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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Textile Science and Engineering
Journal Basic Information
Journal DOI :
The Korean Fiber Society
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Volume & Issues
Volume 45, Issue 6 - Dec 2008
Volume 45, Issue 5 - Oct 2008
Volume 45, Issue 4 - Aug 2008
Volume 45, Issue 3 - Jun 2008
Volume 45, Issue 2 - Apr 2008
Volume 45, Issue 1 - Feb 2008
Selecting the target year
Black Dyeing of PET with Disperse Dyes of Three Primary Color
Kim, Hae-Rim ; Jang, Hae-Kyoung ; Lee, Jung-Jin ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 331~336
In black dyeing of PET fabric, high concentrations of disperse dyes of three primary color are generally required, which leads low exhaustion level of dyes and discharge of unfixed dye into dyehouse effluent. In this study, the effect of combination ratio of dye concentration, liquor ratio, and dyeing pH on dyeing and color property of black dyed PET fabric was investigated. From the results, high K/S values and low lightness
of PET fabric could be obtained with relatively small amount (1%owf) of yellow dye on condition that red and blue dye were used in high concentration. The dyeing results of red dye were consistent with those of yellow dye while blue dye did not follow the trend. Use of small amount of blue dye and large amount of yellow and red dyes resulted in PET fabric of grayish red color instead of black. Dyeing and color property of black dyed PET fabric were found to be dependent upon dyeing pH while not on liquor ratio.
Preparation and Characteristies of Chemically Modified Silk Sericin/Chitosan Complex Films
Yoon, Heung-Soo ; Nagata, Kenji ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 337~345
Polar amino groups of the waste SS(silk-sericin) and hydroxyl groups of the chitosan were modified by isocyanate compound of MOI[2-(methacryloyloxy)ethyl isocyanate] and MAC(methacryloyl chloride), respectively. When the MOISS(MOI-modified silk sericin)/MACS(MAC-modified chitosan) blend system was pressed with high temper ature, vinyl groups in the MOI or MAC were polymerized and then the flexible and transparent films were obtained. By the polymerization of vinyl groups in the MOISS/MACS blend system, tensile moduli and strengths of the MOISS/MACS blend films exhibited highest level in blend ratio of MOISS/MACS=20/80. The MOISS/MACS blend films exhibited similar solubility to the distilled water
regardless of the MOISS/MACS blend ratios and also higher swell ratios to the distilled water(room temperature) as the MACS contents increased. With increasing MACS content, BOD(biochemical oxygen demand)/TOD(theoretical oxygen demand) decreased.
Synthesis of Poly(vinyl pivalate) and Its Block Copolymers by Cobalt-Mediated Radical Polymerization
Jeon, Hyun-Jeong ; Park, Mi-Seon ; Park, Dong-Min ; You, Young-Chang ; Youk, Ji-Ho ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 346~352
Controlled radical polymerization of vinyl pivalate (VPi) was achieved by cobalt-mediated radical polymerization (CMRP) using cobalt(II) acetylacetonate (Co
) and 2,2'-azo-bis(4-methoxy-2,4-dimethylvaleronitrile) (V-70). Poly(vinyl pivalate) (PVPi) chains having controlled molecular weights and low polydispersities (
=1.05-1.29) were successfully synthesized. PVPi macroinitiator (
=1.13), which was end-capped by Co
was used to successive CMRP of well-defined PVPi-b-poly(vinyl acetate) (PVPi-b-PVAc) and PVPi-b-poly(acrylonitrile) (PVPi-b-PAN) block copolymers at 30 DC. The polymerization of PVPi-b-PV Ac was performed via a degenerative chain transfer (DT) mechanism using an excess of V-70. PVPi-b-PAN was synthesized via a reversible termination (RT) mechanism in DMF.
Preparation of Silsesquiazane Nanofibers Using Electrospinning Techniques
Kang, Sang-Wook ; Kwon, O-Min ; Choi, Hyung-Min ; Kwark, Young-Je ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 353~358
Nanofibers of phenylsilsesquiazanes (SSQZ), as a precursor of inorganic silicon nitride nanoweb, was prepared using the electrospinning process. The SSQZ was prepared by ammonolysis of phenyl trichlorosilane and condensation of the resulting aminosilanes. The molecular weight of resulting SSQZ increased with initial concentration of phenyl trichlorosilane, reaching plateau above 20wt% of the silane. When the SSQZ was electrospun alone, it did not form fiber even with 20wt% concentration of SSQZ. However, it was possible to prepare fibers by adding poly(ethylene oxide) (PEO) as a viscosity enhancer. The diameter the of electro spun fibers was modified by the total polymer content and the content of PEO. The best result was obtained when the total concentration of the polymer was in the range of 15 to 20 wt% while the SSQZ/PEO ratio was 95/5.
Comparison of Characteristics of Multi-walled Carbon Nanotubes Functionalized Using Various Methods
Park, Gi-Ryoung ; Kim, Jun-Suk ; Jeong, Young-Jin ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 359~363
Functional groups on multi-walled carbon nanotubes (MWNTs) were introduced by UV/ozone treatment, reacting with
alone or with
mixture followed by drying under different conditions. The resulting MWNTs were characterized using a UV-visible spectrometer, SEM, FT-IR, elemental analyzer, and TGA. The amount of oxygen was measured with elemental analyzer and used to check the degree of functionalization on the MWNT surface. Among the various methods tested, the one using
introduced highest amount of carboxyl groups on the carbon nanotubes, while it damaged the MWNTs. Also, even with the similar amount of functional groups, dispersibility of the functionalized MWNTs in water was differed according to the functionalization method. The carbon nanotubes functionalized by reacting with
started to degrade at lower temperature than the ones treated by other methods, which was due to the defects introduced during functionalization.
