磁性橡胶的制备与性能研究

以聚乙二醇（PEG）6000表面改性的四氧化三铁为磁性填料制备改性四氧化三铁/NR/EPDM磁性橡胶，并对其微观结构、耐老化性能、耐酸碱性能、耐油性能和低温脆性进行研究。结果表明：以NR/EPDM并用胶为基体制备的磁性橡胶耐热老化性能、耐臭氧老化性能、耐酸碱性能和耐油性能均高于以NR为基体的磁性橡胶；基体橡胶种类对磁性橡胶的低温脆性影响不大。;Using ferroferric oxide modified by polyethylene glycol 6000 as magnetic filler,the ferroferric oxide/NR/EPDM magnetic rubbers were prepared,and their microstructure,aging property,acid and alkali resistance,oil resistance and low temperature brittleness were investigated.The results showed that,the heat aging property,ozone resistance,acid and alkali resistance,oil resistance of modified ferroferric oxide/NR/EPDM magnetic rubber were better than those of ferroferric oxide/NR magnetic rubber,and the matrix rubber type had little influence on the low temperature brittleness of magnetic rubber