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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Textile Science and Engineering
Journal Basic Information
Journal DOI :
The Korean Fiber Society
Editor in Chief :
Volume & Issues
Volume 49, Issue 6 - Dec 2012
Volume 49, Issue 5 - Oct 2012
Volume 49, Issue 4 - Aug 2012
Volume 49, Issue 3 - Jun 2012
Volume 49, Issue 2 - Apr 2012
Volume 49, Issue 1 - Feb 2012
Selecting the target year
Aircraft Window Frame Manufacturing Method and Property Study
Kim, Hyeong Kab ; Kim, Jae Gwan ; Lee, Joon Seok ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 133~138
DOI : 10.12772/TSE.2012.49.3.133
An aircraft window frame preform manufacturing method with braided fabric or multi-axial warp knitted fabric was proposed. The tensile, bending, and compressive properties of chopped composites, braided composites, and multi-axial warp knitted composites were compared to confirm the mechanical property of braided or multi-axial composites in order to see if they perform better than that of chopped composites. In cases involving a 60% fiber volume fraction, the mechanical properties of the braided composite were 1.8 or 2 times higher than those of the chopped composite.
Effect of Formic Acid Treatments at Elevated Temperatures and Ultrasonication on the Scale Removal and Fiber Splitting of Wool
Bae, Chang Hyun ; Kim, Mi Kyung ; Choi, Woo Hyuk ; Um, In Chul ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 139~146
DOI : 10.12772/TSE.2012.49.3.139
In this study, normal and dichlorodicyanuric acid (DCCA)-treated wool slivers and yarns were immersed in a formic acid solution at elevated temperatures as a pre-treatment in order to accelerate the scale removal and fiber splitting of wool by ultrasonication and the effect of pre-treatment on the morphology and fiber splitting of wools was investigated. As the formic acid concentration, the treatment temperature, and the treatment time increased, the scale removal on wool fiber increased, however, the occurrence of felting and yellowing regarding wool fiber also increased indicating that the treatment with 50% formic acid at
for 3 hours was the optimum pre-treatment condition for wool fiber. The SEM observation revealed that the formic acid treatment on wool at
followed by ultrasonication was the effective tool in order to produce split fibers for both normal and DCCA-treated wool. The comparative study of sliver and yarn revealed that ultrasonication could lead to the fiber splitting of wool sliver whereas it could not result in that of wool yarn. On the other hand, formic acid treatment at
resulted in fiber splitting for both wool sliver and yarn.
Evaluation of Tensile Property and Surface Structure of Hanji Paper Yarn with Different Twist Numbers
Park, Tae Young ; Joo, Chang Whan ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 147~152
DOI : 10.12772/TSE.2012.49.3.147
Hanji paper yarn is a multi-functional and eco-friendly textile material that is excellent in the function of humidity control, absorbency-quick dry, antibiotic, deodorant property. Also, its structural characteristics similar to the filament yarn, brings a unique texture and comfort to the touch. In the present work, two kinds of Hanji tape yarn, HTY-23 (
, 2.0 mm) and HTY-30 (
, 1.5 mm), were prepared and the tape yarn had a yarn count of 23 Ne and 30 Ne, respectively. In addition, we designed most fibers of Hanji paper to be aligned parallel to the machine direction, allowing for a more favorable processing parameter with regards to the production of fine and tough Hanji paper yarn. The twist number showing a maximum breaking stress of HTY-23 and HTY-30 were 600 tpm and 800 tpm, respectively. Especially, the fluff hardly existed on the surface structure of Hanji paper yarn. In addition, yarn irregularity, yarn defective, and the hairiness of Hanji paper yarn were evaluated. Generally, there was no difference of yarn irregularity between HTY-23 and HTY-30 at the twist number showing the maximum breaking stress. The values of yarn irregularity were remarkably low compared to that of cotton spun yarn. Furthermore, yarn defective of Hanji paper yarn showed a similar tendency to the yarn irregularity.
A Study on the Distribution of Contact Pressure of a Flexible Padder
Cho, Kyung Chul ; Jo, Soon Ok ; Park, Si Woo ; Jung, Pyung Suk ; Chun, Du Hwan ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 153~158
DOI : 10.12772/TSE.2012.49.3.153
This is a study to confirm the contact pressure distribution upon changes in horizontal force through finite element analysis of a flexible padder. When there is no horizontal force, the value of contact pressure in the center of the roller is greater than the value of contact pressure at the end of the roller. The results of this study showed that the flexible padder has the optimum value of horizontal force with uniform contact pressure distribution. Measuring the contact pressure in an actual flexible padder drive by using a prescale film, this study proved that the interpretation of finite element analysis reflects reality well. Importantly, the results of this study can be used for deciding the early settings of flexible padder horizontal force.
Enhancement of Solvent-Resistance by Forming Interpenetrating Network for High-Performance Polymer Field-Effect Transistors
Seo, Eunsuk ; Lee, Junghwi ; Min, Hong-Gi ; Lee, Hwa Sung ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 159~164
DOI : 10.12772/TSE.2012.49.3.159
To enhance the solvent-resistance of polymer semiconductor film in organic field-effect transistors, bis(trichlorosily)hexane (BTH) as a cross-linkable agent was mixed with polymer semiconductors, poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-bithiophene] (F8T2) and poly(3-hexylthiophene) (P3HT). The solvent-resistance was dramatically enhanced in both the F8T2/BTH and P3HT/BTH cases, even for the 1% addition of BTH. However, clear differences in the field-effect mobilities with increasing BTH-blend ratio were observed between the F8T2 and the P3HT cases. For the F8T2-FETs, the field-effect mobility was maintained by level of 90% at the 1% BTH-blend ratio, and decreased gradually above 1% blend ratio. In contrast, the field-effect mobilities of P3HT-FETs were dramatically decreased by blending the BTH, although the solvent-resistance was increased. This obvious difference is a result of the difference in crystalline properties between the amorphous F8T2 and the crystalline P3HT. This approach to improve the solvent-resistance of polymer films provides a facile method for the enhancement of the environmental stability in response to humidity and oxygen.
