Healable and self-healing polyurethanes using dynamic chemistry

编号 020029604

推送时间 20210621

研究领域 林产化工 

年份 2021 

类型 期刊 

语种 英语

标题 Healable and self-healing polyurethanes using dynamic chemistry

来源期刊 Progress in Polymer Science

期 第296期

发表时间 20210115

关键词 Polyurethanes;  Self-healing;  Dynamic polymers;  Supramolecular polymers; 

摘要 Ever since the emergence of polymers, there has been interest in the production of “self-healing” materials. Over the last decade this dream has become closer to reality with the development of polymer networks containing dynamic bonds that are capable of recovering their physical properties following damage. In this review article, we provide a comprehensive summary of the work relating specifically to polyurethane materials, which constitute one of the most promising classes of polymers to be used in self-healing applications. After a brief introduction to the fundamental concepts behind healing in generic dynamic bond-containing polymer systems, the rheological characteristics necessary to heal cuts and scratches, and the rheological properties that make polyurethanes particularly interesting are described. Subsequently, we detail the range of dynamic bonds that can be incorporated into polyurethanes and how the nature of the dynamic bond influences the rheological properties of polyurethanes. Following this, we provide an overview of the characterization techniques that may be applied to measure the extent of healing. Finally, we discuss the commercial applications of such healable polyurethanes, highlighting the factors that stand in the way of their widespread use.

服务人员 尚玮姣

服务院士 宋湛谦

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