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投稿时间：2008-11-19
投稿时间：2008-11-19
中文摘要: 以新鲜荷叶为原始模板制备聚二甲基硅氧烷（PDMS）软模板，并用该软模板在真空下热压得低密度聚乙烯（LDPE），冷却剥离得到LDPE超疏水薄膜。场发射扫描电镜（FE SEM）显示其表面由细长乳突（长约30 μm）构成，接触角为154°±3.5°，水滴极易滚落，而常压下热压得到的薄膜表面乳突则短而粗（长约8～10 μm），接触角仅137°±2.7°。短粗的乳突高度接近模板微坑的深度，证明细长乳突是在微模塑脱模时拉伸形成的。
Abstract:PDMS templates were prepared by replica molding against fresh lotus leaves. Then low density polyethylene (LDPE) was melted and pressed onto the featured surface of the PDMS template in a vacuum oven. After cooling to room temperature and being peeled off from the templates, polyethylene films with superhydrophobic surface were created. FE SEM imaging shows that the superhydrophobic surface is consist of slim and high micro-papillas (about 30 μm). The contact angle is 154°±3.5° and the water drops can easily skip down. While surface of LDPE films micromolded in general oven possess much lower papillas (8-10 μm) and the contact angle is 137°±2.7°. The height of lower papillas approaches the depth of microholes on PDMS templates demonstrating the higher papillas have been stretched longer from the holes of the template during separating operation.
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基金项目:浙江省自然科学基金（Y407256）；浙江省"钱江人才"计划（2007R10005）
| 作者 | 单位 | |
| 黄明达 | 拉伸微模塑制备低密度聚乙烯超疏水表面 | uypy@163.com |
| 钱欣 | 拉伸微模塑制备低密度聚乙烯超疏水表面 | |
| 冯杰 | 拉伸微模塑制备低密度聚乙烯超疏水表面 | fengjie@zjut.edu.cn |
| Author Name | Affiliation | |
| uypy@163.com | ||
| fengjie@zjut.edu.cn |
引用本文：
黄明达,钱欣,冯杰.拉伸微模塑制备低密度聚乙烯超疏水表面[J].功能高分子学报,2009,(2):188-192.
.Fabrication of LDPE Superhydrophobic Surface by Stretching Controlled Micromolding[J].Journal of Functional Polymers,2009,(2):188-192.
黄明达,钱欣,冯杰.拉伸微模塑制备低密度聚乙烯超疏水表面[J].功能高分子学报,2009,(2):188-192.
.Fabrication of LDPE Superhydrophobic Surface by Stretching Controlled Micromolding[J].Journal of Functional Polymers,2009,(2):188-192.
