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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 42, Issue 6 - Dec 2005
Volume 42, Issue 5 - Oct 2005
Volume 42, Issue 4 - Aug 2005
Volume 42, Issue 3 - Jun 2005
Volume 42, Issue 2 - Apr 2005
Volume 42, Issue 1 - Feb 2005
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Synthesis and Properties of Segmented Block Copolyetherester Elastomers Based on PTT, PBT, PBN and Poly(tetramethylene ether glycol) (I) -Synthesis and Thermal Properties-
Baik, Doo-Hyun ; Kim, Hae-Young ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 217~227
Segmented block copolyetheresters having three kinds of hard segments, i.e., poly(trimethylene terephthalate) (3GT), poly(butylene terephthalate) (4GT), poly(butylene naphthalate) (4GN) combined with poly(tetramethylene ether glycol) (PTMG) as a part of soft segment were synthesized with various hard segment contents. The number average molecular weights of PTMG selected were 1000, 2000, and 2900. The effects of hard segment content (HSC) and hard segment length (HSL) on the thermal properties of copolyetheresters were studied. Melting temperature
was found to be a function of HSL for all the copolymers examined. Even at the very short HSL, 3GT and 4GN showed relatively high
of 4GT decreased considerably. The 3GT hard segment showed highest hard segment crystallinity among the three, which implied that 3GT copolyetheresters had higher degree of phase separation and more stable crystalline phase in the copolyetherester elastomer than 4GT and 4GN.
Thermal Degradation Behavior of Poly(alkylene terephthalate)s
Kim Ki Jeong ; Yeo Jeong Sup ; Yoon Ji Young ; Kim Joon Ho ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 228~234
Thermal degradation behavior of the three homologous polyesters, poly(ethylene terephthalate)(PET), poly(trimethylene terephthalate)(PTT) and poly(butylene terephthalate)(PBT) were investigated by using thermogravimetric analysis(TGA) and pyrolysis-gas chromatography-mass spectrometry(PGC-MS). From the results of isothermal thermogravimetry, it was revealed that PTT has higher activation energy of thermal degradation than the other two polyesters. In PGC-MS analysis, the highly volatile products of the polyesters such as acetaldehyde and acetic acid evolved in the early stage of pyrolysis as common degradation products. Benzoic acid, methyl ester of benzoic acid, terephthalic acid and higher oligomers were produced as the main degradation products of poly(alkylene terephthalate)s at longer pyrolysis times. In isothermal pyrolysis, PTT showed the fastest thermal degradation rate among the three polyesters.
The Photocatalytic Degradation Properties of PET and Nylon 6 Fabrics Treated with Nano
Hong, Kyung-Hwa ; Kang, Tae-Jin ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 235~240
In this study, we prepared
nanoparticles $(<\~10nm)$ whose crystalline structure were predominantly anatase. However, during the pad-dry-cure process, many of the
particles aggregated on the surface of nylon and PET fabrics. The antimicrobial activities and photocatalytic degradation properties of the Ti02 treated nylon and PET fabrics were analyzed and the results suggest that the
promotes the degradation of the nylon and PET polymers.
Effects of Low Temperature Plasma and Chitosan Treatment on the Shrink Resistant Property and Hand of Wool Fabrics
Jin, Soon-Young ; Hong, Kyung-Hwa ; Kang, Tae-Jin ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 241~247
The effects of the low temperature plasma and chitosan treatments on the shrink resistant properties and hand of wool fabrics have been studied. When the plasma treatment was carried out on the wool fabrics, the cuticle of the wool fabrics seemed to be damaged; especially at 150 W power, it was observed that the scales were broken. Therefore the structural changes of the wool fabrics decreased the felting shrinkage of the wool fabrics. Howerver, the plasma treated wool fabrics showed harsher handle compared to untreated wool fabrics. When the plasma pretreatment was applied on the wool fabrics, then water soluble chitosan was coated on the surface of wool fibers uniformly, the shrink resistance of the wool fabrics was enhanced. The plasma-chitosan treatment also affected the mechanical properties and hand values of the wool fabrics.
