Trichlorotridimethylaminocyclotriphosphazene으로 硬化시킨 Epoxy resin의 動的 粘彈性에 대한 Glass 충전효과

尹興洙 慶一大學校 1990 論文集 Vol.6 No.1

1, 3, 5-Trichloro-1, 3, 5-tridimethylaminocyclotriphospazene (C13) was synthesized from hexachlorocyclotriphosphazene (PNC) and used as curing agent of epoxy prepolymer. (phenol novolak type, EPIKOTE 154, 179g/eq.) The effect of glass filler on the dynamic viscolasticity and chemical resistance of epoxy resins cured by C13 were investigated. In case of the addition of glass flake, modulus of rigidity and glass transition temperature were increased and dimensional stability was better than glass fiber or glass beads.

A Convergence Study on the Effects of NH₃/NOx Ratio and Catalyst Type on the NOx Reduction by Urea-SCR System of Diesel Engine

윤흥수,류연승,Yoon, Heung-Soo,Ryu, Yeon-Seung Korea Convergence Society 2019 한국융합학회논문지 Vol.10 No.4

디젤엔진은 열효율이 높고 연비가 좋으며 CO, HC 및 $CO_2$의 배출량이 낮은 등 가솔린 엔진보다 상당한 장점이 있다. 그러나 디젤엔진은 배기가스 중에 $O_2$ 농도가 높기 때문에 NOx 저감이 어렵고, 삼원촉매를 적용하기 어렵다. Urea-SCR과 LNT는 디젤엔진에서 NOx를 연속적으로 저감하는데 활용 가능한 두 기술이다. 디자인 엔진에 Urea-SCR 시스템을 구현함으로써 2.5l 이상 엔진에서 Euro-6의 강화된 NOx 기준을 충족시킬 수 있게 되었다. 본 연구에서는 엔진 회전속도, 부하, 촉매 방식 및 $NH_3$/NOx 비율에 따른 NOx 저감 특성을 연구하여 NOx 저감을 극대화하는 조건을 제시하고자 한다. 또한 Euro-6 이상의 규제에 대응할 수 있도록 Urea-SCR에 대한 정밀한 실험 데이터를 제공하고자 한다. Diesel engines have important advantages over its gasoline counterpart including high thermal efficiency, high fuel economy and low emissions of CO, HC and $CO_2$. However, NOx reducing is more difficult on diesel engines because of the high $O_2$ concentration in the exhaust, marking general three way catalytic converter ineffective. Two method available technologies for continuous NOx reduction onboard diesel engines are Urea-SCR and LNT. The implementation of the Urea-SCR systems in design engines have made it possible for 2.5l and over engines to meet the tightened NOx emission standard of Euro-6. In this study, we investigate the characteristics of NOx reduction with respect to engine speed, load, types of catalyst and the $NH_3$/NOx ratio and present the conditions which maximize NOx reduction. Also we provide detailed experimental data on Urea-SCR which can be used for the preparation for standards beyond Euro-6.

군용차량 배출가스 규제 개선에 관한 융합적 고찰

윤흥수 한국융합학회 2020 한국융합학회논문지 Vol.11 No.1

Civil technologies and parts occupy big ratio in military vehicle as military supply goods were commercialized. In case of the military vehicle engine, the civil purposed engine has been militarized without developing engine for defense industry. Because of this, it happens that Euro-5 version is mounted in spite of Euro-6 at present because the civil laws on the civil purpose engine and required operational capability for militarization are applied by overlapping. Therefore, this study focused on current situation and issues on the military vehicle emission regulation and suggested how to improve through analyzing the theses, articles, Korean laws and systems. For improving methods, imposing the emission certification duty and exempting the certification for the vehicle of high strategical importance were suggested through aligning the related laws. Consequently, it is expected that this study will be used for basics of checking the civil laws and connection with military systems for commercialization of military supplied goods. 군용차량은 군수품 상용화에 의해 민수 기술 및 민수품의 비중이 크다. 군용차량 엔진의 경우 방산용 엔진을 개발하지 않고 민수용 엔진을 군용화 하고 있다. 이로 인해 민수용 엔진에 대한 민간 법령 및 군용화에 필요한 작전요구성능이 이중으로 적용되어 현재 유로-6임에도 불구하고 유로-5 버전이 탑재되는 현상이 발생한다. 이에 본 연구는 논문, 기사, 국내 법령 및 제도 등을 분석하여 군용차량 배출가스 규제의 현 실태 및 문제점을 고찰하고 개선방안을 제시하였다. 개선방안으로 관련 법령을 정비하여 배출가스 인증 의무를 부과하고 전략적 중요도가 높은 차량에 한해 인증을 면제하는 방안 등을 제시하였다. 이로써 향후 군수품 상용화에 따른 민간법령 및 군 제도의 연계성을 점검하는데 기초연구로 활용될 것으로 기대된다.

