Strong, Reusable, and Self-Healing Lignin-Containing Polyurea Adhesives

被引：95

作者：

Liu, Weifeng ^{[1
]}

Fang, Chang ^{[1
]}

Chen, Fenting ^{[1
]}

Qiu, Xueqing ^{[2
]}

机构：

[1] South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Wushan Rd 381, Guangzhou 510640, Peoples R China

[2] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Waihuan Xi Rd 100, Guangzhou 510006, Peoples R China

来源：

CHEMSUSCHEM | 2020年 / 13卷 / 17期

基金：

中国国家自然科学基金;

关键词：

adhesives; lignin; polyetheramine; polyurea; self-healing; HIGH-PERFORMANCE; EXTRACTION; ELASTOMERS; RESIDUES; RESINS; DIELS;

D O I：

10.1002/cssc.202001602

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reusable, self-healable, removable, and strong bio-based polyurea adhesives were successfully synthesized via partially substituting polyetheramine with polyetheramine-grafted lignin and introducing a chain extender containing dynamic disulfide bonds. The polyetheramine-grafted lignin endowed the polyurea adhesives with significantly enhanced adhesion strength on either metal or wood substrates by introducing intensive hydrogen bonding interactions; the dynamic disulfide bonds played a key role in the excellent self-healing and reusable performance. The thermostability of polyurea adhesives was also improved by introducing lignin. This work provides a novel approach for the high-value utilization of low-cost lignin in recyclable adhesives with excellent comprehensive performance.

引用

页码：4691 / 4701

页数：11

共 45 条

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