新型水声透声橡胶材料的制备及性能研究

以氯丁橡胶(CR)为透声材料的基体橡胶，研究顺丁橡胶（BR）/CR并用比对透声材料性能的影响。结果表明：与牌号为A－90的CR 相比，牌号为CR322的CR未出现结晶，在0～40 ℃范围内的储能模量稳定，更适于作为水声透声材料的基体。与BR并用后，CR/BR并用胶对应CR组分的玻璃化温度降低，在0～40 ℃范围内储能模量稳定，表现出较好的耐寒性能和低温度敏感性，但物理性能小幅降低；CR硫化胶和CR/BR并用胶透声材料均表现出优异的透声性能和水密性能。;The acoustic materials were prepared by using chloroprene rubber(CR) as the matrix， and the properties of butadiene rubbe (BR)/CR with different blend ratio were investigated.The results showed that，compared with CR A－90，CR322 showed no crystallinity and possessed steady storage modulus in the temperature range of 0～40 ℃，and thus was more suitable for the application.Compare to CR，the glass transition temperature of BR/CR blends decreased，their storage moduli were steady in the temperature range of 0～40 ℃，the cold resistance was better and the temperature sensitivity was low，while the physical properties dropped only slightly.The acoustic materials of CR and CR/BR blend showed excellent acoustic performance and water tightness