塑化和可混合性对天然结构和动态的竞争影响:对生物和商业塑化剂的比较研究
Luca Lenzi1,2, Itziar Mas-Giner3, Micaela Degli Esposti1,2
1Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Universitá di Bologna, Via Terracini 28, 40131 Bologna, Italy.
ACS polymers Au
|June 16, 2025
概括
甘三氨酸 (GT) 是一种生物基塑化剂,可以提高的弹性和固化速度,与以石油为基础的替代品不同. 作为先进应用的可持续选择,GT显示出前景.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 塑化剂可以提高的可加工性和灵活性.
- 传统的以石油为基础的塑化剂,如DOP和DBP,由于迁移而引发环境和健康问题.
- 行业需要可持续的,基于生物的替代品.
研究的目的:
- 调查甘三素酸 (GT) 和三-2-乙) 三素酸 (TOTM) 对天然 (NR) 和环氧化天然 (ENR) 的影响.
- 为了比较生物基塑化剂与石油衍生塑化剂对结构和动态的塑化和混合性影响.
- 评估GT作为应用的可持续替代品.
主要方法:
- 对GT和TOTM作为NR和ENR的增塑剂进行比较分析.
- 化研究,以评估固化特性和逆转.
- 结构分析侧重于硫桥长度和网络均性.
- 使用宽带介电光谱学进行混合性和链动力学调查.
主要成果:
- GT加速了火山化,减少了反转,并增强了的弹性.
- TOTM延迟了火山化,增加了反转,并形成了一个更为刚性的网络.
- 在NR中,GT促进了较长的硫桥和应变诱导的结晶.
- GT与ENR完全混合,增强了细分移动性,但在NR中部分混合,限制了链路动态.
- TOTM导致较短的硫键和更均的网络结构.
结论:
- 甘三氨酸 (GT) 与TOTM等石油衍生增塑剂相比,具有优势,包括更快的固化和更好的灵活性.
- GT的混合性在NR和ENR之间有所不同,影响链条动态不同.
- GT为高性能,生物基产品提供了一个可行的,可持续的替代品.
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