Study into the Application of Single-Wall Carbon Nanotubes in Isotropic Conductive Adhesives
Isotropic conductive adhesives (ICAs) with stable contact resistance and high thermal conductivity are highly desirable. In this paper, a new ICA filled with silver fillers and singlewall carbon nanotubes (SCNTs) was developed. SCNTs were acidified in a mixture of 98% H2SO4 and 68% HNO3 with a volume rate of 3:1 at 50 0C for 3 h. Carboxyl and hydroxyl groups were produced on SCNTs, and the purity of SCNTs also greatly improved. To prepare the ICAs, acidified SCNTs were firstly ultrasonically dispersed in acetone, then added into the matrix resin, and finally mixed with silver fillers. The bulk resistivity of the fabricated ICAs filled with silver fillers and acidified SCNTs was larger, their lap shear strength lower, their contact resistance stability improved, and their moisture absorption remained almost unchanged. In the curing process, the released heat was greatly reduced and transferred to the surroundings for good thermal conductivity of SCNTs, but the curing temperature was not affected. Therefore, acidified SCNTs can be used in ICAs, and in general, will create a good effect on ICAs.
Dongsheng Li Huiwang Cui Qiong Fan Yajun Duan Zhichao Yuan Lilei Ye Johan Liu
Key Laboratory of Advanced Display and System Applications, Ministry of Education and SMIT Center, S Key Laboratory of Advanced Display and System Applications, Ministry of Education and SMIT Center, S Key Laboratory of Advanced Display and System Applications, Ministry of Education and SMIT Center, S SHT Smart High Tech AB, Fysikgrand 3, 41296 Gothenburg, SWEDEN Key Laboratory of Advanced Display and System Applications, Ministry of Education and SMIT Center, S
国际会议
上海
英文
430-435
2011-08-08（万方平台首次上网日期，不代表论文的发表时间）