【摘 要】
：
An easy-to-implement method by which to fabricate superhydrophobic surfaces inspired taro leaf was successfully applied on 316L stainless steel via combining nanosecond laser (NL) processing and spin-coating techniques.The laser-textured surface composed
【机 构】
：
School of Mechanical & Automotive Engineering,South China University of Technology,Guangzhou 510641,
论文部分内容阅读
An easy-to-implement method by which to fabricate superhydrophobic surfaces inspired taro leaf was successfully applied on 316L stainless steel via combining nanosecond laser (NL) processing and spin-coating techniques.The laser-textured surface composed ofmicroscale frameworks and central bumps was fabricated by NL processing based on properly designed biomimetic patterns,and a layer of nanoscale carbon black/polydimethylsiloxane (CB/PDMS) particles was covered on it by spin-coating.The effect of pattem parameters (i.e.,the inscribed circle radius of framework and the radius of central bump) on wettability of biomimetic surface was investigated.All as-prepared biomimetic surfaces with micro-nano hierarchical structures showed excellent superhydrophobicity with the water contact angle of～155° and contact angle hysteresis of～2°.By comparing the untreated surface,the wetting behavior and evaporation mode of the biomimetic surface occurred an obvious transformation.Meanwhile,experiments indicated that the biomimetic surface not only had liquid-repelling and self-cleaning functions,but also maintained remarkable mechanical robustness and superhydrophobic durability.The method is efficient for fabricating bio-mimetic superhydrophobic surfaces applied to liquid-repelling,evaporation-transforming and self-cleaning fields.
其他文献
Lead-bismuth eutectics(LBE)have considerable potential as a candidate material for accelerator-driven sub-critical systems(ADS).However,LBE corrosion and irradiation damage are two urgent challenges remaining to be solved for impellers of primary pumps.In
案例一创新审批方式,助力北京企业在滨海新区落地生根rn天津滨海新区出台“见证发证”审批方式,通过内容互认、资质互认,进一步减少审批材料,大幅压缩审批时限,最大限度提升企业办事便利度,助力北京企业在滨海新区落地生根.rn一、实施历程rn2020年8月,滨海新区政务服务办印发《滨海新区承接北京非首都功能企业审批管理暂行办法》及《滨海新区适用“见证发证”审批方式行政许可事项清单》,对于北京迁入滨海新区的企业、研究所等机构以及北京公司在滨海新区设立的全资子公司,在符合适用“见证发证”审批方式的前提条件下,审批机关
京津冀协同发展是习近平总书记亲自谋划、亲自部署、亲自推动的重大国家战略.当前,京津冀地区经济发展不均衡,能源供应严重依赖化石能源,生态环境保护形势依然严峻,实现京津冀能源高质量发展意义重大,重点是推进能源与经济、环境的协同发展.未来,京津冀地区应从能源消费、供给、科技和体制机制入手,完整、准确、全面贯彻新发展理念,实现新形势下能源高质量发展.
推动长三角一体化发展是习近平总书记和党中央着眼于实现“两个一百年”奋斗目标,推进新时代改革开放形成新发展格局作出的重大战略决策.今年是长三角一体化发展上升为国家战略3周年.3年来,在推动长三角一体化发展领导小组的直接领导下,上海市积极发挥龙头带动作用,携手苏浙皖各扬所长、协同发力,紧扣“一体化”和“高质量”两个关键,坚持高位部署、高位推动,不断推动长三角一体化发展各项工作全面提速、各项任务全面提质、各方主体全面参与,不断取得新成效.
Triple-modular redundancy(TMR),a well-known methodology for improving the reliability of computer systems,has been used for onboard control computers in many safety-critical space applications.In this paper,a lightweight data-voting strategy for TMR contr
Chemical dissolution-front instability (CDFI) problems usually involve multiple temporal and spatial scales,as well as multiple processes.A key issue associated with solving a CDFI problem in a fluid-saturated rock is to mathematically establish a theoret
In this study,fish behavior and fish injury at different operating conditions are investigated via numerical simulation to evaluate the fish-friendliness of an axial pump that comprises an inlet pipe,a rotor with six blades,a stator with eight vanes,and a
Autonomous planning is a significant development direction of the space manipulator,and learning from demonstrations (LfD)is a potential strategy for complex tasks in the field.However,separating control from planning may cause large torque fluctuations a
The probe-and-drogue aerial refueling (PDR) task is seriously disturbed by the wind field,so it is difficult to obtain accurate visual information of the probe and drogue position.Additionally,the pilot needs to control the vertical,lateral and forward-ba
Permeability is a key parameter of rock reservoirs,suggesting the flow characteristics of rock reservoirs.Permeability prediction of carbonate reservoirs is still a great challenge due to its complex pore network and wide range permeability.This work is t