用于PVC的新生物基塑化剂来源于和二元化脂肪酸
Patryk Dziendzioł1,2,3, Sylwia Waśkiewicz1, Katarzyna Jaszcz1
1Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland.
Materials (Basel, Switzerland)
|May 14, 2025
概括
研究人员开发了新的基于生物的橄 Ester,作为安全的,无毒的塑化剂,用于聚乙烯 (PVC). 这些环保替代品显示出有希望的兼容性和可塑性,解决了对传统甲酸盐的担忧.
科学领域:
- 聚合物科学 聚合物科学
- 材料化学 材料化学
- 绿色化学 绿色化学
背景情况:
- 作为PVC增塑剂广泛使用的酸盐,作为内分泌干扰剂,具有重大健康和环境风险.
- 由于立法变化和环境问题,市场对可持续的,无毒的增塑剂的需求日益增加.
- 传统的甲酸盐可塑剂面临着越来越严格的审查,需要开发更安全的替代品.
研究的目的:
- 合成和表征新型生物基性基聚烯作为聚乙烯化物 (PVC) 中甲酸化剂的潜在替代品.
- 评估这些新型PVC配方中的新型氧化的兼容性,塑化效率和性能特性.
- 为了比较新型生物基质增塑剂与商业上可用的酸盐增塑剂的性能.
主要方法:
- 通过聚化二元化脂肪酸 (DFA),基酸 (ADA),三乙烯糖醇 (TEG) 和2-乙烯醇 (2-EH) 的聚化合成奥利戈.
- 使用核磁共振 (NMR),尺寸排除色谱 (SEC) 和粘度测量进行表征.
- 通过造制备PVC薄膜,然后对可塑化剂迁移,硬度,热稳定性 (TGA,DSC) 和机械强度进行测试.
主要成果:
- 在ADA与DFA的9:1摩尔比率下合成的橄素与多余的2-EH在PVC中表现出极好的兼容性和塑化性能.
- 增加的DFA含量对与PVC的基合性产生了负面影响.
- 4:1的ADA-DFA比率产生了适合在较低度或混合物中使用的橄 Ester.
结论:
- 从DFA和ADA衍生出的生物基性脂具有显著的潜力,可以作为PVC的环保和无毒塑化剂.
- 优化的合成比率对于在PVC应用中实现所需的兼容性和性能至关重要.
- 这些新型的化剂为传统的酸盐增塑剂提供了可持续的替代品,符合绿色化学原则.
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