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POLYMER-SILICATE COMPOSITES WITH MODIFIED MINERALS

Jimsher Aneli1,2, Lana Shamanauri1, Eliza Markarashvili2,3, Tamar Tatrishvili2,3, Omar Mukbaniani2,3
Affiliation: 
1 R. Dvali Institute of Machine Mechanics, 10, Mindeli St., 0186 Tbilisi, Republic of Georgia 2 I. Javakhishvili Tbilisi State University, 3, I. Chavchavadze Ave., 0179 Tbilisi , Republic of Georgia 3 Institute of Macromolecular Chemistry and Polymeric Materials, I. Javakhishvili Tbilisi State University, Tbilisi , Republic of Georgia omar.mukbaniani@tsu.ge
DOI: 
https://doi.org/10.23939/chcht11.02.201
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Keywords:

Abstract: 
New polymer composites on the basis of epoxy resin and different fine dispersed mineral powders (andesite, bentonite, diatomite, liquid glass and quartz sand) were obtained and their mechanical (ultimate strength), thermal (temperature dependence of the softening) and water absorption properties were investigated. It was established that all properties of these materials were essentially improved, when the same fillers modified by tetraetoxysilane (TEOS) were used. It was experimentally shown that composites containing binary fillers – diatomite and andesite at definite ratio – are characterized with so called synergistic effect – the increase in maximal physical or chemical properties. Separately the experimental data on coefficients of reagents diffusion, sorption and penetration, mechanical strengthening, coefficient of heat conductivity and stability to sulfur acid have been investigated. It was shown that exploitation properties of these materials were essentially better in comparison with well known silicate composites. Created materials were characterized by low shrinkage and also low internal stress after hardening. Using the method of mathematical modeling of experiment the optimization of the composition of obtained materials has been performed. Experimental results were explained in terms of structural peculiarities of polymer materials.
References: 

[1] Daud W., Bersee, H. , Picken S. and Beukers A.: Comp. Sci. Techn., 2009, 69, 2285. https://doi.org/10.1016/j.compscitech.2009.01.009
https://doi.org/10.1016/j.compscitech.2009.01.009

[2] Alexandre M., Dubois P., Sun T. and Garces J.: Polymer, 2002, 43, 2123. https://doi.org/10.1016/S0032-3861(02)00036-8
https://doi.org/10.1016/S0032-3861(02)00036-8

[3] Gorrasi J., Tortora M., Vittoria V. et al.: Polymer, 2003, 44, 2271. https://doi.org/10.1016/S0032-3861(03)00108-3
https://doi.org/10.1016/S0032-3861(03)00108-3

[4] Chen H., Giannelis E. and Sogah D.: J. Am. Chem. Soc., 1999, 121, 1615. https://doi.org/10.1021/ja983751y
https://doi.org/10.1021/ja983751y

[5] Shipp D.: Polymer-Layered Silicate Nanocomposites. Clarkson University, Elsevier, Potsdam, NY 2010.

[6] Vo L. and Giannelis E.: Macromolecules, 2007, 40, 8271. https://doi.org/10.1021/ma071508q
https://doi.org/10.1021/ma071508q

[7] Pavlidou S. and Papaspyrides C.: Prog. Polym. Sci., 2008, 33, 1119. https://doi.org/10.1016/j.progpolymsci.2008.07.008
https://doi.org/10.1016/j.progpolymsci.2008.07.008

[8] Zelenev Y. and Bartenev G.: Fizika Polymerov. Vysshaya shkola, Moskva 1978.

[9] Zhang Y., Broekhaus A. and Picchioni F.: Macromolecules, 2009, 42, 1906. https://doi.org/10.1021/ma8027672
https://doi.org/10.1021/ma8027672

[10] Fink I.: Reactive Polymers. Fundamental and Applications, Zurich 2013.

[11] Crossley R., Schubel P. and Stevenson A.: J. Reinf. Plast. Comp., 2014, 33, 58. https://doi.org/10.1177/0731684413502108
https://doi.org/10.1177/0731684413502108

[12] Maksimov R. and Plume E.: Mech. Compos. Mater., 2014, 50, 613. https://doi.org/10.1007/s11029-014-9449-4
https://doi.org/10.1007/s11029-014-9449-4

[13] Ray S. and Okamoto M.: Prog. Polym. Sci., 2003, 28, 1539. https://doi.org/10.1016/j.progpolymsci.2003.08.002
https://doi.org/10.1016/j.progpolymsci.2003.08.002

[14] Shamanauri L.: Doctoral thesis. Georgian Technical University, Tbilisi 2009.

[15] Zedginidze I.: Metod Planirovaniya Experimenta dlya Issledovaniya Mnogocomponentnykh System. Nauka, Moskva 1976.