity and rebound resilience compared to foams having a closed cell structure and easily shrink or change in temperature Natural weathering scattering causes material deformation and quality deterioration.
이러한 문제 때문에 우레탄 및 발포체 표면위에 천, 필림, 알미늄 호일, 부직포 등을 합지하여 사용한다. 통기가 되지 않는 마감재를 사용할 경우 발포체 본래의 흡음성, 물리적성질, 기계적 성질을 기대할 수 없다.Because of this problem, cloth, film, aluminum foil, non-woven fabric, etc. are laminated on the surface of urethane and foam. When a non-permeable finish is used, the original sound absorption properties, physical properties, and mechanical properties of the foam can not be expected.
또한 우레탄 액과 난연보조물을 혼합한 우레탄액을 우레탄 표면위에 흡수시켜 표면에 코팅한 제품이 발명 사용 되었으나 이 제품역시 우레탄 본래의 흡음성능은 유지되지만 우레탄이 갖고 있는 내열성, 내연성, 내유성, 내후성, 내흡습성, 및 내열이 오랫동안 요구되는 차량엔진룸, 굴삭기엔진룸, 발전기내부등 흡음성능과 단열성이 요구되는 사용 용도에는 적합하지 않았다.
In addition, Urethane mixed with Urethane liquid and Flame Retarding Aid was absorbed on Urethane surface and coated on the surface. However, this product also retains Urethane's original sound absorption performance, but Urethane has heat resistance, flame retardancy, oil resistance, It is not suitable for use in a vehicle engine room, an engine room of an excavator, a generator room, etc., which require long-lasting hygroscopicity and heat resistance, and which require sound absorption performance and heat insulation.
상기와 같은 문제점을 보완하고자 우레탄폼 및 발포체가 갖고 있는 흡음성능에 수성아크릴 조성물이 갖고 있는 물성(내열성, 내후성, 단열성 흡음성, 비오일성)을 동시에 구현하고자In order to solve the above problems, it is desired to simultaneously realize the physical properties (heat resistance, weather resistance, heat insulating sound-absorbing property, non-oily property) of the water-based acrylic composition with respect to the sound absorption performance of the urethane foam and the foam
본 발명은 수성아크릴수지 10~20kg, 인산에스텔 10~20kg, 수산화 알미늄 5~10kg,The present invention relates to an aqueous acrylic resin composition comprising 10 to 20 kg of an aqueous acrylic resin, 10 to 20 kg of phosphoric acid ester, 5 to 10 kg of aluminum hydroxide,
에틸렌비스테트라브롬프틸이미드(ethylenebistetrabromeophthlimide) 5~10kg, 삼산화안티몬2~5kg, 벤조페놀, 설틴산 에스텔, 힌더드아민 중에서 선택된 어느 하나의 화합물인 난연보조제 1~5kg 및 물 10~30kg 조성된 화합물 97~99 중량%;와5 to 10 kg of ethylenebistetrabromeophthlimide, 2 to 5 kg of antimony trioxide, 1 to 5 kg of a flame retardant adjuvant which is any one compound selected from benzophenol, sulphonic acid ester and hindered amine, and 10 to 30 kg of water 97 to 99% by weight;
카본블랙 1~3 중량 %;와1 to 3% by weight of carbon black;
1N NH3 3~7 중량%;으로 조성된 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법을 제공하는 것이 본 발명의 과제 해결수단인 것이다.
And 3 to 7% by weight of 1N NH3. The present invention provides a process for producing a foamed sheet for sound absorption using the foam coating composition.
본 발병은 베이스가 용제타입이 아닌 물을 원료베이스로 사용하기 때문에 작업시 화재의 위험성, 경제적 면과 친환경재료를 사용한다는 것을 장점과, 흡음성능이 우수한 연속기포 구조를 갖고 있는 발포체를 함침 또는 표면을 코팅하여 발포체가 갖고 있는 흡음성능과 난연성 수성 아크릴 조성물이 갖고 있는 특성을 혼합시켜 내열성, 가공성, 내연성, 단열성, 흡음성을 향상시켜 모든 산업분야에 사용될 수 있는 장점이 있는 것이다.
