Prototipe Crrrf (Compound Rubber Reinforce Ramie Fiber) Dengan Perbandingan Campuran Serat Rami

Huda, Nurul (2021) Prototipe Crrrf (Compound Rubber Reinforce Ramie Fiber) Dengan Perbandingan Campuran Serat Rami. Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

The purpose of this study is to modify compound formulas that use natural rubber which a matrix with hemp reinforcement in the manufacture of automotive products, with variations in fiber blends of 10 phr, 15 phr and 25 phr. That will be applied to the manufacture of motorcycle engine mounting. The plan of this research is to adding natural fibers that add strength and toughness to machineinstalled products, and can be a further development to see other properties. The results of this study without heat process which was the tensile test for fiber variations of 10 phr, 15 phr and 25 phr were 10.37 N/mm², 9.21 N/mm² and 8.21 N/mm². However, The Increased in length with the same method with fiber variations were 190%, 170% and 170%. The breaking stress used the heat process of the fiber variations of 10 phr, 15 phr and 25 phr were 4.29 N/mm², 3.02 N/mm² and 4.10 N/mm². In the same way, the elongations at break were 101%, 44% and 41.8%. In this study, the hardness values of the fiber variation of 10 phr, 15 phr and 25 phr were 63.8 shore A, 71.1 shore A and 77 shore A, while the manufactured product obtained a value of 71 shore A. Furthermore, In the compression tested results of each variation of 10 phr, 15 phr and 25 phr fibers were 3.3%, 6.6% and 10%, while the manufactured products got a value of 20%. Based on this research, it could be concluded that the results that fulfilled the quality requirements of SNI 06-1540-1989 which was the requirements for making engine bearing rubber was at the variations of 10 phr, while the fiber variations of 15 phr and 25 phr had not fulfilled the quality requirements of SNI 06-1540-1989. Keywords: Matrix, Engine Mounting, heat proces, Shore A, SNI 06-1540-1989

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