喷雾火焰合成和碳黑-异质聚合物的多尺度表征
Simon Buchheiser1, Ferdinand Kistner1, Frank Rhein1
1Process Machines, Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany.
Nanomaterials (Basel, Switzerland)
|June 27, 2023
概括
研究人员开发了一种喷雾火焰方法,使用合体石材来结构碳黑聚合物. 这种技术提高了聚合物的总体尺寸,以改善电池材料中的聚合物粘合剂选项.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 对离子电池的需求不断增加,需要可持续的生产和回收方法.
- 提高电池材料性能和可加工性对于减少环境影响至关重要.
研究的目的:
- 通过喷雾火焰合成开发一种使用合体的碳黑聚合物的结构方法.
- 调查这些异质聚合物的多尺度特性,以便在电池材料中的潜在应用.
主要方法:
- 喷雾火焰合成,用于制造碳黑-二氧化异质聚合物.
- 使用小角度X射线散射 (SAXS),分析盘离心和电子显微镜进行多尺度表征.
主要成果:
- 碳黑和之间成功形成了烧结桥梁,将聚合物直径从201nm增加到357nm.
- 确定了同质异质聚合物形成的最佳条件 (质量比<1,粒子大小~10 nm).
- 在更高的质量比率和更大的二氧化颗粒大小 (>60 nm) 中观察到二氧化分离和凝聚.
结论:
- 喷雾火焰合成提供了一种多功能方法,用于创建结构化碳黑-二氧化异质聚合物.
- 优化的异质聚合增强了聚合物的特性,而不会改变初级粒子的特性.
- 这些结构性材料对先进的电池应用有很大的前景.
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