The self-powered cathodic protection effect of flexible PDMS-based piezoelectric composites in a simulated pressure-alternating marine environment

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-11-15 DOI:10.1016/j.coco.2024.102166

Rui Liu , Yuxin Guan , Yu Cui , Fandi Meng , Fuhui Wang , Li Liu

引用次数: 0

Abstract

The development of a self-sufficient protection system is crucial for alloys in deep sea, due to the presence of water pressure, short of electricity, etc. This study underscores the composite with carbonized polydopamine-coated PZT in the polydimethylsiloxane base (cPDA-coated PZT/PDMS) as a self-powered protection solution for alloys in pressure-alternating marine environments. This composite can convert pressure into electrical energy, providing cathodic protection for Q235 in marine environments. The results demonstrate that the composite exhibits excellent electrical output properties. Under cyclic pressure, the composite could generate a current of 22.5 μA, reducing the potential of Q235 to −760 mV and effectively decreasing its corrosion rate, thus offering autonomous cathodic protection.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.