• 한국화재소방학회논문지
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• 제25권2호
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• pp.95-100
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• 2011

본 연구는 현장방염처리 물품에 대한 성능검사와 관련하여 불합리한 제도를 개선하고, 합리적인 방염성능검사 방법을 통하여 현장방염처리 물품에 대한 방염의 신뢰성을 확보하는데 궁극적인 목적이 있다. 이를 위해 최근 2년 동안 일선 소방관서에서 실시한 현장방염처리 물품에 대한 방염성능검사 실적을 토대로 최근에 사용되는 인테리어 마감자재 및 현장방염처리 경향에 대한 분석을 하였다. 또한 현장방염처리물품에 대한 성능검사 방법 및 절차, 방염처리업 등록제도의 문제점 등을 분석하여 현 실정에 적합한 방염성능검사 방법 및 성능검사의 신뢰성 확보를 위한 개선방안을 제시하고자 하였다.

• 한국안전학회지
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• 제28권6호
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• pp.17-22
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• 2013

The production of flame-retardant polypropylene powder coating with the addition of flame retardant (PP) controlled rheology (CR) and polypropylene, were discussed comparing the mechanical properties, such as safety and topical coating properties. Mechanical properties measurements showed almost the same as AA-1 where the flame retardant is not added. These results appear to, and because it is excellent in compatibility with polypropylene and flame retardant. Physical properties of the coating film, a test piece flame retardant organic is added, although it shows the physical properties of the coating film was stable, did not show the physical properties satisfactory is the test piece flame retardant of weapons has been added. In the safety of the topic, AA-4, AA-5 the results of thermal analysis but it is excellent, the LOI is excellent in 27.8 vol% 27.0 vol% in AA-4 and AA-2, AA-3, and 27.4 vol%, did not show many obstacles flame AA-5 result UL94.

• 한국전기전자재료학회논문지
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• 제35권2호
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• pp.178-183
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• 2022

For enhancing the flame-retardant properties of wallpapers, we developed an organic-inorganic hybrid solution with ZrSiO₄ as a functional ceramic powder, coated on non-woven fabric using dip coating, spray coating, and slot-die coating methods. Their flame retardant properties were characterized by a 45° combustion tester, which is manufactured according to the flame-retardant performance standard (KOFEIS 1001 and KS F 2819). In organic-inorganic hybrid solution, with increasing the concentration of acid-catalyst (acetic acid), the precipitation of ZrSiO₄ powders increased, and the flame retardant properties decreased. The highest flame retardant result was obtained for the solution adding 5 wt% acetic acid. The optimization of the coating method and coating number resulted in the most excellent flame-retardant properties being obtained for the non-woven fabric coated for 5 or 7 times by dip coating method, and their flame-retardant properties corresponded to class 2 flame-retardant performance of wallpapers.

• 펄프종이기술
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• 제38권4호
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• pp.61-67
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• 2006

The effect of several inorganic flame-retardants such as ammonium phosphate, ammonium sulfate, aluminum hydroxide and antimony trioxide on the flame-retardant property and tensile strength of paper has been investigated. Flame-retardants were used preferably as a dry powdered mixture and added to the furnish. Both dipping and coating treatments were employed to apply flame-retardants to paper Flame-retardant paper was manufactured by treatment of $5{\sim}30%$ flame-retardants by weight of the paper on a dry weight. Paper's flame-retardant property and tensile strength were examined by comparison of char length and tensile index. As dosages of flame-retardant chemicals increased, flame-retardant property was improved but tensile index was decreased.

• Journal of the Korean Wood Science and Technology
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• 제30권2호
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• pp.172-179
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• 2002

본 연구에서는 MDF와 잣나무 판재에 대한 난연처리 및 난연도장 처리 시험편에 대한 난연 효과에 대해 고찰하였다. 무처리 MDF와 잣나무판재에 대한 td𝜃은 각각 279.5, 182.5로 나타났으나 난연침지 처리된 무늬단판을 오버레이한 MDF를 난연도장 처리 한 경우 높은 난연성능을 나타냈다. 난연처리한 잣나무판재에 난연도장 처리를 할 경우 th𝜃가 90으로 나타났고, 난연침지 처리 된 무늬단판이 오버레이 된 MDF에 난연도장처리한 경우에는 th𝜃가 0으로 나타난 가장 뛰어난 난연성능을 나타냈다. 전체적으로 난연처리 및 난연도장처리를 한 경우 th𝜃가 감소하는 것으로 나타나 난연성능이 개선되는 것으로 나타났다. 또한 연소도 시험결과 시험편의 중량감소율은 난연처리와 난연도장처리에 의해 감소함으로써 난연성능이 개선되는 것으로 나타났다. 또한 착화시간과 잔염시간의 측정결과도 유사하게 나타났으며 난연침지 처리 된 무늬단판이 오버레이 된 MDF 및 난연처리된 잣나무판재에 난연도장 처리한 경우 무처리된 경우에 비해 착화시간은 증가되고, 잔염시간은 감소하는 것으로 나타났다.

