Self-Healing and Reprocessable Biobased Non-Isocyanate Polyurethane Elastomer with Dual Dynamic Covalent Adaptive Network for Flexible Strain Sensor DOI

Xingyu Mou,

Zhipeng Yang,

Xuejun Lai

и другие.

Опубликована: Янв. 1, 2024

Owing to the nontoxicity of monomers, non-isocyanate polyurethane elastomers have attracted considerable attention, yet synthesis and functionalization are still challenging. Herein, self-healing reprocessable biobased (NIPU) with dual dynamic covalent adaptive network (DDCAN) by disulfide bonds imine were synthesized as substrate for construction flexible strain sensor MXene conductive substance. The tensile strength elongation at break NIPU elastomer 3.22 MPa 234%, respectively. Thanks formation DDCAN, showed high healing efficiency 97.5% after room temperature 24 h. Interestingly, possessed superior reprocessing capability three cycles reached 136.1% original one, which was attributed increase crosslinking points caused topological rearrangement. In addition, elastomer-based exhibited fast response (response time =60 ms) excellent repeatability (1000 bending-releasing cycles) successfully applied human motion detection speech recognition. findings in this work conceivably stand out a new methodology preparation functional elastomers, will greatly promote sustainable development application electronics.

Язык: Английский

Self-Healing and Reprocessable Biobased Non-Isocyanate Polyurethane Elastomer with Dual Dynamic Covalent Adaptive Network for Flexible Strain Sensor DOI

Xingyu Mou,

Zhipeng Yang,

Xuejun Lai

и другие.

Опубликована: Янв. 1, 2024

Owing to the nontoxicity of monomers, non-isocyanate polyurethane elastomers have attracted considerable attention, yet synthesis and functionalization are still challenging. Herein, self-healing reprocessable biobased (NIPU) with dual dynamic covalent adaptive network (DDCAN) by disulfide bonds imine were synthesized as substrate for construction flexible strain sensor MXene conductive substance. The tensile strength elongation at break NIPU elastomer 3.22 MPa 234%, respectively. Thanks formation DDCAN, showed high healing efficiency 97.5% after room temperature 24 h. Interestingly, possessed superior reprocessing capability three cycles reached 136.1% original one, which was attributed increase crosslinking points caused topological rearrangement. In addition, elastomer-based exhibited fast response (response time =60 ms) excellent repeatability (1000 bending-releasing cycles) successfully applied human motion detection speech recognition. findings in this work conceivably stand out a new methodology preparation functional elastomers, will greatly promote sustainable development application electronics.

Язык: Английский

Процитировано

0