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Vulcanization Kinetics and Mechanical Properties of Ethylene Propylene Diene Monomer Thermal Insulation

*Mohamad Irfan Fathurrohman  -  Indonesian Rubber Research Institute, Jl.Salak no.1 Bogor 16151,, Indonesia
Dadi Rusadi Maspanger  -  Indonesian Rubber Research Institute, Jl.Salak no.1 Bogor 16151,, Indonesia
Sutrisno Sutrisno  -  Rocket Technology Center, National Institute of Aeronautics and Space, Jl. Raya LAPAN No. 2, Mekarsari, Rumpin, Bogor 16350, Indonesia

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The vulcanization kinetics of Ethylene-propylene diene monomer (EPDM) rubber thermal insulation was studied by using rheometer under isothermal condition at different temperatures. The rheometry analysis was used to determining the cure kinetic parameters and predicting the cure time of EPDM thermal insulation. The experimental results revealed that the curing curves of EPDM thermal insulation were marching and the optimum curing time decreased with increasing the temperature. The kinetic parameters were determined from the autocatalytic model showed close fitting with the experimental results, indicating suitability of autocatalytic model in characterizing the cure kinetics. The activation energy was determined from the autocatalytic model is 46.3661 kJ mol-1. The cure time were predicted from autocatalytic model and the obtained kinetic parameter by using the relationship among degree of conversion, cure temperature, and cure time. The predictions of cure time provide information for the actual curing characteristic of EPDM thermal insulation. The mechanical properties of EPDM thermal insulation with different vulcanization temperatures showed the same hardness, tensile strength and modulus at 300%, except at temperature 70 °C, while the elongation at breaking point decreased with increasing temperature of vulcanization. © 2015 BCREC UNDIP. All rights reserved

Received: 8th April 2014; Revised: 7th January 2015; Accepted: 16th January 2015

How to Cite: Fathurrohman, M.I., Maspanger, D.R., Sutrisno, S. (2015). Vulcanization Kinetics and Mechanical Properties of Ethylene Propylene Diene Monomer Thermal Insulation. Bulletin of Chemi-cal Reaction Engineering & Catalysis, 10 (2), 104-110. (doi:10.9767/bcrec.10.2.6682.104-110)



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Keywords: Vulcanization kinetics; EPDM; thermal insulation; autocatalytic model
Funding: Ministry of Research and Technology

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