Compatibilization Efficiency of Polybutadiene-Grafted Maleic Anhydride in Ethylene-Propylene Diene Rubber/Epoxidized Natural Rubber Blends

Sarawut Prasertsri; Pranee Nuinu; Sansanee Srichan; Siriwat Radabutra; Chaiwute Vudjung; Saowaluk Boonyod

doi:10.4028/www.scientific.net/KEM.705.45

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Compatibilization Efficiency of Polybutadiene-Grafted Maleic Anhydride in Ethylene-Propylene Diene Rubber/Epoxidized Natural Rubber Blends
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 705Compatibilization Efficiency of...

Compatibilization Efficiency of Polybutadiene-Grafted Maleic Anhydride in Ethylene-Propylene Diene Rubber/Epoxidized Natural Rubber Blends

Abstract:

This research aims to investigate the efficiency of polybutadiene-grafted maleic anhydride (PB-g-MAH) as the compatibilizer for ethylene-propylene diene rubber and epoxidized natural rubber (EPDM/ENR) blends. PB-g-MAH was varied from 0-10 parts per hundred parts of rubber (phr), and the cure characteristics, mechanical and dynamic properties of 70/30 EPDM/ENR blends with and without compatibilizer were evaluated. It was found that the minimum torque, maximum torque, scorch and cure times of the blends increased after adding PB-g-MAH, whereas cure rate decreased. The morphology of the blend is improved by the addition of PB-g-MAH in small amounts, owing to an improved compatibility of these rubbers confirmed by dynamic mechanical property. The hardness and oil resistance increased with increasing PB-g-MAH content. Of all blends investigated, the blend compatibilized with 2-4 phr of PB-g-MAH shows the optimum mechanical properties and thermal resistance.

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Periodical:

Key Engineering Materials (Volume 705)

Pages:

45-49

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.705.45

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Online since:

August 2016

Authors:

Sarawut Prasertsri*, Pranee Nuinu, Sansanee Srichan, Siriwat Radabutra, Chaiwute Vudjung, Saowaluk Boonyod

Keywords:

Compatibilization, Dynamic Properties, Mechanical Properties, Rubber Blends

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