通过BaTiO3/聚多巴胺覆盖层增强多层陶电容器的机械性能
Yong Park1, Jung Jin Park1, Kwan Soo Park1
1MLCC Green Chip Lab, MLCC Development Team, Samsung Electro-Mechanics, Suwon-si 16674, Republic of Korea.
Polymers
|October 14, 2023
概括
聚多巴胺 (PDA) 增强了多层陶电容 (MLCC) 覆盖层,提高了附着性和机械强度. 这种强大的PDA涂层还可以保护MLCC免受水分降解.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 陶工程 陶工程
背景情况:
- 多层陶电容器 (MLCC) 需要坚固的覆盖层,以防止外界冲击造成的分层和裂.
- 开发用于增强MLCC覆盖层粘附和机械强度的技术对于设备可靠性至关重要.
研究的目的:
- 调查聚多巴胺 (PDA) 的应用,一种以贝为灵感的粘合剂,作为MLCC的坚固覆盖层.
- 评估PDA处理对MLCC覆盖层分散稳定性,粘附性,机械性能和耐潮性的影响.
主要方法:
- 用PDA处理酸 (BT) 颗粒以形成BT/PDA泥.
- 与裸体BT层相比,BT/PDA层的分散稳定性,粘附性和机械性能 (压缩模量) 的表征.
- 燃烧后MLCC覆盖层的分析,重点关注N-doped石墨PDA的硬度,性和防潮性.
主要成果:
- PDA处理显著改善了BT/PDA泥的分散稳定性,防止了颗粒的重新聚合.
- 与BT/PDA层相比,BT/PDA层的粘附度提高了217%,压缩模量增加了29.4%.与BT层相比,BT/PDA层的粘附度提高了217%,压缩模量增加了29.4%.
- N-doped 石墨 PDA 形成了疏水的表面,创造了扭曲的路径,防止湿度诱导的绝缘电阻的降解.
结论:
- PDA作为MLCC覆盖层的有效粘合剂和强化剂,显著提高了机械完整性.
- N-doped石墨PDA涂层通过增加硬度,性,并提供对水分的疏水保护来提高MLCC的耐用性.
- 这种以鱼为灵感的方法为制造耐冲击和可靠的MLCC提供了一个有希望的策略.
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