{"title":"通过优化多维石墨碳填料实现高性能形状记忆聚合物 (SMP) 复合材料，以及利用 SMP 复合材料开发热-火-烟报警装置","authors":"Jeet Vishwakarma, Shubham Jaiswal, Chetna Dhand, Reuben J. Yeo, Hui Ru Tan, Rajeev Kumar, Pradip Kumar, Narendra Singh, Alka Mishra, Ajay Naik, Avanish K. Srivastava, Neeraj Dwivedi","doi":"10.1007/s42114-024-00978-4","DOIUrl":null,"url":null,"abstract":"<div><p>Understanding how sp<sup>2</sup> carbons of different dimensionality engineer the shape memory polymer is crucial for fundamental science and developing next-generation technologies. Further, with modernization, widespread adoption of rechargeable lithium-ion batteries, as well as hotter, drier weather attributed to climate change, has indirectly led to a globally increasing trend of fire-related accidents. To prevent such accidents from causing large-scale destruction and casualties, the rapid detection of a fire event is extremely important. In this work, we have developed mechanically robust shape memory polyurethane (PU) composites containing graphitic-carbon fillers that exhibit good thermo-responsiveness. Reinforcement of the PU matrix by three types of graphitic-carbon fillers, namely 3D graphite, 2D multilayer graphene, and 1D multiwall carbon nanotubes, yielded 36–47% and 20–29% faster shape recovery in hot-water and hot-air environments, respectively, with minimum shape recovery time of 14 s in former and 106 s in latter environments, thermal conductivity enhancement of 15 to 55%, enhanced shape-recovery ratio (up to 100%), increased shape recovery stress by ~ 34–96%, lowered coefficient of friction by 2–3 times, and improved wear resistance with respect to pristine PU. We found that a low concentration (~ 0.02–0.2 wt%) of all three types of fillers was adequate to enhance the thermal conductivity and shape recovery ratio while maintaining the composite’s stretchability, whereas higher-filler concentrations (~ 1.0–2.0 wt%) were required to substantially increase the shape recovery speed and improve the tribological properties. Finally, PU-graphite composites were integrated into two embodiments of fire alarm device prototypes that we developed and were found to work efficiently and reliably under various simulated environments and field tests.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-performance shape-memory-polymer (SMP) composites via optimization of multidimensional graphitic-carbon fillers and development of heat-fire-and-smoke alarm devices using SMP composites\",\"authors\":\"Jeet Vishwakarma, Shubham Jaiswal, Chetna Dhand, Reuben J. Yeo, Hui Ru Tan, Rajeev Kumar, Pradip Kumar, Narendra Singh, Alka Mishra, Ajay Naik, Avanish K. Srivastava, Neeraj Dwivedi\",\"doi\":\"10.1007/s42114-024-00978-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Understanding how sp<sup>2</sup> carbons of different dimensionality engineer the shape memory polymer is crucial for fundamental science and developing next-generation technologies. Further, with modernization, widespread adoption of rechargeable lithium-ion batteries, as well as hotter, drier weather attributed to climate change, has indirectly led to a globally increasing trend of fire-related accidents. To prevent such accidents from causing large-scale destruction and casualties, the rapid detection of a fire event is extremely important. In this work, we have developed mechanically robust shape memory polyurethane (PU) composites containing graphitic-carbon fillers that exhibit good thermo-responsiveness. Reinforcement of the PU matrix by three types of graphitic-carbon fillers, namely 3D graphite, 2D multilayer graphene, and 1D multiwall carbon nanotubes, yielded 36–47% and 20–29% faster shape recovery in hot-water and hot-air environments, respectively, with minimum shape recovery time of 14 s in former and 106 s in latter environments, thermal conductivity enhancement of 15 to 55%, enhanced shape-recovery ratio (up to 100%), increased shape recovery stress by ~ 34–96%, lowered coefficient of friction by 2–3 times, and improved wear resistance with respect to pristine PU. We found that a low concentration (~ 0.02–0.2 wt%) of all three types of fillers was adequate to enhance the thermal conductivity and shape recovery ratio while maintaining the composite’s stretchability, whereas higher-filler concentrations (~ 1.0–2.0 wt%) were required to substantially increase the shape recovery speed and improve the tribological properties. Finally, PU-graphite composites were integrated into two embodiments of fire alarm device prototypes that we developed and were found to work efficiently and reliably under various simulated environments and field tests.</p></div>\",\"PeriodicalId\":7220,\"journal\":{\"name\":\"Advanced Composites and Hybrid Materials\",\"volume\":\"7 6\",\"pages\":\"\"},\"PeriodicalIF\":23.2000,\"publicationDate\":\"2024-10-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Composites and Hybrid Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42114-024-00978-4\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-024-00978-4","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
High-performance shape-memory-polymer (SMP) composites via optimization of multidimensional graphitic-carbon fillers and development of heat-fire-and-smoke alarm devices using SMP composites
Understanding how sp2 carbons of different dimensionality engineer the shape memory polymer is crucial for fundamental science and developing next-generation technologies. Further, with modernization, widespread adoption of rechargeable lithium-ion batteries, as well as hotter, drier weather attributed to climate change, has indirectly led to a globally increasing trend of fire-related accidents. To prevent such accidents from causing large-scale destruction and casualties, the rapid detection of a fire event is extremely important. In this work, we have developed mechanically robust shape memory polyurethane (PU) composites containing graphitic-carbon fillers that exhibit good thermo-responsiveness. Reinforcement of the PU matrix by three types of graphitic-carbon fillers, namely 3D graphite, 2D multilayer graphene, and 1D multiwall carbon nanotubes, yielded 36–47% and 20–29% faster shape recovery in hot-water and hot-air environments, respectively, with minimum shape recovery time of 14 s in former and 106 s in latter environments, thermal conductivity enhancement of 15 to 55%, enhanced shape-recovery ratio (up to 100%), increased shape recovery stress by ~ 34–96%, lowered coefficient of friction by 2–3 times, and improved wear resistance with respect to pristine PU. We found that a low concentration (~ 0.02–0.2 wt%) of all three types of fillers was adequate to enhance the thermal conductivity and shape recovery ratio while maintaining the composite’s stretchability, whereas higher-filler concentrations (~ 1.0–2.0 wt%) were required to substantially increase the shape recovery speed and improve the tribological properties. Finally, PU-graphite composites were integrated into two embodiments of fire alarm device prototypes that we developed and were found to work efficiently and reliably under various simulated environments and field tests.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
