tailieunhanh - Effects of several factors on anti–vibration ability of epdm rubber
In this research, ethylene–propylene–diene (EPDM) rubber, a type of synthetic rubber with excellent anti–vibration and anti–noise properties, was studied for the application in anti–vibration pads. Via changes in the concentration of substances in the mixtures such as carbon black, triethanolamine (TEA) and sulfur, the mechanical properties and the anti–vibration efficiency of the EPDM rubber samples were determined using mechanical tester. | Journal of Science and Technology 55 (1B) (2017) 202–207 EFFECTS OF SEVERAL FACTORS ON ANTI–VIBRATION ABILITY OF EPDM RUBBER Phan Quoc Phu*, Nguyen Khac Tien, La Thi Thai Ha 1 Faculty of Materials Technology, HCMUT–VNUHCM 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam * Email: pqphu@ Received: 30 December 2016; Accepted for publication: 6 March 2017 ABSTRACT In this research, ethylene–propylene–diene (EPDM) rubber, a type of synthetic rubber with excellent anti–vibration and anti–noise properties, was studied for the application in anti–vibration pads. Via changes in the concentration of substances in the mixtures such as carbon black, triethanolamine (TEA) and sulfur, the mechanical properties and the anti–vibration efficiency of the EPDM rubber samples were determined using mechanical tester. As a result, the EPDM rubber samples containing about 45 % of carbon black N330, 1 % of TEA and 1 % of sulfur showed some good results including the shore hardness about 62 A, the compressive stress at peak of N/mm2 and the anti–vibration efficiency approximately 72 %. Keywords: EPDM rubber, anti–vibration properties, anti–vibration pads. 1. INTRODUCTION In modern industry, the major problems associated with vibrations such as deterioration mechanisms, productivity decreases and lifetime depression in rotating machines have been indicated. The vibrations have also illustrated serious health effects in humans. Since Cyril M. Harris and Allan G. Pierol wrote the first book to give the concepts of vibration and anti–vibration as well as its application in 1961 [1], there were a lot of significant achievements for minimizing the vibrations such as effect of viscoelastic damper on high–rise buildings during earthquakes [2], viscoelastic material properties for passive vibration damping [3], system dynamics and long–term behaviour of rubber vibrations in scientific research [4], and so on. In Vietnam, there are many companies have .
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