Ak. Bhowmick et al., SURFACE-PROPERTIES OF EPDM, SILICONE-RUBBER, AND THEIR BLEND DURING AGING, Journal of applied polymer science, 57(5), 1995, pp. 631-637
Surface energy of EPDM, silicone rubber, and their 50 : 50 (by weight)
blend during aging was determined by contact angle measurement using
water and formamide as the probe liquids. The surface energy increases
initially with aging time. The results are explained on the basis of
the polar component of the surface energy. Blending offers a good degr
ee of protection toward aging of EPDM rubber. The generation of polar
groups during aging is confirmed by IR and ESCA investigations. (C) 19
95 John Wiley and Sons, Inc.