High-precision bio-replication of synthetic drag reduction shark skin
High-precision bio-replication of synthetic drag reduction shark skin
复制标题
DOI：
10.1007/s11434-010-4163-7
复制
发表时间：
2011-01
影响因子：
--
通讯作者：
Deyuan Zhang;Yuanyue Li;Xin Han;Xiang Li;Huawei Chen
中科院分区：
文献类型：
--
作者：
Deyuan Zhang;Yuanyue Li;Xin Han;Xiang Li;Huawei Chen
将纳米长链嫁接在鲨鱼皮肤的复制微槽上，通过合成生物复制高精度复制生物合成减阻结构。以经过前处理的鲨鱼皮为铸造模板，采用软模成型法制备了硅橡胶柔性凹模。然后用水性环氧树脂接枝长链减阻剂，制备出具有纳米长链减阻界面和逼真微沟槽的合成减阻鲨鱼皮。复制精度分析表明，该技术能够高精度地复制生物减阻表面复杂的三维形态。减阻实验表明，该材料具有良好的综合减阻效果，最大减阻率可达24.6%。
Nano-long chains were grafted over the replicated micro-grooves of shark skin in a novel attempt to replicate bio-synthetic drag reduction structure with high precision through synthetic bio-replication. Pre-treated shark skin was used as casting template to prepare a flexible female die of silicone rubber by soft die formation. A waterborne epoxy resin was then used to graft long-chains of drag reduction agent and prepare a synthetic drag reduction shark skin with nano-long chain drag reduction interface and lifelike micro-grooves. Replication precision analysis shows that this technology could replicate the complicated three-dimensional morphology of a biological drag reduction surface with high precision. Drag reduction experiments show that the material had an excellent synthetic drag reduction effect, with a maximal drag reduction rate of up to 24.6% over the velocities tested.