增强的低密度泡被水-基混合物吹
Ingrid Rebane1, Karl Jakob Levin1, Uno Mäeorg2
1Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
Polymers
|November 25, 2023
概括
研究人员探索了低成本的喷气剂,如水,酒精,二醇和糖醇,用于泡. 不同的二醇链长度显著影响泡密度和强度,为增强材料性能提供了途径.
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
- 泡技术的技术泡技术的技术
背景情况:
- 泡是由于其可调节性质而理想的.
- 有水,酒精,二醇和糖醇等廉价的吹气剂可供使用.
- 组合吹风剂对泡性能的影响尚不清楚.
研究的目的:
- 在聚合物复合材料中对含基的吹剂进行比较研究.
- 为了优化泡结构的低密度和均的多孔性.
- 为了研究吹剂成分对机械性能的影响.
主要方法:
- 用水,酒精,二醇和糖醇作为吹气剂进行比较分析.
- 制备充满烟雾和的聚合物复合材料系统.
- 优化泡密度 (75150 kg·m−3) 和孔隙结构.
- 研究二醇链长度 (Cn) 对泡性能的影响.
- 对表面密度,细胞壁厚度,粘度 (~7000 cSt) 和固化时间 (<2 分钟) 的分析.
主要成果:
- 不同的二醇链长度 (Cn) 改变了泡密度,提高了拉伸强度.
- 用1,4-butanediol取代10mol%的水,使密度降低了26%,比分强度增加了5%.
- 结合甘和水吹,产生了比水吹泡明显密度低30%的泡.
- Cn> > 4 个二醇对表面密度和细胞壁厚度表现出奇偶的影响.
结论:
- 含有基的吹剂为泡的性能提供了一个可调的方法.
- 二醇链长度是控制泡密度和机械性能的一个关键因素.
- 这些发现使得开发低密度的泡具有优越的强度,可用于各种应用.
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