天冬聚脲基弹性体的制备及其防冰性能研究

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中图分类号：063 文献标志码：A

Preparation Aspartimide-Based Polyurea Elastomers Study Their Anti-Icing Properties

Abstract：Iceaccretion isacommon phenomenon in natural environments.However，severe iceaccretion significantly affects people'sdailylives poses major challenges acrossmultiple fields，including communicationsystems， wind power generation，shore operations，aerospace engineering， polar exploration.A polydimethylsiloxane （PDMS）-modified aspartimide-based polyurea elastomer （SPUE）wassynthesizedvia a two-step method using hydroxyl-terminated polydimethylsiloxane （HTPDMS），hexamethylene disocyanate （HDI）， polyaspartic ester （PAE）asrawmaterials. Molecular design strategies were employed to introduce flexible silicone hydrophobic segments rigid urea linkages， achievinga synergistic enhancement anti-icing performance mechanical performance.Theresultsdemonstrate that SPUE exhibits outsting anti-icing performance，with a water contact angle 133∘ ，awater rolling angle 19∘ ， an ice adhesion strength 47kPa . The material retains stable performance after 1 Ooo abrasion cycles 2 000h UV aging. Moreover，the materialshowsexcelentrainerosionresistance，highlighting itspotentialforapplications inwindturbine blade protection.

words： polyurea elastomer; coating; surface structure； anti-icing performance; stability

积冰是自然界的常见现象⑴，但严重的积冰会影响工业设备的正常运行以及使用寿命。（剩余11393字）