作为PVC生态塑化剂的二甲基酸盐 - - 经济合成和功能性质
Anna Tracz1,2, Sławomir Boncel3,4,1, Ewa Pankalla2
1Faculty of Chemistry, Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, NanoCarbon Group, Silesian University of Technology, Gliwice 44-100, Poland.
Royal Society open science
|March 27, 2025
概括
丁酸 (DBS) 是一种安全,可扩展和环保的替代品,可以替代聚乙烯 (PVC) 中的有毒甲酸增塑剂. 经过DBS塑化的PVC表现出优异的机械和泄漏性能,支持其在工业上采用.
科学领域:
- 聚合物科学 聚合物科学
- 材料化学 材料化学
- 可持续化学 可持续化学
背景情况:
- 聚乙烯 (PVC) 需要塑化以获得灵活性,酸盐被广泛使用,但由于毒性而面临限制.
- 丁酸 (DBS) 是一种安全且可生物降解的阿里法酸,具有出色的性能和可扩展性,是可行的替代品.
研究的目的:
- 为了证明一个可扩展的合成Di-n-基脂酸盐 (DBS).
- 评估DBS塑化PVC的性能,作为一种更安全的替代品,而不是PVC的Phthalate塑化.
主要方法:
- 优化了DBS的合成,在特定条件下 (90°C,15mol%催化剂,4:1 BuOH:sebacic酸比,2小时) 达到大约100%的产量.
- 在千克尺度上生产DBS塑化PVC.
- 评估关键性质,包括可塑化剂的迁移,延伸,破裂应力和Shore A硬度.
主要成果:
- 可扩展的DBS合成实现了~100%的收益率.
- 经过DBS塑化的PVC表现出最小的塑化剂迁移 (28天后12.78%).
- 增强的机械性能:350%延伸,15.7MPa破裂应力,80.2Shore A硬度,性能优于传统的甲酸盐.
结论:
- 在工业上,DBS合成是可扩展的.
- 与基于酸盐的PVC相比,DBS塑化PVC提供了优越的机械性能和泄漏性能.
- 在PVC应用中,DBS是一种有希望的环保替代物,可以替代有毒的甲酸,从而促进可持续材料的使用.
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