The effect of Sn-Al-C composite powders on the electromagnetic interference shielding of capsule building materials

摘要

The Sn substrate composite powder technology for capsule building was tested in this study,and the trend of adding graphite was studied.Then,a series of materials with higher resistance to electromagnetic waves were investigated.Based on low-cost advantages and particular categories of architectural application,the Sn-Al-C(SAC)ternary system powder was studied using the coating method,which can be applied to cement or plastic surfaces.The effects of particle size,content ratio of C and Sn-Al additions,stacking effect,and influence of porosity and thickness on the electromagnetic shielding mechanism were analyzed and discussed in detail.