ELASTOMERIC NANOCOMPOSITES DEVELOPMENT FOR O-RINGS MANUFACTURING
Maria Daniela Stelescu, Mihai Georgescu, Maria Sonmez
Pages: 81-89
Published: 18 Sep 2019
Views: 1,087
Downloads: 118
Abstract: This paper presents studies on the development and characterization of nanocomposites based on natural rubber, plasticized starch, precipitated silica and layered clay such as organically modified montmorillonite (OMMT). Mixtures were made containing 0, 3 and 6 phr (parts per 100 parts rubber) OMMT, respectively. They were obtained by melt intercalation in a Brabender mixer at 12/80 rotations/min and 100-150ºC, for 10 minutes. Curing agents (sulfur and curing accelerators) were embedded on a laboratory roller at 90ºC, friction 1:1.1, processing time 5 minutes. Rubber specimens were obtained by compression, using a hydraulic press at 165ºC and a pressing force of 300 kN. Curing time, determined using the Monsanto rheometer, decreases with the increased amount of OMMT in the mixtures. At the same time, it was noticed that mixtures containing OMMT show improvement in physical-mechanical properties and resistance in various working environments specific to the food and pharmaceutical industry. Permanent compressive deformation 25%, 24hx70°C shows very good values for mixtures containing OMMT. The new types of nanocomposites may be used to obtain O-rings for the sugar industry or for other areas of application.
Keywords: natural rubber, nanocomposites, montmorillonite, characteristics
Cite this article: Maria Daniela Stelescu, Mihai Georgescu, Maria Sonmez. ELASTOMERIC NANOCOMPOSITES DEVELOPMENT FOR O-RINGS MANUFACTURING. Journal of International Scientific Publications: Materials, Methods & Technologies 13, 81-89 (2019). https://www.scientific-publications.net/en/article/1001882/
Back to the contents of the volume
© 2025 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
