Fabrication And Characterization Of Rubber Seed Shell Powder (RSSP) Filled Polypropylene (PP) Composite

Rafeek Ahmad, Mohamed Asyraf (2008) Fabrication And Characterization Of Rubber Seed Shell Powder (RSSP) Filled Polypropylene (PP) Composite. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of doing this project is to study the characteristics of rubber seed shell powder (RSSP) filled polypropylene (PP). The matrix material used in this study was based on commercially available unsaturated polypropylene, obtained from university’s Polymer Laboratory. The natural bio-resources used in this project are rubber seed shell powder (RSSP). The rubber seed was collected at the rubber estate. The shell is separated with the seed after the seed was broken and cleaned using water for used as reinforcement in this project. The rubber seed shell then dried at 110°C for 24 hours to remove the storage moisture. The shells will be pulverized using variable rotor mills to transform the shells into powder. The pulverization process was conducted at University Tun Hussein Onn Malaysia (UTHM). The powder size is about 125μm-355 μm. Three weight fractions are used in the composite formulation which is 5%, 10%, and 15%. Two type of mold were used which is 2mm and 3mm to produce the sample regarding to the required standard. In order to examine the mechanical properties, tensile test, flexural test and impact test are carried out. With the test, 5% was the best composition compared to other. Adding the composition of RSSP cause a decrease in tensile strength and make the young’s modulus, flexural modulus, flexural strength, impact strength increase. From the scanning electron microscope (SEM), the homogeneity, crack, fracture surface, bond failures and physical defects on the tensile fracture can be observed.

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