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Upgrading Polyolefin Plastic Waste into Multifunctional Porous Graphene using Silicone-Assisted Direct Laser Writing.
Qu, Menglong; Guo, Yani; Cai, Yahan; Nie, Zhengwei; Zhang, Cheng.
Afiliação
  • Qu M; College of Engineering, Nanjing Agricultural University, Nanjing, 210031, China.
  • Guo Y; School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, 211816, China.
  • Cai Y; Sinopec Nanjing Engineering & Construction Incorporation, Nanjing, 210049, China.
  • Nie Z; College of Engineering, Nanjing Agricultural University, Nanjing, 210031, China.
  • Zhang C; School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, 211816, China.
Small ; 20(38): e2310273, 2024 Sep.
Article em En | MEDLINE | ID: mdl-38794868
ABSTRACT
The widespread use of plastics, especially polyolefin including polyethylene and polypropylene, has led to severe environmental crises. Chemical recycling, a promising solution for extracting value from plastic waste, however, is underutilized due to its complexity. Here, a simple approach, silicone-assisted direct laser writing (SA-DLW) is developed, to upgrade polyolefin plastic waste into multifunctional porous graphene, called laser-induced graphene (LIG). This method involves infiltrating polyolefins with silicone, which retards ablation during the DLW process and supplies additional carbon atoms, as confirmed by experimental and molecular dynamic results. A remarkable conversion yield of 38.3% is achieved. The upgraded LIG exhibited a porous structure and high conductivity, which is utilized for the fabrication of diverse energy and electronic devices with commendable performance. Furthermore, the SA-DLW technique is versatile for upgrading plastic waste in various types and forms. Upgrading plastic waste in the form of fabric has significantly simplified pre-treatment. Finally, a wearable flex sensor is fabricated on the non-woven fabric of a discarded medical mask, which is applied for gesture monitoring. This work offers a simple but effective solution to upgrade plastic waste into valuable products, contributing to the mitigation of environmental challenges posed by plastic pollution.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Small Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Small Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China