Silicone modified water-based acrylic pressure sensitive adhesive

The weakness of ordinary water-based acrylate PSA is poor bonding strength and heat resistance, and it is difficult to firmly bond on low surface energy materials. The molecular structure of organosilicon contains Si-O-Si bond and side chain organic groups, and its molecular chain is highly curly, the intermolecular association is small and the intermolecular attraction is weak, so its surface tension is low and it has good hydrophobicity. Si-0-Si bond Angle can be changed in the range of 130°~160°, so organosilicon has high softness. Acrylate PSA(silicone propyl -PSA) modified by organosilicon has many advantages, such as low surface energy and bonding properties.

Water-based Si -PSA has good cohesion. With adhesive properties, heat resistance, and water resistance, its application prospects are very broad.