Jian Li, Xiufang Zhu, Chao Fu, Ruifeng Ming, Minxian Shi, Wenhao Dong, Jiang Guo, Xingkui Guo, Duo Pan, Dalal A. Alshammari, Saad Melhi, Hamdy Khamees Thabet, Mufang Li
{"title":"不同成分的片状模塑料在酸溶液环境中的降解演变及其机理","authors":"Jian Li, Xiufang Zhu, Chao Fu, Ruifeng Ming, Minxian Shi, Wenhao Dong, Jiang Guo, Xingkui Guo, Duo Pan, Dalal A. Alshammari, Saad Melhi, Hamdy Khamees Thabet, Mufang Li","doi":"10.1007/s42114-024-00925-3","DOIUrl":null,"url":null,"abstract":"<div><p>In the present work, the sheet molding compound (SMC) composites with variable filler, resin, and fiber composition were prepared to investigate the effects of composition on the acid resistance of SMC composites. The water absorption was measured to estimate the influence of water on the mechanical properties and deterioration of SMC composites. Hardness and flexural properties tests were performed to investigate the evolution of degradation. The degradation mechanism was revealed by analyzing the change in molecule configuration, evaluating the thermal stability, and examining the fractured section. The chemical resistance and addition amount of the fillers had significant impacts on the acid resistance of SMC composites. The resin characteristics, molecule weight, free volume size, and polar group number had an important impact on the water absorption and acid resistance of SMC composites. Exposed to 25 °C and 20 wt% sulfuric acid solution for 28 days, the SMC composites exhibited a minor degradation of hollow glass microspheres (HGMs) and glass fibers (GFs). In this condition, the deterioration of mechanical properties was dominated by the resin matrix plasticization and decomposition, along with the interface degradation. It can be concluded that the original defects and weak interacted regions in the composites system initiated the degradation of SMC composites, whereas the microstructure and composition of SMC composites dominated the degradation progress.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 4","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Degradation evolution and mechanism of sheet molding compound with variable composition exposed to acid solution environment\",\"authors\":\"Jian Li, Xiufang Zhu, Chao Fu, Ruifeng Ming, Minxian Shi, Wenhao Dong, Jiang Guo, Xingkui Guo, Duo Pan, Dalal A. Alshammari, Saad Melhi, Hamdy Khamees Thabet, Mufang Li\",\"doi\":\"10.1007/s42114-024-00925-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In the present work, the sheet molding compound (SMC) composites with variable filler, resin, and fiber composition were prepared to investigate the effects of composition on the acid resistance of SMC composites. The water absorption was measured to estimate the influence of water on the mechanical properties and deterioration of SMC composites. Hardness and flexural properties tests were performed to investigate the evolution of degradation. The degradation mechanism was revealed by analyzing the change in molecule configuration, evaluating the thermal stability, and examining the fractured section. The chemical resistance and addition amount of the fillers had significant impacts on the acid resistance of SMC composites. The resin characteristics, molecule weight, free volume size, and polar group number had an important impact on the water absorption and acid resistance of SMC composites. Exposed to 25 °C and 20 wt% sulfuric acid solution for 28 days, the SMC composites exhibited a minor degradation of hollow glass microspheres (HGMs) and glass fibers (GFs). In this condition, the deterioration of mechanical properties was dominated by the resin matrix plasticization and decomposition, along with the interface degradation. 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Degradation evolution and mechanism of sheet molding compound with variable composition exposed to acid solution environment
In the present work, the sheet molding compound (SMC) composites with variable filler, resin, and fiber composition were prepared to investigate the effects of composition on the acid resistance of SMC composites. The water absorption was measured to estimate the influence of water on the mechanical properties and deterioration of SMC composites. Hardness and flexural properties tests were performed to investigate the evolution of degradation. The degradation mechanism was revealed by analyzing the change in molecule configuration, evaluating the thermal stability, and examining the fractured section. The chemical resistance and addition amount of the fillers had significant impacts on the acid resistance of SMC composites. The resin characteristics, molecule weight, free volume size, and polar group number had an important impact on the water absorption and acid resistance of SMC composites. Exposed to 25 °C and 20 wt% sulfuric acid solution for 28 days, the SMC composites exhibited a minor degradation of hollow glass microspheres (HGMs) and glass fibers (GFs). In this condition, the deterioration of mechanical properties was dominated by the resin matrix plasticization and decomposition, along with the interface degradation. It can be concluded that the original defects and weak interacted regions in the composites system initiated the degradation of SMC composites, whereas the microstructure and composition of SMC composites dominated the degradation progress.
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.
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