초록 |
The acrylic copolymers, which were used as base polymers for pressure sensitive adhesives, were synthesized by solution polymerization of 2-ethylhexyl acrylate, ethyl acrylate, and acrylic acid with 2,2’-azobisisobutyronitrile as an initiator. The acrylic copolymer adhesive foams were prepared with various different contents of chemical blowing agent (0.5, 1.0, and 2.0 phr). The chemical blowing by thermal treatment in the acrylic copolymer matrices was crucial in controlling the anti-shock properties of thin silicon wafer. The effect of foaming on the curing behavior and the adhesion properties of acrylic copolymer adhesives were also studied. |