3D打印聚合物元素的电电阻
Stanislav Stankevich1, Jevgenijs Sevcenko1, Olga Bulderberga1
1Institute for Mechanics of Materials, University of Latvia, Jelgavas St. 3, LV-1004 Riga, Latvia.
Polymers
|July 29, 2023
概括
这项研究研究了3D打印导电结构的电电阻. 研究结果表明,单个打印元件的几何和化显著影响电阻,使其作为热元件和应变传感器的潜在用途成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 添加剂制造 添加剂制造 添加剂制造
- 电气工程 电气工程
背景情况:
- 化丝制造 (FFF) 允许创建复杂的结构.
- 导电材料越来越多地被整合到3D打印组件中.
- 了解这些材料的电特性对于它们的应用至关重要.
研究的目的:
- 在各种尺度上研究3D打印导电结构的电电阻.
- 分析结构几何和后处理对电阻的影响.
- 评估混合导电结构的压电阻特性和热稳定性.
主要方法:
- 在单轨 (traxels),单层,多层和混合结构上电阻的表征.
- 使用了两个商业导电丝:Proto-Pasta和Koltron G1.
- 研究了热后加工 (制) 和焦力加热的作用.
主要成果:
- 单个轨迹几何学和电阻力决定了印刷物体的整体电异性和电阻力.
- 化显著改变了挤出纤维和拖丝的电阻.
- 混合结构表现出高达70°C的良好热稳定性和显著的压电阻响应 (尺度因子15-25).
结论:
- 单个打印元件的几何形状对于控制FFF导电结构的电特性至关重要.
- 热后处理提供了一种调整印刷导电材料电阻的方法.
- 混合结构显示出应用潜力,作为集成热元件和应变计传感器,在具有有限延长的刚性材料中.
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