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심색성 극세 폴리에스터 제조용 Poly(ethylene terephthalate/trimethylene terephthalate) (P(ET/TT))의 합성 및 특성
이종순,최영근,김도균,김갑진,Lee, Jong-Soon,Choi, Young-Gun,Kim, Do-Kyun,Kim, Kap-Jin 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.4
Polyester microfiber has usually greater dye uptake than normal denier polyester fiber at the same dyeing condition. Though polyester has high dye uptake, dyed microfiber fabric has not only low visual colour depth but also poor washing fastness property. In order to improve this dyeing property, poly(ethylene terephthalate/trimethylene terephthalate)(ET/TT) was synthesized with various TT content using DMT process. The feed ratio of TT was varied from 5-30 mol%. The content of TT unit in P(ET/TT) was higher than the feed ratio of TT. The physical properties, dyeing properties, and wet fastness of P(ET/TT) were investigated. Melting $point(T_m)$ and glass transition $temperature(T_g)$ of P(ET/TT) decreased with increasing content of TT unit. P(ET/TT) could be dyed at lower temperature than homo PET with increasing TT feeding content. Alkaline dissolution behavior of P(ET/TT) was also examined as a function of TT content.
공단량체 bisesterdiamide 'T3T-dimethyl'을 사용한 폴리(트리메틸렌테레프 탈레이트)계 폴리에스터아미드의 합성과 특성분석
이종순,오태환,김갑진,Lee, Jong Soon,Oh, Tae Hwan,Kim, Kap Jin 한국섬유공학회 2005 한국섬유공학회지 Vol.42 No.6
In order to impart new functions to poly(trimethylene terephthalate) (PTT) and to remove several well-known disadvantages of PTT such as changes in physical properties with ageing especially for undrawn and/or partially drawn PTT yarn a new type of polyesteramide based on PTT, poly(trimethylene terephthalate-co-trimethylene terephthalamide) [P(TT/TA)], has been synthesized using dimethyl terepthalate (DMT), T3T-dimethyl ((benzoic acid, 4-4'-[1-2-propanediylbis (iminocarbonyl)]bis-dimethyl ester) and 1,3-propanediol as monomers and tetraisopropyl titanate as a catalyst through a DMT process. The feed ratio of T3T-dimethyl was varied from $5-15mol\%$. The content of TA unit in P(TT/TA) was lower than the feed ratio of T3T-dimethyl. Intrinsic viscosity and melt viscosity of P(TT/TA) increased with increasing content of TA unit. Thermal properties of P(TT/TA) were also measured as a function of TA content using DSC and TGA.
글리옥심 리간드를 갖는 가교 폴리스티렌계 킬레이트 수지의 합성 및 특성
이종순,장태화,Lee, Jong-Sun,Jang, Tae-Hwa 한국섬유공학회 1997 한국섬유공학회지 Vol.34 No.9
Chelating resins of crosslinked polystyrene (PS) beads have been prepared by introduction of glyoxime group by subsequent reactions of acylation, oxidation and oximation with hydroxylamine. Ethylene glycol dimethacrylate (EGD) or tetraethylene glycol diacrylate (TGD) was used in the suspension polymerization system of styrene and divinylbenzene (DVB) in order to give hydrophilicity to the beads and 2, 2, 4-trimethylpentane was used as a diluent. It has been found that porous or reticular type PS beads having large surface area is obtainable from this system and they have high capacity of adsorbing metal ions such as $UO^{2+}_2, \;Cu^{2+}, \;Ni^{2+}$dissolved in water due to their high ability of chelation of glyoxime group and enhanced hydrophilicity of the resin due to the presence of hydrophilic crosslinking agent unit. It was also recognized that the largest capacity of adsorption was exibited at pH 4~5 and a high selective adsorption to $UO^{2+}_2$.