Clogging Behavior in HEPA Filters during Dynamic Filtration
Kim Hyungsup ; Jin Dong Sik ; Cho Kwang-Soo ; Seo Moon Hwo ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 248~254
The filtration behaviors of glass filters were studied by measuring the air permeability, pressure drop and SEM images of five HEPA grade filter material. Based on the observations, the filtration mechanism was described in terms of fiber diameter, packing density and filter depth. The results indicate that the finer fibers and fibers on/near the filter media surface show better filtration performance. Also the captured particles on the fibers formed dendrites, which influenced further filtration.
Sound Absorption Properties of Interior Wall Covering Textiles
Yoon, Jae-Hee ; Oh, Kyung-Wha ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 255~262
In this study, the effects of fabric weave, density, and fiber fineness on the acoustic absorption characteristics of interior wall covering textiles were investigated. Polyester
nonwoven (needlepunching) of uniform fiber fineness were selected for rear acoustic absorbents. For the fabric wall covering textiles, acrylic
woven fabrics and polyester
nonwoven (needlepunching) of different fiber fineness were employed. The capacity of sound absorption was measured by a two-microphone impedence measurement tube (KS F 2814), and sound absorption coefficients were calculated. Air permeability (ASTM D 737) and surface roughness (root mean square's method) were measured to estimate the structural characteristics of interior wall covering textiles. For surface interior wall covering textiles, sound absorption in the high frequency range increased as air permeability increased, but it was irrelevant to the roughness. On the contrary, sound absorption coefficient increased in the low and medium frequency range, as air permeability decreased. Moreover, with an increase in surface roughness, the sound absorption coefficient increased in the low-frequency range. Based on the results of this study, it is expected that efficient sound absorption capacity through the whole frequency range can be achieved by applying various combinations of wall covering textiles to the interior of a building.
Characteristics of Hydroxyapatite/Chitosan Composite Films with Hydroxyapatite Nanoparticle Contents
Choi Choong-Youl ; Kim Hyun-Chul ; Kim Su-Bong ; Park Pyong-Ki ; Chung Yong-Sik ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 263~269
We investigated the effect of hydroxyapatite(HAp) nanoparticle content on the characteristics of HAp/chitosan composite film containing
citric acid based on HAp content. Several compositions of HAp/chitosan composite films were prepared by co-precipitation and solvent casting method. According to turbidity measurements, HAp particles whose diameter were generally less than 500nm were homogeneously dispersed in chitosan matrix and all the films were transparent. HAp/chitosan composite films were characterized by X-ray diffractometer(XRD) and differential scanning calorimetry(DSC). The degree of swelling decreased with decreasing chitosan content. Tensile strength and modulus revealed that HAp/chitosan films became rigid and brittle with increasing HAp content. The increase of surface energy was due to the increasing interaction among the HAp nanoparticle, citric acid, and chitosan.
Carbon Nanotube-Polyurethane Nanocomposites Having Characteristics of Electroactive Shape Recovery
Kim, Jeong-Won ; Jung, Yong-Chae ; Cho, Jae-Whan ;
Textile Science and Engineering, volume 42, issue 4, 2005, Pages 270~276
Multi-walled carbon nanotube(MWNT)-polyurethane block copolymer(PU) nanocomposites were prepared, and their electroactive shape recovery characteristics were investigated. The nanocomposites incorporating chemically modified MWNTs showed higher modulus and breaking stress than those incorporating raw MWNTs, which was ascribed to an increased dispersion of nanotubes in the matrix polymer and increased interfacial strength between nanotubes and polyurethane molecules. However, their electrical conductivity decreased with the degree of chemical modification of MWNTs. The best properties were obtained in the composites incorporating MWNTs modified at
on basis of combined evaluation of mechanical and conducting properties. Good electroactive shape recovery within 10 seconds was obtained when a voltage of 10 to 30 V was applied to the composites of
modified MWNT content.