• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil-Water Separation
【24h】

Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil-Water Separation

机译：聚二甲基硅氧烷刷装饰的不易燃和磁性海绵，可实现多任务处理和高效油水分离

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Developing sponge materials integrating excellent flame retardancy, multitasking separation performance, and efficient emulsion-breaking ability is significant but challenging for the remediation of oil spills causing fires and environmental damages. Herein, a superhydrophobic oil-water separation sponge material, containing a melamine-formaldehyde (MF) sponge substrate, magnetic polydopamine (PDA) coating, and branched polydimethylsiloxane (PDMS) brush, through dopamine-mediated surface initiated atom transfer radical polymerization (SI-ATRP) is fabricated. The synergistic flame resistance of the MF substrate and PDMS brush significantly improves its adaptability in fire. More importantly, the decorated PDMS brushes can effectively overcome the size mismatch between sponge macropores and tiny emulsified droplets, while remaining the intrinsic macroporous characteristic. When treating W/O emulsions, the PDMS brushes stretch up to act as "interface-breaking blades" to accelerate the coalescence of emulsified water droplets. Meanwhile, such PDMS brushes can serve as "oil-trapping tentacles" to efficiently capture oil droplets when treating O/W emulsions. Such material design synergistically contributes to satisfactory separation efficiency (98.7%) and ultrahigh permeation flux (up to 1.35 x 10(5) L m(-2) h(-1)), even for treating high viscosity emulsions. Besides, the reported sponge also inherits robust durability, superior recyclability, and convenient magnetic collection. These features make the sponge promising for multitasking and highly efficient oil-water separation.
机译：开发具有优异阻燃性，多任务分离性能和有效破乳能力的海绵材料非常重要，但对于补救会引起火灾和环境破坏的溢油的补救措施却具有挑战性。本文中，一种超疏水性油水分离海绵材料，通过多巴胺介导的表面引发的原子转移自由基聚合（SI-），包含三聚氰胺-甲醛（MF）海绵基材，磁性聚多巴胺（PDA）涂层和支化聚二甲基硅氧烷（PDMS）刷。 ATRP）。 MF基材和PDMS刷子的协同阻燃性显着提高了其在火中的适应性。更重要的是，装饰的PDMS刷子可以有效克服海绵大孔和微小乳化液滴之间的尺寸失配，同时保持固有的大孔特性。在处理W / O乳液时，PDMS刷会向上拉伸以充当“破坏界面的刀片”，以加速乳化水滴的聚结。同时，这种PDMS刷可以用作“捕油触角”，以在处理O / W乳液时有效地捕获油滴。这种材料设计协同作用，即使用于处理高粘度乳液，也可达到令人满意的分离效率（98.7％）和超高渗透通量（高达1.35 x 10（5）L m（-2）h（-1））。此外，报道的海绵还继承了坚固的耐用性，出色的可回收性和方便的磁性收集功能。这些特性使海绵有望用于多任务处理和高效的油水分离。

著录项

  • 来源
    《Advanced Functional Materials》 |2019年第29期|1902488.1-1902488.12|共12页
  • 作者

    Liu Yingying; Wang Xin; Feng Shengyu;

  • 作者单位

    Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Shandong, Peoples R China|Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Shandong, Peoples R China;

    Qilu Univ Technol, Shandong Acad Sci, Sch Light Ind & Engn, Jinan 250353, Shandong, Peoples R China;

    Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Shandong, Peoples R China|Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Shandong, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    flame resistance; oil-water separation; polydimethylsiloxane brush; SI-ATRP; superhydrophobic sponge;

    机译：阻燃性;油水分离;聚二甲基硅氧烷刷;SI-ATRP;超疏水海绵;

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