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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Textile Science and Engineering
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Journal DOI :
The Korean Fiber Society
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Volume & Issues
Volume 52, Issue 6 - Dec 2015
Volume 52, Issue 5 - Oct 2015
Volume 52, Issue 4 - Aug 2015
Volume 52, Issue 3 - Jun 2015
Volume 52, Issue 2 - Apr 2015
Volume 52, Issue 1 - Feb 2015
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Influence of Electron Beam Irradiation on the Thermal, Mechanical, and Electrical Properties of Polyethylene/Multiwalled Carbon Nanotube Nanocomposite Films
Yoo, Tae Jong ; Kim, Byungnam ; Jeong, Young Gyu ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 353~360
DOI : 10.12772/TSE.2015.52.353
We report the effects of electron beam (EB) irradiation on the thermal, mechanical, and electrical properties of nanocomposite films, based on polyethylene (PE) and multiwalled carbon nanotubes (MWCNTs), manufactured by solid mixing and melt-compression. For this purpose, the MWCNT content in the nanocomposite films was controlled to 1-10 wt% and the EB irradiation dose was 1-150 kGy. It was found that the melting temperature and enthalpy of pristine PE and its nanocomposite film were improved on using low EB doses of 1 and 10 kGy because of irradiation-induced heating and crosslinking. In contrast, high EB doses of 50 and 150 kGy led to significant reduction in the melting temperature and enthalpy as well crystallization temperature and enthalpy of the films because of chain scission or degradation. The electrical resistivity of the nanocomposite films decreased from
on increasing the MWCNT content, and regardless of the EB irradiation dose, electrical percolation of MWCNTs in the PE matrix was attained at a MWCNT content between 3 and 5 wt%. Accordingly, PE/MWCNT nanocomposite films with low electrical resistivity of
, which were subjected to moderate EB irradiation doses, exhibit excellent electric heating behavior, which depends on the applied voltage and MWCNT content.
Study on Polyhydroxyamide/Carbon Nanotube Nanocomposite Fibers
Jee, Min Ho ; Kang, Chan Sol ; Yeo, Moon Jin ; Baik, Doo Hyun ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 361~366
DOI : 10.12772/TSE.2015.52.361
Polyhydroxyamide (PHA) was synthesized by low-temperature solution polymerization of 3,3'-dihydroxybenzidine and terephthaloyl chloride. Then, pure PHA and PHA nanocomposite fibers, including multi-walled carbon nanotube (MWNT), were prepared by a wet-spinning process. The structural characteristics, thermal properties, and mechanical performances, such as tensile strength, initial modulus, and compressive strength, of the PHA fibers were investigated using FT-IR, TGA, and a tensile testing machine. The TGA results show that the PHA fiber has excellent thermal stability at high temperatures and can undergo thermal cyclization to yield PBO fiber. The tensile mechanical properties of PHA nanocomposite fibers were better than those of pure PHA fiber, and they were improved on increasing the MWNT content. The highly improved mechanical properties of the nanocomposite fibers are thought to be related to the strong interfacial interactions between the PHA matrix and MWNT.
Properties of CF/PA6 Laminate Composites Prepared Using the Carbon Fiber Spreading Technology
Park, Sung-min ; Kim, Myung Soon ; Choi, Yoon Sung ; Lee, Eun Soo ; Chon, Jin Sung ; Yoo, Ho Wook ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 367~372
DOI : 10.12772/TSE.2015.52.367
This paper reports the preparation of CF/PA6 (Polyamide 6) laminate composites using tow-spreading technology. Additionally, the effect of the spread tow on impregnation was investigated by Darcy's law. The thickness of an unspread 12K carbon fiber tow was reduced by increasing the tow width from 7 to 20 mm. The PA6 film was used to stabilize and impregnate the spread tow by covering it with a partially consolidated prepreg:12K carbon fiber spread tow/PA6 film. The laminate composites were fabricated from the prepreg and, for comparison, the other laminate composite was produced from a conventional tow prepreg of 12K carbon fiber/PA6 film. Consequently, the spread tow laminate composite exhibited a lower void content and improved mechanical properties.
