RUBBER COMPOSITION FOR BLADDER

摘要

PURPOSE: A rubber composition for bladder is provided, to improve the acid resistance and the air permeability resistance by adding an unsaturated fatty acid derivative, and thereby reducing the degree of unsaturation of rubber. CONSTITUTION: The rubber composition comprises 100 phr of rubber component; and 1-3 phr of the unsaturated fatty acid derivative represented by CH3(CH2)nCH=CH(CH2)mCH2C(=O)-R1 or CH3(CH2)nCH=CH(CH2)mCH2-CN, wherein n is an integer of 5-20; m is an integer of 7-20; and R1 is -OCH3, -OC2H5, -NH2, -NHCH3 or -NHC2H5.