弹性体
材料科学
自愈
水下
激光器
硅酮
聚氨酯
聚合物
复合材料
二硒醚
纳米技术
光电子学
光学
医学
海洋学
替代医学
物理
硒
病理
冶金
地质学
作者
Peng Zhao,Muqing Cao,Cheng Liu,Yiheng Dai,Yizheng Tan,Shaobo Ji,Huaping Xu
标识
DOI:10.1021/acsami.2c05570
摘要
The development of underwater remote stimulus-responsive self-healing polymer materials for applications in inaccessible and urgent situations is very challenging because water can readily disturb traditional noncovalent bonds and absorb heat, UV light, IR light, and electromagnetic wave energy at the wave band of micrometers and millimeters. Herein, visible-light-responsive diselenide bonds are employed as the healing moieties to produce a water-enhanced and remote self-healing elastomer triggered by a blue laser, which possesses excellent underwater transmission capability. During healing, the strain at break reaches ∼200% in 5 min and its toughness almost fully recovers within 1 h, which is estimated to be the fastest reported to date for healing silicone elastomers with a healing efficiency above 90%. The remote underwater pipeline sealing is instantly accomplished with the diselenide-containing elastomers by a blue laser 3 m away, thereby providing a direction for future emergent healing applications.
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