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Peer-reviewedCC BYPolymers

Enhanced Interfacial Adhesion and Dynamic Seawater Durability of Basalt Fiber/Epoxy Composites via PDA-Assisted In Situ Growth of UiO-66-NH2

  • Yingquan Zhou1
  • Guoqian Xie1
  • Bin Wang1,2
  • Chunxia Zhao1,2
  • Hui Li1,2
  • Dong Xiang1,2
  1. 1School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
  2. 2Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application, Southwest Petroleum University, Chengdu 610500, China
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Abstract

Durable basalt fiber-reinforced polymer (BFRP) composites are needed for marine and offshore structures, where seawater exposure and hydrodynamic shear progressively degrade the fiber–matrix interface. To address this challenge, a hierarchical polydopamine (PDA)/UiO-66-NH2 interphase was constructed on basalt fibers through PDA-assisted in situ growth. PDA served as an adhesive interlayer and nucleation platform, enabling dense anchoring of UiO-66-NH2 crystals. Compared with that of unmodified fibers, the optimized interface increased single-fiber tensile strength by 23.9% and interfacial shear strength by 67.9%. At the laminate level, flexural strength and interlaminar shear strength increased by 43.5% and 44.6%, respectively, accompanied by a transition from interfacial debonding to predominantly resin cohesive failure. Under dynamic simulated-seawater exposure, the modified composites showed lower mass change and improved mechanical property retention. The enhanced performance is attributed to improved interfacial interactions, micro-/nanoscale mechanical interlocking, and delayed ingress of corrosive species. This work provides an interface engineering strategy for mechanically robust and seawater-durable BFRP composites.

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Cite

BibTeXRIS
BibTeX
@article{zhou2026enhanced,
  title = {{Enhanced Interfacial Adhesion and Dynamic Seawater Durability of Basalt Fiber/Epoxy Composites via PDA-Assisted In Situ Growth of UiO-66-NH2}},
  author = {Yingquan Zhou and Guoqian Xie and Bin Wang and Chunxia Zhao and Hui Li and Dong Xiang},
  journal = {Polymers},
  year = {2026},
  month = oct,
  doi = {10.3390/polym18192425},
  url = {https://europepmc.org/article/PMC/PMC13667093},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Enhanced Interfacial Adhesion and Dynamic Seawater Durability of Basalt Fiber/Epoxy Composites via PDA-Assisted In Situ Growth of UiO-66-NH2
AU  - Yingquan Zhou
AU  - Guoqian Xie
AU  - Bin Wang
AU  - Chunxia Zhao
AU  - Hui Li
AU  - Dong Xiang
PY  - 2026
DA  - 2026/10/01
JO  - Polymers
DO  - 10.3390/polym18192425
UR  - https://europepmc.org/article/PMC/PMC13667093
AB  - Durable basalt fiber-reinforced polymer (BFRP) composites are needed for marine and offshore structures, where seawater exposure and hydrodynamic shear progressively degrade the fiber–matrix interface. To address this challenge, a hierarchical polydopamine (PDA)/UiO-66-NH2 interphase was constructed on basalt fibers through PDA-assisted in situ growth. PDA served as an adhesive interlayer and nucleation platform, enabling dense anchoring of UiO-66-NH2 crystals. Compared with that of unmodified fibers, the optimized interface increased single-fiber tensile strength by 23.9% and interfacial shear strength by 67.9%. At the laminate level, flexural strength and interlaminar shear strength increased by 43.5% and 44.6%, respectively, accompanied by a transition from interfacial debonding to predominantly resin cohesive failure. Under dynamic simulated-seawater exposure, the modified composites showed lower mass change and improved mechanical property retention. The enhanced performance is attributed to improved interfacial interactions, micro-/nanoscale mechanical interlocking, and delayed ingress of corrosive species. This work provides an interface engineering strategy for mechanically robust and seawater-durable BFRP composites.
SN  - 2073-4360
ER  -