플라스마를 적용한 알루미늄의 표면처리가 알루미늄/CFRP복합재의 접합강도에 미치는 영향

Abstract

This paper documents the effect of surface treatment of aluminum on the bonding strength of aluminuin/CFRP composites, The surface of aluminum panel was treated by DC plasma. The optimal treatment condition of the aluminum was determined by measuring the contact angle and T-peel strength as functions of mixture ratio of acetylene gas to nitrogen gas. The mixture ratios used were 1:9,3:7, 5:5,7:3, and 9:1. Lap shear tests and T-pecl tests were performed using surface-treated alumiunm/CFRP composites and regular alumiunm/CFRP composites. The results showed that the contact angle was minimized and the T-peel strength was maximized for the mixture ratio of 5:5. The results also showed that the shear strength of surface-treated alumiunm/CFRP composites was 34% greater than that of regular alumiunm/CFRP composites. The T-peel strength of surface-treated alumiunm/CFRP composites was also 5 times greater than that of regular alumiunm/CFRP composites.