聚 (?? 离子液体) 双网弹性体具有通过子-π 相互作用增强的高冲击阻力
Qingning Li1, Weizheng Li1, Ziyang Liu1
1Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
Advanced materials (Deerfield Beach, Fla.)
|December 27, 2023
概括
新的多离子液体 (PIL) /多乙烯酸 (PHEA) 双网 (DN) 弹性体提供优越的抗冲击性和性. 这些先进材料为脆弱的物品提供了更好的保护,为下一代安全材料铺平了道路.
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
- 纳米技术纳米技术
背景情况:
- 对于先进的冲击保护材料的需求需要轻量,高冲击阻力,灵活性和可控制的性.
- 现有的材料往往很难有效地平衡这些竞争性质.
- 聚离子液体 (PILs) 和聚乙烯酸 (PHEA) 是材料设计的有前途的聚合物组件.
研究的目的:
- 构建新型的多离子液体 (PIL) /多乙烯酸 (PHEA) 双网 (DN) 弹性体.
- 通过特定的交叉连接和相互作用来增强抗冲击,性和机械强度.
- 探索这些弹性体作为下一代安全和保护材料的潜力.
主要方法:
- 使用多种交叉连接策略合成PIL/PHEA双网 (DN) 弹性体.
- 利用PIL链的阴子-π相互作用来增强非共价凝聚力.
- 在高速冲击负荷下研究的材料特性 (5000 s-1).
主要成果:
- 准备好的PIL DN弹性体表现出异常的压力强度 (95.24 ± 2.49 MPa).
- 在高速冲击下,获得了非凡的性 (55.98 ± 0.66 MJ m-3).
- 该材料成功地将强度和灵活性结合起来,用于冲击保护.
结论:
- 开发的PIL DN弹性体具有出色的机械性能,包括高强度和性.
- 阴离子-π 相互作用对于实现强大的非共价凝聚力和卓越性能至关重要.
- 这一战略为设计先进的安全和保护材料提供了新的途径.
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