Go to the main menu
Skip to content
Go to bottom
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 47, Issue 4 - Dec 2012
Volume 47, Issue 3 - Sep 2012
Volume 47, Issue 2 - Jun 2012
Volume 47, Issue 1 - Mar 2012
Selecting the target year
Development of Integrated Design System for Automotive Rubber Components
Woo, Chang-Su ; Kim, Wan-Doo ; Park, Hyung-Sung ; Shin, Wae-Gi ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 188~193
DOI : 10.7473/EC.2012.47.3.188
The fatigue analysis and lifetime evaluation are very important in design procedure to assure the safety and reliability of the rubber components. Recently, the design, analysis and evaluation technology was required to achieve the high quality, fidelity, reliability of rubber products. However, rubber manufacturing companies of our country have uesd the method of trial and error and experience in the process of a compound mixing, manufacturing and improvement of rubber properties. The objectives of this study are to establish the test methods of rubber material and to make the database of rubber material properties and to evaluate the performance of rubber components and to construct the prediction system of fatigue life. Fatigue lifetime prediction methodology of the rubber component was proposed by incorporating the finite element analysis and fatigue damage parameter from fatigue test.
Study on the Determination of Fatigue Damage Parameter for Rubber Component under Multiaxial Loading
Moon, Seong-In ; Woo, Chang-Su ; Kim, Wan-Doo ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 194~200
DOI : 10.7473/EC.2012.47.3.194
Rubber components have been widely used in automotive industry as anti-vibration components for many years. These subjected to fluctuating loads, often fail due to the nucleation and growth of defects or cracks. To prevent such failures, it is necessary to understand the fatigue failure mechanism for rubber materials and to evaluate the fatigue life for rubber components. The objective of this study is to develop the durability analysis process for vulcanized rubber components, which is applicable to predict fatigue life at initial product design step. The determination method of nonlinear material constants for FE analysis was proposed. In order to investigate the applicability of the commonly used damage parameters, fatigue tests and corresponding finite element analyses were carried out and strain energy density was proposed as the fatigue damage parameter for rubber components. The fatigue analysis for automotive rubber components was performed and the durability analysis process was reviewed.
A Study on Finite Element Analysis and Aging Test for Automotive Grommet
Lee, Seong-Beom ; Yeom, Sang-Hoon ; Han, Chang-Yong ; Woo, Chang-Su ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 201~209
DOI : 10.7473/EC.2012.47.3.201
Grommet is one of the Automotive rubber components and is made from EPDM(Ethylene Propylene Diene monomer M-class) rubber and the nonlinear hyperelastic material properties of rubber are important to predict the behavior of rubber product. In this study, the stable stress-strain relations were obtained from the uni-axial tension test and the equi-biaxial tension test. Finite element analysis for grommet was carried out and heat aging test for the lifetime prediction of grommet was introduced.
Influence of Filler and Cure Systems on Whitening of EPDM Composites by Formation of Metal Salt
Chung, Hye-Seung ; Choi, Sung-Seen ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 210~215
DOI : 10.7473/EC.2012.47.3.210
Whitening phenomena of the EPDM composites with different inorganic filler compositions which were aged at
for 7 days in air and tap water atmospheres, respectively, were investigated. The aged samples in tap water containing stearic acid exhibited severe whitening phenomena, while all the samples aged in air did not show any whitening. Depending on the filler compositions, there was no big difference in the whitening phenomena. The whitening materials were analyzed using gas chromatography/mass spectrometry (GC/MS), image analysis, energy-dispersive X-ray spectroscopy (EDX), and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The whitening materials were identified to be salts of stearic acid. The salts of stearic acid were formed by reaction of metal cation in tap water and stearic acid in the sample.
Graft Copolymerization of Acrylic Monomer Containing Aromatic Carboxylic Acid Group onto EPDM and Their Mechanical Properties
Park, Hyun-Ju ; Park, Jong-Hyuk ; Bae, Jong-Woo ; Kim, Gu-Ni ; Oh, Sang-Taek ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 216~222
DOI : 10.7473/EC.2012.47.3.216
In this study, p-acryloyloxybenzoic acid(ABA) was synthesized with p-hydroxybenzoic acid(HBA) and acryloyl chloride(AC). The synthesized ABA monomer was grafted onto ethylene-propylene-diene rubber(EPDM) in toluene using benzoyl peroxide(BPO) as an initiator. The structures of ABA and EPDM-g-ABA were characterized by FT-IR,
-NMR spectrometer. The graft ratio of EPDM-g-ABA increased with increasing the concentration of the initiator and the monomer. Mechanical properties such as tensile strength and compression set of the EPDM-g-ABA were improved with increasing the graft ratio. The
and initial decomposition temperature were also increased with increasing the graft ratio.
