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      https://www.ias.ac.in/article/fulltext/boms/045/0177

    • Keywords

       

      Foam; laser irradiation; polypropylene; carbon nanotubes; carbonization.

    • Abstract

       

      In recent years, foam materials have attracted people’s attention in many fields. This study reveals the onestep preparation of polypropylene (PP) foam material with very low carbon nanotubes (CNTs) content via laser irradiation technology. A low-energy near-infrared (1064 nm) laser beam is used to scan the laser-sensitive PP/CNTs composite prepared in the air. The controllable instantaneous thermal energy generated by laser irradiation decomposes CNTs and PP, and forms a foaming layer in situ on the surface of the composite material. CNTs content, laser power and laser scanning rate are key parameters for controlling laser-induced foaming. The results show that the rich carbonized structure induced by the laser envelops the gas generated by thermal degradation to form a porous structure, and form a 3D white pattern with the naked eye. This study can provide a positive reference for directly writing 3D foamed structures on the surface of composite materials on a large scale through a simple and efficient one-step laser irradiation method.

    • Author Affiliations

       

      ZHIJUN ZHANG1 ZHIXIANG XIE2 ZHONG HU3 4 JUNFENG CHENG1 3

      1. Changzhou University Huaide College, Jingjiang 214500, China
      2. School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
      3. Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
      4. CNOOC Changzhou Paint and Coatings Industry Research Institute Co. Ltd, Changzhou 213164, China
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