Blends of chloroprene rubber (CR) and bromobutyl rubber (BIIR) with low-temperature vulcanization (LTV) technology were found suitable for the encapsulation of temperature-sensitive undersea sensors. Polymeric blends are susceptible to the aging process due to external environments such as heat, oxygen, ozone, light, and mechanical stresses, etc. Hence, the longevity of these blends for hostile seawater applications is a great concern. The marine aging of rubber blends was not investigated much. In this study, the LTV blends with a curing system based on lead and zinc oxides were subjected to accelerated aging in a 3.5% aqueous solution of NaCl from 40°C to 70°C. The retention of tensile strength, % elongation and modulus properties were estimated. It was observed that aging could lead to an initial increase in the modulus and a considerable decrease in ultimate tensile strength and elongation values with an increase in the aging period. Reduction in elongation at break showed a gradual decrease with an increase in both temperature and exposure time. It was observed that the blends with lead oxide cure system were prone to more degradation than ZnO-based blend. A life of 6.5 years and 5.3 years at 25°C for blends based on ZnO and lead oxide cure systems was estimated. The water diffusion coefficient was found to be of the order of 10⁻¹² mm² s⁻¹ for both blends.

氯丁橡胶（CR）和溴丁基橡胶（BIIR）与低温硫化（LTV）技术的共混物被发现适合封装对温度敏感的海底传感器。由于诸如热，氧，臭氧，光和机械应力等外部环境，聚合物共混物易受老化过程的影响。因此，这些共混物在恶劣的海水应用中的使用寿命非常令人关注。橡胶共混物的海洋老化研究不多。在这项研究中，将具有基于铅和锌氧化物的固化系统的LTV混合物在3.5％NaCl水溶液中从40°C加速至70°C进行加速老化。估计了拉伸强度，％伸长率和模量性能的保持率。观察到，随着时效时间的增加，时效可能会导致模量的初始增加以及极限抗拉强度和伸长率值的显着降低。断裂伸长率的降低显示出随着温度和暴露时间的增加而逐渐降低。观察到，具有氧化铅固化体系的共混物比基于ZnO的共混物更易于降解。估计基于ZnO和氧化铅固化体系的混合物在25°C下的寿命分别为6.5年和5.3年。发现水扩散系数约为10 观察到，具有氧化铅固化体系的共混物比基于ZnO的共混物更易于降解。估计基于ZnO和氧化铅固化体系的混合物在25°C下的寿命分别为6.5年和5.3年。发现水扩散系数约为10 观察到，具有氧化铅固化体系的共混物比基于ZnO的共混物更易于降解。估计基于ZnO和氧化铅固化体系的混合物在25°C下的寿命分别为6.5年和5.3年。发现水扩散系数约为10两种混合物的^-12 mm ² s ^-1。