通过与刚性和软微域相结合,具有协同增强强度和性的动态热固化树脂
Yinzhou Guo1, Tiantian Shu2, Yihan Wang1
1School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China.
Macromolecular rapid communications
|March 7, 2024
概括
研究人员开发了一种新方法,利用微球中的动态 hemiaminal 键制造出强大而坚固的耐热树脂. 这种创新方法显著提高了先进应用的材料性能.
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
背景情况:
- 在材料中同时达到高强度和性,特别是热固性树脂,是一个重大挑战.
- 传统的耐热树脂通常具有有限的强度和性,限制它们在苛刻的应用中使用.
研究的目的:
- 为制备具有协同强度和性的热固性树脂提出一种有效的策略.
- 通过提高其机械性能来克服传统耐热材料的局限性.
主要方法:
- 通过沉聚合制造,制造含有动态 hemiaminal 键的软硬微球.
- 热压缩微球以诱导接口的交叉连接,形成刚软混合材料.
主要成果:
- 由此产生的硬软混合薄膜 (RSBF) 具有优越且同时具有强度和性.
- 与前体软和刚性材料相比,性分别提高了240%和2100%,强度与刚性前体相当.
- 与传统加工材料相比,RSBF的强度增加了168%,性增加了255%.
结论:
- 开发的方法成功地产生了具有强度和性的特殊组合的热固化树脂.
- 这种方法为制造专用应用的先进聚合物热提供了一个有前途的途径.
- 在微球中使用动态半氨基键是实现协同机械增强的关键.
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