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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 41, Issue 4 - Dec 2006
Volume 41, Issue 3 - Sep 2006
Volume 41, Issue 2 - Jun 2006
Volume 41, Issue 1 - Mar 2006
Selecting the target year
A Study on the Optimal Conditions by Means of Experimental Design for Preparation of Starch/PVA Blends 2. Multiplex Mixture Optimal Method
Hong, young-Keun ; Lee, Myoung-Seok ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 3~9
Optimal conditions for preparation of starch/PVA blends were investigated with the consideration of factors that may influence mechanical properties of the blends. Multiplex mixture optimal method as a statistical method were performed and then tensile strength, strain at break, Young's modulus and tear strength of films of the blends were measured to determine the optimal conditions for preparation. The mechanical properties needed for the degradable agricultural mulch were the target of this experiment. Results showed that although the strain at break was a little insufficient, the other properties were very close to the target. This means that the mechanical properties of the film from this blend as a whole are very compatible with those of the reference mulch.
Improvement of the Filler Dispersion in Silica-Filled SBR Compounds Using Low Molecular Weight Polybutadiene Treated with Maleic Anhydride
Choi, Sung-Seen ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 10~18
Influence of low molecular weight polybutadiene (liquid PB) treated with maleic anhydride on properties of a silica-filled SBR compounds was studied. Silica dispersion was improved by adding liquid PB. The liquid PB treated with maleic anhydride (liquid MAPB) was found to be more effective for the improvement of silica dispersion than the liquid PB without maleic anhydride (liquid NPB). Viscosity of the SBR compound decreased by adding the liquid PB. The crosslink density decreased with increase of the liquid PB content and the cure rate became slower with increasing the liquid PB content. Considering the experimental results, it was believed that addition of small amount of the liquid PB (less than 5 phr) was desirable to improve properties of silica-filled SBR compounds.
Effect of Thermal Aging Temperature on Weight Loss and Glass Transition Temperature of Epoxy Adhesives
Park, Soo-Jin ; Kim, Jong-Hak ; Joo, Hyeok-Jong ; Kim, Joon-Hyung ; Jin, Fan-Long ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 19~26
In this study, the effect of thermal aging temperature on the weight loss, glass transition temperature, and morphology of epoxy adhesives cured with amine (D-230), amide (G-5022), and anhydride (HN-2200) was investigated. As a result, the weight loss of three specimens was increased with increasing the thermal aging temperature. The result was attributed to the thermal aging which was occurred at the surface of adhesive specimens at high aging temperature, resulting in increasing the weight loss of the specimens. According to the DSC result, the glass transition temperature of DGEBA/D-230 and DGEBA/G-5022 samples war increased as the aging temperature increased, whereas the glass transition temperature of DGEBA/HN-2200 samples was constant above aging temperature of
and aging tine of 7 days. The SEM result indicated that the surface of DGEBA/G-5022 specimen showed more rough topography than that of DGEBA/D-230 or DGEBA/HN-2200 specimen after thermal aging. This could be correlated with the result of weight loss.
Natural Rubber-Clay Nanocomposites by Latex Method : Morphology and Mechanical Properties
Kim, W.H. ; Kang, J.H. ; Kang, B.S. ; Cho, U.R. ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 27~39
In this study, modified DA-MMT filled NR/DA-MMT nanocomposites were manufactured by a latex method and a compounding method. Cure characteristics and mechanical properties of the Cloisite 15A, carbon black, Na-MMT filled NR compounds and the DA-MMT filled NR compound by a latex method were also evaluated. The filler content of all compounds was 10phr except the carbon black filled compound. Degree of intercalation and dispersion was characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). According to the XRD diffraction pattern and TEM analysis, extensive intercalation and homogeneous dispersion of the clay were obtained after the two-roll milling. Although the layer distance was increased, some parts of DA-MMT showed the layer distance of Na-MMT after vulcanization. DA-MMT filled NR compounds showed the highest ODR torques, tensile strength, modulus, and tear energy. The NR/DA-MMT nanocomposite (by a latex method) compared with a NR/DA-MMT nanocomposite (by a compounding method) was found that the improvement of the mechanical properties was mainly due to the degree of dispersion of the clay.
Evaluation of the Dynamic Characteristics of Rubber Structure under Impact Force
Kim, Wan-Doo ; Kim, Dong-Jin ; Lee, Young-Shin ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 40~48
Mechanical systems with rubber parts have been used widely in industry fields. The evaluation of the physical characteristics of rubber is important in rubber application. Rubber material is useful to machine component for excellent shock absorbing characteristics. The impact characteristics of rubber were examined by experimental and finite element method. The impact test was conducted with a free-drop type impact tester. The ABAQUS/Explicit was used for finite element analysis. In the finite element analysis, elastic modulus of rubber using impact force was used as dynamic modulus, which are measured and predicted with dynamic property test and WLF model. The analysis result was coincided with the experimental results.
Influence of Surface Functionalized Waste Tire Ponder on the Thermal and Rheological Properties of Polypropylene/Waste Tire Powder Composite
Ryu, Sung-Hun ; Shanmugharaj, A.M. ; Kim, Jin-Kuk ; Ryu, Sung-Hun ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 49~56
The waste tire powder is modified with allylamine in the presence of ultraviolet radiation and the influence of surface modification on the thermal and rheological properties of polypropylene/waste tire powder composites was investigated. X-ray diffraction studies of PP/waste tire powder composite without compatibilizer, such as maleic anhydride-g-polypropylene (MA-PP), shows the increase in peak intensity of
crystalline peaks, whereas it completely disappears in the presence of the MA-PP. Differential scanning calorimetry results further supported the above fact. The melt viscosities and storage modulus of the composites with modified waste tire powder show higher value than that of composites with unmodified powder and it is attributed to the interaction between amine group on modified powder surface and maleic anhydride of MA-PP.
Ultrasonic Monitoring of Reaction of Fullerene
with 3-Chloroperoxy Benzoic acid
Ko, Weon-Bae ; Buckin, Vitaly ;
Elastomers and Composites, volume 41, issue 1, 2006, Pages 57~62
The reaction of fullerene
and 3-chloroperoxy benzoic acid in 1,2-dichlorobenzene was monitored by high resolution ultrasonic spectroscopy and the product of reaction by fullerene
and 3-chloroperoxy benzoic acid in 1,2-dichlorobenzene was characterized using MALDI-TOF-MS spectra.