Since the base uses water, which is not a solvent type, as a raw material base, it is advantageous to use fire-risk, economical and environment-friendly materials at the time of operation, and to impregnate or foam a foam having an open- Coating property of the foamed material and the characteristics of the flame-retardant aqueous acrylic composition to improve the heat resistance, workability, flame resistance, heat insulation and sound absorption property, and thus it can be used in all industrial fields.
본 발명은 아크릴산, 아크릴산 에스테르, 아크릴아미드, 아크릴로니트릴, 메타크릴산, 메타크릴산에스테르에서 선택된 하나 이상의 수성아크릴수지 10~20kg, 인산에스텔 10~20kg,The present invention relates to an aqueous acrylic resin composition comprising 10 to 20 kg of at least one aqueous acrylic resin selected from acrylic acid, acrylic acid ester, acrylamide, acrylonitrile, methacrylic acid and methacrylic acid ester,
수산화 알미늄 5~10kg,5 to 10 kg of aluminum hydroxide,
에틸렌비스테트라브롬프틸이미드(ethylenebistetrabromeophthlimide) 5~10kg, 삼산화안티몬2~5kg, 벤조페놀, 설틴산 에스텔, 힌더드아민 중에서 선택된 어느 하나의 화합물인 난연보조제 1~5kg 및 물 10~30kg 으로 조성된 화합물 97~99 중량%;와5 to 10 kg of ethylenebistetrabromeophthlimide, 2 to 5 kg of antimony trioxide, 1 to 5 kg of a flame retardant adjuvant which is any compound selected from benzophenol, sulphonic ester and hindered amine and 10 to 30 kg of water 97 to 99% by weight of a compound;
카본블랙 1~3 중량 %;와1 to 3% by weight of carbon black;
1N NH3 3~7 중량%;으로 조성된 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법에 관한 것이다.
And 3 to 7% by weight of 1N NH3. The present invention relates to a method for producing a foamed sheet for sound absorption using a foam coating composition.
본 발명의 수산화 알미늄은 연소시 유래가스가 적고 발연성이 낮아 안정성이 매우 좋다. 본 발명에서는 5~10kg을 사용하였다.The aluminum hydroxide of the present invention has a low stability and a low gas-derived gas and low ductility during combustion. In the present invention, 5 to 10 kg was used.
브롬화합물 열분해시 불연성가스를 발생시켜 수성아크릴 표면을 덮어 착화를 방지하여 가연성가스를 희석시켜 연소를 저하시킨다.When the bromine compound is pyrolyzed, incombustible gas is generated to cover the surface of the acrylic acrylate to prevent ignition, thereby reducing the combustion by diluting the combustible gas.
본 발명에서는 5~10kg을 사용하였다.In the present invention, 5 to 10 kg was used.
인산에스텔은 연소시에 인산이 발생되어 보호막을 형성하며 산소를 차단하는 효과를 나타낸다. 본 발명에서는 10~20kg을 사용하였다.
Phosphoric acid is generated at the time of combustion to form a protective film and shows an effect of blocking oxygen. In the present invention, 10 to 20 kg was used.
삼산화안티몬은 인산화합물, 수산화알미늄 브롬화합물이 작용하면 난연작용이 뛰어나며 연소고리연쇄가 절단되는 상승효과를 나타난다.Antimony trioxide shows a synergistic effect in that the phosphoric acid compound and the aluminum hydroxide bromide compound exert excellent flame retarding action and the combustion chain chain is cleaved.
본 발명에서는 2~5kg을 사용하였다.
In the present invention, 2 to 5 kg was used.
