상압가염형 폴리에스터의 염색성을 고분자의 모폴러지, 염색열역학, 염색기구의 측면에서 연구하고자 하였다. 상압가염형 폴리에스터의 화학구조분석, 열특성분석, 엑스선 회절분석, 밀도분석 등을 통해 폴리에틸렌글리콜 ...
상압가염형 폴리에스터의 염색성을 고분자의 모폴러지, 염색열역학, 염색기구의 측면에서 연구하고자 하였다. 상압가염형 폴리에스터의 화학구조분석, 열특성분석, 엑스선 회절분석, 밀도분석 등을 통해 폴리에틸렌글리콜세그먼트의 함량과 더불어 고분자 모폴러지 특성에 미치는 영향등을 고찰하였다. 또한, 고에너지형 분산염료와 저에너지형 분산염료 두가지에 대해 90~130도의 염색온도 조건에서 상압가염형 폴리에스터의 염색성을 일반 폴리에스터와 비교하기 위하여 흡진율, 빌드업성, 염색전이온도, 열역학적 파라미터, 균염성, 견뢰도 등을 비교고찰하였다.
상압가염형 폴리에스터가 유연한 폴리에틸렌글리콜 세그먼트를 함유함으로써 일반폴리에스터에 비해 낮은 결정화도, 배향도 및 유리전이온도를 가져 낮은 온도에서 상대적으로 우수한 염색성을 나타내었다. 100도의 상압온도에서 분산염료에 대한 최적의 염색성을 나타내었으며, 1/1 표준색농도에서 일반 폴리에스터와 비슷하거나 우수한 정도의 제반견뢰도를 나타내었다.
상압가염형 폴리에스터의 염색성을 고분자의 모폴러지, 염색열역학, 염색기구의 측면에서 연구하고자 하였다. 상압가염형 폴리에스터의 화학구조분석, 열특성분석, 엑스선 회절분석, 밀도분석 등을 통해 폴리에틸렌글리콜 세그먼트의 함량과 더불어 고분자 모폴러지 특성에 미치는 영향등을 고찰하였다. 또한, 고에너지형 분산염료와 저에너지형 분산염료 두가지에 대해 90~130도의 염색온도 조건에서 상압가염형 폴리에스터의 염색성을 일반 폴리에스터와 비교하기 위하여 흡진율, 빌드업성, 염색전이온도, 열역학적 파라미터, 균염성, 견뢰도 등을 비교고찰하였다.
상압가염형 폴리에스터가 유연한 폴리에틸렌글리콜 세그먼트를 함유함으로써 일반폴리에스터에 비해 낮은 결정화도, 배향도 및 유리전이온도를 가져 낮은 온도에서 상대적으로 우수한 염색성을 나타내었다. 100도의 상압온도에서 분산염료에 대한 최적의 염색성을 나타내었으며, 1/1 표준색농도에서 일반 폴리에스터와 비슷하거나 우수한 정도의 제반견뢰도를 나타내었다.
The dyeing properties of newly modified polyesters (easy dyeable polyester, EDP) have been investigated with respect to their supramolecular structures and morphologies of the polymer, dyeing thermodynamics and dyeing kinetics..
The dyeing behavior of easy dyeable polyester fibers was compared to th...
The dyeing properties of newly modified polyesters (easy dyeable polyester, EDP) have been investigated with respect to their supramolecular structures and morphologies of the polymer, dyeing thermodynamics and dyeing kinetics..
The dyeing behavior of easy dyeable polyester fibers was compared to that of regular poly (ethyleneterephthalate) fibers. Two different disperse dyes with different molecular size of dyes were used to dye both EDP and PET fabrics. The effects of the molecular size of the disperse dye, dyeing transition temp, exhaustion, color strength (fk value), color difference (ΔE) and levelness parameter (L) were investigated in both the separate dyeing and competitive dyeing methods. The overall colorfastness including wash fastness, rubbing fastness and perspiration fastness were evaluated. The results show that EDP has higher build-up properties especially at lower temperature in both the separate dyeings and competitive dyeings.
Dyeing performance of the easy dyeable polyester and the regular PET were investigated in terms of thermodynamic properties, such as affinity (-Δμo), enthalpy changes (ΔΗo) and entropy changes (ΔSo) with low and high molecular weight of disperse dyes. EDP exhibited the lower negative values of the enthalpy (ΔΗo) and entropy (ΔSo) than PET at various temperatures due to the higher chain segmental mobility of the polymer. The diffusion coefficients of easy dyeable polyester fibers and PET fibers were investigated by using Shibusawa’s approximation of Hill’s equation in a comparative manner.
The dyeing properties of newly modified polyesters (easy dyeable polyester, EDP) have been investigated with respect to their supramolecular structures and morphologies of the polymer, dyeing thermodynamics and dyeing kinetics..
The dyeing behavior of easy dyeable polyester fibers was compared to that of regular poly (ethyleneterephthalate) fibers. Two different disperse dyes with different molecular size of dyes were used to dye both EDP and PET fabrics. The effects of the molecular size of the disperse dye, dyeing transition temp, exhaustion, color strength (fk value), color difference (ΔE) and levelness parameter (L) were investigated in both the separate dyeing and competitive dyeing methods. The overall colorfastness including wash fastness, rubbing fastness and perspiration fastness were evaluated. The results show that EDP has higher build-up properties especially at lower temperature in both the separate dyeings and competitive dyeings.
Dyeing performance of the easy dyeable polyester and the regular PET were investigated in terms of thermodynamic properties, such as affinity (-Δμo), enthalpy changes (ΔΗo) and entropy changes (ΔSo) with low and high molecular weight of disperse dyes. EDP exhibited the lower negative values of the enthalpy (ΔΗo) and entropy (ΔSo) than PET at various temperatures due to the higher chain segmental mobility of the polymer. The diffusion coefficients of easy dyeable polyester fibers and PET fibers were investigated by using Shibusawa’s approximation of Hill’s equation in a comparative manner.
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