A Protein Sensory System Comprising a Fluorescent Conjugated Polyelectrolyte and DNA Aptamer
Son, Jihye ; Kim, Choongho ; Lee, Taek Seung ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 373~378
DOI : 10.12772/TSE.2015.52.373
A water-soluble anionic conjugated polyelectrolyte was successfully synthesized via the Suzuki cross-coupling reaction in the presence of a palladium catalyst. Using this fluorescent polyelectrolyte, a new concept for a rapid, label-free lysozyme-sensing method is proposed via possible naked-eye detection of the emission color change. Intermolecular exciton migration in the conjugated polyelectrolyte-based complex was adopted to enhance the selectivity and sensitivity for lysozyme sensing by the formation and dissociation of the polymer-lysozyme assay complex in the absence and presence of the anti-lysozyme aptamer, respectively. The polymer-lysozyme complex showed red emission because of cooperative aggregation of the conjugated polyelectrolyte and lysozyme. Upon exposure to the aptamer, the complex dissociated into individual molecules, resulting in a transparent blue-emitting solution. This occurred because lysozyme is released from the complex by the aptamer via the more favorable binding between the two molecules (lysozyme and aptamer).
Fabrication of Reduced Graphene Oxide-Incorporated Carbon Nanofibers with Improved Electrical Conductivities by Electrospinning
Park, Kyu-Min ; An, Yongsan ; Kwon, Youbin ; Shim, Wonbo ; Yu, Woong-Ryeol ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 379~387
DOI : 10.12772/TSE.2015.52.379
Herein we report the incorporation of graphene into polyacrylonitrile (PAN)-based carbon nanofibers (CNFs) in order to improve the electrical conductivities of the CNFs. Graphene oxide (GO) was wrapped with PAN molecules to increase its dispersibility, which was verified by zeta potential measurements. The PAN-wrapped GOs were subsequently reduced in a nitrogen and acetylene atmosphere by simple heat treatment. Chemical reduction was confirmed by FT-IR and XRD analysis. These PAN-wrapped reduced GOs were mixed with PAN/DMF solutions and electrospun to produce nanofibers, which were then stabilized and carbonized at
. Finally, the electrical conductivity of the PAN-wrapped reduced GO-incorporated CNFs was characterized; a significant increase in electrical conductivity was observed due to graphene incorporation.
Effects of Phytoncide-containing Cotton Fabrics on the Development of Atopic Dermatitis
Kim, Eui Hwa ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 388~395
DOI : 10.12772/TSE.2015.52.388
In this study, we investigated the effects of phytoncide-containing 100% cotton fabrics on the improvement of atopic dermatitis, through preclinical trials. The finishing agents used for testing were obtained by emulsification (S2), by capsulation (S4) using phytoncide extracted with supercritical
, and by capsulation using solvent-extracted phytoncide (S3). The supercritically extracted phytoncide was used for in vitro testing. In the in vitro test, cytotoxicity occurred at the phytoncide concentrations of 0.1% and 0.5% in stained HaCaT cells and at 0.1% concentration in stained Raw 264.7 cells. In the in vivo test, the infiltration of inflammatory cells into skin tissue was significantly reduced in the S3 and S4 groups relative to the positive comparison group (Positive) of atopic dermatitis. Moreover, from results of the western blot and immunohistochemistry assays of tested skin tissue, we were able to confirm a reducing pattern of the markers related to keratogenesis.
Effect of Structural Parameters on Sound Absorption Property of Spunbond Nonwoven
Lee, Sun Young ; Lee, Ji Eun ; Byun, Tae Woong ; Lee, Seung Goo ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 396~401
DOI : 10.12772/TSE.2015.52.396
Nonwovens have been proposed as a sound absorber in applications of home interior textile industry for effective noise control. Honeycomb cell blind textiles have been increasingly used in window covering for noise reduction. In this study, the effect of structural parameters of honeycomb cell-structured spunbond nonwoven on the sound absorption property was investigated. Spunbond nonwovens with various thicknesses, areal densities, and porosities were used, and they were joined in the form of a honeycomb cell structure with various cell widths and cell layering. The sound absorption property of the nonwoven improved with increasing thickness. The porosity of the nonwoven was shown to be proportional to the noise reduction coefficient (NRC). An increased air gap between two layers of the nonwoven shifted the maximum sound absorption coefficient toward a lower frequency range. The honeycomb cell structure was confirmed to contribute to an improvement of the sound absorption property. Layering of the honeycomb cell structure was also shown to be a critical factor in controlling the sound absorption property of the nonwoven.
