Browse > Article

Natural Rubber-Clay Nanocomposites by Latex Method : Morphology and Mechanical Properties  

Kim, W.H. (Department of Chemical Engineering, Pusan National University)
Kang, J.H. (Department of Chemical Engineering, Pusan National University)
Kang, B.S. (Department of Chemical Engineering, Pusan National University)
Cho, U.R. (Department of Applied Chemical Engineering, Korea University of Technology and Education)
Publication Information
Elastomers and Composites / v.41, no.1, 2006 , pp. 27-39 More about this Journal
Abstract
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.
Keywords
organoclay; NR latex; nanocomposites; reinforcing effect;
Citations & Related Records
연도 인용수 순위
  • Reference
1 L. Zhang, Y. Wang, Y. Sui, and D. Yu, 'Morphology and Mechanical Properties of Clay/Styrene-Butadiene Rubber Nanocomposites', J. Appl. Polym. Sci., 78, 1873 (2000)   DOI   ScienceOn
2 R. E. Grim, 'Clay Mineralogy', McGraw-Hill, New York, 1968
3 R. Fan, Y. Zang, and C. Huang, 'Effect of Crosslink Structures on Dynamic Mechanical Properties of Natural Rubber', J. Appl. Polym. Sci., 81, 710 (2001)   DOI   ScienceOn
4 T. D. Fornes, P. J. Yoon, H. Kekkula, and D. R. Paul, 'Nylon 6 Nanocomposites: The Effect of Matrix Molecular Weight', Polymer, 42, 9929 (2001)   DOI   ScienceOn
5 J. B. Donnet, 'Black and White Fillers and Tire Compound', Rubber Chem. Technol., 71, 323 (1998)   DOI   ScienceOn
6 B. B. Boonstra, 'Role of Particulate Fillers in Elastomer Reinforcement: A Review', Polymer, 20, 691 (1979)   DOI   ScienceOn
7 R. A. Vaia, H. Ishii, and E. P. Giannelis, 'Synthesis and Properties of Two-dimensional Nanostructures by Direct Intercalation of Polymer Melts in Layered Silicates', Chem. Mater., 5, 1694 (1993)   DOI   ScienceOn
8 S. Varghese and J. Karger-Kocsis, 'Melt-Compounded Natural Rubber Nanocomposites with Pristine and Organophilic Layered Silicates of Natural and Synthetic Origin', J. Appl. Polym. Sci., 91, 813 (2004)   DOI   ScienceOn
9 Y. Wang, L. Zang, C. Tang, and D. Yu, 'Preparation and Characterization of Rubber-Clay Nanocomposite', J. Appl. Polym. Sci., 78, 1879 (2000)   DOI   ScienceOn
10 T. Lan, P. D. Kaviratna, and T. J. Pinnavaia, 'Mechanism of Clay Tactoid Exfoliation in Epoxy-Clay Nanocomposites', Chem. Mater., 7, 2144 (1995)   DOI   ScienceOn
11 A. Okamoto and A. Usuki, 'The Chemistry of Polymer-Clay Hybrids', Mater. Sci. Eng., 3, 109 (1995)   DOI   ScienceOn
12 J.-Y. Lee, H.-R. Rim, M.-J. Shim, and H.-K. Lee, 'Characteristics of Natural Bentonite Used for Nanocompositcs'. J. Kor. Ind. Eng. Chem., 14, 769 (2003)
13 S. Joly, G. Garnaud, R Ollitrault, L. Bokobza, and J. E. Mark, 'Organically Modified Layered Silicates as Reinforcing Fillers for Natural Rubber', Chem. Mater., 14, 4202 (2002)   DOI   ScienceOn
14 Y-P Wu, Q-X Jia, D-S Yu, and L-Q Zhang, 'Structure and Properties of Nitrile Rubber (NBR)- Clay Nanocomposites by Co-coagulating NBR Latex and Clay Aqueous Suspension', J. Appl. Polym. Sci., 89, 3855 (2003)   DOI   ScienceOn
15 E. Hackett, E. Manias, and E.P. Giannelis, 'Molecular Dynamics Simulations of Organically Modified Layered Silicates', J. Phys. Chem., 108, 7410 (1998)   DOI   ScienceOn
16 S. Wolff and J. B. Donnet, 'Characterization of Fillers in Vulcanizates According to The EinsteinGuth-Gold Equation', Rubber Chem. Technol., 63, 32 (1990)   DOI
17 T. Ryo, N. Kensuke, and C. Yoshiki, 'Synthesis of Poly(N,N-dimethylacrylamide)/silica Gel Polymer Hybrids by in situ Polymerization Method', Polymer, 30, 60 (1998)   DOI
18 M. Pramanik, S, K. Srivastsva, B. K. Samantaray, and A. K. Bhowmick, 'Rubber-Clay Nanocomposite by Solution Blending', J. Appl. Polym. Sci., 87, 2216 (2003)   DOI   ScienceOn