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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 51, Issue 6 - Dec 2014
Volume 51, Issue 5 - Oct 2014
Volume 51, Issue 4 - Aug 2014
Volume 51, Issue 3 - Jun 2014
Volume 51, Issue 2 - Apr 2014
Volume 51, Issue 1 - Feb 2014
Selecting the target year
Effects of the Swelling of Polyacrylonitrile Films in Various Aqueous Solutions on Their Reaction with Hydrazine
Park, Heung Su ; Kim, Young Ho ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 159~167
DOI : 10.12772/TSE.2014.51.159
Swelling behaviors of polyacrylonitrile (PAN) films in various aqueous solutions, such as N,N`-dimethylformamide (DMF)/water, N,N`-dimethylacetamide (DMAc)/water, dimethylsulfoxide (DMSO)/water, NaSCN or KSCN solution, the effects of the concentrations of these solutions, and the effects of swelling temperature and time on the degree of swelling of PAN films were analyzed. Among the various aqueous solutions, DMF and NaSCN solution were found to be effective for high swelling of PAN films. High swelling of PAN films in the hydrazine solutions wherein aqueous, organic solvents or salt solutions were used as solvents for hydrazine, resulted in higher absorption of hydrazine and a high degree of cross-linking. Analysis of the bands of FT-IR spectra and the cyclization peaks of DSC curves for various hydrazine-treated PAN films showed that the effective cross-linking of PAN films at the same hydrazine concentration was obtained by using DMF/water or NaSCN/water solutions as solvents for hydrazine and treating medium for PAN films.
Fabrication of Rubbing Cloths with Various Pile Densities for the LCD Process and Their Effects on Rubbing of Polyimide Alignment Layers
Lee, Jang-Ju ; Yoo, Dong-Yeon ; Paek, Sang-Hyon ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 168~173
DOI : 10.12772/TSE.2014.51.168
The mechanical rubbing of a polyimide (PI) layer with a velvet cloth has been dominantly used to induce a uniform alignment of liquid crystal molecules in the manufacturing process of liquid crystal displays (LCDs). The rubbing process is affected by its process parameters and also by the nature and properties of the rubbing cloth used. We fabricated the rubbing cloths with various pile densities and different weaving structures and then investigated how the parameters were related to the effect of the cloth on the rubbing process and the properties of rubbed PI alignment layers (ALs). As the pile density increases at same rubbing process parameters, the degree of molecular orientation of the rubbed AL and its surface roughness increase with an increase of the contact area between the rubbing cloth and the AL surface. Furthermore, a more uniform rubbing is also achieved. The results in this work showed that higher pile density of the rubbing cloth induces a better rubbing effect, which is indeed more favorable to the LCD process. It was also observed that the weaving can exert some influence on the rubbing process.
Preparation and Characterization of Coaltar Pitch-based Activated Carbon Fibers(I) -Effect of Steam Activation Temperature on Textural Properties of Activated Carbon Fibers-
Choi, Bo-Kyung ; Kwac, Lee-Ku ; Yoon, Kwang-Eui ; Seo, Min-Kang ; Park, Soo-Jin ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 174~179
DOI : 10.12772/TSE.2014.51.174
In this paper, the effect of the temperature of steam activation on textural properties of coal tar pitch-based activated carbon fibers (ACFs) was studied. Surface properties of the ACFs were determined by using scanning electron microscope (SEM) and X-ray diffraction (XRD).
adsorption isotherms at 77 K were investigated by BET and BJH methods to characterize specific surface areas, pore volumes, and pore size distributions. The adsorption isotherms of the ACFs were constructed and analyzed to be of Type I, mainly consisting of micropores. The specific surface areas of the ACFs were increased with activation time and showed a maximum value of
at an activation temperature and time of
and 40 min, respectively.
Dyeing Properties of Noni Root Extracts on Silk Fabrics at Various pH Conditions
Choi, Joong Hwan ; Hong, Umji ; Choi, Ran ; Hong, Sunpyo ; Koh, Joonseok ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 180~185
DOI : 10.12772/TSE.2014.51.180
Morinda citrifolia, commercially known as Noni, is a tree that grows widely throughout the Pacific, and is recognized as one of the most significant sources of traditional medicines among Pacific Island societies. The bark and the roots of the tree contain red and yellow pigments respectively, which are both used in the manufacture of dyes. Dyes from Noni are being used traditionally, to color clothing and fabrics. In this study, dyeing properties of Noni root extracts on silk fabrics at various pH conditions were investigated.
