Flexural behavior of nanoparticle filled fiber reinforced polymer nanocomposite is very significant to the engineering applications. The halloysite nanotubes (HNTs) were effectively incorporated in epoxy resin and used to impregnate the unidirectional (UD) glass fiber. The flexural property was estimated by the three-point bend test as per ASTM standards, for samples containing varied loading of HNTs (0, 1, 2, 3 wt. %) in the nanocomposite. Differential scanning calorimetry (DSC) measurement was carried for room temperature and post cured samples. The effect of the addition of HNTs in shifting the glass transition temperature (Tg) of the nanocomposite was examined. Results show that maximum flexural strength and modulus values are obtained for the loading of 1 wt. % HNTs in the nanocomposite. Additionally, at this optimum loading, the Tg witnessed a notable improvement. DSC measurement of post cured samples revealed a 10.8% improvement in Tg at 1 wt. % HNT addition compared to its counter sample cured at room temperature. Scanning electron microscopy reveals a brittle failure for all the samples.
{"title":"Flexural behavior of nanoclay filled glass fiber/epoxy polymer nanocomposites","authors":"Mohammed Sohail Bakshi, S. Kattimani","doi":"10.1063/5.0004157","DOIUrl":"https://doi.org/10.1063/5.0004157","url":null,"abstract":"Flexural behavior of nanoparticle filled fiber reinforced polymer nanocomposite is very significant to the engineering applications. The halloysite nanotubes (HNTs) were effectively incorporated in epoxy resin and used to impregnate the unidirectional (UD) glass fiber. The flexural property was estimated by the three-point bend test as per ASTM standards, for samples containing varied loading of HNTs (0, 1, 2, 3 wt. %) in the nanocomposite. Differential scanning calorimetry (DSC) measurement was carried for room temperature and post cured samples. The effect of the addition of HNTs in shifting the glass transition temperature (Tg) of the nanocomposite was examined. Results show that maximum flexural strength and modulus values are obtained for the loading of 1 wt. % HNTs in the nanocomposite. Additionally, at this optimum loading, the Tg witnessed a notable improvement. DSC measurement of post cured samples revealed a 10.8% improvement in Tg at 1 wt. % HNT addition compared to its counter sample cured at room temperature. Scanning electron microscopy reveals a brittle failure for all the samples.","PeriodicalId":56744,"journal":{"name":"柴油机设计与制造","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91169335","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}
Graphene oxide was prepared by oxidizing the graphite powder using the modified hummer method. Characterization studies are done to investigate physical and chemical properties. In this study, Scanning electron microscopy(SEM), Energy dispersive x-ray spectroscopy(EDX), Fourier transform infrared spectroscopy (FTIR), and X-Ray Diffraction(XRD) results are used.FTIR shows that graphite oxidized and formed oxygen atoms in the graphite layer and forms C=O,C-H,COOH Chemical bonding with graphene. The XRD results showed 2Ɵ of 11.300 with interlayer spacing of 0.771nmSEM images report ultra-thin layers. It is a promising method to synthesize GO for various applications like biomedical, electrical, and others.
{"title":"Synthesis and characterization of graphene oxide by modified hummer method","authors":"G. Kumar, Mallikarjun B. Jalageri","doi":"10.1063/5.0003864","DOIUrl":"https://doi.org/10.1063/5.0003864","url":null,"abstract":"Graphene oxide was prepared by oxidizing the graphite powder using the modified hummer method. Characterization studies are done to investigate physical and chemical properties. In this study, Scanning electron microscopy(SEM), Energy dispersive x-ray spectroscopy(EDX), Fourier transform infrared spectroscopy (FTIR), and X-Ray Diffraction(XRD) results are used.FTIR shows that graphite oxidized and formed oxygen atoms in the graphite layer and forms C=O,C-H,COOH Chemical bonding with graphene. The XRD results showed 2Ɵ of 11.300 with interlayer spacing of 0.771nmSEM images report ultra-thin layers. It is a promising method to synthesize GO for various applications like biomedical, electrical, and others.","PeriodicalId":56744,"journal":{"name":"柴油机设计与制造","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76233594","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：