Modification of EPDM with Alkylphenol Polysulfide for Use in Tire Sidewalls, 2 – Mechanistic and Morphological Characterizations

✍ Scribed by Hongmei Zhang; Rabin N. Datta; Auke G. Talma; Kangbo Lu; Joachim Loos; Jacques W. M. Noordermeer

• Book ID: 102940967
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 940 KB
• Volume: 295
• Category: Article
• ISSN: 1438-7492
• DOI: 10.1002/mame.200900126

✦ Synopsis

Abstract

It has been shown that the mechanical properties of NR/BR/EPDM blends can be improved by using APPS as a modifier. In this paper, it is demonstrated that modification of EPDM with APPS takes place and saturation occurs when the APPS amount reaches 5 wt.‐%. It is shown that the rubber/carbon black affinity improves by using APPS‐grafted EPDM in the blend. TEM and STEM images clearly show that the NR/BR/APPS‐EPDM blend contains a significantly higher content of homogeneous rubber phase than the unmodified NR/BR/EPDM blend. The much better distribution of the carbon black in the APPS‐EPDM phase is considered the main reason for the improvement in properties of the blend.

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