Stress Relaxation of Poly(methyl acrylate)-Poly(acrylonitrile) Copolymers
Kim, Nam-Jeong ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 223~230
DOI : 10.7473/EC.2012.47.3.223
The rheological parameters of poly(methyl acrylate)-poly(acrylonitrile) copolymers were obtained by applying the experimental stress relaxation curves to the theoretical equation of the Eyring-Halsey non-Newtonian model. The experimentals of stress relaxation were carried out using the tensile tester with the solvent chamber. The determination of rheological parameters was performed from computer calculation. It was observed that the rheological parameters of these copolymer samples are directly related to the self diffusions and viscosities and activation energies of flow segments.
Effect of Carbon Black on Mechanical and Damping Properties of EPDM/Carbon Black System
No, Tae-Kyeong ; Kang, Dong-Guk ; Seo, Jae-Sik ; Yang, Kyung-Mo ; Seo, Kwan-Ho ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 231~237
DOI : 10.7473/EC.2012.47.3.231
This study measured the mechanical and damping properties of EPDM compounds including fillers. Semi-reinforcing furnace black (SRF), high abrasion furnace black (HAF) and acetylene black were used as fillers. Dicumyl peroxide (DCP) were used as curing agents. The measurements were conducted using a moving die rheometer (MDR), durometer, universal testing machine (UTM), compression set and dynamic mechanical analysis (DMA). The tensile strength and elongation at break increased with increasing SRF contents in EPDM compounds. However, they decreased with increasing the amount of acetylene black. In the inspecting temperature range, EPDM compound filled acetylene black had stable storage modulus. Furthermore, the tan
of the EPDM compounds obtained was enhanced by compounding with acetylene black.
A Study on Synthesis of Polyurethane/Functionalized Graphene Nanocomposites by In-situ Intercalation Method
Hwang, Soo-Ok ; Lee, Byung-Hwan ; Cho, Ur-Ryong ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 238~245
DOI : 10.7473/EC.2012.47.3.238
Graphene oxide was synthesized from natural graphite, and its surface was modified using diisocyanatodicyclohexylmethane(
). Isocyanate-graphene sheet(i-RGO) was obtained by reduction of surface modified GO. To select nanofiller having good dispersion with polyurethane, GO, i-RGO, natural graphite and thermal reduced graphite were analyzed, and then i-RGO was selected as a suitable nanofiller. PU/i-RGO nanocomposite was synthesized with various i-RGO contents to estimate effect of reinforcement on nanocomposite. Thermal stability, hardness, contact angle were increased with i-RGO contents due to i-RGO characteristic and crosslink bridge effect. But, tensile strength and elongation were decreased at i-RGO contents more than the 4 wt%. This phenomenon was interpreted by the excess formation of crosslink bridge.
Characterization of Flame-Retardant Foam Asphalt
Hong, Young-Keun ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 246~253
DOI : 10.7473/EC.2012.47.3.246
This study was carried out to prepare a type of warm mix asphalt. Through urethane foam and emulsion asphalt preparation techniques a protocol of asphalt foam was made. Then three kinds of flame retardant agents were added in there to alleviate the inherent susceptability of asphalt and foam material to flame and thus flame retardant asphalt foam was made. The internal structure of form asphalt was composed of open cell. The higher the NCO% brought the larger the cell and the stronger also. Asphalt increased the strength of the foam. Among the flame retardant agents employed tritorylphosphate was the most effective.
A Study on Physical Properties and Life Time Prediction of ACM Rubber for Automotive Engine Gasket
Lee, Hyung-Seok ; Do, Jong-Hwan ; Ahn, Won-Sool ; Kim, Cheol ;
Elastomers and Composites, volume 47, issue 3, 2012, Pages 254~258
DOI : 10.7473/EC.2012.47.3.254
Material characteristics and the prediction of life time of polyacrylic rubber (ACM) for automotive engine gasket were studied. Two kinds of ACM rubber compounds, having chlorine cure-site and carboxyl cure-site, were made with optimum formulations and the properties of each materials were examined. As a test results for the thermal properties and compression set, which are very important in the application for the automotive engine gasket, the compound using ACM with carboxyl cure-site was evaluated as having a better characteristics than that of ACM with chlorine cure-site. Arrhenius relationship based on time-temperature superposition principle (TTSP) was obtained through the accelerated heat aging test to predict the useful life-time for the compound using ACM with carboxyl cure-site.