본 발명은 롤 작업이나 판상상태의 작업 모두가 가능하며 발포체코팅조성물을 발포체 표면에 코팅되고 일부는 발포체의 미세구멍을 통하여 내부구조까지 흡수시켜 일부 침투현상을 갖게 하는 기술적인 측면을 고려하여야 높은 흡음성능, 높은 난연성을 갖게 되는 발포체 코팅조성물의 특성을 발포체에 나타나게 하였다.
The present invention is applicable to both roll work and plate-like work, and it is necessary to consider a technical aspect in which the foam coating composition is coated on the surface of the foam and part of the foam is absorbed to the internal structure through the micropores of the foam, Performance, and high flame retardancy in the foam.
이는 아크릴산, 아크릴산 에스테르, 아크릴아미드, 아크릴로니트릴, 메타크릴산, 메타크릴산에스테르에서 선택된 하나 이상의 수성아크릴수지와It may comprise at least one water-soluble acrylic resin selected from acrylic acid, acrylic acid esters, acrylamide, acrylonitrile, methacrylic acid, and methacrylic acid esters,
난연성물질을 혼합하여 1단계를 형성하여 고속 교반기에서 20~30분간 교반한다. 교반된 혼합물에 카본블랙을 첨가하여 10~15분 더 교반시킨다.Flame retardant materials are mixed to form a first stage and stirred in a high speed stirrer for 20 to 30 minutes. Carbon black is added to the stirred mixture and stirred for 10 to 15 minutes.
2차로 교반된 혼합물에 0.1N NH3을 3~7kg을 첨가하여 난연성 수성아크릴 조성물의 PH가 5~6이 될 때까지 교반하여 조성된 발포체코팅조성물을 1단계로 형성하여3 to 7 kg of 0.1 N NH3 was added to the secondarily stirred mixture to stir the flame retardant aqueous acrylic composition until the pH of the flame retardant aqueous acrylic composition became 5 to 6,
2단계인 코팅 로울러를 통하여 1㎡당 500g~2kg을 균일하게 표면으로부터 발포층 내부까지 코팅흡수시키면 500g당 2mm 까지 흡수된다.Through the coating roller of the second stage, 500g ~ 2kg per 1m2 is uniformly coated and absorbed from the surface to the inside of the foamed layer, and it is absorbed up to 2mm per 500g.
표면이 흡수된 발포체를 3단계인 건조기를 통하여(150~200℃) 발포체 내부에 남아있는 수분을 증발시켜 발포체 표면으로부터 발포체 공기층내부 2~5mm까지 고형분을 흡수시켜 표면층을 형성하여 완성된 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법인 것이다.
The surface-absorbed foam is evaporated through a three-stage dryer (150 to 200 ° C) to absorb the moisture remaining in the foamed body from the surface of the foam to a solid content of 2 to 5 mm in the foamed air layer to form a surface layer, Is a method for producing a foam sheet for sound absorption.
이하 본 발명을 실시예를 통하여 상세히 설명하면 다음과 같다.
Hereinafter, the present invention will be described in detail with reference to examples.
