Characterization and mechanical properties of tin dioxide reinforced natural rubber for electrical insulators

Shaari, Muhamad Hariez (2023) Characterization and mechanical properties of tin dioxide reinforced natural rubber for electrical insulators. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The main objective of this study is on the mechanical and physical properties of Natural Rubber (NR) reinforced Tin Dioxide (SnO2). Tin Dioxide (SnO2) is an inorganic-based filler that is used when the melt compounding process is utilised for Natural Rubber. Tin Dioxide was selected for use as a strengthening agent for the mechanical and physical properties of Natural Rubber due to the properties it has that enable it to do so. The primary purpose of this is to determine the composition of Tin Dioxide that is most effective when combined with Natural Rubber. A few tests, including both physical and mechanical ones, will be performed on the compound to identify its properties. In order to investigate the material's different mechanical characteristics, tensile testing will be carried out. The mechanical characteristics of the compound will be determined using a tensile test as well as a Shore hardness test. Under Scanning Electron Microscope, the structure of the compound will be analysed for its morphology. The combination of Natural Rubber compound and Tin Dioxide based on 100 phr of the Natural Rubber and different proportions of tin dioxide (SnO2) at 0 phr, 0.5 phr, 1 phr,3 phr, and 7 phr was found to be the best compounding formulation for the fabricated compound. All of those rubber-based formulations called for the same amount of curing additives, which were as follows: 2.5 phr of sulphur (s), 5 phr of zinc oxide (Zn0), 2 phr of stearic acid, 1 phr of tetraethyl thiuram disulphate (TMTD), and 1 phr of 6PPD. Based on data collected, 3.0 phr of SnO2, has the highest tensile strength as well as shore hardness value and also better in morphological compared to other composition.

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