Self-Healing Polyurethane/Fabric Composite with Puncture Resistance Enabled by Phase Regulation and Matrix-Fiber Strengthening

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Applied Polymer Materials Pub Date : 2024-10-17 DOI:10.1021/acsapm.4c0163510.1021/acsapm.4c01635

Yabo Sun, Sheng Chu, Xianjin Hu, Xingteng Zhang, Mingyuan Zhang, Ching-Wen Lou* and Ting-Ting Li*,

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Abstract

To solve the problem of soft composites with high puncture resistance and self-healing at ambient temperature. A room-temperature self-healing thermoplastic polyurethane (TPU) coating was successfully synthesized through thoughtful phase modulation, and a type of puncture-resistant composite material was innovatively prepared by compositing TPU with high-performance aramid fabrics. The self-healing TPU coating formed a strong matrix-fiber interface through intermolecular hydrogen bonding (H-bonds) with aramid fibers. Experimental results showed that the maximum spike-puncture force and maximum knife-stab force of the composite were 14.69 and 4.22 times higher than those of pure aramid fabrics, respectively. And the self-healing efficiency of the spike stab resistance is as high as 44.91% and the self-healing efficiency of the knife stab is as high as 66.98% after 48h at 30 °C. Moreover, the room-temperature dynamics of the multiple dynamic bonds in this self-healing TPU coating positively affected the composite, which acquired an excellent ability to resist the damage inflicted by the knife-tip intrusion excellently. In conclusion, this study provided methods of researching multifunctional individual soft-stabbing protection equipment.

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通过相位调节和基质纤维强化实现抗穿刺的自愈合聚氨酯/织物复合材料

为了解决具有高抗穿刺性和常温自愈合性的软质复合材料问题。通过深思熟虑的相调制，成功合成了一种室温自愈合热塑性聚氨酯（TPU）涂层，并创新性地将 TPU 与高性能芳纶织物复合制备了一种抗穿刺复合材料。自修复热塑性聚氨酯涂层通过分子间氢键（H 键）与芳纶纤维形成了牢固的基体-纤维界面。实验结果表明，复合材料的最大钉刺力和最大刀刺力分别是纯芳纶织物的 14.69 倍和 4.22 倍。在 30 °C 下放置 48 小时后，抗钉刺的自愈率高达 44.91%，抗刀刺的自愈率高达 66.98%。此外，这种自愈合热塑性聚氨酯涂层中多重动态键的室温动态对复合材料产生了积极影响，使其获得了出色的抗刀尖侵入损伤的能力。总之，本研究为研究多功能个体软刺防护装备提供了方法。

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.