阻燃GF-PSB/DOPO-POSS复合材料具有低Dk/Df和高热稳定性,用于高频铜应用
Ke Zheng1, Yizhi Zhang1, Jiaxiang Qiu2
1Sub Center of Dongguan University of Technology of National Engineering Research Center of Electronic Circuits Base Materials, School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China.
Polymers
|February 24, 2024
概括
新的阻燃材料,DOPO-POSS修改的 styrene-butadiene 块共聚合物 (PSB) 层层,为高频应用提供低介电损耗和增强的阻燃性. 这些先进的铜层板 (CCL) 显示出印刷电路板 (PCB) 的巨大潜力.
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
- 电气工程 电气工程
背景情况:
- 高频通信设备需要具有低介电损失 (Df),阻燃性和热稳定的先进材料.
- 现有的铜层板 (CCL) 往往没有达到这些苛刻的性能标准.
研究的目的:
- 为高频和高速应用开发新的高性能CCL.
- 通过修改用阻燃剂来增强 styrene-butadiene 块共聚合物 (PSB) 的性能.
主要方法:
- 碳化合物树脂乙烯-丁块共聚合物 (PSB) 与9,10-二-9-oxa-10-phoshaphenanthrene-10-氧化物/多面寡合物silsesquioxanes (DOPO-POSS) 的修饰.
- 制造PSB/DOPO-POSS层,然后用玻璃纤维布 (GF) 进行增强,以创建GF-PSB/DOPO-POSS复合层.
- 评估压电损失 (Df) 在10 GHz,阻燃性 (UL-94,有限的氧指数,自灭时间),热稳定性和动态机械性能.
主要成果:
- 在10 GHz时,PSB/DOPO-POSS层材 (20%的DOPO-POSS,0.09毫米厚度) 实现了显著低的0.00328的Df.
- GF-PSB/DOPO-POSS复合层材 (0.25毫米厚) 达到UL-94 V-1等级的阻燃性.
- 与商业PSB/PX-200和未经修改的PSB相比,经过修改的层状材料表现出更高的阻燃性和热/机械性能.
结论:
- DOPO-POSS 修改有效地提高了基于PSB的层材的介电和阻燃性能.
- 在高频和高速电子设备中,GF-PSB/DOPO-POSS复合层显示出印刷电路板 (PCB) 制造的极佳潜力.
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