【摘要】 研究了N ,N -间苯撑双马来酰亚胺 (HVA - 2 )对NR的抗返原作用及其在不同硫化时间对硫化胶力学性能的影响。通过硫化特性、平衡溶胀实验和力学性能的测试表明 ,HVA - 2具有良好的抗返原效果 ;在 14 3℃经过 1小时较长硫化时间硫化后 ,硫化胶仍具有较好的力学性能 ,尤其是 30 0 %定伸强度和撕裂强度有较大提高。更多还原

【Abstract】 A study was made on the anti recovery effects of N,N meta phenylene bis maleimide (HVA-2) on NR and its effects on the mechanical properties of vulcanizate in various curing time at 143℃. The analyses of curing characteristics and apparent crosslinking densities as well as mechanical properties of NR vulcanizates showed that HVA-2 was an effective anti recovery agent and vulcanizates added with HVA-2 had good mechanical properties after a long curing time, especially 300% modulus and tear strength.更多还原