Preparation of Cladding Polymers for Plastic Optical Fibers - Miscibility and Interfacial Adhesion of PMMA/THV Blends -
Park, Eun-Ju ; Park, In-Cheol ; Lee, Moo-Sung ; Park, Min ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 364~369
We investigated the miscibility of poly(methyl methacrylate) (PMMA) and random copolymers of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride (THV) blends and their interfacial adhesion as part of the development of cladding materials for PMMA based plastic optical fiber. Three different types of THV with different copolymer composition were used as candidates for them. PMMA/THV blends being melt-mixed at
showed typical immiscible morphology and the glass transition temperatures of the component polymers did not change after mixing. However, tie chains connecting matrix and dispersed phase were identified when THV with high content of vinylidene fluoride, i.e., THV220 was used. In spite of the intrinsic immiscibility of PMMA/THV blends the interfacial adhesion obtained from peel test was above
at the adhesion temperature of
and increased with increasing the temperature for THV220. From the melt viscosity data of the polymers it was recommended that the extrusion temperature of THV should be higher than that of PMMA in order to obtain smooth interface between core and cladding layer.
Observation of Spinline Behavior during Polyacrylonitrile Electrospinning Process
Jeong, Kwang-Nam ; Kim, Hyung-Sup ; Seo, Moon-Hwo ; Lee, Yu-Jin ; Cho, Kwang-Soo ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 370~377
The spinline behavior during electro spinning process was observed using high speed expose photography and line-laser scattering. The spinline was rotated with high speed around the nozzle after it was spun from the nozzle. Also it moved toward to the collecting plate at the same time. It resulted that the total spinline became similar to a bell shape having empty room inside. The electropsinning processing parameters such as concentration, applied voltage, air pressure and TCD showed significant influences on the spinline behavior.
Evaluation of Drainage Capacity of Cylindrical Drain Board by Clogging
Jeon, Han-Yong ; Lee, Kwang-Yeol ; Kim, Hyun-Joong ; An, Byoung-Wook ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 378~381
Two different core shapes of cylindrical drain are used to evaluate the drainage capacity with consideration of clogging effects on their filter jackets for an applied confining pressure. Column tests with radial drainage system were conducted under confining pressure of 50 kPa for 13 days. Two parameters which are discharge and accumulated volume of water drained were measured as the time elapsing. At the initial stage before the clogging developed enough, the cylindrical drain with angular-type-plastic-core could produce discharge twice higher (maximum) than those with round-type. After 13 days had passed on, cylindrical drain with angular-type-plastic-core could produce discharge only 20% higher than those with round-type one.
Simulating the Bundle Thickness Output from the Fiber Length Distributed Bundle Drawing Process
Kim, Jong-S. ; Huh, You ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 382~394
Bundle consists of fibers that have a length distribution, which influences the flow dynamics in a roller drafting process. Since the dynamic behavior of bundle in the flow system can lead to the thickness variation of the output, the fiber length distribution was taken into the dynamic model describing the bundle flow, and the dynamic characteristics and the output bundle thickness were investigated by simulation, while the process factors such as the draft gauge and the draft ratio were considered. Introducing velocity variance models for different fiber length distributions and a simplified sinusoidal velocity variance into the bundle flow dynamics, the output bundle thicknesses were compared each other. The state variables in a steady state showed that the bundle with a uniform fiber length can get a stronger jerk than the bundle with a fiber length distribution, when crossing over the front roller nip line. The bundle flow dynamics could be characterized by oscillatory behavior with a decaying magnitude or an increasing magnitude with an upper limit, which is dependent on the process variables. It was confirmed theoretically that as the draft gauge increases, the output bundle thickness becomes more uniform, while the draft ratio has the opposite effect on the out-put. The critical draft gauge that defines the bordering zone between unstable and stable behavior of the output bundle thickness was about 1. 25 times of the maximum fiber length. The critical draft ratio revealed different results for bundles with a uniform fiber length and a fiber length distribution: for the uniform fiber length the critical draft ratio has a value below than 25, for a fiber length distribution it lies in the zone greater than 25, which demonstrates that the fiber length distributed bundle is roller drafted better that the uniform fiber length bundle. The simplified velocity variance model could be effectively applied to describe the flow dynamics that consists of bundles with a fiber length distribution or even with a uniform fiber length.
A Study on the Durability Change of Fire Fighter's Protective Cloth (I) - Protective Cloth Worn in the Domestic Fire Extinguishing Field -
Kim, Do-Sik ; Shim, Hyun-Joo ;
Textile Science and Engineering, volume 45, issue 6, 2008, Pages 395~400
It has generally been recognized that the fire protective cloth is one of the most important fire extinguishing equipments because it governs the efficiency of fire suppression as well as the safety of fire fighter's life. There are diverse circumstances in a blazer, thus, the protection functions from these dangers are the basic requirements of fire protective cloth. The fire protective cloth needs barrier functions from external heat, mechanical hazards, toxic chemicals, and so on and also needs the emission functions of wearer's body heat and sweat. When the cloth is worn repeatedly in the fire extinguishing field, it should be damaged and could not work properly in the long run. However, the fire protective cloth is very expensive and cannot be accommodated so frequently. For this purpose, this research was done as a part of work to set up the life time of the fire protective cloth. To evaluate the durablility, the change of mechanical properties the fire protective cloth worn by fire fighters for one year in the fire extinguishing field were compared with the new one. The tensile properties of the outer fabric of the cloth were damaged mostly by radiant heat and day light, however, the water proof properties of mid layer were reduced by repeated bending and washing. The decline of fabric physical properties of radiant heat was greater under wet state than under dry state.