MODELLING THE MECHANICAL AND MICROSTRUCTURE PROPERTIES OF CELLULAR RUBBER PRODUCED VIA MICROWAVE HEATING METHOD

MD AIMAN DANIAL BIN MD YUSOFF, - (2022) MODELLING THE MECHANICAL AND MICROSTRUCTURE PROPERTIES OF CELLULAR RUBBER PRODUCED VIA MICROWAVE HEATING METHOD. [Final Year Project Report] (Unpublished)

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Abstract

There were various types of cellular rubber and many ways to produce it, such as conventional heating. However, the conventional heating method did not give a great result in terms of the quality of the cellular rubber. Another aspect that needs to be acknowledged is the type of blowing agent used for foaming process on the rubber. Unfortunately, the usage of Chemical Blowing Agent (CBA) has a bad impact on the environment and public health. Hence, the main activity of this final year project was to produce cellular rubber using water as a green and sustainable blowing agent assisted by microwave and convection heating methods. The water content was varied from 0.5 to 2.0 part per hundred rubbers (phr). Two different setting parameters were used in this study, where the microwave power was varied at 600 W and 1000 W at different exposure times, while convection heating was maintainedat 150 ℃. This report also The properties of the produced cellular rubber were chracterised in terms of Scanning Electron Microscope (SEM), Optical Microscope, Fourier Infrared Spectroscopy (FTIR), Compression Test, Density Test, Thermalgravimetric Analysis Test and Modelling Simulation of rubber foam. Then, the result obtained was discussed and concluded on which parameter settings and quantity of water as blowing agent give the best properties of the cellular rubber. This project also showcased a modelling that built a cellular rubber model by using Solidworks and a compression simulation was done on the model by using Ansys. This showed the correlation between the experimental data from compression test and simulation data on the effect of cell type of the cellular rubber model. The best processing parameter was implementing lower power (600 W) and longer processing time (18 minutes) and the optimum water content of the rubber foam was 0.5 phr.

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