Original Article
  • Enhancing Mechanical and Electrical Performance through Polymer Blending: A Study on PVA-PDDA Blended Films for Triboelectric Energy Harvesting
  • Nebiyou Tadesse Debele*, Alemtsehay Tesfay Reda*, Yong Tae Park*†

  • * Department of Mechanical Engineering, Myongji University, Yongin 17058, Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study explores the impact of polymer blending on the mechanical properties and triboelectric energy harvesting capability of composite polymers. A multifunctional free-standing polymer blend composed of poly(vinyl alcohol) (PVA) and poly(diallyldimethylammonium chloride) (PDDA) was fabricated using a polymer casting method. Stress-strain analysis of the polymer blend revealed an enhanced stretchability of 308.4% with excellent transparency. Furthermore, triboelectric analysis revealed dynamic energy harvesting capabilities with impressive electrical voltage and current output of 50 V and 5 μA. These results represent a significant improvement compared to individual PVA and PDDA polymers and highlight the potential of polymer blending to enhance both mechanical and electrical properties for energy harvesting applications

Keywords: Polymer, Composite, Triboelectric nanogenerator, Energy harvesting

This Article

Correspondence to

  • Yong Tae Park
  • Department of Mechanical Engineering, Myongji University, Yongin 17058, Korea

  • E-mail: ytpark@mju.ac.kr