Nylon 6과 Hexachlorocyclotriphosphazene 과의 反應에 關한 硏究

尹興洙 慶北工業專門大學 1980 論文集 Vol.17 No.-

Chlorine substitution reactions of hexachlorocyclotriphosphazene with Nylon 6 in Dioxane medium were studied under various experimental conditions. The extent of reaction was estimated with the weight method and HCI. method. The reaction rate was increased with the increasing the concentration of reagent and increased in propotional to the reaction time. And also the molecular cross-linking was observed. The reaction of Nylon 6 with hexachlorocyclotriphosphazene was the approximately pseudo-first order reaction of the concentration of hexachlorocyclotriphosphazene and the activation energy of reaction was about 10.783k㎈/mole.

운행차량 배출가스 정기검사를 위한 군용 가솔린 HEV의 분류체계 연구

윤흥수 한국방위산업학회 2023 韓國防衛産業學會誌 Vol.30 No.3

최근 요소수 품귀 현상으로 국내 에너지 안보 위협을 겪으며 탈디젤의 공감대가 커지고 있다. 군용차량도 예외는 아니다. 특히, 친환경을 중시하면서 가솔린 HEV 시대가 열리고 있는데, 향후 군용 가솔린 HEV의 운행차량 배출가스 정기검사를 효과적으로 시행하기 위해서는 가솔린 군용차량의 분류체계가 정립되어야 한다. 이에 본 연구는 목적론적 해석을 통해 관련 법제체계를 분석하여 군용 가솔린 HEV의 분류체계를 정립하고 그 적용방안을 제시하였다. 주요 연구결과로, 군용 가솔린 HEV 를 중・대형 특수자동차로 분류하고 운행차 배출허용기준을 일산화탄소 2.5% 이하, 탄화수소 400ppm 이하, 공기과잉률1±0.1 이내로 적용하는 방안을 제시하였다. 이 논문은 향후 군용 HEV를 전력화할 때, 필요한 법률과 제도를 검토하는 데기초연구로 활용되리라 예상된다. Recent scarcity of urea solution endangers domestic energy security, and the bond of sympathy increasingly becomes high. The military purposed vehicles are not exceptional either. In particular, gasoline HEV era has been emerging while setting much value on the importance on environment friendliness. The classification system on military purpose gasoline vehicles should be established in order to perform the regular inspection on the emissions of military gasoline HEV. Therefore, this study analyzed related legal framew orks via purposive analysis, established classification system on military purpose gasoline HEV and suggested the idea of its application. In conclusion, this study suggested to classify the military purpose gasoline HEV as a special vehicle and to regulate the emissions standard of in-use vehicle within mono dioxide, 2.5%, hydrocarbon 400ppm and excess air factor, 1±0.1. It is expected that this paper will be used for basic research in reviewing laws and regulations required for power making of military HEV in the future

Diaminotetrabromophenoxycyclotriphosphazene에 의해 경화된 에폭시수지의 내약품성

尹興洙 慶一大學校 1997 論文集 Vol.14 No.2

1, 1-diamino-3, 3, 5, 5-tetra-(p-bromophenoxy)cyclotriphosphazene (ABPP) and 1, 1-diamino-3, 3, 5, 5-tetra-(p-chlorophenoxy)cyclotriphosphaene(ACPP) was prepared fromhexachlorocyclotripho-sphazene and used for the curing agent of bisphenol A type epoxy resin(EPIKOTE 828)and phenol novolak(EPIKOTE 154). The resistance to chemicals and water of the cured epoxy resins were examined by DMA and compared with those of the epoxy resins cured with ACPP and 4, 4' diaminodiphenylmethane(DDM). The effect of the curing agent on resistance to chemicals and water of the cured epoxy resins were investigated. The epoxy resins cured with ABPP showed superior resistance to chemicals and water to those of ACPP and DDM. It is an effective curing agent for epoxy resins to enhance the resistance to chemicals, water and flame proofing.

