Recent research conducted by a team from the Zhejiang Marine Development Research Institute and the Institute of Marine Equipment of Shanghai Jiao Tong University has unveiled promising advancements in the performance of epoxy linking paints, particularly in their compatibility with low surface energy antifouling coatings. This study, published in ‘Cailiao Baohu’ (Materials Protection), addresses a significant challenge in the marine construction sector: the poor adhesion between conventional anticorrosive primers and antifouling coatings, which can compromise the durability of marine structures.
The researchers, led by PAN Xuelong, have developed a siloxane-modified polyether amine curing agent that enhances the performance of specialized linking paints. “Our findings indicate that this modified curing agent not only improves the self-leveling properties of the paint but also significantly increases its compatibility with antifouling coatings,” said PAN Xuelong, highlighting the practical implications of their work for marine applications.
Through rigorous testing, the team determined that a 6% mass fraction of the siloxane-modified agent achieved optimal adhesion strength of approximately 2.1 MPa with the antifouling topcoat. This is a notable improvement over traditional formulations, suggesting that marine structures can benefit from longer-lasting protective coatings. The research also demonstrated that the modified paint outperformed conventional epoxy linking paints in shallow seawater immersion tests, showcasing its potential for extended service life in harsh marine environments.
The implications for the construction sector are substantial. Enhanced adhesion and compatibility between paint systems mean that marine structures, such as ships and offshore platforms, can better withstand the corrosive effects of seawater and biofouling. This could lead to reduced maintenance costs and longer intervals between re-coating, ultimately improving the economic viability of marine projects.
As the construction industry increasingly seeks sustainable and cost-effective solutions, innovations like those presented in this study could reshape the future of marine coatings. “By addressing compatibility issues, we are paving the way for more resilient and efficient anticorrosive systems,” added PAN Xuelong, emphasizing the broader impact of the research.
For those interested in exploring the full findings, the study is accessible through the Zhejiang Marine Development Research Institute’s website at lead_author_affiliation. The advancements highlighted in this research not only promise to enhance the performance of marine coatings but also signify a significant step toward more sustainable practices in the construction sector.
