国产IIR的应用研究

Study on application of domestic IIR

研究国产IIR175 1在气囊、隔膜及自行车内胎中的应用效果 ,并与进口产品IIR2 68进行对比。IIR175 1用于气囊和隔膜工具胶中 ,其半成品和成品的强伸性能均较好 ;用于自行车内胎中 ,其性能达到国家标准要求 ;IIR175 1混炼胶的门尼粘度大于IIR2 68,硫化胶耐高温热老化性能和抗硫化返原能力不如IIR2 68,生产的气囊和隔膜在使用后期易变软 。

The application of domestic IIR1751 in air bladder,diaphragm and inner tube of bicycle tire was investigated by using imported product IIR268 as reference.The results showed that for air bladder and diaphragm with IIR1751,the tensile strength and elongation at break of both semi product and finished product were better;for inner tube of bicycle tire with IIR1751,the performance was in accordance with the requirements specified in the relevant national standard;the Mooney viscosity of IIR1751 mix was higher than that of IIR268 compound;the high temperature aging properties and anti reversion of IIR1751 vulcanizate were poorer than those of IIR268 vulcanizate;and the air bladder and diaphragm with IIR1751 were subjected to soften in the late service life.