Preparation and Properties of Printing Rubber Roller : (I) Oil Resistance and Mechanical Properties of Butabiene Rubber/Nitrile Rubber Compounds

인쇄용 고무roller의 제조와 물성: (I) 부타디엔고무와 니트릴고무 혼련물의 내유성 및 기계적 성질

In this experiment butadiene rubber(BR)/acrylonitrile butadiene rubber(NBR) blends was prepared and then the applicability of BR/NBR blends as printing rubber roller was examined. With the aid of open 2-roll mill, BR, NBR and another chemical additives were compounded. Then rubber vulcanizates were manufactured by hot press and maximum torque, Mooney viscosity, mechanical properties and oil resistance of the test specimens were measured. With prolonged oil aged treating time, BR/NBR blends became soft and so the hardness of blends decreased. It could be explained by the swelling of rubber matrix with oil penetration in to rubber molecules. The undesirable low value of oil resistance of BR was significantly improved by blending BR with NBR.