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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 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
Preparation of PVA/Silk Sericin Blend Fiber Using LiCl/DMSO Solvent
Oh, Han-Jin ; Lee, Ji-Young ; Kim, A-Rum ; Lee, Ki-Hoon ; Shin, Bong-Seob ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 1~5
Poly(vinyl alcohol)/sericin(PVA/sericin) blend fiber was prepared successfully using lithium chloride/dimethylsulfoxide(LiCl/DMSO) solvent system. Sericin could be dissolved up to 30% (w/v) in 1 M LiCl/DMSO solvent. The concentration of the dope solution and the blend ratio affect critically on the spinnability of PVA/sericin blend fiber. The high content of sericin in PVA/sericin blend fiber was achieved and it was at least three times higher than previous researches. The secondary structure of PVA/sericin blend film was revealed by ATR FT-IR. The secondary structure of sericin was changed from random coil to
-aggregate state by methanol.
Improvement of Heat and Light Resistance of Nylon 6 BCF by Additives Doping
Cho, Hyeon-Tae ; Lee, Kyung-Nam ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 6~12
Effect of light and heat resisting additives on fading of a acid dye(C.I. Acid Red 361) on nylon 6 BCF and degradation of the fiber were studied. These additives were doped in the fiber as a master batch chip during spinning process to improve dye fading or fiber degradation when nylon 6 BCF was exposed under UV-irradiation and heat. The dye fading was affected by not only UV-radiation but also heat especially above
. With applied additives the dye fading caused by UV-radiation or heat could be lowered but the effect was not remarkable. The tensile strength retention of undyed sample was higher than that of dyed sample when the fiber was exposed under UV-irradiation. Thus it is concluded that the acid dye creates active radicals more easily than fiber during exposure of UV-irradiation and acts as a photo accelerator in degradation of nylon 6 BCF. On the other hand, the tensile strength retention of undyed sample was lower than that of dyed sample when heat was applied to the fiber. This could be attributed that radicals created during fiber degradation by heat preferably attack dye molecules rather than transfer to nylon 6 fiber molecules which causes chain scissoring. Light and thermal degradation of nylon 6 BCF were greatly improved by doping with a UV-absorber, light resisting agents or heat resisting agents to the nylon 6 BCF, but it is not easy to improve dye fading. Thus new combinations of light and thermal resisting agents showing more effective to both thermal and light fading of dye are necessary for higher light fast dyeing of nylon 6 BCF.
Effects of Phosphite Compounds on the Thermal Properties of PTT/PET Melt Blends
Ham, Myong-Jo ; Pang, Kyeong ; Kim, Young-Ho ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 13~19
The effects of triphenyl phosphite (TPP) and bis(2,4-di-t-butylphenyl)pentaerythritol diphosphite (BPDP) on the transesterification and thermal properties of poly(trimethylene terephthalate) (PTT) and poly(ethylene terephthalate) (PET) melt blends were investigated. PTT/PET melt blends containing small amount of TPP or BPDP were prepared by mixing them at
for different times using a twin screw type internal mixer, and their thermal properties were investigated by using a DSC. With addition of phosphite compounds, TPP or BPDP, during the melt blending, the trans esterification reaction was retarded and the melting point depression decreased. TPP was more effective than BPDP in decreasing the transesterification during the melt blending. NMR analysis showed that the randomness of PTT/PET blend containing 1% of TPP prepared at the same melt mixing conditions was much lower than the one without TPP, which confirmed the effectiveness of TPP in suppressing the transesterification reaction of the PTT/PET blends.
Photovoltaic Properties of Polymer with Fluorene and Imine Groups in the Main Chain
Kim, Hyung-Jun ; Lee, Jung-Hyo ; Kwak, Chan-Kyu ; Jin, Sung-Ho ; Lee, Taek-Seung ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 20~25
New polyimine derivative containing fluorene group in the main chain was synthesized via Suzuki cross-coupling polymerization, reduction, and imine formation reaction, consecutively. The synthesized polymer was characterized and explored as organic photovoltaic cell device. The imine polymer P3 in diluted chloroform solution emitted red light (582 nm), whereas its precursor polymers P1 and P2 showed green (about 530 nm) and blue fluorescence (477 nm), respectively. Bulk heterojunction photovoltaic cells fabricated by blending P3 with the fullerene derivative PCBM was found to have a power conversion efficiency of upto 0.0005%, while cells from blending P3 with MEH-PPV yielded 0.0008% of power conversion efficiency.
