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Effects of temperature on Hardness and Stiffness of NR and SBR Vulcanizates  

Jin, Hyun-Ho (Department of Advanced Chemicals, Chonnam National University)
Hong, Chong-Kook (Center for functional Nano Fine Chemicals (BK21))
Cho, Dong-Lyun (School of Applied Chemical Engineering, Chonnam National University)
Kaang, Shin-Young (School of Applied Chemical Engineering, Chonnam National University)
Publication Information
Elastomers and Composites / v.42, no.3, 2007 , pp. 143-150 More about this Journal
Abstract
Hardness of rubbery materials, which is important for dimensional stability and product performance, was investigated upon temperature change in this study. A newly developed IRHD (International Rubber Hardness Degree) tester was used to measure the hardness changes of NR and SBR specimens at various temperatures and the hardness values were compared with the Young's modulus. The harness and Young's modulus of NR and SBR showed an abrupt change near the glass transition temperatures. The hardness and Young's modulus were increased by increasing temperature due to the increased random chain conformation of molecules. The effect of temperature on hardness and Young's modulus of NR and SBR specimens filled with carbon black and silica was decreased by increasing filler content.
Keywords
Hardness; Young's modulus; temperature; NR; SBR; filler;
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1 박상민, 홍창국, 조동련, 강신영, '충진된 고무재료의 열변화에 따른 수축력/팽창력 측정', Elastomer, submitted
2 A. N. Gent, 'On the Relation between Indentation Hardness and Young's modulus', IRI, 34, 46-57 (1958)
3 D. J. Hitt and M. Gilbert, 'Dimensional Stability of Oriented, Rigid Poly(vinyl chloride)', J. Appl. Polym. Sci., 89, 3859 (2003)   DOI   ScienceOn
4 B. J. Briscoe and K. S. Sebastian, 'An Analysis of the Durometer Indentation', Rubber Chem. Technol., 66, 827 (1993)   DOI   ScienceOn
5 C. K. Hong, H. Kim, C. Ryu, C. Nah, Y. Huh, and S. Kaang, 'Effects of Particle Size and Structure of Carbon Black on the Abrasion of Filled Elastomer Compounds', J. Materials Sci., (accepted)
6 N. Suzuki and F. Yatsuyanagi, 'Effect of Rubber/Filler Interactions on Deformation Behavior of Silica Filled SBR Systems.' Polymer, 46, 193-201 (2005)   DOI   ScienceOn
7 Y.-C. Ou, Z.-Z. Yu, A. Vidal, and J. B. Donnet, 'Effect of Alkylation of Silica Filler on Rubber Reinforcement', Rubber Chem. Technol., 67, 834 (1994)   DOI   ScienceOn
8 Sung-Seen Choi, 'Influence of internal strain on change of crosslink density of natural rubber vulcanizates by thermal ageing', Polym. Int., 50, 107-112 (2001)   DOI   ScienceOn
9 A. K. Sircar, 'Thermal Characterization of Polymeric Materials', ed. by E. A. Turi, 2nd ed., Academic Press, New York, 1997
10 D. D. Wright, E. P. Lautenschlager, and J. L. Gilbert, 'Constrained Shrinkage of Highly Oriented Poly(methyl methacrylate) Fibers', J. Appl. Polym. Sci., 91, 4047 (2004)   DOI   ScienceOn
11 Sung-Seen Choi, 'Influence of Polymer-Filler Interactions on Retraction Behaviors of Natural Rubber Vulcanizates Reinforced with Silica and Carbon Black', J. Appl. Polym. Sci., 99, 691 (2006)   DOI   ScienceOn
12 A. N. Gent, 'Elasticity' in 'Engineering with Rubber: How to Design Rubber Components', ed. by A. N. Gent, Hanser Publishers, New York, 1992
13 A. Kasner and E. Meinecke, 'Porosity in Rubber, a Review', Rubber Chem. Technol., 69, 424 (1996)   DOI   ScienceOn
14 C. K. Hong, S. Park, and S. Kaang, 'A test method for measuring the dimensional stability of elastomeric materials upon heating', Polymer Testing, submitted
15 N. Rattanasom, T. Saowapark, and C. Deeprasertkul, 'Reinforcement of Natural Rubber with Silica/Carbon Black Hybrid Filler', Polymer Testing, 26, 369 (2007)   DOI   ScienceOn
16 I. Franta, 'Elastomers and Rubber Compounding Materials', Elsevier, NY, 1989
17 J. A. Shaw, A. S. Jones, and A. S. Wiliam, 'Chemorheological Response of Elastomers at Elevated Temperature: Experiment and Simulations', J. Mech. Phys. Solids, 53, 2758 (2005)   DOI   ScienceOn
18 D. A. Wasylyshyn and G. P. Johari, 'Mechanical Relaxation Spetroscopy of Three Triepoxide-Based Polymers', J. Polym. Sci.: Part B: Polym. Phys., 37, 3071-3083 (1999)   DOI   ScienceOn
19 S.-S. Choi, C. Nah, S. G. Lee, and C. W. Joo, 'Effect of Filler-Filler Interaction on Rheological Behavior of Natural Rubber Compounds Filled with Both Carbon Black and Silica', Polym. Int., 52, 23 (2003)   DOI   ScienceOn