摘要： 采用羟基丙烯酸树脂作为基料树脂，聚四氟乙烯微粉为微米填料，纳米二氧化硅为纳米填料，制备了多种具备微米级与微纳复合微观结构的风电叶片涂料，重点讨论了不同聚四氟乙烯微粉与纳米二氧化硅含量下，涂层表面微观结构对涂料防覆冰性能的影响。结果表明：聚四氟乙烯微粉含量为 40%、纳米二氧化硅含量为 10%时，涂层表面呈现较为明显的微纳复合结构，滚动角与着冰力最低，同时，该涂料的其他关键性能满足风电行业相关技术规范要求；随着纳米二氧化硅含量的进一步增加，纳米二氧化硅在聚四氟乙烯微粉形成的空隙处进行堆积叠加，改变了微纳复合结构的尺寸与形貌，虽然水接触角不断增大，但滚动角与着冰力也随之增大且增大幅度较为明显，防覆冰性能呈现大幅下降的趋势。
关键词:
防覆冰,
涂料,
微观结构,
风电
Abstract:
A variety of wind power blade coatings with micrometer and micro-nano composite microstructure were prepared by using hydroxyl acrylic resin as the base resin，polytetrafluoroethylene micropowder as micro filler，and nano-silica as nano-filler. The effect of coating surface microstructure on the anti-icing performance of the coatings with different contents of polytetrafluoroethylene micropowder and nano-silica was mainly discussed. The results showed that when the content of polytetrafluoroethylene micro powder and nano silica was 40% and 10% respectively，the coating surface exhibited more obvious micro-nano composite structure with the lowest rolling angle and icing force. At the same time，other keyproperties of the coating met the requirements of relevant technical specifications in the windpower industry. With the further increase of nano silica content，nano silica accumulated and stacked at the voids formed by polytetrafluoroethylene micro powder，which changed the sizeand morphology of the micro-nano composite structure. Although the contact angle continuedto increase，the rolling angle and icing force also increased significantly，and the anti-icing performance showed a significant downward trend.
Key words:
anti-icing,
coatings,
microstructure,
wind power
中图分类号:
陆文明, 周如东, 唐雪涛, 等. 涂层表面微观结构对风电叶片涂料防覆冰性能影响研究#br#[J]. 涂料工业, 2024, 54(增刊1): 68-74.
LU W M, ZHOU R D, TANG X T, et al. Effect of Coating Surface Microstructure on Anti-icing Properties of Wind Power Blade Coatings#br#[J]. Paint & Coatings Industry, 2024, 54(增刊1): 68-74.