Effective Control of Laser‐Induced Carbonization Using Low‐Density Polyethylene/Polystyrene Multilayered Structure via Nanolayer Coextrusion

Front Cover: Controlled carbonization is very critical in improving the effect of laser-induced patterns on a polymer surface. In article number 1800726 by Chunlin Liu, Hongting Pu, and co-workers, an efficient and flexible method to produce high definition and high contrast laser patterned polymers is developed through the multilayered structure via nanolayer coextrusion. The effects of a multilayered structure on the laser responsive properties are studied, and a mechanism for controlling the carbonized area of a multilayered film is proposed. Note that the pattern “loong” (Chinese mascot) is marked on the laser response layers by laser treatment. This work opens up a valuable and viable direction for the practical application of these multilayered polymer materials.