Conductive Inks using Modified PVB with Improved Dispersibility and Adhesion
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초록
내용
Conductive carbon black ink was prepared using Modify PVB. PVB has strong adhesion to organic and inorganic materials and has transparent physical properties. In particular, the acetal structure can easily interact with the end group oxygen of the carbon black, thus showing good adhesion. However, PVB has good adhesion but the cohesion of carbon black, a nano material, is very strong and cannot prevent aggregation. This causes PVB materials to agglomerate with each other during dispersion, resulting in a poor conductivity. In this study, PVB was modified with various types of Ring opening materials to prevent such aggregation. Modify PVB has a -COOH group at the end of the side chain. Carboxylic acid groups prevented cohesion between Modify PVBs due to repulsion due to negative charges and showed shifts in finally and zeta potentials.