Impact of epoxy resin modification on their strength parameters
Andrzej Szewczak
a.szewczak@pollub.plDepartment of Construction; Faculty of Civil and Architecture; Lublin University of Technology; (Poland)
https://orcid.org/0000-0001-5933-0483
Abstract
Modifications of polymer composites are one of the fastest developing fields of technology. Research is focused on two directions: obtaining new composites or modifying existing materials. The first group of tests uses methods for preparing new chemical formulas of polymers containing, as the main structural element: carbon (organic polymers) or silicon (inorganic polymers). In the second group, the research consists in seeking methods to modify the properties of polymers. In building construction, among the others types, the glues (adhesive polymers) are used. They are exerted to connect materials with different physical and
mechanical properties. Under the influence of the factor initiating the crosslinking reaction (hardener or temperature), the polymers obtain a solid form. The strength of the glued joint depends on the initial parameters of the glue resin and the target substrate of its application.
The glued surface is usually the weakest element in this connection in terms of the possibility of damage due to the effects of loads, therefore methods to improve the strength parameters of adhesives are sought. The study presents the results of own research on methods of modification of a selected epoxy resin used in the technique as a glue. In order to ensure effective mixing of the adhesive with the fillers, ultrasound energy was used. After the resin had hardened, tests were carried out to determine the hardness and tensile strength of the obtained composites. Based on the results, SEM analysis and observation of the effect of ultrasound, the phenomena affecting the changes in the above mechanical properties were explained.
Supporting Agencies
Keywords:
epoxy resins, microsilica, carbon nanotubes, ultrasoundReferences
Rabek J. F., Modern knowledge about the polymers, PWN, Warsaw 2015
Google Scholar
Florjańczyk Z., Penczek S., Polymer chemistry. Basic synthetic polymers and their applications, Warsaw University of Technology Publishing House, vol. 2, Warsaw 2001.
Google Scholar
Ehrenstein G. W., Brocka – Krzemińska Ż., Polymer materials: structure, properties, application, PWN, Warsaw 2016.
Google Scholar
Sadowski Ł., Czarnecki S., Hoła J., 2016, “Evaluation of the height 3D roughness parameters of concrete substrate and the adhesion to epoxy resin”, International Journal of Adhesion and Adhesives, vol. 67, 2016, pp. 3–13. https://doi.org/10.1016/j.ijadhadh.2015.12.019
Google Scholar
May I., Clayton A., Epoxy resins. Chemistry and Technology, Marcel Dekker Inc., New York, 2018.
Google Scholar
Lokensgard E., Industrial Plastics. Cengage Learning, Eastern Michigan University, Ypsilanti, Michigan, 2016.
Google Scholar
Fang-Long J., Xiang L, Soo-Jin P., “Synthesis and application of epoxy resins: review”, Journal of Industrial and Engineering Chemistry, vol. 29, pp. 1-11, 2015, https://doi.org/10.1016/j.jiec.2015.03.026
Google Scholar
Wypych G., Handbook of fillers. ChemTech Publishing, Toronto, 2016.
Google Scholar
Teh P.L. et al., “The properties of epoxy resin coated silica fillers composites”, Materials Letters, vol. 61, Issues 11–12, 2007, pp. 2156-2158. https://doi.org/10.1016/j.matlet.2006.08.036
Google Scholar
Park J. S., Jin. F-L., “Thermal properties of epoxy resin/filler hybrid composites”, Polymer Degradation and Stability, vol. 97, issue 11, 2012, pp. 2148-2153. https://doi.org/10.1016/j.polymdegradstab.2012.08.015
Google Scholar
Chikhi N., Fellahi S., Bakar M., “Modification of epoxy resin using reactive liquid (ATBN) rubber”, European Polymer Journal, vol. 38, issue 2, 2002, pp. 251-264. https://doi.org/10.1016/S0014-3057(01)00194-X
Google Scholar
Sprenger S., “Epoxy resins modified with elastomers and surface-modified silica nanoparticles”, Polymer, vol. 54, nr 18, pp. 4790 – 4797, 2013. https://doi.org/10.1016/j.polymer.2013.06.011
Google Scholar
Nakamura Y. et al., “Effects of particle size on mechanical and impact properties of epoxy resin filled with spherical silica”, Journal of Applied Polymer Science, vol. 45, issue 7, pp. 1281 – 1289, 1992. https://doi.org/10.1002/app.1992.070450716
Google Scholar
Fic S., Szewczak A., Barnat – Hunek D., Łagód G., 2017, “Processes of fatigue destruction in nanopolymer-hydrophobised ceramic bricks”, Materials, no 1, vol. 10, 2017. https://doi.org/10.3390/ma10010044
Google Scholar
Fic S., Szewczak A., Kłonica M., 2015, Adhesive properties of a low molecular weight polymer modified with nanosilica and disintegrated with ultrasounds for hydrophobization of building ceramics, Polimery, vol. 11-12, pp. 730-734, 2015, https://www.doi.org/10.14314/polimery.2015.730
Google Scholar
Szewczak A., Szeląg M., Modifications of epoxy resins and their Influence on their viscosity, in: IOP Conference Series: Materials Science and Engineering, vol. 471, s. 1-9, 2019. doi: https://www.doi.org/10.1088/1757-899X/471/2/022038
Google Scholar
Szewczak A. Szeląg M., Viscosity and free surface energy as parameters describing the adhesion of the epoxy resin to the substrate, IOP Conference Series: Materials Science and Engineering, vol. 484, nr 1, s. 1-7, 2019, doi: https://www.doi.org/10.1088/1757-899X/484/1/012003
Google Scholar
PN-EN ISO 3673-2:2012, Plastics – Epoxy resins – Part 2: Preparation of test pieces and determination of properties.
Google Scholar
PN-EN ISO 527-1. Determination of mechanical strength at static tensile. General rules.
Google Scholar
PN-EN ISO 527-2. Determination of mechanical strength at static tensile. Plastic testing conditions.
Google Scholar
Authors
Andrzej Szewczaka.szewczak@pollub.pl
Department of Construction; Faculty of Civil and Architecture; Lublin University of Technology; Poland
https://orcid.org/0000-0001-5933-0483
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