• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Underwater superoleophobic polyurethane-coated mesh with excellent stability for oil/water separation
【24h】

Underwater superoleophobic polyurethane-coated mesh with excellent stability for oil/water separation

机译：水下超疏油聚氨酯涂层筛网，具有出色的油/水分离稳定性

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Oil/water separation has been a challenge in chemical engineering for various applications. There are numbers of studies on using coated metal meshes as a filter for oil/water separation. However, water resistance, chemical (such as: acid, base, and fouling) resistance and heat resistance for coating materials need further exploration, especially in terms of the durability of the coating materials. In this study, we synthesized a new coating material, hydrophilic polycarbonate polyurethane (HPCPU). We used HPCPU to chemically modify a steel mesh, and the mesh exhibits superhydrophilic and underwater superoleophobic properties. The HPCPU coated mesh shows excellent capacity for oil/water separation with a separation efficiency higher than 99.99% even after 40 cycles of separation. The coating material also exhibits excellent properties of water resistance, heat resistance, and chemical resistance. Moreover, the HPCPU-coated mesh exhibits a strong durability. For example, the separation efficiency for various oil/water mixtures remains higher than 99.7% after the HPCPU-coated mesh has been soaked in water for 30 days, hot water for 5 days, oils for 5 days, 0.5?M HCl solution, 0.5 M NaOH solution and 0.5 M NaCl solution for 24 hours.
机译：油水分离一直是化学工程在各种应用中的挑战。关于使用涂层金属网作为油/水分离过滤器的研究很多。但是，涂料的耐水性，化学（例如，酸，碱和污垢）和耐热性需要进一步研究，特别是在涂料的耐久性方面。在这项研究中，我们合成了一种新型涂料，亲水性聚碳酸酯聚氨酯（HPCPU）。我们使用HPCPU对钢网进行化学改性，并且该网具有超亲水性和水下超疏油性。带有HPCPU涂层的筛网具有出色的油/水分离能力，即使经过40次分离，其分离效率仍高于99.99％。该涂料还显示出优异的耐水性，耐热性和耐化学性。而且，涂有HPCPU的网格具有很强的耐久性。例如，将涂有HPCPU的筛网在水中浸泡30天，在热水中浸泡5天，在油中浸泡5天，0.5？M HCl溶液，0.5浸泡后，各种油/水混合物的分离效率仍高于99.7％。 M NaOH溶液和0.5 M NaCl溶液24小时。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号