• 한국염색가공학회지
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• 제14권5호
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• pp.268-276
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• 2002

Poly(trimethylene terephthalate)(PTT) and Poly(ethylene terephthalate)(PET) fibers were annealed at various temperatures ranging from $100^\circ{C}$ to $230^\circ{C}$ for 10 min under tension and tension free. Dyeing rates and absorption isotherms of both fibers were obtained with C.I. Disperse Red 60 at 100, 120 and $130^\circ{C}$ in water system. Also X-ray diffraction pattern, moisture regain and water absorption were investigated. The dyeing rate of PTT fiber is faster than PET fiber, and dyeing of PTT fiber begin at lower temperature compared to PET fiber. The absorption isotherms from both fibers with disperse dye we nearly linear up to the saturation dye uptake, which increase with dyeing temperature. Equilibrium dye uptake of PTT fiber annealed under tension above $180^\circ{C}$ was remarkably decreased because of a changes in the fine structure of fiber. The intensities of X-ray diffraction peaks of both annealed fibers were increased with increasing in annealed temperature. The reflections observed at $2\theta$=$15.8^\circ$, $24^\circ$ and $25.2^\circ$ were assigned reflection of crystal at the planes of (010), $(1\bar02,\;\bar112),\;and\;(\bar13,\; \bar113)$ respectively, and the peak became sharp with heat setting temperature.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2003년도 봄 학술발표회 논문집
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• pp.329-330
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• 2003

In general, the thermoplastic elastomers have the elastic recovery property caused by phyical crosslinks after the stress is applied. Segmented block copolyetheresters also have been used as elastomers. Many$\^$l-2/ tried to improve the elastic recovery of those which are less elastic than polyurethane. We confirmed that the copolyetherester based on poly(2,6-butylene naphthalate)(PBN) ha.4 segment had the high melting temperature, whcih was useable at the broader temperature range and the one based on poly(1,3-trimethylene terephthalate)(PTT) the high crystallinity, which would be expected to get the high elastic recovery. (omitted)

• 한국의류학회지
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• 제28권6호
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• pp.819-829
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• 2004

This study was carried out to suggest a new swimsuit fabric with improved durability, comfort and appearance, by employing PTT(polytrimethylene terephthalate). Objective and subjective performances of newly woven PTT/PU (polyurethane) blend fabric were estimated and compared with nylon/PU(80/20) which is currently used for swimsuit. According to the questionnaire, the most serious problems of swimsuit fabrics were such that they were easily degraded by chlorinated water and this made fabric inelastic and transparent. After exposure to the chlorinated water, PTT blend fabrics showed higher retention of breaking strength, bursting strength, elastic recovery and crystallinity. suggesting that PTT/PU(87/13) was the most excellent material in durability. PTT blend fabrics absorbed less water and dried faster than nylon/PU and thus PTT/PU(87/13) was shown to be the best in respect of comfort. All of the specimens used in this study exhibited satisfactory colorfastness to sea water, chlorinated water and light except that nylon/PU(80/20) represented weak colorfastness to chlorinated water. From the subjective wearing sensation test, PTT/PU(82/18) was shown to posess the best wearing sensation. From the overall evaluation or objective and subjective properties, PTT blend fabrics exhibited superior performances to nylon/PU(80/20), suggesting that they can be successfully used as a new durable and comfortable swimsuit fabric.

• 한국염색가공학회지
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• 제15권4호
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• pp.8-16
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• 2003

Poly(trimethylene terephthalate)(PTT) fiber was pretreated with organic solvent/water solution of various compositions. The organic solvents used in this experiment were benzyl alcohol, n-buthanol, and N,N-dimethylformamide(DMF). Density of the fibers were investigated as a measure of crystallite region. The dye uptake increased in the order of pretreatment with hot water < untreated < 5% benzyl alcohol < 100% benzyl alcohol < 90% benzyl alcohol; hot water < untreated $\risingdotseq$ 5% butanol < 100% beutanol < 90% butanol; hot water $\risingdotseq$ 5% DMF < untreated < 90% DMF < 100% DMF. The dye uptake increases with increase of crystallinity. It seems likely that the recrystallization process during the pretreatment with organic solvent/water solutions leads to an increase in the microvoid and then a large increase in the dye uptake. Also the dyeing rate increased and the dyeing transition temperature decreased with the pretreatments. The results obtained are corresponds with the plasticization of the fiber structure formed during the pretreatrnent.

• 한국화재소방학회논문지
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• 제23권6호
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• pp.1-9
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• 2009

본 연구에서는 나일론, 폴리프로필렌, PTT(poly(trimethylene terephthalate)), 양모(wool), 그리고 나일론/양모로 이루어진 5 종류의 카페트에 대한 연소거동을 열류량 $50kWm^2$의 콘 칼로리미터를 이용하여 평가하였으며, 가스유해성 평가는 KS F 2271의 시험방법에 따라 평가하였다. 콘 칼로리미터 실험결과 나일론 카페트는 쉽게 불이 붙는 것을 알 수 있었다. 점화 정도 혹은 초기 가연성은 나일론/양모로 이루어진 카페트가 가장 높은 값을 나타냈다. 불의 세기인 열방출량은 폴리프로필렌 카페트가 가장 큰 것으로 나타났다. 나일론 카페트가 가장 높은 연기 발생량을 보인 반면, 나일론/양모로 이루어진 카페트는 가장 낮은 가스 발생량을 나타냈다. 질량 감소율은 나일론/양모 >양모 >나일론 >폴리프로필렌 >PTT 카페트 순으로 나타났다. 연소 시 발생하는 유해성 가스인 일산화탄소의 경우 PTT에서 가장 많은 발생량을 보였으며, 나일론과 양모로 이루어진 카페트에서 가장 적은 양이 발생됐다. 이산화탄소의 발생량은 폴리프로필렌이 가장 높았으며, 나일론/양모 카페트에서 가장 낮은 값을 나타냈다. 쥐의 행동정지시간을 통해 살펴 본 결과 카페트류의 가스유해성은 PTT 카페트가 가장 해로운 것으로 나타났다.

• 폴리머
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• 제29권2호
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• pp.190-197
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• 2005

유기화 점토인 도데실트리페닐포스포늄-몬모릴로나이트$(C_{12}PPh-MMT)$를 이용한 세가지 서로 다른 폴리에스테르 나노복합재료의 열적, 기계적 성질 및 모폴로지 등을 서로 비교하였다. 매트릭스 고분자로 폴리(부틸렌 테레프탈레이트)(PBT), 폴리(에틸렌 테레프탈레이트)(PET)와 폴리(트리메틸렌 테레프탈레이트)(PTT) 등을 사용하여 폴리에스테르 나노복합체 섬유를 만들었다. 각 나노복합체 섬유의 물성들은 첨가된 유기화 점토의 양과 연신 비에 따라 변하였다. 전자현미경으로 관찰된 섬유 중 점토의 일부는 나노크기로 잘 분산 되었으나 한편으로는 동시에 뭉쳐진 형태도 보였다. 본 연구로부터 소량의 유기화 점토의 첨가가 나노복합체 섬유의 열 안정성과 기계적 성질을 증가시키는데 크게 기여하였음을 알았고, $5\;wt\%$ 이하의 소량의 점토만으로도 순수한 매트릭스 고분자 섬유의 강도나 탄성률보다 더 높은 값을 보여주었다. 연신 비가 증가할수록 모든 고분자 복합체 섬유의 강도와 탄성률은 서서히 감소하였으나 PTT의 초기 탄성률은 연신 비에 무관하게 일정하였다.