PVDF/Poly(ethylene-co-vinyl acetate) 블렌드의 혼화성이 PVDF의 결정구조와 결정화 속도에 미치는 영향(II)
이종순,김갑진,Lee Jong Soon,Kim Kap Jin 한국섬유공학회 2004 한국섬유공학회지 Vol.41 No.6
The crystal structure of the blends of poly(vinylidene fluoride) (PVDF) and poly(vinyl acetate)(PVAc), ethylene/vinyl acetate (20/80) copolymer (PEVAc80), and ethylene/vinyl acetate (30/70) copolymer (PEVAc70) has been studied using a polarizing microscope equipped with a heating stage and an FT -IR spectrometer. The spherulitic morphology in the PVDF/PEVAc blend appeared as three different types, i.e., lamellar splay, concentric, and spiral type. As crystallization temperature and the content of amorphous PVAc and PEVAc80 miscible with PVDF increase, concentric ring and spiral ring type spherulites are formed more easily than in the case of PVDF and a PVDF/PEVAc70 blend system. The extinction band periodicity between the bright zone and the dark zone in the ring-banded spherulites observed under a crossed polarization was found to increase with increasing content of PVAc and PEVAc. Furthermore, the periodic distance between neighboring spiral arms increased from the core to the outer edge, and this may be ascribed to the preferential rejection of PEVAc chains into the inter-spiral regions during crystallization. The FT-IR analysis of samples quenched from the melt to various temperatures shows increase in $\beta-phase$ content as the amounts of PVAc and PEVAc80 blended increase and as the quenching temperature is reduced. In conclusion, the crystal morphology and structure in the PVDFIPVAc and PVDF/PEVAc blend systems were shown to be highly associated with the degree of miscibility of an added amorphous polymer with PVDF.
프리캐스트 모듈 박스구조 연결부 성능검증 실물 재하실험 분석
이종순(J.S. Lee),이준경(J.K. Lee),이성형(S.H. Lee),노형민(H.M. Roh),김희성(H.S. Kim),신정열(J.R. Shin) 한국철도학회 2016 한국철도학회 학술발표대회논문집 Vol.2016 No.5
도심지 도로에서 지하 심도가 깊지 않은 지하 박스구조물을 설치하기 위해서는 가시설과 복공을 설치 후 지반을 굴착하는 방법이 일반적이다. 이 방법은 복공설치 공정과 긴 공사기간 등의 단점이 있으므로 개착식 프리캐스트 모듈구조를 활용한 지하박스구조물을 Top-down 방식으로 시공함으로써 공기단축 및 도심지 도로 복토를 신속히 수행하여 도로 차량의 영향을 최소화하기 위한 연구를 진행 중에 있다. 개착식 프리캐스트 모듈구조 중 벽체 패널간 연결부, 벽체와 상부슬래브와 연결부에 대하여 실물재하실험을 통하여 성능검증 실험을 수행하였다. 실험결과 벽체간 연결부에서는 균열이 발생하지 않음을 확인하였고, 벽체와 상부슬래브 연결부에서는 소요성능 이상의 하중저항이 가능함을 확인하였다. The excavating ground with installation of temporary structures and lining is general construction method for installation of an near-surface underground box-structure in the downtown road. As this general method has shortcomings such as lining installation process and long construction period, the research for rapid construction by constructing an underground box-structure applied with precast module structure with Top-down method is in progress. The performance verification experiment was performed using a full-scale loading test for the connection between wall and upper slab and between wall panels of precast module structure. As the result, it is verified that it was not occurred the crack of connection between walls and that it could resist against the load over the performance requirement in the connection between wall and upper slab.
프리캐스트 모듈간 연결부 방수성능 검증을 위한 실험적 분석
이종순(J.S. Lee),이준경(J.K. Lee),김희성(H.S. Kim),노형민(H.M. Roh),이성형(S.H. Lee),신정열(J.R. Shin) 한국철도학회 2016 한국철도학회 학술발표대회논문집 Vol.2016 No.10
도심지 심도가 얕은 지하 박스구조물은 가시설과 복공 설치 후 지반으로 시공하는 방법이 일반적이다. 이 방법은 복공설치 공정과 긴 공사기간 등의 단점이 있으므로 개착식 프리캐스트 모듈구조를 활용한 지하박스구조물을 Top-down 방식으로 시공하여 공기단축 및 도심지 구조물 상부 복토를 조기 수행하여 도로 차량의 영향을 최소화하기 위한 연구를 진행 중에 있다. 개착식 프리캐스트 모듈구조는 벽체 패널간 연결부, 벽체와 상부슬래브간 연결부의 방수성능이 가장 중요하므로 요소실험을 통한 지하구조물의 가압조건을 반영한 방수실험을 수행하였다. 방수실험은 지수재 종류와 배치를 고려하여 검토하였으며, 실험 결과 복합지수판과 수팽창지수재만 적용하여도 방수효과가 있음을 확인하였다. The excavating ground with installation of temporary structures and lining is general construction method for installation of a near-surface underground box-structure in the downtown road. As this general method has shortcomings such as lining installation process and long construction period, the research for rapid construction by constructing an underground box-structure applied with precast module structure with Top-down method is in progress. The water-proof verification experiment was performed using an element small size of 6 types and full-scale large size of 1 type considered arrangement and installation for water stop and water swelling rubber and its composite combination. As the result, it is verified that composite water-stop and only water swelling rubber have good performance for leakage.