Crystallinity and Diameter Changes of Electrospun Fiber for Different Processing Conditions and Collection Areas
Lee, Haesu ; Park, Beomsu ; Kim, Hyungsup ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 165~168
DOI : 10.12772/TSE.2012.49.3.165
Polyacrylonitrile (PAN) fiber web was manufactured via electrospinning. The applied voltages were controlled at 20 and 25 kV during the electrospinning. In order to study the influences of the applied voltage and the collection area on the diameter and the crystallinity of the resulting fiber, specimens were obtained at the centers and boundaries of the collected web and characterized using SEM and XRD. The applied voltage showed a significant effect on the crystallinity, which increased with the applied voltage. Regardless of the applied voltage, the crystallinity of the fiber collected at the center showed higher values than the one in the boundary. The changes in the crystallinity can be attributed to the strength of the attractive force between the spinline and the collector, and the vaporization of the solvent from the spinline.
Dispersion of Stearic-Acid-Treated CaCO
Song, Junyoung ; Jung, Yoen-Su ; Ham, Min-Kyoung ; Kwark, Young-Je ; Jeong, Young-Jin ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 169~173
DOI : 10.12772/TSE.2012.49.3.169
Calcium carbonate (
) with 15~40 nm average diameter was compounded with polypropylene (PP) in a melted state to form composite materials. To enhance the dispersibility in PP, the surface of the
was coated with hydrophobic stearic acid (SA). The SA-coated
) showed hydrophobic nature, which resulted in rapid precipitation in water. When melt-compounded with PP, SA-
was uniformly distributed throughout the PP matrix, while the uncoated
formed aggregated structures in the PP. At up to 5 wt% of SA-
content, the composites showed well-dispersed structure, although some level of aggregation was observed in the composites with 10 wt% of SA-
. The dispersibility improved with a repeated process of compounding. The melting and crystallization temperatures of PP increased with incorporation of
. The enthalpy of the transitions also increased and the full-width of half maximum of the crystallization peak decreased. However, SA-coating did not produce additional effects on the crystallization behavior of PP. These results showed that the
acted as crystal nuclei.
Mechanical and Electrical Properties of Polyurethane Hybrid Nanocomposites Containing MWNT and Graphite as Conducting Nanoparticles
Kang, Chan Sol ; Jee, Min Ho ; Baik, Doo Hyun ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 174~180
DOI : 10.12772/TSE.2012.49.3.174
The synergistic effects of multi-walled carbon nanotubes (MWNT) and graphite on the structural features and mechanical and electrical properties of polyurethane (PU) nanocomposites were investigated as functions of filler content. SEM images of the PU/hybrid nanocomposite exhibit that the MWNTs and graphite are dispersed well in the PU matrix and form an interconnected network structure. Accordingly, the tensile strength and strain-at-break of the PU/hybrid nanocomposites were much higher than those of the PU/MWNT and PU/graphite nanocomposites at the same filler content. In addition, it is found that the PU/hybrid nanocomposite containing 1.25 wt% MWNTs and 1.25 wt% graphite shows the electrical conductivity of
, which is higher by three orders than that of PU/graphite nanocomposite containing 20.0 wt% graphite. The highly improved mechanical and electrical properties of the PU/hybrid nanocomposite are thought to be due to the interconnected network structure of MWNTs and graphite in the PU matrix.
Mechanical Properties, Comfort, and Bio-Function of PLA Knits Treated with Microcapsules of Citrus Unshiu's Essential Oil
Lee, An Rye ; Sarmandakh, Badmaanyambuu ; Yi, Eunjou ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 181~188
DOI : 10.12772/TSE.2012.49.3.181
This study aimed to investigate the mechanical properties, comfort attributes such as water absorption, water-vapor permeability, as well as air permeability, fragrance release, and antimicrobial activity of PLA knits treated with microcapsules containing Citrus Unshiu's essential oil (MIC-CUEO). As for the mechanical properties by KES, tensile and bending rigidity were slightly increased while surface roughness and compressional energy were reduced. Comfort attributes including water absorption, water-vapor permeability, and air permeability were also declined but not significant. Fragrance release rates were very, which means that the treated PLA could preserve its fragrance feasibly. Finally, lower capsule and binder concentrations such as 3% were shown to provide excellent antimicrobial activity to PLA knits even after 10 repeated launders.
Effect of Mercaptoethanol on the Wet Spinning of Wheat Gliadin Fiber
Kwak, Hyo Won ; Yun, Na Kyong ; Lee, Da Jeong ; Lee, Ki Hoon ;
Textile Science and Engineering, volume 49, issue 3, 2012, Pages 189~193
DOI : 10.12772/TSE.2012.49.3.189
Wheat gliadin is an ethanol-soluble fraction of wheat protein. It has several intramolecular disulfide bonds, which are cleavable by reductants such as 2-mercaptoethanol. We added 2-mercaptoethanol into the dope solution prepared by dissolving wheat gliadin in DMSO. The dope solution was spun into an acetone/methanol coagulation bath. The viscosity of the dope solution was increased and the spinnability was also improved by the addition of 2-mercaptoethanol. A maximum draw ratio of 3.5 was achieved with the addition of 2-mercaptoethanol whereas, that of non-added fiber was only 2. Furthermore, the mechanical properties of the fiber were slightly improved by the addition of 2-mercaptoethanol. These positive effects are due to the increase of chain entanglement by the cleavage of intramolecular disulfide bonds.