含有硫原子的生物基 Pyrrole 化合物作为碳黑与不和弹性体的合剂
Gea Prioglio1, Simone Naddeo1, Ulrich Giese2
1Department of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy.
Nanomaterials (Basel, Switzerland)
|October 27, 2023
概括
研究人员开发了功能化碳黑 (CB),以减少轮胎化合物中的歇斯底里. 这一创新导致了更绿色的轮胎,具有更好的机械性能和更低的滚动阻力,提高了轮胎里程和减少了磨损.
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
- 可持续工程 可持续工程
背景情况:
- 轮胎化合物传统上使用碳黑 (CB) 和,与联剂的联剂导致乙醇排放.
- 减少弹性复合材料中的歇斯底里对于提高轮胎性能和燃油效率至关重要.
- 开发具有增强机械性能和减少环境影响的"绿色轮胎"的先进材料是关键的研究领域.
研究的目的:
- 用硫基组合成和表征新型的醇功能化碳黑 (CB).
- 通过使用反应性CB来减少轮胎应用的弹性复合材料中的歇斯底里.
- 评估这些功能化CB在轮胎组合中的性能,旨在提高机械性能和可持续性.
主要方法:
- 生物基醇化合物的合成:2-(2,5-dimethyl-1H-pyrrol-1-yl) 乙烯-1-thiol (SHP) 和1,2-bis(2-(2,5-dimethyl-1H-pyrrol-1-yl) 乙烯) 硫化物 (SSP).
- 用SHP和SSP实现CB的功能化,实现高收益率 (92-97%) 和碳效率.
- 使用聚 styrene-co-butadiene) 和聚 1,4-cis-isoprene) 制备弹性体复合材料,其中具有不同百分比的功能化CB (CB/SHP,CB/SSP).
- 使用TGA,提取和动态机械分析对复合材料进行表征,以评估固化效率,动态刚性和歇斯底里.
主要成果:
- 功能化CB (PyC) 证明了改善的固化效率和增加的动态刚性 (约. 20%). 这是一个很好的方法.
- 歇斯底里斯的显著减少 (大约. 10%在70°C) 观察到,特别是66%的CB/SSP替代.
- 与原始CB相比,复合材料表现出类似或改进的最终拉伸性能.
- 证实了基于硫的功能组与弹性质链的反应性.
结论:
- 开发的反应性CB,与含硫的醇化合物功能化,有效地减少弹性体复合材料中的歇斯底里.
- 这一创新为"绿色轮胎"提供了一条道路,其机械性能提高,滚动阻力低,行驶里程增加.
- 使用反应性CB消除了对二氧化和相关的合剂的需求,减少了环境排放和轮胎磨损.
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