化学回收的商用聚氨 (PUR) 泡使用2-基烯烯酸酸盐作为糖解反应剂,用于提高灵活性的汽车应用
Vojtěch Jašek1, Petr Montag2,3, Přemysl Menčík1
1Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology 61200 Brno Czech Republic xcjasekv@vutbr.cz.
RSC advances
|September 23, 2024
概括
这项研究开发了一种利用麻油衍生物回收聚氨 (PUR) 泡的方法,产生液态回收物 (REC). 将REC纳入新的PUR泡提高了机械性能,并证明了工业可扩展性.
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
- 可持续制造 可持续制造 可持续制造
背景情况:
- 汽车行业面临的挑战是,聚氨 (PUR) 泡废弃物在头线复合材料中.
- 需要有效的回收策略来减少废料和成本.
研究的目的:
- 为了研究PUR泡的脱聚合,使用合成的酸衍生物.
- 将产生的液体回收物 (REC) 纳入原始PUR泡,并评估其性能.
主要方法:
- 从麻油中合成2-基基酸盐 (2-HPR).
- PUR泡的糖解产生液体回收物 (REC).
- 使用GPC,FTIR,ESI-MS和H NMR进行合成产品的表征.
- 实验室规模 (565毫升) 和工业规模 (125毫升) 泡生产与REC合并.
- 含有REC的PUR泡的风湿学,结构性,反应性,拉伸性和曲性测试.
主要成果:
- 在2-HPR合成 (97.5%) 和PUR脱聚合 (87.2%) 中获得了高产量.
- 添加30%的REC显著降低了表面粘度和增加了反应性.
- 随着REC含量 (≥15%) 的下降,泡密度下降,机械性能保持或改善.
- 20%的REC含量系统显示出升级的前景,在125 L.成功地证明了这一点.
结论:
- 使用从麻油中提取的2-HPR去聚合和回收PUR泡是可行的.
- 将REC纳入PUR泡中可以提高机械性能并降低密度.
- 该过程具有可扩展性,为汽车PUR泡废物提供了可持续的解决方案.
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