单硬脂酸甘油酯基聚氨酯自修复UV固化膜的制备与性能研究

朱增科; 汤晓曼; 黄绰林; 薛萌; 陈飞乐; 袁腾

doi:10.19554/j.cnki.1001-3563.2025.21.003

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包装工程（技术栏目） ›› 2025, Vol. 46 ›› Issue (21) : 22-30. DOI: 10.19554/j.cnki.1001-3563.2025.21.003

先进材料

单硬脂酸甘油酯基聚氨酯自修复UV固化膜的制备与性能研究

朱增科¹, 汤晓曼¹, 黄绰林¹, 薛萌², 陈飞乐¹, 袁腾^1*

作者信息 +

Preparation and Performance of Glycerol Monostearate-based Self-healing Polyurethane UV-cured Films

ZHU Zengke¹, TANG Xiaoman¹, HUANG Chuolin¹, XUE Meng², CHEN Feile¹, YUAN Teng^1*

Author information +

文章历史 +

摘要

目的制备具有自修复性能的生物基聚氨酯材料,维持材料功能性、延长其使用寿命并增强其可持续性。方法本研究以单硬脂酸甘油酯（GMS）多元醇和含动态亚胺键的二胺（T-NH）为原料成功制备一系列亚胺键含量不同的生物基聚氨酯UV固化膜,并对其进行热稳定性、自修复性能等测试,考察T-NH含量对其各项性能的影响,确定自修复效率最好的配比。结果拉伸强度随着T-NH的增加而提高,最高为0.84 MPa。生物基聚氨酯固化膜在室温下自修复率最高可达60%以上,当修复温度升高到50 ℃时,自修复效率提升最高可达90%以上,同一位置损伤的自修复最高可达4次。此外,固化膜具有较好的热稳定性,有较好的耐溶剂性和硬度。通过比较发现,PUA-B3的综合性能最好。结论本研究制备生物基UV固化膜在较低温度下有良好的自修复性能,具有高效环保的成型方式,在环保包装材料上有较大的应用潜力。

Abstract

The work aims to develop bio-based polyurethane materials with inherent self-healing properties, thereby maintain the functionality of materials, extending their lifespan and enhancing their sustainability. A series of bio-based polyurethane (PU) UV-cured films with different imine bond concentrations were successfully fabricated with glycerin monostearate (GMS) polyol and a diamine containing dynamic imine bonds (T-NH) as raw materials. By systematically varying the T-NH content, these films underwent comprehensive characterization, including assessments of their thermal stability, and their self-healing performance. The influence of T-NH content on these properties was meticulously investigated to identify the optimal formulation that yielded superior self-healing efficiency. The tensile strength of the films was observed to improve with an increase in T-NH content, reaching a maximum tensile strength of 0.84 MPa. Remarkably, the bio-based PU UV-cured films demonstrated a self-healing efficiency exceeding 60% at room temperature. Elevating the healing temperature to 50 °C further boosted this efficiency to over 90%. Impressively, the films were capable of undergoing self-healing at the same damaged site for up to four consecutive cycles. Additionally, the cured films exhibited favorable thermal stability, commendable solvent resistance, and appropriate hardness. Comparative analysis revealed that the PUA-B3 formulation presented the most balanced and superior overall performance. This study presents a bio-based UV-curable film with excellent low-temperature self-healing capabilities and an efficient, eco-friendly forming method, making it a highly promising candidate for sustainable packaging applications.

导出引用

朱增科, 汤晓曼, 黄绰林, 薛萌, 陈飞乐, 袁腾. 单硬脂酸甘油酯基聚氨酯自修复UV固化膜的制备与性能研究[J]. 包装工程. 2025, 46(21): 22-30 https://doi.org/10.19554/j.cnki.1001-3563.2025.21.003

ZHU Zengke, TANG Xiaoman, HUANG Chuolin, XUE Meng, CHEN Feile, YUAN Teng. Preparation and Performance of Glycerol Monostearate-based Self-healing Polyurethane UV-cured Films[J]. Packaging Engineering. 2025, 46(21): 22-30 https://doi.org/10.19554/j.cnki.1001-3563.2025.21.003

中图分类号： TB484

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