基于聚合物接接接头中的分离聚乙烯/碳黑复合材料的加热和应变传感元件
Yevheniia Buinova1,2, Anastasiia Kobyliukh1, Yevgen Mamunya2
1Center of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowskiej St., 41-800 Zabrze, Poland.
Materials (Basel, Switzerland)
|August 10, 2024
概括
这项研究开发了碳黑填充的高密度聚乙烯复合材料,用于实时监测接的聚合物接头. 优化的复合材料含量平衡了加热和传感性能,改善了工业产品的质量.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 纳米技术纳米技术
背景情况:
- 实时监测接接头质量对于工业产品的可靠性至关重要.
- 基于表面损伤分析的传统方法是不够的.
- 在聚合物接头中开发集成的传感和加热元件是一个关键的挑战.
研究的目的:
- 研究基于高密度聚乙烯 (HDPE) 的复合材料,含有不同碳黑 (CB) 含量,作为集成加热元件和应变传感器.
- 评估电接过程中产生的朱尔热对这些复合材料的结构和传感器性能的影响.
- 确定最佳的CB含量,以平衡热阻式加热和应变传感能力.
主要方法:
- 制造HDPE-CB复合材料,CB含量在20~30%体积之间.
- 在模拟的电聚变接过程中,通过 Joule 热量产生来应用 pyroresistive 加热.
- 分析复合材料结构,晶度和电导率在接后发生的变化.
- CB 含量与电导率和 pyroresistive/传感性能的相关性.
主要成果:
- 在接过程中产生的热量取决于纳米碳含量,并影响聚合物矩阵结晶性.
- 较低CB含量的复合材料显示,由于导电路的破坏,电导率下降.
- 含有较高CB的复合材料表现出较高的电导率,这归因于粒子之间的距离减少.
- 特定的CB度被确定为最佳的 pyroresistive 和传感性质.
结论:
- 在电融合接中,HDPE-CB复合材料可以作为有效的加热元件和应变传感器.
- 接引起的朱尔加热显著影响复合材料的微观结构和电气性能.
- 仔细控制碳黑含量对于优化这些智能聚合物接头的性能至关重要.
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