一种以为基础的强大且可愈合的弹性体,具有前所未有的穿孔抗性,用于高性能柔性电子产品
Yujie Jia1, Qingbao Guan1, Chengzhen Chu1
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China.
研究人员开发了一种新型化聚氨 (FPPU) 弹性体,它既具有高机械强度,又具有动态自我愈合能力. 这种高性能材料可以实现先进的应用,包括抗污染的 triboelectric 纳米发电机.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 材料科学中一个常见的挑战是高机械强度和动态自愈特性之间的权衡.
- 由于相互排斥的潜在机制,现有材料往往会损害对方的一种特性.
研究的目的:
- 设计和制造一种新的化聚氨 (FPPU) 弹性体,可以克服机械强度与自我愈合的权衡.
- 调查合物的作用调整聚合物特性和提高性能.
主要方法:
- 使用八四-4,4'-双,合成一种化基聚氨 (FPPU) 弹性体.
- 机械性能 (穿孔能量,抗拉强度) 和自愈效率的表征.
- 使用已开发的弹性体作为基质,制造和测试一个 triboelectric 纳米发电机 (TENG).
主要成果:
- 与其非化对应物相比,FPPU弹性体表现出更高的穿孔能量 (648.0mJ) 和拉伸强度 (27.0MPa).
- 实现了卓越的自我愈合效率 (92.3%),具有低表面能量,隙不敏感性和可再加工性.
- 基于FPPU的TENG证明了由于的电子亲和力导致的超高峰开放电路电压 (302.3V).
结论:
- 的结合有效调节链间相互作用,并增强聚氨中化学键的可逆性.
- 开发的FPPU弹性体提供了高强度,自我愈合和低表面能量的独特组合.
- 这项研究为制造高性能弹性体提供了一个多功能途径,用于像自愈电子设备这样的先进应用.
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