Degradation of physical and mechanical property of starch modified natural rubber composites

Md. Mussa, Md. Norazree (2018) Degradation of physical and mechanical property of starch modified natural rubber composites. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, there are so many application that can be related to the natural rubber. One of the major application is on tire production. This is because of its properties that will give benefits to the product such as high tensile strength, high hardness and has high deformation state. Unfortunately, when the tire cannot be used anymore in automobile application, there are some alternative way to reuse it either to decompose it through combustion. Recycling of waste tire will reduced the environmental effect such as green house effect, air polution and water polution. However, in recycling process, the waste tire need to be altered in order to make a new product. Cutting, and bending of waste tire are some of altered process. So that, aim of this research are to study about the effect of incorporation starch with natural rubber composites. First stage is the preparation of the samples. It started from modification of starch with silane, then is compounding process by using internal mixer. At last, hot compress is used in order to fabricate the sample. The formulation sample is located at two conditions which is in the room temperature and soil burial condition. The formulation sample was collected after certain days which are 0, 3, 7, 14, and 28 days testing process. Tensile, density and hardness test are being testing in this process. Next, the morphological is being analysed. In this process, several machine is being used which is OM, SEM, XRD, DMTA and FTIR machine. From the results, it can be observed that presence of starch will will lead to decreasing of tensile properties and the decrement of the rate of degradation of the tensile, density and hardness properties after 28 days also has been interpret.

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