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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Elastomers and Composites
Journal Basic Information
Journal DOI :
The Rubber Society of Korea
Editor in Chief :
Volume & Issues
Volume 42, Issue 4 - Dec 2007
Volume 42, Issue 3 - Sep 2007
Volume 42, Issue 2 - Jun 2007
Volume 42, Issue 1 - Mar 2007
Selecting the target year
Effect of Surface Modification of Polyester Cord on the Adhesion of SBR/Polyester
Park, Y.S. ; Chung, K.H. ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 75~85
In this study, the new adhesion system was studied to improve the adhesion strength between polyester cord and rubber matrix. In order to enhance the adhesion strength through polyester cord's surface treatment, the NaOH solution was used. The NaOH solution concentrations of 0.03, 0.05, 0.1, 0.2, 0.5, 1 and 5 wt.% were used in surface modifying the polyester cord. The optimum condition showing the maximum adhesion strength of polyester cord with SBR compound containing bonding agent was at NaOH concentration of 0.05 wt.% with treatment time of 10 minutes. When the NaOH solution concentration was above 1 wt.%, the polyester cord due to the excess surface modification was damaged, and resulted in breakage during the adhesion test. Also, the adhesion strength between polyester and SBR could be improved by coating the polyester cord with triallylcyanurate(TC) adhesive. The drying condition of polyester cord coated with TC attributed to the adhesion strength. The maximum adhesion strength was obtained by using the polyester cord dried at
rather than dried at room temperature.
A Study of Bi-Axial Stretching Process for the PTFE Membrane(I)
Shin, Hong-Chul ; Kim, Sung-Chul ; Cho, Ur-Ryong ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 86~92
A few of polytetrafluoroethylene(PTFE) membranes and PTFE fine powders were analyzed to chooce an optimum resin. The bi-axial stretching process was developed to set up the foundation of the preparation process and control the pore size and porosity of PTFE membrane. The pretreatment of PTFE fine powder used in the preparation process for PTFE was needed. The mixing of additives, the ripening of mixture, paste extrusion process of ripening powder, calendering process and the bi-axial process were conducted for controlling pore size, porosity and thckness of membrane. The aftertreatment which strengthened the mechanical properties was necessary. The control of pore size and porosity of the membrane were determined. The ratio of PTFE fine powder and additives at the paste extrusion process, the ripening time, the ripening temperature and the parameters of temperature and pressure at the paste extrusion process were optimized.
A Study on Enhancement of the Durability of Permeable Pavement Material
Oh, Hun-Su ; Hong, Young-Keun ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 93~101
In this study, for enhancing the durability of permeable pavement material polyurethane(PU) adhesives were developed, and the physical properties upon polymerization and additives were studied. PU polymerization followed the bulk polymerization of free solvent type considering ecological aspect. Additives used in this study were carbon black, calcium carbonate and ultra violet stabilizer. The property changes upon different environment were evaluated with the compressive strength which is the principal measurement of the property of pavement materials. Among polymerized PU, one formulated with esterpolyol and crosslinkable chain extender gave the highest compressive strength of
, better than commercial
. The strength was the highest when the material specimen contained carbon black and calcium carbonate 20 wt%, respectively. However, UV stabilizer did not show good weathering properties.
Influence of reinforcing systems and microstructures of SBR on water swelling behaviors of SBR composites
Choi, Sung-Seen ; Ha, Sung-Ho ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 102~106
Water swelling behaviors of SBR vulcanizates with different reinforcing systems of carbon black, silica without a coupling agent, and silica containing a coupling agent were studied. Distilled water and 3.5% NaCl solution were used as swelling media. The water swelling ratios in the distilled water were higher than those in the salt solution. The water swelling ratios of the carbon black-filled samples were lower than those of the silica-filled ones. For the silica-filled SBR vulcanizates, the specimens without the silane coupling agent had higher water swelling ratios than those containing it. Water swelling behaviors of SBR composites with different 1,2-unit contents were also compared. The water swelling ratios tended to decrease by increasing the 1,2-unit content.
Influence of Initial States of Test Sheets on Adhesion of NR/NR, BR/BR, and NR/BR
Choi, Sung-Seen ; Kim, Jong-Chul ; Woo, Chang-Su ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 107~111
Adhesion of NR and BR composites with different initial states of precured or uncured conditions was studied. Adhesion between the NR and BR sheets as well as adhesion between the same rubber sheets was investigated. Adhesion forces of the uncured/uncured specimens were larger than those of the cured/uncured and cured/cured ones. The cured/cured samples and uncured NR/cured BR specimen were fully peeled out by the peel test. When one sheet was broken during the peel test, the sheet having the higher crosslink density was broken irrespective of the rubber types. Adhesion forces of the same rubber sheets were higher than those of the different ones and adhesion force of the cured NR/uncured BR sample was higher than that of the uncured NR/cured BR one. The experimental results were explained with the crosslink density and interdiffusion of rubber chains.
Electrochemical Properties of HRP Immobilized Biosensor bound with EPDM
Yoon, Kil-Joong ;
Elastomers and Composites, volume 42, issue 2, 2007, Pages 112~118
An HRP immobilized carbon paste electrode, which was bound by EPDM, was newly fabricated and its electrochemical properties were investigated for the purpose of validating the new possibility for the practical use of biosensor. In the experimental range of substrate concentration, Lineweaver-Burk plot of the signal showed a good linearity. This means that HRP was embedded effectively to preserve its identity in the bulk of composite electrode materials and EPDM is a recommendatory binder. When the electrode was run at low operating potential(
V vs. Ag/AgCl), it showed a high sensitivity and a good reproducibility. Especially the mechanical stability of the dried rubber was a remarkable breakthrough to get over a difficulty in putting the carbon-paste electrode bound with silicon oil to real use.