The high conductivity silicone rubber prepared by filling silicone rubber with silver plated aluminum powder was studied,and the environmental adaptability of high conductive silicone rubber was analyzed by comparing the performance of the initial and the airborne equipment in the environmental tests.The results show that the high temperature,low temperature,tem-perature shock,humid heat,salt spray mold,acidic atmosphere,ozone and solar irradiation are nondestructive on the density and hardness of the high conductive silicone rubber.The tensile strength and elongation at break of the rubber decreases after so-lar irradiation and ozone environment.After 56 days'solar irradiation,the surface resistance increases from 0.028 Ω to 0.156 Ω,and the electrical performance decreases significantly.Therefore,when designing and using the highly conductive sili-cone rubber filled with silver-coated aluminum powder,it is necessary to reserve a margin for its conductivity to meet the durability requirements of the equipment.
关键词
高导电性/导电硅橡胶/环境适应性/太阳辐照/耐臭氧/性能衰减
Key words
high conductivtity/conductive silicone rubber/environmental adaptability/solar irradiation/ozone/performance decay
维普
万方数据