Development of a Melt-blown Nonwoven Filter for Medical Masks by Hydro Charging
Im, Kyung Bin ; Hong, Young Ki ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 186~192
DOI : 10.12772/TSE.2014.51.186
In this study, a melt-blown nonwoven filter for medical masks was manufactured using an online hydro charging system. The effects of basis weight (gsm) and die to collector distance (DCD) on the breathing resistance and filtration efficiency were investigated. Hydro charging of the nonwoven web seemed to improve the filtering efficiency. However, it did not affect breathing resistance. It was demonstrated that the breathing resistance and filtration efficiency increased with increasing gsm but decreased with increasing DCD. With a DCD of 19 cm, when the gsm increased from 20 to 50 gsm, breathing resistance increased from 5.14 to 8.33
and filtration efficiency increased from 81.39 to 94.98%. With a basis weight of 25 gsm, when the DCD increased from 15 to 25 cm, breathing resistance decreased from 7.38 to 4.27
and filtration efficiency decreased from 89.56 to 68.28%. In addition, it was demonstrated using stability tests that the hydro charging effect lasted for 13 weeks.
Preparation and Antimicrobial Properties of Nylon 6/Nano-TiO
Lee, Duk Hyeong ; Jo, Seong Min ; Min, Byung Gil ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 193~199
DOI : 10.12772/TSE.2014.51.193
Nanohybrids of nylon 6 and nano-titania (
) were prepared by melt compounding with a twin-screw extruder to investigate antibacterial activity. It was confirmed by field emission scanning electron microscopy (FESEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD) that nano-
was successfully dispersed in the nylon 6 matrix at the level of individual particles. After immersion in an aqueous solution of
at 100 ppm Ag ion concentration, silver was introduced to the nanohybrids through photocatalytic reduction by nano-
under UV (254 nm) irradiation. With increasing nano-
content, the nanohybrids with silver photodeposited on the nano-
. The nylon
-Ag nanohybrids exhibited strong antimicrobial activity against Klebsiella pneumoniae and Staphylococcus aureus in measurements with the shaking flask method.
Performance Evaluation of Isotropic Spunbonded Geotextiles for Vacuum Consolidation
Ahn, Seung Jae ; Kim, Jin Il ; Bok, Jin Seon ; Lee, Hyun Seok ; Jeon, Han-Yong ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 200~206
DOI : 10.12772/TSE.2014.51.200
In this study, the performance of isotropic spunbonded geotextiles, which are used in vacuum consolidation, was tested both in the laboratory and in the field. Two kinds of isotropic spunbonded geotextiles were prepared. One was a matrix/binder structure using low-melting polyethylene terephthalate (PET) copolymer (co-PET) fibers for web bonding. The other consisted of sheath/core (co-PET/PET) fibers. Through the index test, it was seen that the performance of the sheath/core structure isotropic spunbonded geotextiles was better for use with vacuum consolidation than the matrix/binder structure isotropic spunbonded geotextiles. However, the drainage performance test, which simulates a construction environment, showed that the sheath/core structure isotropic spunbonded geotextiles were unstable. The matrix/binder isotropic spunbonded geotextiles showed better results for the drainage test and the field test results for the matrix/binder isotropic spunbonded geotextiles showed that they were suitable for use with vacuum consolidation.
Analytical Approximation of the Relaxation Time Spectrum of Monodisperse Linear Polymer Melts
Choi, Joong Hwan ;
Textile Science and Engineering, volume 51, issue 4, 2014, Pages 207~211
DOI : 10.12772/TSE.2014.51.207
The relaxation time spectrum is a versatile parameter to calculate various polymer viscoelastic properties, such as the relaxation modulus (G(t)), dynamic modulus (G`(
)) and loss modulus (G"(
)). However, it cannot be measured experimentally. This study calculated the relaxation time spectrum using a calculation method based on Fusso-Kirkwood`s theoretical research and using the empirical loss modulus formula. The calculated relaxation time spectrum and Rouse`s model could describe the viscoelastic behavior of monodisperse polystyrene successfully. This analytical approximation of the relaxation time spectrum differed from experimental data in the intermediate region between the reputation and Rouse region. This may have resulted from a limitation of the molecular theory in the Rouse region.