실시예1Example 1
제1공정(발포체 코팅조성물 제조)The first step (preparation of the foam coating composition)
아크릴산 에스테르 10kg, 인산에스텔 10kg, 수산화알미늄 5kg, 브롬화합물 5kg, 삼산화안티몬2kg, 벤조페놀 1kg, 물 10kg을 첨가한 혼합물을 고속교반기를 통하여 1050rpm으로 20~30분간 교반하고 상기 혼합물에 카본블랙 1kg을 첨가하여 고속교반기에서 1050rpm으로 10~15분간 교반 한 다음,10 kg of acrylic acid ester, 10 kg of phosphoric acid ester, 5 kg of aluminum hydroxide, 5 kg of bromine compound, 2 kg of antimony trioxide, 1 kg of benzophenol and 10 kg of water was stirred at 1050 rpm for 20 to 30 minutes through a high speed stirrer and 1 kg of carbon black And the mixture was stirred at 1050 rpm for 10 to 15 minutes in a high-speed stirrer,
교반된 혼합물에 0.1N NH3 수용액 3kg 을 첨가하여 교반기로 1050rpm 으로 30분간 교반하여 발포체 코팅조성물을 제조한 후에,
To the stirred mixture was added 3 kg of 0.1 N NH3 aqueous solution and stirred for 30 minutes at 1050 rpm with a stirrer to prepare a foam coating composition,
제2공정(발포체 코팅)The second step (foam coating)
코팅로울러을 통하여 우레탄폼시트 두께에 따라 발포체 코팅조성물을 1㎡당 500g~2kg을 균일하게 발포체 표면으로부터 발포체 내부 공기층까지 흡수시킨 다음, 건조기로 150~180℃에서 2시간 건조시켜 발포체 내부에 남아있는 수분을 증발시켜 우레탄폼시트 표면으로부터 우레탄폼시트 공기층내부까지 발포체 코팅조성물을 흡수시켜 표면층을 형성한 발포체 코팅조성물이 코팅된 흡음용 발포체 시트를 제조하였다.
500 g to 2 kg per 1 m 2 of the foam coating composition were uniformly absorbed from the surface of the foam to the inner air layer of the foam according to the thickness of the urethane foam sheet through the coating roller and then dried at 150 to 180 ° C for 2 hours in a dryer to remove water Was evaporated to produce a foam sheet coated with a foam coating composition having a surface layer formed by absorbing the foam coating composition from the urethane foam sheet surface to the inside of the urethane foam sheet air layer.
실시예2Example 2
제1공정(발포체 코팅조성물 제조)The first step (preparation of the foam coating composition)
아크릴로 니트릴 20kg, 인산에스텔 20kg, 수산화알미늄 10kg, 브롬화합물 10kg, 삼산화안티몬 5kg, 힌더드아민 5kg, 물30kg을 첨가한 혼합물을 고속교반기를 통하여 1050rpm으로 20~30분간 교반하고 상기 혼합물에 카본블랙 3kg을 첨가하여 고속교반기에서 1050rpm 으로 10~15분간 교반 한 다음, 교반된 혼합물에 0.1N NH3 수용액 7kg을 첨가하여 교반기로 1050rpm으로 30분간 교반하여 발포체 코팅조성물을 제조한 후에,
20 kg of acrylonitrile, 20 kg of phosphoric acid ester, 10 kg of aluminum hydroxide, 10 kg of bromine compound, 5 kg of antimony trioxide, 5 kg of hindered amine, and 30 kg of water were stirred at 1050 rpm for 20 to 30 minutes through a high-speed stirrer, The mixture was stirred for 10 to 15 minutes at 1050 rpm in a high-speed stirrer, and then 7 kg of 0.1 N NH3 aqueous solution was added to the stirred mixture. The mixture was stirred for 30 minutes at 1050 rpm with a stirrer to prepare a foam coating composition,
제2공정(발포체 코팅)The second step (foam coating)
코팅로울러을 통하여 우레탄폼시트 두께에 따라 발포체 코팅조성물을 1㎡당 500g~2kg을 균일하게 발포체 표면으로부터 발포체 내부 공기층까지 흡수시킨 다음, 건조기로 150~180℃에서 2시간 건조시켜 발포체 내부에 남아있는 수분을 증발시켜 우레탄폼시트 표면으로부터 우레탄폼시트 공기층내부 2~5mm까지 발포체 코팅조성물을 흡수시켜 표면층을 형성한 발포체 코팅조성물이 코팅된 흡음용 발포체 시트를 제조하였다.
500 g to 2 kg per 1 m 2 of the foam coating composition were uniformly absorbed from the surface of the foam to the inner air layer of the foam according to the thickness of the urethane foam sheet through the coating roller and then dried at 150 to 180 ° C for 2 hours in a dryer to remove water Was evaporated to produce a foam sheet having a foam layer coated with a foam layer formed by absorbing the foam coating composition to a thickness of 2 to 5 mm inside the urethane foam sheet air layer from the surface of the urethane foam sheet.
