真空辅助的自我愈合的两共聚物膜用于气体分离
Yao-Wei Hong1, Livy Laysandra2, Yu-Cheng Chiu2
1Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan.
ACS applied materials & interfaces
|July 6, 2023
概括
研究人员开发了用于气体分离的自我愈合的两性共聚合物. APNMA膜显示出极好的CO2/N2选择性,并在真空辅助自我愈合后保持性能,性能优于商业膜.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 聚合物化学 聚合物化学
背景情况:
- 膜气体分离为传统方法提供了节能和可持续的替代方案.
- 现有的聚合物膜往往缺乏自我修复能力,限制了它们的长期性能和耐用性.
- 开发自愈膜对于提高气体分离过程的寿命和可靠性至关重要.
研究的目的:
- 为先进的气体分离应用合成新型的自我愈合的两性共聚物.
- 为了研究CO2/N2分离性能和开发的膜的自我愈合效率.
- 将新型膜的性能与商用材料进行比较.
主要方法:
- 合成两性共聚物 (APNMA和APMAA),其中包括n-丁烯酸 (BA),N-基甲基) 烯胺 (NMA) 和甲基烯酸 (MAA).
- 使用常规技术和真空辅助技术评估自愈特性.
- 在自我愈合前后评估气体透性和CO2选择性.
主要成果:
- APNMA膜表现出高的CO2/N2选择性 (17.54),与商业PEBAX-1657 (20.09) 相比.
- 真空辅助的自我愈合成功地恢复了受损后APNMA膜的气体选择性.
- 与PEBAX-1657不同的是,APNMA膜在治愈后保持了其高气体透性和CO2/N2选择性.
结论:
- 创新的自我愈合的两性共聚物 (APNMA) 已成功开发用于气体分离.
- APNMA膜表现出优异的CO2/N2分离性能和强大的自我愈合能力.
- 这些发现突显了自愈膜在可持续和高效的气体分离技术方面的潜力.
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