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3D打印的表面间塞乳液气凝.

Seyyed Alireza Hashemi1, Ahmadreza Ghaffarkhah1, Hadi Hosseini1

  • 1Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada.

ACS applied materials & interfaces
|August 21, 2024
PubMed
概括

研究人员开发了用于3D打印超轻质多孔结构的新型乳液凝. 这种技术提高了机械强度,并允许精确控制孔隙性和电磁屏蔽性能.

科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术
  • 化学工程是化学工程的重要组成部分.

背景情况:

  • 超轻型多孔结构的直接墨水写作 (DIW) 在保持机械强度方面面临挑战,特别是在低度的墨水中.
  • 创建具有所需性质的复杂几何形状需要具有可调整的风湿学特征的先进油墨配方.

研究的目的:

  • 为了解决3D打印轻质多孔材料的局限性.
  • 开发一种多功能乳液凝系统,用于高分辨率的直接墨水写作.
  • 为了在打印的气凝中实现可调节的机械性能和电磁屏蔽.

主要方法:

  • 采用了由石墨烯氧化物 (GO) 和纤维素纳米晶体 (CNC) 与油相联体之间的静电相互作用形成的间接塞乳液凝.
  • 用于阻塞后与NaHCO3进行离子交联,以提高DIW的油墨粘性弹性.
  • 操纵后化过程和度以控制孔隙性和材料特性.

主要成果:

  • 达到超低密度的气凝 (∼2.63 mg/cm3) 具有可调节的机械强度 (弹性模量为0.45 MPa).
  • 证明了对宏观到微观尺度的多孔性以及打印复杂几何形状的能力.
  • 调整后的电磁屏蔽效率从6791到19615 dB cm2/g.
关键词:
通过3D打印打印.气凝是一种气凝.电磁干扰屏蔽 电磁干扰屏蔽乳液凝是一种乳液凝.接口复杂化 接口复杂化

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结论:

  • 开发的乳液凝系统为3D打印先进的轻质多孔材料提供了一个多功能平台.
  • 该技术可以精确控制印刷气凝的结构,机械和电磁性质.
  • 这种方法对于需要具有特定功能的量身定制轻质材料的应用具有重大潜力.