• 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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• 제33권3호
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• pp.29-36
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• 2019

다층·다성분 난연성 케이블의 화재시뮬레이션에서 요구되는 연소물성이 콘 칼로리미터를 통해 측정되었다. 난연성 케이블의 주요 재질에 따른 CO 및 Soot yields 그리고 연소열이 검토되었다. 케이블의 난연성능이 우수한 TFR-8(고난연성 PCV 및 XLPE 첨가), TFR-CVV-SB(고난연성 PCV 및 일반 PVC로 구성) 및 VCTF가 각각 대상으로 고려되었다. 주요 결과로서, 난연성케이블인 TFR-8과 TFR-CVV-SB는 입사 복사열유속이 25 kW/㎡에서 50 kW/㎡으로 증가됨에 따라 CO yield(y_CO) 는 각각 23% 와 16% 증가한다. 반면에 VCTF의 CO yield는 복사 열유속의 변화에 큰 영향을 받지 않는다. 마지막으로 Soot yield 및 연소열은 시스의 재질(난연성능)이 강화될수록 복사 열유속에 의한 차이가 증가됨이 확인되었다. 따라서 다양한 열유속이 공존하는 화재환경에서 난연성 케이블의 연소물성의 적용에는 상당한 주의가 요구된다.

• 농업과학연구
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• 제43권3호
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• pp.496-505
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• 2016

The purpose of this study was to investigate the economic effects of a flame retardant aluminum screen developed by a company Economic effects were analyzed in terms of micro and macro-economic aspects. In the macro-economic aspect, economic effects were analyzed under the assumptions that the total import volume of flame retardant aluminum screen was approximately $50m^2$ in 2015 and that possible import substitution rates were 100%, 80%, and 60%. Results showed economic values of 2.25 billion won (100% import substitution rates), 1.8 billion won (80% import substitution rates), and 1.35 billion won (60% import substitution rates). If existing farms which had been using imported flame retardant aluminum screen replaced it newly developed with the flame-retardant aluminum screen developed in this study at rates of 100%, 80%, and 60%, the farms could save 750 million won, 60 million won, and 45 million won, respectively. Furthermore, the social cost savings from fire prevention could be 1.184 billion won. In the micro-economic aspect, if a farm with a typical-size ($1,000m^2$) greenhouse growing red pepper wanted to install flame retardant aluminum screen instead of generic aluminum screen, the farm may only pay an additional cost of 720,000 won. In comparison, if the farm chose fire insurance instead of flame-retardant aluminum screen, then the farm would pay 21,000,000 won for fire insurance. The above results show that the economic effect of flame retardant aluminum screen developed by the company would be be very efficient compared to the imported one.

• 한국의류학회지
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• 제24권1호
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• pp.15-23
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• 2000

Effect of fixation methods on the flame retardant(FR) and performance properties of MDPPA/HMM treated cotton fabrics were studied. Combination of three different fixation methods - premercerization, swelling agent treatment, pad dry cure fixation, and wet fixation - were applied to flame retardant finish of cotton with MDPPA/HMM. As a result, an increase in internal volume of cotton fiber by pre-mercerization and addition of swelling agent, and wet fixation increased %add-on of FR agent improving FR efficiency and wash fastness. Tensile strength of MDPPA/HMM treated cotton fabrics by wet fixation and swelling agent were slightly decreased, but that of premercerized cotton was improved. Wet fixated fabric showed lower bending rigidity and better compressional properties which improved fabric hand. Retention of swelling ability of cotton treated with MDPPA/HMM improved moisture absorption properties.

• Macromolecular Research
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• 제16권7호
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• pp.620-625
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• 2008

A novel nitrogen-phosphorus compound, diphenyl piperazine-1,4-diylbis(methylphosphinate)(DPPMP) was synthesized via a two step reaction and its flame retarding efficiency as a single component additive was investigated. The success of synthesis was confirmed by FTIR and $^1H$ and $^{31}P$ NMR analysis. The product was mixed with polycarbonate (PC), poly(butylene terephtalate) (PBT), ethylene-vinyl-acetate copolymer (EVA), and acrylonitrile-butadiene-styrene copolymer (ABS). The flame-retarding efficiency was evaluated using the limiting oxygen index (LOI) and the UL-94 vertical test methods. The addition of DPPMP enhanced the flame retardancy of the polymers and the V-0 ratings were obtained for the polymers examined in this study at a loading of 7-30 wt%. The gas-phase flame retardancy mode of action was suggested for this material from the thermogrametry experiment results.

