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多尺度异质聚合物复合材料用于高刚度4D打印电控多功能结构.

Javier M Morales Ferrer1, Ramón E Sánchez Cruz1, Sophie Caplan1

  • 1Mechanical Engineering Department, Boston University, Boston, MA, 02215, USA.

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概括

研究人员从聚合物复合材料中开发出刚性,热敏的4D打印材料. 这些先进的材料使4D打印机器人能够举起重物并表现出自我感应能力.

关键词:
4D打印是一种4D打印.执行器 执行器 执行器自主结构是独立的结构.超材料是指金属材料.变形结构的结构.机器人格子是一个机器人格子.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 机器人技术 机器人技术 机器人技术
  • 添加剂制造 添加剂制造 添加剂制造

背景情况:

  • 4D打印使用响应刺激的材料来改变结构,以时间为第四维.
  • 现有的4D打印材料通常是软的 (E: 10−410 MPa),限制了可扩展性和承载能力.
  • 当前的软材料限制了执行应力和承载能力.

研究的目的:

  • 引入新的多尺度异质聚合物复合材料,用于刚性,热敏的4D打印.
  • 克服软材料在4D打印中的局限性.
  • 实现增强的可扩展性,执行应力和承载能力.

主要方法:

  • 开发了刚性,热敏的聚合物复合油墨.
  • 实现了可调节的电导率,用于朱尔加热的启动和自传感.
  • 利用电气可控制的二层作为4D打印的构建块.
  • 设计和打印平面几何形状,变成3D结构.

主要成果:

  • 新型油墨的弹性模量 (E) 比现有的4D打印材料高出四个数量级.
  • 展示了一个4D打印的起重机器人,该机器人在重量正常化的起重负荷和执行应力方面创造了新的记录.
  • 创建平面格子结构,转化为复杂的,自我支的3D形状.
  • 设计了一种4D打印的机器人格子结构,能够承载其自身重量的144倍.

结论:

  • 多尺度异质聚合物复合材料代表了4D打印材料的重大进步.
  • 这些刚性,敏捷的材料使4D打印的执行器和机器人具有前所未有的性能.
  • 开发的材料和设计为先进的自组装和自动执行结构铺平了道路.