Synthesis and Properties of Poly(ethylene 2,6-naphthalate)/MWNT Nanocomposites Prepared by in situ Polymerization(I) -Synthesis and Characterization-
Jee, Min-Ho ; Lee, Min-Ho ; Yoon, Yeo-Hoon ; Baik, Doo-Hyun ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 26~32
Multi-walled carbon nanotubes (MWNT) reinforced poly(ethylene 2,6-naphthalate) (PEN) nanocomposites were prepared by in situ polymerization. To improve the dispersibility of nanotubes, MWNT was treated with acid and consequently carboxylic acid groups were introduced on the surface of MWNT. The carboxylic acid groups formed on the surface of MWNT were confirmed by XPS analysis. Acid-modified MWNT showed a good dispersiblity in ethylene glycol. MWNT dispersion in ethylene glycol was introduced into the bis-hydroxyethylnaphthalate (BHEN) melt at the end of the ester-interchange reaction stage of poly(ethylene 2,6-naphthalate) synthesis. Crystallinity and crystallization temperatures were increased with MWNT content, which implied that MWNT could aid PEN to crystallize more fast and much more.
Synthesis and Properties of Poly(ethylene 2,6-naphthalate)/MWNT Nanocomposites Prepared by in situ Polymerization(II) -Non-isothermal Crystallization-
Jee, Min-Ho ; Lee, Min-Ho ; Yoon, Yeo-Hoon ; Baik, Doo-Hyun ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 33~39
Acid-modified multi-walled carbon nanotubes (a-MWNTs) reinforced poly(ethylene 2,6-naphthalate) nanocomposites were prepared by in situ polymerization. Non-isothermal crystallization behavior of in situ polymerized PEN/a-MWNT nanocomposites was studied at various cooling rates. Non-isothermal crystallization kinetics were analyzed by using Avrami, Ozawa, and Ziabicki equations. The PEN/a-MWNT nanocomposites showed higher crystallization rate and temperature than PEN, which was thought to be due to the incorporation of MWNT as a nucleating agent.
Objective Evaluation of Banner Fabric Using Image Processing
Cho, Dae-Hwan ; Jeong, Young-Jin ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 40~46
The performance of warp knitted fabrics as banner application is influenced by the structure of the fabric. Especially, the level of visibility of a banner fabric is dependent on the evenness of the fabric, which is also influenced by the characters of the component yarns. Until now, the status of fabric surface has been subjectively determined by human, which gives us inconsistent results. Thus, we try to study an objective method using image processing which characterizes the surface status of banner fabric. To do this, we prepare six different samples and extract parameters defining the surface status with image technology. Using the parameters, we analyze the relation between the surface status and yarn characters.
The Fiber Reinforcing Effect on the Physical Properties of Recycled Fine Aggregate Concrete
Kim, Ho-Dong ; Yoo, Jong-Seong ; Kim, Moo-Han ; Kim, Gyu-Yong ; Kim, Young-Duck ;
Textile Science and Engineering, volume 45, issue 1, 2008, Pages 47~56
In order to improve the physical properties of recycled fine aggregate concrete, fiber reinforced concrete composites were prepared with synthetic fibers such as polyvinylalcohol(PVA), nylon, polypropylene(PP), kevlar, and carbon fiber and were investigated for their effects on the physical properties of these concrete composites. The compressive strength of these fiber reinforced concretes using hydrophilic fibers such as PVA and nylon was explicitly improved compared to that of recycled fine aggregate concrete without fiber. On the other hand, the flexural strength did not indicate the substantial changes even though high performance fiber was used. In addition to the strength reinforcing effect, the porosity of recycled fine aggregate concrete evidently decreased with fiber reinforcement, thus, making the concrete denser.