探索视觉导热路径对聚合物复合材料导热性的影响以及实际应用
Xin Sun1, Wen-Xuan Ma1, Jian-Xin Zhang1
1School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
Langmuir : the ACS journal of surfaces and colloids
|July 23, 2024
概括
这项研究通过将聚乙烯-八弹性体 (POE) 颗粒封装在和化等填充剂中,开发出导热的聚合物复合材料. 这些复合材料有望作为用于电子冷却和电磁屏蔽应用的热接口材料.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 聚合物复合材料的导热性对于散热至关重要.
- 构建有效的传热路径是提高热性能的关键.
- 保持聚合物基板性能对于实际应用至关重要.
研究的目的:
- 为了研究聚合物复合材料中的传热机制.
- 探索填充剂形状和密度对导热性的影响.
- 开发新的热接口材料和多功能复合材料.
主要方法:
- 填充剂在聚乙烯-八烯弹性体 (POE) 颗粒上的物理吸收.
- 使用封装POE颗粒通过加热压力制造复合薄膜.
- 使用红外热成像,有限元素分析和热电阻理论进行分析.
主要成果:
- 用 (Al2O3),化 (BN) 和混合填充剂制成的复合薄膜已经成功地准备好.
- 分析了填料成分和密度对传热路径构造的影响.
- 复合材料表现出良好的散热,作为热接口材料和电磁屏蔽能力.
结论:
- 该方法有效地创建热传导路径,同时保持POE基板性能.
- 开发的复合材料适用于芯片冷却和集成多功能应用.
- 这项研究强调了填充剂-矩阵相互作用对先进材料设计的重要性.
相关概念视频
Mechanisms of Heat Transfer I
4.2K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
4.2K
Mechanisms of Heat Transfer II
3.2K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
3.2K
Conduction, Convection and Radiation: Problem Solving
1.2K
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
1.2K
Thermal Strain
895
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
895


