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Related Concept Videos

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Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
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  1. Home
  3. Research Domains
  5. Engineering
  7. Materials Engineering
  9. Wearable Materials
  11. A Wear-resistant Coating With Combined Mechanical And Antifouling Properties For Potential Underwater Cleaning Applications.
  1. Home
  3. Research Domains
  5. Engineering
  7. Materials Engineering
  9. Wearable Materials
  11. A Wear-resistant Coating With Combined Mechanical And Antifouling Properties For Potential Underwater Cleaning Applications.

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A wear-resistant coating with combined mechanical and antifouling properties for potential underwater cleaning applications.

Xiping Chen1, Leika Du2, Jiawang Chen3

  • 1Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, China.

Frontiers in Chemistry
|October 2, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

This study developed a novel silicone antifouling coating using a multifunctional anchoring material (A), molybdenum disulfide (MoS2), and polytetrafluoroethylene (PTFE). The enhanced coating shows improved durability and antifouling performance for marine applications.

Keywords:
A/MoS2/PTFEantifoulinglow-surface-energysilicone

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Marine Engineering

Background:

  • Silicone-based antifouling coatings offer environmental benefits but struggle with balancing mechanical strength and antifouling effectiveness.
  • Widespread application of these coatings is limited by poor durability and wear resistance.

Purpose of the Study:

  • To develop a novel multifunctional anchoring material (A) for enhancing silicone antifouling coatings.
  • To create a synergistic composite coating using material A, molybdenum disulfide (MoS2), and polytetrafluoroethylene (PTFE).
  • To evaluate the mechanical, antifouling, and self-cleaning properties of the developed composite coating.

Main Methods:

  • Synthesized N,N'-bis(12-hydroxystearoyl)-1,3-phenylenediamine (A) via condensation reaction.
underwater cleaning
  • Modified silicone antifouling coatings with A, MoS2, and PTFE, followed by room-temperature crosslinking.
  • Characterized coating properties including surface roughness, water contact angle, tensile strength, elastic modulus, and underwater friction.

    • Main Results:

    • Incorporation of 1% A significantly reduced surface roughness (33%), increased water contact angle (118.2° to 122.7°), and improved tensile strength (85%).
    • The composite coating exhibited enhanced durability (Sa < 2.65 μm after 2000 abrasion cycles), high self-cleaning efficiency (>97.1%), and antibacterial rates (>94.5%).
    • Marine field tests demonstrated effective antifouling performance for over 90 days.

    Conclusions:

    • The synergistic combination of A, MoS2, and PTFE overcomes the limitations of traditional low-surface-energy coatings.
    • This breakthrough enables the design of high-performance, durable antifouling coatings.
    • The developed coating shows significant potential for practical applications, especially in underwater cleaning robotics.