酸结合作为一个接口修饰器,用于增强混合环氧复合材料的热和机械性能
Hai-Long Cheng1, Seul-Yi Lee2, Na Chu2
1Department of Polymer Materials, Jilin Institute of Chemical Technology, Jilin 132022, China.
Polymers
|July 30, 2025
概括
用泰坦酸合剂修改填料的表面,可以提高双乙烯 (DGEBA) 复合材料的热导电性和机械强度. 这种接口工程克服了典型的权衡,为电子产品创造了先进的材料.
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:
- 导热的聚合物复合材料对于电子包装的散热至关重要.
- 双-A (DGEBA) 环氧的二甲基乙醇具有由于低导热性的局限性.
- 导电填充剂由于填充剂-矩阵兼容性差,通常会降低机械性能.
研究的目的:
- 为了解决DGEBA基复合材料的热力学权衡问题.
- 通过表面修饰来改善填充剂-矩阵粘附和分散.
- 为热管理应用开发高性能材料.
主要方法:
- 用酸合剂修改 (Al) 填充剂的表面.
- 将未经处理和修改的Al填充剂纳入DGEBA矩阵.
- 评估导热性,屈曲强度和冲击强度.
主要成果:
- 未经处理的Al填充剂增加了导热性,但降低了曲强度.
- 泰坦酸改性Al (Ti@Al) 填充剂增强了导热性,同时保持和改善了机械性能.
- Ti@Al复合材料实现了35.31 MPa的屈曲强度,并将冲击强度提高到1.01 kJ/m2.
结论:
- 通过titanate合的接口工程有效地克服了混合复合材料中的热力学权衡.
- 表面改性Al填充剂为开发先进的热接口材料提供了一个可行的策略.
- 这种方法可以创建强大的,高性能复合材料,用于苛刻的电子应用.
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