실험예1
Experimental Example 1
2014년 한국산업기술시험원 성적서번호 시료명으로 발급받은 물리적특성방법
Korea Institute of Industrial Technology Examination certificate number 2014
흡음율시험방법 KS F2814-2:2002
Sound absorption test method KS F2814-2: 2002
두께31mm 우레탄코팅 재질의 발포시트를 위의시험방법(관내법) 200[HZ]~1600[HZ]측정한 결과 평균 NRC(흡음율)가 0.428되었다.
The average of NRC (Sound Absorption Rate) was found to be 0.428 as measured by the above test method (in-pipe method) from 200 [HZ] to 1600 [HZ] with a 31 mm thick urethane-coated foam sheet.
실험예2
Experimental Example 2
두께31mm 실시1에서 제조된 발포시트를 위의 시험방법(관내법) 200[HZ]~1600[HZ]측정한 결과 평균 NRC(흡음율)가 0.614로 흡음성능이 43%가 증가하였다.
Thickness 31 mm The foamed sheet prepared in Example 1 was subjected to the above-mentioned test method (in-pipe method) at a frequency of 200 [HZ] to 1600 [Hz], and the average NRC (sound absorption ratio) was 0.614.
실험예3
Experimental Example 3
두께 10mm 우레탄코팅 우레탄 발포체 시트를 KSM 3802시험방법(가열치수변화)을 통하여 치수변화를 측정한 결과 -0.5%가 변화되었다.
The urethane-coated urethane foam sheet having a thickness of 10 mm was subjected to dimensional change measurement according to the KSM 3802 test method (heating dimension change), and the result was -0.5%.
실험예4
Experimental Example 4
두께 10mm 실시1에서 제조된 발포시트를 KSM 3802 시험방법(가열치수변화)을 통하여 치수변화를 측정한 결과 치수의 변화가 발생하지 않았다.
Thickness 10 mm The dimensional changes of the foam sheet prepared in Example 1 were measured by the KSM 3802 test method (change in heating dimension), and as a result, the dimension did not change.
실험예5
Experimental Example 5
두께10mm 우레탄코팅 우레탄 발포체 시트를 KSM3015 시험방법(내유성)을 통하여 유압 작동유 을 상온에서 24시간 침적후 변형여부를 측정한 결과 재질이 팽윤되었다.
A 10mm thick urethane-coated urethane foam sheet was swelled by hydraulic test using KSM3015 test method (oil resistance) after immersing the hydraulic oil at room temperature for 24 hours.
실험예6
Experimental Example 6
두께10mm 실시1에서 제조된 발포시트를 KSM3015 시험방법(내유성)을 통하여 유압 작동유을 상온에서 24시간 침적후 변형여부를 측정한 결과 재질변형이 없었다.
Thickness 10 mm The foamed sheet prepared in Example 1 was immersed in hydraulic oil at room temperature for 24 hours through KSM3015 test method (oil resistance).
실험예7
Experimental Example 7
두께13mm 우레탄코팅 우레탄 발포체 시트를 UL94 수평연소시험 방법으로 측정한 결과 30초에 불이 꺼졌으며 연소시 녹아떨어지는 불똥에 의해 30㎝ 아래에 있는 탈지면에 발화되었다.
The thickness of the urethane-coated urethane foam sheet of 13 mm in thickness was measured by the UL94 horizontal combustion test method. As a result, the fire was turned off in 30 seconds,
실험예8
Experimental Example 8
두께 13mm 실시1에서 제조된 발포시트를 UL94 수평연소시험 방법으로 측정한 결과 5초안에 불이 꺼졌으며 불똥이 발생하지 않았다.