Study of Textile Input Interface Design and Operability by Using Capacitance Sensing
Jeong, Jae Hoon ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 402~407
DOI : 10.12772/TSE.2015.52.402
This study proposes a fabric-type input device that provides mobility by using a weighted value based on the movement velocity between 16 individual capacitors composed of conductive textile. In addition, the proposed device measures the rate of change of dielectric permittivity based on pressure or touch and provides the function like a mouse. A capacitor is composed of a conductive material (
), where a coating of copper and nickel is applied to polyester, and the area of the capacitor is
. The lower layer is composed of non-conductive fabric having a thickness of 1.36 mm, and the interval between each capacitor is 8 mm with four columns and four rows. Before touch, the capacitance was 120 pF and after touch, the capacitance increased up to 820 pF. In a monitor having a resolution of
, it was observed that the average mobility of a mouse was 60.89 mm and the standard deviation was 0.92 mm, while for a fabric interface, the average mobility was 965.77 mm and the standard deviation was 7.37 mm.
Effects of Polydopamine Treatment on the Interfacial Adhesion between EPDM Rubber Compound and Polyketone Fiber
Jin, Da Young ; Park, Do Un ; Won, Jong Sung ; Lee, Seung Goo ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 408~415
DOI : 10.12772/TSE.2015.52.408
Polyketone fiber can be used for reinforcing mechanical rubber goods (MRG) such as hoses, tire cords, protective gloves, and ropes. However, the reactivity of the surface of polyketone fibers decreases with a high crystallization of the polyketone fiber. Hence, modification of the surface of polyketone fiber is essential for improving the surface functionality and the fiber-matrix interfacial adhesion. In this study, dopamine treatment has been employed for modifying the polyketone fiber surface in order to improve the adhesion between polyketone fiber and ethylene propylene diene monomer (EPDM) rubber. Chemical composition of the modified fiber surface was examined using energy dispersive spectroscopy (EDS), attenuated total reflectance-infrared spectroscopy ((ATR)-IR), and X-ray photoelectron spectroscopy (XPS). Adhesion properties with the rubber were examined by an H-adhesion test. Surface energy and surface morphology were evaluated using contact angle and scanning electron microscopic (SEM) measurements, respectively. A polydopamine layer was formed on the polyketone fiber surface after dopamine treatment, thereby changing the surface energy via the oxidation polymerization of dopamine.
Surface Modification of Poly(p-phenylene benzobisoxazole) Fiber Using UV-absorbing Agents for Improving the UV Resistance. II. Process Optimization and Performance Assessment
Park, Seong Woo ; Lee, Woo Seung ; Min, Byung Gil ; Baik, Doo Hyun ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 416~424
DOI : 10.12772/TSE.2015.52.416
Improvements of the UV-aging resistance of poly(p-phenylene benzobisoxazole) (PBO) filament yarns, spun yarns, and woven fabrics have been investigated after surface treatment in a continuous process by using polyurethane resin and UV-absorbing and/or UV-stabilizing agents. The UV-aging resistance of PBO specimens was evaluated by tensile strength and reduction rate measurements after exposing the samples to an M400 UV lamp and solar light. A mixture of UV-absorbing (Chiguard
234) and UV-stabilizing (Chiguard
944) agents was found to be more effective compared to individual agents for improving the UV-aging resistance of PBO.
