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海上型風力發電系統涂裝體系研究

2021-04-23 15:52:08 作者：李全德來源：中國腐蝕與防護學報分享至：

摘要

通過附著力、中性鹽霧、耐磨性、紫外老化、循環腐蝕和戶外暴露實驗等研究了6種不同涂料體系的防護性能，分析了它們在海上型風力發電系統涂裝的可行性。結果表明：S03和S04兩種環氧富鋅聚氨酯涂層體系在循環腐蝕以及戶外掛片實驗后仍具有5 MPa以上的附著力；P04和P06兩種富鋅底漆銹蝕和起泡等級均為1級（S2），且銹蝕蔓延寬度不超過2.70 mm，具有較好的耐鹽霧腐蝕和抗腐蝕擴展性能；T01~T04和T06共5種聚氨酯面漆的耐磨性均大于1.0 L/μm，具有優良的耐磨性；紫外加速老化過程中，T01~T04這4種聚氨酯面漆失光率均未超過1級，具有較好的耐紫外老化和耐腐蝕性能。不同廠家同類型油漆在防護性能上仍存在較大差距，S04涂層體系具有較好的綜合防護性能，推薦用于海上風力發電系統的涂裝防腐。

關鍵詞：海上 ; 風力發電 ; 涂裝體系

Abstract

The feasibility of several coating systems for offshore wind power generation system was assessed through adhesion measurement, neutral salt spray, wear resistance test, ultraviolet aging test, cyclic corrosion test and outdoor exposure test. Experimental results indicated that after cyclic corrosion and outdoor exposure test, two types of epoxy zinc-rich polyurethane coating systems S03 and S04 maintained adhesive strength of above 5 MPa. After neutral salt spray test for 2000 h, the rust- and blister-degree for the two zinc-rich primers P04 and P06 could be raked as grade 1 （S2）， while the expand of the rust size is no more than 2.70 mm underneath the primer. Hence, the two primers have good resistance to salt spray and corrosion propagation. Five types of polyurethane coatings, including T01~T04 and T06, have excellent wear resistance of superior to 1.0 L/μm. The gloss reduction of four types of polyurethane coatings （T01~T04） did not exceed grade 1 during the course of uv-accelerated aging. However, there exists large variations in the protective performance for the same type of paint supplied by different manufacturers. It is concluded that the S04 coating system has better comprehensive protective performance, thus, which is suitable to the application in the sector of offshore wind power generation system.

Keywords： offshore ; wind power generation ; coating system