Thickness 13 mm The foam sheet prepared in Example 1 was measured by the UL94 horizontal combustion test method and the fire was turned off within 5 seconds and no sparking occurred.
이상과 같이 본 발명의 발포시트는 종래의 우레탄 코팅 발포체 시트보다 기계적, 물리적, 화학적, 변화 및 흡음성능 및 난연성 등이 양호하거나 개선된 물리적 성질을 갖는 발포시트인 것이 확인되었다.As described above, it has been confirmed that the foam sheet of the present invention is a foam sheet having better mechanical properties, physical, chemical, change, sound absorption performance, flame retardancy, and the like, or improved physical properties than conventional urethane-coated foam sheets.
Claims (3)
제1공정(발포체 코팅조성물 제조)
아크릴산, 아크릴산 에스테르, 아크릴아미드, 아크릴로니트릴, 메타크릴산, 메타크릴산에스테르에서 선택된 수성아크릴수지 10~20kg, 인산에스텔 10~20kg, 수산화 알미늄 5~10kg, 브롬화합물 5~10kg, 삼산화안티몬2~5kg, 벤조페놀, 설틴산 에스텔, 힌더드아민 중에서 선택된 어느 하나의 화합물인 난연보조제 1~5kg, 물 10 ~30kg을 첨가한 혼합물을 고속교반기를 통하여 1050rpm으로 20~30분간 교반하고 상기 혼합물 97~99중량%에 카본블랙 1~3 중량%를 첨가하여 고속교반기에서 1050rpm 으로 10~15분간 교반 한 다음,
교반된 혼합물 중량대비 0.1N NH3 수용액 3~7중량%를 첨가하여 교반기로 1050rpm 으로 30분간 교반하여 발포체 코팅조성물을 제조한 후에,
제2공정(발포체 코팅)
코팅로울러을 통하여 우레탄폼시트 두께에 따라 발포체코팅조성물을 1㎡당 500g~2kg을 균일하게 발포체 표면으로부터 발포체내부 공기층까지 흡수시킨 다음, 건조기로 150~180℃에서 2시간 건조시켜 발포체 내부에 남아있는 수분을 증발시켜 우레탄폼시트 표면으로부터 우레탄폼시트 공기층내부 2~5㎜까지 발포체 코팅조성물을 흡수시켜 표면층을 형성한 발포체코팅조성물을 이용한 흡음용 발포시트의 제조방법.A method for producing a sound-absorbing foamed sheet using a foam coating composition,
The first step (preparation of the foam coating composition)
10 to 20 kg of an aqueous acrylic resin selected from acrylic acid, acrylic acid ester, acrylamide, acrylonitrile, methacrylic acid and methacrylic acid ester, 10 to 20 kg of phosphoric acid ester, 5 to 10 kg of aluminum hydroxide, 5 to 10 kg of bromine compound, 1 to 5 kg of a flame-retardant auxiliary, which is a compound selected from benzophenol, stearic acid ester and hindered amine, and 10 to 30 kg of water, is stirred at 1050 rpm for 20 to 30 minutes through a high-speed stirrer, To 99% by weight of carbon black and 1 to 3% by weight of carbon black. The mixture is stirred at 1050 rpm for 10 to 15 minutes in a high speed stirrer,
3 to 7% by weight of a 0.1N NH 3 aqueous solution was added to the stirred mixture, and the mixture was stirred at 1050 rpm for 30 minutes with a stirrer to prepare a foam coating composition,
The second step (foam coating)
500 g to 2 kg per 1 m 2 of the foam coating composition were uniformly absorbed from the surface of the foam to the inner air layer of the foam according to the thickness of the urethane foam sheet through the coating roller and then dried at 150 to 180 ° C for 2 hours in a dryer to remove water Is evaporated to absorb the foam coating composition from the surface of the urethane foam sheet to 2 to 5 mm inside the urethane foam sheet air layer to form a surface layer, thereby producing a foamed sheet for sound absorption.
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