高性能植物衍生热塑性聚弹性体泡通过操纵混合吹剂的充电顺序来实现
Zhaorui Xu1, Guilong Wang1, Zhaozhi Wang1
1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong 250061, China.
International journal of biological macromolecules
|August 17, 2023
概括
现在可以开发高性能植物衍生热塑性聚弹性体 (TPEE) 泡. 使用混合吹剂的新型微细胞泡技术显著减少了收缩,并增强了强度和弹性等机械性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 植物衍生的热塑性聚弹性体 (TPEE) 具有环保性质,但由于收缩,在高性能泡制备方面面临挑战.
- 开发具有优异机械性能和减少收缩的TPEE泡对于先进的应用至关重要.
研究的目的:
- 为了研究混合吹剂充电顺序对TPEE微细胞泡行为的影响.
- 开发一种新的发泡技术,用于生产具有增强结构稳定性和机械性能的高性能TPEE泡.
主要方法:
- 采用了两个微细胞泡路径:CO2第一次充电过程 (CO2-F过程) 和N2第一次充电过程 (N2-F过程).
- 分析了混合吹风剂 (CO2和N2) 的吸附和由此产生的泡行为,收缩和TPEE泡的机械性能.
主要成果:
- 与CO2-F工艺相比,N2-F工艺导致了较低的CO2吸附和更高的N2吸附.
- 通过N2-F工艺生产的TPEE泡显著减少了收缩和改善了爬行回收.
- 来自N2-F工艺的泡在类似密度下表现出增强的强度 (压缩强度增加52%) 和弹性 (能量损耗系数减少50%).
结论:
- 使用混合吹剂的N2-F工艺是一种有效的技术,用于制造具有减少收缩和优异机械性能的高性能TPEE泡.
- 这一进步为开发用于各种工业应用的轻质,绝缘和弹性生物质TPEE泡开辟了新的途径.
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