室温自我愈合的聚氨含有具有增强机械性能的化粘土
Eva Dauder-Bosch1, José Miguel Martín-Martínez2
1Noxun Adhesives, Scientific Park of Alicante, 03005 Alicante, Spain.
Polymers
|October 28, 2025
概括
这项研究通过添加化粘土来增强室温自愈聚氨 (PU). 最佳的0.5%重量%的化酸盐添加改善了机械强度,同时保持了自我愈合特性.
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
背景情况:
- 室温自愈聚氨 (PU) 通常具有有限的机械强度.
- 在不影响自我愈合的前提下提高机械性能是一个关键的挑战.
研究的目的:
- 为了增强内在自我愈合的聚氨的机械性能.
- 为了研究化石粘土填充剂对PU性能的影响.
- 为了保持室温的自我愈合能力.
主要方法:
- 合成的聚氨使用聚碳酸二醇,亚利法二酸和1,4-butanediol.
- 在合成过程中将不同量的 (0.5-10重量%) 热处理的化粘土纳入聚合物中.
- 评估了化填充PU的结构,热,粘弹性和机械性能.
主要成果:
- 所有充满化素的PU都保留了室温自我愈合的能力.
- 含有0.5%重量%化酸 (E0.5) 的PU表现出最好的性能平衡,分散良好的纳米管增强了链的流动性.
- 超过0.5%重量的化物含量增加导致聚合和有限的改善,没有进一步的增长超过3%重量.
结论:
- 哈洛西特粘土可以有效地增强自愈聚氨的机械性能.
- 最佳的填充物加载对于最大化效益和避免聚合等负面影响至关重要.
- 这项研究为设计先进的多功能PU提供了对填充物-聚合物相互作用的见解.
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