A graphene anticorrosion coating technology developed by the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences has been deployed at scale on the Xiangshan Port cross-sea bridge in east China's Zhejiang Province.
Stretching about 8.276 kilometers across Xiangshan Port, a bay of the East China Sea, it is a bridge on China's first cross-sea suburban railway. It opened to traffic on Sept. 22 and is currently the world's largest-span ballastless-track cable-stayed railway bridge.
Cross-sea bridges are exposed to high salinity, high humidity, and strong ultraviolet radiation. These harsh marine conditions pose serious challenges to the weather resistance, corrosion resistance, and service life of protective materials.
The graphene-modified heavy-duty anticorrosion coatings applied to the Xiangshan Port cross-sea bridge were developed by the Ningbo Zhongke-Yinyi New Material Co., Ltd., a company incubated by NIMTE, drawing on the institute's graphene anticorrosion coating technology. The coatings offer good barrier performance, strong adhesion, and high salt-spray resistance, helping mitigate corrosion of the bridge's main steel structures in the harsh marine environment. By doubling the service life of conventional anticorrosion coatings,the new coatings can substantially cut maintenance costs and safety risks, according to the developer.
The large-scale application is expected to enhance the safety and durability of cross-sea rail infrastructure. The coating technology also holds promise for wider use in marine engineering, high-end equipment, and aerospace, according to NIMTE.
感 谢 悦 读
编辑｜材华君