• 한국세라믹학회지
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• 제48권6호
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• pp.537-542
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• 2011

Magnesium hydroxide as a non-halogen flame retardant has increasing attention due to its non-toxicity, high decomposition temperature and smoke suppressant ability during combustion. For the application of magnesium hydroxide retardant to the textile by soaking and coating method, the prerequisite for the coating is a small particle size, stable dispersion, and adhesion to the textile. The dispersion of $Mg(OH)_2$ particles and stability of the coating was checked by monitoring the change of transmittance and backscattering by varying the types of dispersion agents, binder, solvent, and $Mg(OH)_2$ source, and their compositions in the coating. The $Mg(OH)_2$ dispersion coating was applied to PET(poly(ethylene terephthalate)) non-woven textile. The physical properties are characterized by surface morphology, amount of coating, particle dispersion, and adhesion test. The flame retardant $Mg(OH)_2$ coated textile has been compared by limited oxygen index(LOI) and thermal gravimetry and differential scanning calorimetry(TG-DSC). It was found that phosphorous additive may give synergistic effect on $Mg(OH)_2$ flame retardant coating to make the flame retardant PET non-woven textile.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2010년도 제3회 국제학회
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• pp.167-168
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• 2010

Non coating type Low melting yarn(L/M PET) not to use the polyurethane resin causing some problems was knitting and evaluated its dyeing characteristics, heat setting properties and flame-retardant properties without flame retardant agent or flame retardant fabric. In order to investigate the dyeing property of fabric of L/M PET, the dyeing of L/M PET was experimented at each different dyeing temperature. Higher exhaustion yield was achieved at lower temperature of L/M PET compared to regular PET. According to result of the study for the heat setting properties of L/M fiber, the K/S value of dyed L/M fiber increased as much as the heat setting temperature did. The experiment for the light fastness reached similar result to dyed PET. However washing fastness in L/M fiber showed lower grade compared with regular PET. flame-retardant efficiency of L/M PET without flame retardant agent or flame retardant fabric measured by $45^{\circ}$ burn test and Contact burn test. The flame?retardant performance of the sample was carried out according to the Korea Fire-fighting Standard.[KOFEIS 1001].

• 한국화재소방학회논문지
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• 제30권3호
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• pp.67-72
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• 2016

본 연구에서는 최근 사회적으로 이슈가 되고 있는 다중이용시설의 화재 시 건축자재로 사용되는 내장재의 가연성으로 인한 화재확산 및 연소 시 유독가스 발생으로 인한 인명피해를 사전 예방하기 위한 방염제를 개발하고자 한다. 유-무기 하이브리드 소재로 실리카 졸에 방염성을 부여할 수 있는 방염 소재를 적용하여 졸-겔법에 의한 방염 접착제 또는 코팅제를 제조하였다. 기존의 방염소재는 물론 비방염소재의 방염화를 비할로겐 방법으로 적용가능하며, 기존의 접착 코팅제의 기본 물성과 특히 내열성능을 높여 화재 시 내열성 및 내구성을 향상시킬 수 있기 때문에 건축자재의 비할로겐 방염화를 확대하고자 한다.

• Nuclear Engineering and Technology
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• 제54권5호
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• pp.1652-1656
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• 2022

Fire tests were conducted on cables using fire-retardant paint employed in nuclear power plants that transmit electrical power, control and instrument signals. The failure criteria of various power and control cables coated with fire retardant coating at three different coating thicknesses (~0.5 mm, 1.0 mm & 1.5 mm) were studied under direct flame test using Container Fire Test Facility (CFTF) based on standard tests for bare cables. A direct flame fire test was conducted for 10 min with an LPG ribbon burner rated at ten by fixing the cable samples in a vertical cable track. Inner sheath temperature was measured until ambient conditions were achieved by natural convection. The cables are visually evaluated for damage and the mass loss percentage. Cable functionality is ascertained by checking for electrical continuity for each sample. The thickness of cable coating on fire exposure is also studied by comparing the transient variation of inner sheath temperature along the Cable length. This study also evaluated the adequacy of fire-retardant coating on cables used for safety-critical equipment in nuclear power plants.

• 한국안전학회지
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• 제25권3호
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• pp.45-52
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• 2010

The purpose of this study is application to flame retardant powder coating(FRPC) material consisting of ammonium polyphosphate(APP) and magnesium hydroxide($Mg(OH)_2$) as a halogen free flame retardant into thermoplastic resin(LDPE-g-MAH). For improvement of adhesion, LDPE-g-MAH was synthesized from low density polyethylene(LDPE) and maleic anhydride(MAH). The mechanical properties as melt flow index, pencil hardness, cross-hatch adhesion and impact resistance of FRPC were measured. Also, the limited oxygen index(LOI) values were measured 17.3vol%, 31.1vol% and 33.7vol% for LDPE-g-MAH, FRPC-3(APP 15wt%, $Mg(OH)_2$ 15wt%) and FRPC-5(APP 30 wt%), respectively. The thermo gravimetry/differential thermal analysis(TG/DTA) of FPRC-3 was observed endothermic peak at $340^{\circ}C$ and $450^{\circ}C$, it was confirmed predominant thermal stability though the wide temperature range by APP and $Mg(OH)_2$. It was showed V-0 grade for FRPC-3 and FRPC-4(APP 20wt%, $Mg(OH)_2$ 10wt%) that a char formation and drip suppressing effect, and combustion time reduced by UL94(vertical burning test). It was confirmed that flame retardancy was improved with the synergy effect because of char formation by APP and $Mg(OH)_2$.