Novel acrylic pressure-sensitive adhesive (PSA) containing silver particles

Abstract

Acrylic pressure-sensitive adhesives (PSAs) are generally considered as nonelectrically conductive materials. The electrical conductivity is incorporated into acrylic polymer after blending with electrical conductive additives like silver particles. After the addition of electrically conductive silver filler, the main and typical properties of PSAs such as tack, peel adhesion, and shear strength will decline. This study is the first trial which reveals that the acrylic self-adhesive basis must be synthesized with ameliorated initial performances like high tack and excellent adhesion. Currently, the electrically conductive solvent-borne acrylic PSA containing silver fillers are not commercially available on the market. They are promising materials which can be applied for the manufacturing of diverse technical or medical high performance self-adhesive products, such as broadest line of special electrically conductive sensitive tapes.

Keywords:

• acrylic PSA
• silver particle
• conductivity
• tack
• peel adhesion

Acknowledgments

This work was supported by National Natural Science Foundation of China (21177032), Natural Scientific Research Innovation Foundation in Harbin Institute of Technology (HIT.NSRIF.2009122), Fundamental Research Funds for the Central Universities (HIT.ICRST.2010011), and State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology) (No. 2011TS05). Special thanks for the project supported by Program for New Century Excellent Talents in University (NCET-11-0805).