This study examined blends of styrene butadiene rubber(SBR) and chloroprene rubber(CR) prepared from an open 2-roll mill following the conventional polymer blend method for a wide range of the blend composition. Rubber vulcanizates were manufactured by hot press and then mechanical properties, heat and ozone resistance of the specimens were examined. Due to the post cure during the aging test, hardness of vulcanizates was increased. It was found that the undesirable characteristics of heat and ozone resistance of pure SBR was significantly improved through the blending of SBR with CR.

• 박찬영(부경대학교 화학공학부) | Chan Young Park
• 박성수(부경대학교 화학공학부) | Seong Soo Park
• 민성기(부경대학교 화학공학부) | Seong Kee Min