OJPChem  Vol.2 No.3 , August 2012
Resistance of Epoxypolymer with 2 - 5 wt% Nanosilica in Aggressive Acid Medium
ABSTRACT
The swelling dynamic and epoxy resin structure changes of nanosilica (NS) with different specific surface in concentrated nitric acid were studied. It is established that with increasing of specific surface area of unmodified NS swelling degree decreases and stability of the composite in the acid goes up. Resistance of NS to the HNO3 can be achieved by choosing the optimal concentration and modifications of NS’s surface. According to electron microscopy and X-ray diffraction, the structure of composite can be changed due to appearance of ordered structural zones.

Cite this paper
D. Starokadomsky and I. Telegeev, "Resistance of Epoxypolymer with 2 - 5 wt% Nanosilica in Aggressive Acid Medium," Open Journal of Polymer Chemistry, Vol. 2 No. 3, 2012, pp. 117-123. doi: 10.4236/ojpchem.2012.23016.
References
[1]   X. D. Shi and S. G. Croll, “Recovery of Surface Defects on Epoxy Coatings and Implications for the Use of Accelerated Weathering,” Progress in Organic Coatings, Vol. 67, No. 2, 2010, pp. 120-128. doi:10.1016/j.porgcoat.2009.10.012

[2]   Y. Y. Choi, S. H. Lee and S. H. Ryu, “Effect of Silane Functionalization of Montmorillonite on Epoxy/Montmorillonite Nanocomposite,” Polymer Bulletin, Vol. 63, No. 1, 2009, pp. 47-55. doi:10.1007/s00289-009-0068-5

[3]   A. D. Eselev, O. N. Garicheva, I. A. Chmutin and V. Serbin, “Using of Nanoadditives in Obtaining of Epoxy Flooring Composites,” Coating Industry (Russian), No. 1, 2009, pp. 18-24.

[4]   G. P. Tishchenko, A. A. Radula, A. V. Onishchenko and A. K. Zhugaylo, “Investigation of the Effect of Different Methods of Modification on the Stability of Epoxy-Basalt Coatings in Food Environments,” Problems of Chemistry and Chemical Technology (Russian), No. 1, 2009, pp. 140-145.

[5]   M.-Y. Chen, C.-R. Chen, S.-H. Hsu, S.-P. Sun and W.-F. Su, “Low Shrinkage Light Curable Nanocomposite for Dental Restorative Material,” Dental Materials, Vol. 22, No. 2, 2006, pp. 138-145. doi:10.1016/j.dental.2005.02.012

[6]   J. Batler, N. Becker, M. Ziehmer, M. Thomassey, B. Zielinski, U. Müller and R. Sanctuary, “Interactions between Silica Nanoparticles and an Epoxy Resin before and during Network Formation,” Polymer, Vol. 50, No. 14, 2009, pp. 3211-3219. doi:10.1016/j.polymer.2009.05.020

[7]   Y. P. Zheng, Y Zheng and R. C. Ning, “Effects of Nanoparticles SiO2 on the Performance of Nanocomposites,” Materials Letters, Vol. 57, No. 19, 2003, pp. 2940-2944. doi:10.1016/S0167-577X(02)01401-5

[8]   G. M. Magomedov, S. A. Abakarov, M. R. Magomedov, A. A. Seagull, O. A. Serenko and S. L. Bazhenov, “Effect of SiO2 Nanoparticles on the Electrical and Viscoelastic Properties of Epoxy Composites,” Proceedings of the 10th International Conference “Oligomers-2009”, Volgograd, 2009, p. 241.

[9]   D. L. Starokadomsky “The Influence of Dispersion and Concentration of Aerosil in Polyepoxydes Composites on Their Swelling in Acidic Media,” Ukrainian Chemical Journal, Vol. 76, No. 7-8, 2010, pp. 89-96.

[10]   V. A. Kochetkov and R. D. Maksimov, “Water Absorption and Swelling of Glass/Epoxy Syntactic Foams,” Mechanics of Composite Materials, Vol. 32, No. 1, 1996, pp. 61-70. doi:10.1007/BF02254649

[11]   D. Starokadomsky and I. Telegeyeff, “Influence of Nature and Concentration of Silica on Swelling (in Water/Acid Environments) and Structure of Polyepoxy Composites,” Research & Reviews in Polymer, Vol. 1, No. 1, 2010.

[12]   D. L. Starokadomsky, “Influence of Heat Treatment on Swelling of Polyepoxide Composition,” Proceedings of the 16th International Conference on “Mechanics of Composite Materials”, Riga, 24-28 May 2010, pp. 2-10.

[13]   I. Krakovsky, J. Ple?til and L. Almásy, “Structure and Swelling Behavior of Hydrophilic Epoxy Networks Investigated by SANS,” Polymer, Vol. 47, No. 1, 2006, pp. 218-226. doi:10.1016/j.polymer.2005.11.021

[14]   N. N. Trofimov, V. P. Pathrusim, K. A. Shatskaya, et al. “The Influence of Processing Glass Fiber Reinforcement Materials in a Plasma on the Strength and Water Resistance of Glass-Reinforced Plastics Based on Them,” Plastics, No. 5, 2005, pp. 13-16.

[15]   Y.-L. Liu, C.-Y. Hsua, W.-L. Weia and R.-J. Jeng, “Preparation and Thermal Properties of Epoxy-Silica Nanocomposites from Nanoscale Colloidal Silica,” Polymer, Vol. 44, No. 18, 2003, pp. 5159-5167. doi:10.1016/S0032-3861(03)00519-6

[16]   D. L. Starokadomsky, “The Content of the Unmodified Silica with Different Specific Surface Effect on the Mechanical Properties of Polyepoxy Composites,” Russian Journal of Applied Chemistry, Vol. 81, No. 12, 2008, pp. 2045-2051.

[17]   E. L. McKague Jr., J. D. Reynolds, J. E. Halkias, “Swelling and Glass Transition Relations for Epoxy Matrix Material in Humid Environments,” Journal of Applied Polymer Science, Vol. 22, No. 6, 1978, pp. 1643-1654.

[18]   H. Yim, M. Kent and W. F. McNamara, “Structure within Thin Epoxy Films Revealed by Solvent Swelling: A Neutron Reflectivity Study,” Macromolecules, Vol. 32, No. 23, 1999, pp. 7932-7938. doi:10.1021/ma990990c

[19]   N. Yoshizawa, K. Maruyama, T. Yamashita and A. Akimoto, “Dependence of Microscopic Structure and Swelling Property of DTF Chars upon Heat-Treatment Temperature,” Fuel, Vol. 85, No. 14-15, 2006, pp. 2064-2070. doi:10.1016/j.fuel.2006.04.005

[20]   Y. Y. Choi, S. H. Lee and S. H. Ryu. “Effect of Silane Functionalization of Montmorillonite on Epoxy/Montmorillonite Nanocomposite,” Polymer Bulletin, Vol. 63, No. 1, 2009, pp. 47-55.

[21]   S. N. Danilchenko, “The Morphology and Crystal Structure of Biogenic Apatite according to Transmission Electron Microscopy and Electron Diffraction,” Bulletin of Sumy State University (Series of Physics, Mechanics), No. 2, 2007, pp. 94-100.

[22]   A. I. Buvaylo, L. P. Oleksenko, N. P. Maksimovich, I. P. Mother, I. Kotenko, E. V. Juice and G. I. Skolyar, “Electron-Semiconductor Gas Sensor Based on H2-Oxide Nanomaterials,” Problems of Chemistry and Chemical Technology,” No. 6, 2009, pp. 151-154.

 
 
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