With the rapid growth of numerous portable electronics, it is critical to develop high-performance, lightweight, and environmentally sustainable energy generation and power supply systems. The flexible nanogenerators, including piezoelectric nanogenerators (PENG) and triboelectric nanogenerators (TENG), are currently viable candidates for combination with personal devices and wireless sensors to achieve sustained energy for long-term working circumstances due to their great mechanical qualities, superior environmental adaptability, and outstanding energy-harvesting performance. Conductive materials for electrode as the critical component in nanogenerators, have been intensively investigated to optimize their performance and avoid high-cost and time-consuming manufacture processing. Recently, because of their low cost, large-scale production, simple synthesis procedures, and controlled electrical conductivity, conducting polymers (CPs) have been utilized in a wide range of scientific domains. CPs have also become increasingly significant in nanogenerators. In this review, we summarize the recent advances on CP-based PENG and TENG for biomechanical energy harvesting. A thorough overview of recent advancements and development of CP-based nanogenerators with various configurations are presented and prospects of scientific and technological challenges from performance to potential applications are discussed.

Without any catalyst, a novel way for the preparation of epoxy (EDSPs) and their composites by cross-link via dynamic BÀ OÀ C bonds was presented. The EDSPs with a glass transition temperature (T g ) of 194 °C were resistant to various solvents and can be green degraded in ethanol at room temperature. The dynamic properties of EDSPs also give the composites excellent recyclability, as the expensive carbon and glass fibers can be recovered intact from the composites under mild conditions at room temperature. Mechanical performance tests showed that the carbon fiber composites (CF/EDSPs) can achieve a flexural strength of 849 MPa and an interlaminar shear strength of 58 MPa. Even after recycling and re-preparation, 99 % of the original flexural strength and 93 % of the original interlaminar shear strength are still maintained. Scratch repair experiments shown that scratch self-healing can be achieved in only 10 s at 200 °C.

The adhesive is a kind of material with good adhesion properties which could join objects by adhesion of surfaces via forces of adhesion and cohesion. There are many kinds of adhesives. This paper mainly classifies them by curing method, from UV curing and heat curing to moisture curing and microwave curing, and describes the corresponding mechanisms. Furthermore, it covers the advantages and disadvantages, application ranges, and related chemical compounds of different curing ways for adhesives. This can broaden our understandings of different ways of adhesive curing. Besides, it could also help us choose the most appropriate curing method according to different requirements in daily life.

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