水下高压抗润湿V型槽分级铜纳米线簇超疏水表面的减阻研究  

Superhydrophobic surface of underwater high-pressure anti-wetting V-groove hierarchical Cu nanowire clusters for drag reduction

作　　者：张祺瑞 李启迅 阮达 刘渊博 马学虎[1] ZHANG Qirui;LI Qixun;RUAN Da;LIU Yuanbo;MA Xuehu(Liaoning Key Laboratory of Clean Utilization of Chemical Resources,Institute of Chemical Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]辽宁化学资源清洁利用重点实验室,大连理工大学化工学院化学工程研究所,辽宁大连116024

出　　处：《高校化学工程学报》2024年第4期558-565,共8页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金(51836002)。

摘　　要：针对水下减阻超疏水表面气层稳定性差的问题,提出了在金属铜基底上使用两步电化学沉积法,制备了一种具有V型槽结构、区室化簇状结构和微纳分级结构的铜纳米线超疏水表面,进行了水下高压气层稳定性测试和减阻测试。结果表明,该表面最高可在0.45 MPa水压下维持76%的未润湿区域。同时,该表面在平板流变仪层流减阻测试中可取得高达56%的减阻率,具有优异的减阻性能。V型槽分级铜纳米线簇超疏水表面兼具水下高压气层稳定性和减阻效果,可应用到实际船舶航行领域,为解决超疏水表面减阻应用的瓶颈问题提供方案。To address the problem of poor air-layer stability of underwater drag-reducing superhydrophobic surfaces,Cu nanowire superhydrophobic surface with V-groove structure,compartmentalized cluster structure,and micro-nano scale hierarchical structure on the Cu substrate was proposed using a two-step electrochemical deposition method.An underwater high-pressure air-layer stability test and a drag reduction test were conducted.The results show that the surface maintains up to 76%of unwetted area at 0.45 MPa water pressure.Meanwhile,the surface can achieve up to 56%drag reduction in laminar flow drag reduction experiments with flat plate rheometer,which shows excellent drag reduction performance.The V-groove hierarchical Cu nanowire cluster superhydrophobic surface can be applied in ship navigation fields with both underwater high-pressure air-layer stability and drag reduction effects,which provides a solution for drag reduction on superhydrophobic surfaces.

关 键 词：超疏水表面减阻 分级结构 气层稳定性 铜纳米线 

分 类 号：O647.9[理学—物理化学] TQ153.6[理学—化学]