Panasonic develops a stretchable resin film for electronics applications

Stretchable insulating resin film with electronic circuit (Panasonic Corporation)

The Panasonic Corporation, a leading consumer electronics provider based in Osaka, Japan, has presented a soft, flexible, and stretchable polymer resin film using its proprietary stretchable resin technology. The company will also provide a transparent electrode material and conductive paste along with this insulating film.

This newly developed material is an insulating film material that stretches and returns to its original shape, a feature that is hard to find in conventional flexible materials. It adapts to desired manners of folding and to varying free-form surfaces, substantially reducing existing design constraints. For example, it enables the construction of soft and stretchable electronic devices that are adaptable to a variety of forms, such as of clothing and the body. The newly developed material is deployable in a broad range of applications, from wearable devices to sensors, displays, and robots.

The stretchable resin film is reported to offer the following features developed on the basis of Panasonic’s proprietary stretchable resin technology:
-    Very high elasticity (tensile elongation: x 2.5 or more)
-    The insulating film material is capable of relaxing internal stresses arising from stretch, returning to its original shape, and withstanding repeated use (percentage of stress relaxation: 60%; recovery rate: 98% or more)
-    Additional development of a stretchable transparent electrode material and conductive paste along with the insulating material

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