Analysis of Effect of Pore Structure on Water Permeability of Woven Geotextiles
Ahn, Seung Jae ; Jung, Koo ; Yuu, Jungjo ; Kim, Eui Hwa ; Kim, Hong Kwan ; Jeon, Han-Yong ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 425~430
DOI : 10.12772/TSE.2015.52.425
In this study, three-dimensional woven geotextiles with special cords were fabricated using different yarns, and then, the effect of pore structure on the water permeability of these geotextiles was evaluated and analyzed. Weft overlapping structure might have resulted in increased water permeability by creating channels for the fluid to flow. When multifilaments are used, the woven geotextiles exhibit poor air and water permeability despite the large AOS (apparent opening size). This phenomenon is attributed to the spreading of multifilaments by compression. In comparison, the split yarn showed the better air and water permeability under identical conditions. For improving the mechanical properties, it is recommended the higher denier split yarn need to be used for the better water permeable property.
Preparation of Acrylic Tackifiers and Mechanical Properties of Acrylic Pressure-Sensitive Adhesives Containing Acrylic Tackifiers
You, Ryong ; Lee, Seo-Ho ; Park, Won Ho ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 431~437
DOI : 10.12772/TSE.2015.52.431
An acrylate tackifier was prepared for producing high performance acrylic pressure-sensitive adhesives (PSAs). PSAs exhibiting high adhesion values were prepared using 2-ethyl hexylacrylate (2-EHA), 2-carboxyethyl acrylate (
-CEA), and acrylic acid (AA) monomers. The acrylate tackifier was prepared using an acrylic monomer for improving its compatibility with the acrylic PSA. The weight-average molecular weights of PSA and the acrylate tackifier were found to be around
and 20,000-40,000 g/mol, respectively. Physical properties (such as the peel strength, tack, and the holding power) of the mixtures of acrylic PSA with different acrylate tackifiers were enhanced with an increase in the amount of tackifier added.
Directly Patternable Low-k Materials for Flexible Displays with POSS as the Passivation Layer
Im, Hee Eun ; Ko, So-Yeon ; Kwark, Young-Je ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 438~443
DOI : 10.12772/TSE.2015.52.438
The passivation layer, which is located between a pixel electrode and a data electrode, must provide sufficiently low parasitic capacitance and sufficient electrical insulation to reduce cross talk and signal distortion. The present demand for passivation materials for next-generation displays has created interest in substitutes with low dielectric constant, high transmittance, thermal stability, and patternability; these requirements cannot be met by the silicon nitride layer and silicon dioxide used currently. To meet these requirements, negative-tone patterning systems containing polyhedral oligomeric silsesquioxane (POSS) were developed by adopting two different approaches: use of POSS in the polymeric matrix and in the crosslinker. The polymeric matrix, poly(methacryl isobutyl POSS-r-hydroxy styrene), showed improved dielectric property and thermal stability. However, the POSS content was limited owing to poor solubility. A POSS crosslinker with epoxy functional groups was used along with phenol group containing polymeric matrices; poly(4-hydroxy styrene). It was possible to pattern the POSS crosslinker system by irradiating it with UV light and subjecting it to subsequent thermal treatment. With increasing POSS content, the crosslinked materials showed increased transparency, higher thermal stability, and lower dielectric constant. The system could also be patterned by irradiating it with UV through a patterned mask.
A Numerical Study and Material Test for Damping Factor of Carbon-Aramid Fiber Reinforced Plastics Robot Arm
Shin, Dong-Woo ; Kwon, Il-Jun ; Park, Sung-Min ; Park, Yong-Min ; Choi, Jin-Kyung ;
Textile Science and Engineering, volume 52, issue 6, 2015, Pages 444~450
DOI : 10.12772/TSE.2015.52.444
In accordance with the increase in demand for LCDs and the increasing industry competition with higher productivity, the size of LCD glass has been gradually increasing. When transferring a robot hand by setting up an LCD panel, the vibration increases the inertia and load of up and down motion, rotational motion, and mobile motion of the whole robot. With regards to the up and down motion of the robot hand, when time is short on study of the vibration reduction. In this paper, we evaluate the structural arm of an LCD robot by using finite element analysis and fast Fourier transform (FFT). An impact test of the arm, which is made from the composite materials of carbon fiber reinforced plastics (CFRP) and Kevlar fiber reinforced plastics (KFRP) for lightweight and damping, was conducted.