Nanotechnology in Aerospace and Structural Mechanics最新文献

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Simulation and Modeling of Nanotechnology Aircraft Using MATLAB 纳米技术飞行器的MATLAB仿真与建模
Nanotechnology in Aerospace and Structural Mechanics Pub Date : 1900-01-01 DOI: 10.4018/978-1-5225-7921-2.CH008
I. Kumar
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引用次数: 0
Cryogenic Treatment of Polymer/MWCNT Nano-Composites for Mechanical and Tribological Applications 低温处理聚合物/MWCNT纳米复合材料的机械和摩擦学应用
Nanotechnology in Aerospace and Structural Mechanics Pub Date : 1900-01-01 DOI: 10.4018/978-1-5225-7921-2.CH004
Swamini Chopra, S. Sreya, Rohit V. Babhulkar, Swaksha P. Halde, Kavita A. Deshmukh, D. Peshwe
{"title":"Cryogenic Treatment of Polymer/MWCNT Nano-Composites for Mechanical and Tribological Applications","authors":"Swamini Chopra, S. Sreya, Rohit V. Babhulkar, Swaksha P. Halde, Kavita A. Deshmukh, D. Peshwe","doi":"10.4018/978-1-5225-7921-2.CH004","DOIUrl":"https://doi.org/10.4018/978-1-5225-7921-2.CH004","url":null,"abstract":"The cryogenic treatment of material has been known to motivate structural stability by rearranging its crystallographic structure in metals and by promoting intermolecular as well as intramolecular rearrangements in polymers. Additionally, in case of polymers reinforced with micro fillers, the structural changes brought about by cryogenic treatment are still largely governed by the polymer matrix itself. Thus, when investigated for their mechanical and tribological properties, the response of polymer/MWCNT nano-composites after cryogenic treatment was found to be depending on the cryo-structural modifications in the polymer matrix, followed by the MWCNT interaction to some extent. The enhancement in the mechanical properties of the polymer/MWCNT nano-composites is attributed to the increasing % crystallinity, changes in crystal structure, conversion of less stable phases into more stable phases, change in the nature of bonding and strengthening of interphase between polymer and MWCNT. Thus, for the cryogenic treatment temperature of -185 °C, the optimum soaking period for PA and PA/MWCNT nano-composite was 24 hrs, whereas for PBT and PBT/MWCNT nano-composite it was 12 hrs and 16 hrs, respectively. This agrees well with the popular claim that each polymer has a specific functional group and/or structural characteristic that readily responds to the cryogenic treatments conditions (irrespective of the filler type, content and/or interaction), thereby, modifying the structure and giving superior properties, which makes cryogenic treatment a material specific process.","PeriodicalId":153670,"journal":{"name":"Nanotechnology in Aerospace and Structural Mechanics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121689364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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