碳纳米管,化和石墨填充的聚烯复合材料用于热能管理
Yoldas Seki1, Mehmet Mete Tokgöz2, Ferhat Öner2
1Faculty of Science, Dokuz Eylul University, Buca, Izmir 35160, Turkey.
ACS omega
|June 12, 2023
概括
这项研究使用合成石墨,碳纳米管 (CNT) 和化 (BN) 增强了多基的导热性. 混合填充剂显著改善了热和机械性能,提供了先进的材料解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物复合材料 聚合物复合材料
- 纳米技术 纳米技术
背景情况:
- 多基 (POKs) 具有理想的机械性能,但对于先进的应用需要增强的导热性.
- 合成石墨 (SG) 是一种常见的填充剂,但其有效性可以通过其他导电添加剂进一步提高.
- 多壁碳纳米管 (CNT) 和六角化 (BN) 以其优异的热和电性能而闻名.
研究的目的:
- 调查CNT和BN对30重% SG填充POK的导热率的单独和协同效应.
- 评估这些填充剂对电导率,热偏移温度 (HDT),屈曲强度和冲击强度的影响.
- 为了确定最佳的填充剂组合,以提高材料性能.
主要方法:
- 聚烯复合材料由30%重量%的合成石墨 (SG) 制备.
- 多壁碳纳米管 (CNTs) 和六角化 (BN) 的不同度被单独和混合组合添加.
- 测量了热导率 (在平面内和通过平面),电导率,HDT,屈曲强度和Izod划痕冲击强度.
主要成果:
- 无论是CNT还是BN,各自都显著提高了POK-30SG的导热率.
- 添加CNT导致更高的平面内导热率,而添加BN则更有效的通过平面导热率.
- 混合填充剂,特别是BN和CNT的组合,产生了最高的热屈曲温度,屈曲强度和冲击强度.
结论:
- CNT和BN是有效的填充剂,可以提高PG填充POK的导热率.
- 与CNTs相比,BN在提高通过平面导热率和机械性能方面表现出卓越的表现.
- 混合填充系统提供协同效益,导致聚烯复合材料的整体热和机械性能优越.
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