• 폴리머
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• 제35권5호
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• pp.431-437
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• 2011

아크릴계 이중인산과 과황산암모늄을 개시제로 사용하여 고분자 코팅용액의 기반인 poly(acryloyl diphosphoric acid)(poly(ADP))를 70 $^{\circ}C$의 수용액에서 라디칼 중합반응으로 제조하였다. 제조된 고분자 코팅용액인 poly(ADP)는 salmonella typhimurium, pseudomonas aeruginosa, escherichia coli, 그리고 staphylococcus aureus에 대한 항균성을 보였으며, 또한, Asperigillus niger와 조류인플루엔자 바이러스인 H1N1 바이러스에 대해서도 좋은 항진균성을 보여주었다. 더욱이 면섬유에 제조된 코팅용액 poly(ADP)를 코팅시켰을 경우에 우수한 난연성을 보여주었다.

• 폴리머
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• 제32권1호
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• pp.13-18
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• 2008

전기 전자재료 중 고분자에 포함된 브롬계 난연제의 분석에 있어 용출이 어려운 4가지 재질 PC(polycar-bonate) PP(polypropylene), PET(poly(ethylene terephthalate)), PBT(poly(butylene terephthalate))에 대하여 추출방법 및 헥산/에세톤, THF, 톨루엔, THF/톨루엔에 대한 용매 특이성과 그 특성을 고찰하였다. 각 고분자에서의 deca-BDE(decabromo diphenyl ether)의 함량을 속슬렛, 초음파. 가속용매, 마이크로파, 초임계 유체 추출법을 사용하여 이들 방법의 효율을 정량분석 하였다. 초음파 추출은 낮은 고분자의 용해도 때문에 낮은 추출효율을 보여 사용한 고분자의 경우에 있어서 추출방법으로는 적합하지 않았으며, 나머지 3가지 방법에서는 톨루엔 사용시 약 80% 이상의 높은 추출효율을 보였다. 초임계 유체 추출은 고분자의 난연제 추출에 시도되지 않았던 방법이었으나, 본 실험에서 PP와 PC의 추출에서는 100%에 가까운 매우 높은 추출효율을 보였다.

• Nuclear Engineering and Technology
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• 제12권1호
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• pp.1-8
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• 1980

고선량율 전자가속기를 이용하여 폴리에스터/면혼방직포에 난연제 (Fyrol 76)를 그래프트 중합반응 시키는 방법의 개선을 시도하였다. 폴리에스터/면(65/35) 혼방직포에 고착시킨 난연제는 Fyrol 76을 사용하였다. 팽윤조건과 단위체와 접촉시간 및 선량율 등을 적절히 조절하므로써 섬유체 난연제를 그래프트 반응시킬 수 있었으며, 그래프트 중합반응의 수율은 방사선 선창과 선팽윤(先膨潤) 조건에 좌우되었다. 난연제로 처리한 혼방직포의 난연성 효과는 산소 지수로 측정하였다. 폴리에스터/면혼방직포에 난연제를 그래프트 중합반응 시키는 방법으로 종래에는 고온에서 두단계를 거쳐 실시하는 것이었으나 본 연구를 통하여 실온에서 단 단계로 처리토록 하는 방법을 개선하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.249-250
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• 2018

To control the floor noise generated in the apartment building, a method of reinforcing the floor at the floor is applied. However, since existing buildings are difficult to reinforce upper generations, the ceilings of lower generations should be reinforced. The purpose of this study is to analyze the reduction effect by measuring the impact noise after reinforcing the floor soundproofing material on the ceiling of the existing building. In order to ensure the economical efficiency and flame retardancy of the products used as building interior materials, the existing polyurethane foam was impregnated with mineral to prepare test specimens and attached to the concrete slab surface. As a result, it was shown that heavy impact sound can reduce 2dB~5dB and light impact sound can reduce 4~8dB.

• 한국안전학회지
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• 제23권6호
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• pp.84-90
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• 2008

The mass loss rate and heat release rate of puzzle mats were analysed using variable external irradiation level. Five samples of puzzle mat were tested in this study : Type A, B, C, D and E. Type A, B and C are all general grades whereas Type D and E are both Flame retardant grades. Incident heat fluxs of $25kW/m^2$, $35kW/m^2$, $50kW/m^2$ and $70kW/m^2$ were selected for these experiments. All samples were tested in the horizontal orientation and were wrapped in a single layer of aluminum foil. Each sample was nominally 20mm thick and 100mm square. The combustion heat and mass loss rate were carried out from Oxygen bomb calorimeter and mass loss calorimeter according to ISO 5660-1 respectively. Heat release rates were calculated using the equation ${\dot{Q}}=A_f{\dot{m}}"_X{\Delta}H_c=0.75A_f{\dot{m}}"{\Delta}H_c$. where $A_f$ is the horizontal burning area of the sample, $\dot{m}"$ is mass loss rate per unit area, ${\Delta}H_c$ is complete heat of combustion and 0.75 is combustion efficiency.