Lignin-based thermoplastic elastomer with rapid repairing function and preparation method thereof

The invention discloses a lignin-based thermoplastic elastomer, relates to the technical field of thermoplastic elastomers, and also provides a preparation method of the lignin-based thermoplastic elastomer. The lignin-based thermoplastic elastomer has the beneficial effects that the lignin-based thermoplastic elastomer is excellent in mechanical property and good in ductility, and has good biodegradability and environmental friendliness. The lignin-based elastomer can be quickly healed within one minute under the irradiation of near-infrared light, so that the lignin-based elastomer with the quick repairing performance can remarkably improve the utilization rate and the additional value of lignin and widen the application of lignin. 本发明公开一种木质素基热塑性弹性体，涉及热塑性弹性体技术领域，其结构式如下：本发明还提供上述木质素基热塑性弹性体的制备方法。本发明的有益效果在于：本发明中的木质素基热塑性弹性体力学性能优异，延展性良好，具有良好的生物降解和环境友好性。该木质素基弹性体，在近红外光照射下，可以在一分钟内快速愈合，这种具有快速修复性能的木质素基弹性能显著提高了木质素的利用率和附加值，拓宽木质素的应用。