絹 Fibroin 과 Hexachlorocyclotriphosphazene과의 反應에 관한 硏究

尹興洙 慶北工業專門大學 1980 論文集 Vol.17 No.-

The reactions of hexachlorocyclotriphosphazene(PNCl₂)₃ with sodium metallated silk fibroin in monochlorobenzene medium were studied under various experimental conditions. Effects of a swelling pretreatment in DMSO-Methanol solution, Na metallation time and sodium methoxide concentration upon the degree of the metallation were investigated. Degree of Na. metallation was gradually increased with the increasing concentration of reagent and also the reaction time. The wrinkle recovery property of the silk fabric was much improved.

Hexachlorocyclotriphosphazene 處理에 의한 Ramie Fabric의 物性變化

尹興洙 慶北工業專門大學 1983 論文集 Vol.20 No.-

Ramie fabrics were metallized with sodium methoxide in absolute methanol or a mixed solvent consisting of CH?OH and dimethyl sulfoxide(DMSO) (1:1 V/V) and metallized ramies were allowed to react with Hexachlorocyclotriphosphazene [(PNCl?)?; PNC} in monochlorobenzene (MCB). Effects of swelling pretreactment in methanol or DMSO, Na metallization time, and methoxide concentration upon the degree of the metallization were investigated. The degree of Na metallization increased with CH?ONa concentration for the methanol-or DMSO-swollen ramie and the degree of metallization was higher for the lattar. The higher degree of Na metallization was obtained on the exchange reaction with CH?ONa in the mixed solvent (1:1, CH?OH:DMSO). The degree of the chlorine substitution reaction of PNC with Na metallized ramie was increased with the PNC concentration and also the reaction time. Flammability and some mechanical properties of the treated fabric were evaluated. The wrinkle-recovery and flame-retardant of the ramie fabric were much improved.

디아미노테트라클롤로시크로트리포스파젠에 의해 경화된 DGEBA의 내수·내약품성

윤흥수 경일대학교 산업기술연구소 1999 産業技術硏究所 論文集 Vol.6 No.-

1, 1-diamino-3, 3, 5, 5-tetrachlorocyclotriphosphazene was prepared from hexachlorocyclotriphosphazene and used for the curing agent of diglycidyl ether bisphenol A. The resistance to chemicals and water of the cured epoxy resins were examined by DMTA and compared with those of the epoxy resins cured with 1, 1-diamino-3, 3, 5, 5-tetra-(p-bromophenoxy)cyclotriphosphazene, 1, 1-diamino-3, 3, 5, 5-tera-(p-chlorophenoxy)cyclotriphosphazene, and 4, 4, diaminodiphenylmethane. The effect of the curing agent on resistance to chemicals and water of the cured epoxy resins were investigated. The epoxy resins cured with 1, 1-diamino-3, 3, 5, 5-tetrachlorocyclotriphosphazene showed superior resistance to chemicals and water to those of 1, 1-diamino-3, 3, 5, 5-tetrachlorocyclotriphosphazene showed superior resistance to chemicals and water to those of 1, 1-diamino-3, 3, 5, 5-tetra-(p-chlorophenoxy)cyclotriphosphazene and 4, 4 diaminodiphenylmethane. It is an effective curing agent for epoxy resins to enhance the resistance to chemicals, water and flame proofing.

Diminotetrefluorophenoxycyclotriphosphazene에 의해 경화시킨 에폭시 수지의 동적점탄성과 열적성질

尹興洙 慶一大學校 1999 論文集 Vol.16 No.5

1, 1-diamino-3, 3, 5, 5-tetrafluorophenoxycyclotriphosphazene was prepared from hexachlorocy-clotriphosphazene and used for the curing agent of phenol novolak type and diglycidyl ether bisphenol A. The effect of the curing agent on the dynamic viscoelastic properties, flame proofing, and heat resistance of the cured epoxy resins were investigated and compared with those for the epoxy resins cured with aliphatic amine and aromatic anime. The epoxy resin cured by 1, 1-diamino-3, 3, 5, 5-tetrafluorophenoxycyclotriphosphazene showed the highest storage modulus and glass transition temperature when cured at postcure temperature, 190℃ for 6 hours. The epoxy resins of phenol novolak type cured with 1, 1-diamino-3, 3, 5, 5-tetrafluoro-phenoxycyclotriphosphazene showed superior flame proofing to those of diglycidyl ether bisphenol A, aliphatic amine, and aromatic amine. Particularly 1, 1-diamino-3, 3, 5, 5-tetrafluorophenoxycy-clotriphopphazene was an effective curing agent for epoxy resins to enhance the storage modulus, flame proofing, and resistance to heat.