UV-resistant and light-controlled self-healing lignin-based waterborne polyurethane elastomers for photothermal welding

IF 14.2 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-09-10 DOI:10.1016/j.compositesb.2025.113001

Jinbang Han , Xiuzhong Zhu , Li Tian , Naishuo Yan , Jinjie Zang , Haitao Zhang , Lei Wang , Fengshan Zhang

{"title":"UV-resistant and light-controlled self-healing lignin-based waterborne polyurethane elastomers for photothermal welding","authors":"Jinbang Han , Xiuzhong Zhu , Li Tian , Naishuo Yan , Jinjie Zang , Haitao Zhang , Lei Wang , Fengshan Zhang","doi":"10.1016/j.compositesb.2025.113001","DOIUrl":null,"url":null,"abstract":"<div><div>Exploiting inexpensive, bio-derived lignin as a partial replacement for petroleum-based polyols offers a sustainable pathway to high-value lignin applications. However, prior studies have mainly focused on lignin's reinforcing effects in elastomers, neglecting its potential photothermal properties. Lignin-modified waterborne polyurethane elastomers (LWPUxAy) were synthesized, demonstrating UV resistance, enhanced mechanical robustness, rapid light-controlled self-healing, and photothermal weldability. LWPUxAy exhibited exceptional mechanical properties (51.9 MPa tensile strength, 768.8 % elongation) and a significantly enhanced photothermal conversion efficiency due to Ag<sup>+</sup> ligand bonding. Upon near-infrared (NIR) irradiation (1.25 W/cm<sup>2</sup>), LWPUxAy rapidly reached a surface temperature exceeding 160 °C within 35 s. The synthesized LWPUxAy demonstrated rapid, light-controlled self-healing and notable welding performance under near-infrared (NIR) irradiation (0.6 W/cm<sup>2</sup>, 5 min). Furthermore, LWPUx effectively blocked the entire UV spectrum within the 200–400 nm range. Bio-derived lignin was incorporated into light-responsive polyurethane elastomers, resulting in enhanced tensile strength and self-healing efficiency.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"308 ","pages":"Article 113001"},"PeriodicalIF":14.2000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part B: Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359836825009126","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Exploiting inexpensive, bio-derived lignin as a partial replacement for petroleum-based polyols offers a sustainable pathway to high-value lignin applications. However, prior studies have mainly focused on lignin's reinforcing effects in elastomers, neglecting its potential photothermal properties. Lignin-modified waterborne polyurethane elastomers (LWPUxAy) were synthesized, demonstrating UV resistance, enhanced mechanical robustness, rapid light-controlled self-healing, and photothermal weldability. LWPUxAy exhibited exceptional mechanical properties (51.9 MPa tensile strength, 768.8 % elongation) and a significantly enhanced photothermal conversion efficiency due to Ag⁺ ligand bonding. Upon near-infrared (NIR) irradiation (1.25 W/cm²), LWPUxAy rapidly reached a surface temperature exceeding 160 °C within 35 s. The synthesized LWPUxAy demonstrated rapid, light-controlled self-healing and notable welding performance under near-infrared (NIR) irradiation (0.6 W/cm², 5 min). Furthermore, LWPUx effectively blocked the entire UV spectrum within the 200–400 nm range. Bio-derived lignin was incorporated into light-responsive polyurethane elastomers, resulting in enhanced tensile strength and self-healing efficiency.

查看原文本刊更多论文

光热焊接用耐紫外线和光控制自愈木质素基水性聚氨酯弹性体

开发廉价的生物衍生木质素作为石油基多元醇的部分替代品，为高价值木质素的应用提供了一条可持续的途径。然而，以往的研究主要集中在木质素在弹性体中的增强作用，而忽略了其潜在的光热性质。合成了木质素改性水性聚氨酯弹性体（LWPUxAy），具有抗紫外线、增强的机械坚固性、快速光控自愈性和光热可焊性。LWPUxAy具有优异的力学性能（抗拉强度为51.9 MPa，伸长率为768.8%），并且由于Ag+配体结合而显著提高了光热转换效率。在近红外（NIR）照射下（1.25 W/cm2）， LWPUxAy在35 s内迅速达到超过160℃的表面温度。合成的LWPUxAy在近红外（NIR）照射（0.6 W/cm2, 5 min）下表现出快速、光控自愈和显著的焊接性能。此外，LWPUx有效地阻挡了200-400 nm范围内的整个紫外光谱。生物衍生木质素被加入到光响应聚氨酯弹性体中，从而增强了拉伸强度和自愈效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.