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烯功能化PDMS分散剂使高负载石墨/PDMS复合材料具有增强的导热性和可加工性

Yoojung Choi^1,2, Jeongmin Jo¹, Yongchan Jang¹

¹Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Republic of Korea.

Macromolecular rapid communications

|August 17, 2025

概括

研究人员开发了一种用于聚合物纳米复合材料的新分散剂,提高了先进电子产品的导热率和可加工性. 这项创新通过降低高负载复合材料的粘度来增强热管理材料.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
纳米技术纳米技术

背景情况:

下一代电子产品由于小型化和功率密度增加,需要高效的热管理.
聚合物纳米复合材料对热接口材料 (TIM) 是有前途的,但在高填充量下面面临着可加工性挑战.

研究的目的:

开发具有增强导热性和可加工性的高负荷石墨/多甲基 (PDMS) 复合材料.
设计一个烯功能化聚二甲基 (PyPDMS) 分散剂,以改善石墨分散和质性质.

主要方法:

合成的烯功能化聚二甲基西洛 (PyPDMS) 作为一个界面修饰剂.
将PyPDMS纳入石墨/PDMS复合材料,以减少聚合和粘度.
使用高达50%重量的石墨加载制造的复合材料,并评估了它们的导热性和质性质.

主要成果:

PyPDMS分散剂显著降低了复合材料的粘度,高达1.6倍.
在不影响加工能力的情况下,实现了高石墨负载 (高达50%重量%) 的统一复合材料制造.
复合材料的导热率比没有PyPDMS的材料增加了10.57%,同时保持了灵活性.

结论:

开发的PyPDMS分散剂可以制造高度可加工,高负载的石墨/PDMS复合材料.
这种方法为要求高的电子应用中先进的热接口材料 (TIM) 提供了实用解决方案.
该研究强调了定制界面修饰器优化纳米复合材料性能的潜力.

关键词:

石墨烯酸石墨是一种石墨.聚二甲基氧 (PDMS) 是一种聚二甲基氧.聚合物分散剂聚合物分散剂热接口材料 (TIM) 是一种热接口材料.粘度粘度粘度粘度粘度

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