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FRP materials can be deeply applied in marine anti-corrosion engineering

recently, it was learned from the China Industrial anti corrosion Technology Association that in the "12th Five Year Plan" of the marine industry, China's relevant departments will further deepen the research, development and expansion of the corrosion control technology of marine engineering structures, and new anti-corrosion technology and new composite materials will become the safety guards of the main raw materials and structures of marine engineering

according to the survey data of China Industrial Corrosion Protection Technology Association, due to the harsh corrosion conditions in the marine environment, the corrosion of hydraulic and port engineering projects in some parts of China is relatively serious. For example, 18 coastal wharves and approach bridges in South China have been used for 7-25 years, accounting for 89% of the corrosion damage; Corrosion damage accounts for 56% of the 22 concrete sluice gates with a service life of 7 ~ 15 years in China; Corrosion damage accounted for 87% of 61 concrete sluice gates with a service life of 23 years

Zhao Honghan, Deputy Secretary General of China Unsaturated Polyester Resin Industry Association, said that FRP materials, as light-weight, high-strength and corrosion-resistant materials, have entered marine anti-corrosion projects as early as decades ago, such as epoxy vinyl resin based FRP anti-corrosion lining plastic film, composite materials, tank tubes, grids, splash zone FRP (glass fiber reinforced plastic, i.e. FRP) coating cathodic protection, pulling and wrapping FRP bars, etc., have already entered the port yard, Offshore platforms and a series of marine anti-corrosion projects. However, according to the current requirements of national offshore engineering construction, the overall entry of domestic FRP marine anti-corrosion materials into the project is far from enough. Zhao Hong generally adopts the method of improving the heat treatment process to improve the yield strength of the alloy. Han believes that FRP enterprises close to the Pearl River Delta, Yangtze River Delta and the urban agglomeration around the Bohai Bay along the coast of China should actively seize the opportunity that the green environmental protection of large raw materials for marine anti-corrosion engineering has become the target development of many plastic raw material suppliers, strive to inquire about the classic cases and standards in the European and American markets, and actively strengthen cooperation with relevant scientific research institutions, Promote the in-depth application of corrosion-resistant FRP materials and products in China

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