{"title":"超临界CO2浸渍纳米金刚石制备聚甲基丙烯酸甲酯薄膜及其光学性能","authors":"Jinhua Hu, Kunitoyo Osawa, Kaoru Tada, Kentaro Taki, Hirohisa Uchida, Kazuhiro Tamura","doi":"10.1016/j.supflu.2024.106506","DOIUrl":null,"url":null,"abstract":"<div><div>The supercritical CO<sub>2</sub> (scCO<sub>2</sub>) impregnation of nanodiamond (ND) in polymethylmethacrylate (PMMA) film was carried out over the pressure ranges of 12 MPa to 20 MPa and temperatures of 40 °C to 100 °C. The amount of ND impregnated in ND-PMMA composite film, and the refractive indices of the film were investigated. The refractive index increased linearly with the amount of ND accumulated in the film. The morphology on the surface and inside of the ND-PMMA composite film was characterized by SEM, TEM, AFM, and FT-IR analysis. The ND-PMMA film surface after scCO<sub>2</sub> treatment was smoother than before scCO<sub>2</sub> treatment, and the ND particles were embedded into the PMMA matrix and uniformly distributed near the interior of the film surface. The results of the retardation and birefringence of the ND-impregnated PMMA film after scCO<sub>2</sub> treatment indicated that ND impregnation of PMMA film enhances the optical anisotropy of the original PMMA film.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"218 ","pages":"Article 106506"},"PeriodicalIF":3.4000,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Supercritical CO2 impregnation of nanodiamonds into polymethylmethacrylate film and the film’s optical property\",\"authors\":\"Jinhua Hu, Kunitoyo Osawa, Kaoru Tada, Kentaro Taki, Hirohisa Uchida, Kazuhiro Tamura\",\"doi\":\"10.1016/j.supflu.2024.106506\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The supercritical CO<sub>2</sub> (scCO<sub>2</sub>) impregnation of nanodiamond (ND) in polymethylmethacrylate (PMMA) film was carried out over the pressure ranges of 12 MPa to 20 MPa and temperatures of 40 °C to 100 °C. The amount of ND impregnated in ND-PMMA composite film, and the refractive indices of the film were investigated. The refractive index increased linearly with the amount of ND accumulated in the film. The morphology on the surface and inside of the ND-PMMA composite film was characterized by SEM, TEM, AFM, and FT-IR analysis. The ND-PMMA film surface after scCO<sub>2</sub> treatment was smoother than before scCO<sub>2</sub> treatment, and the ND particles were embedded into the PMMA matrix and uniformly distributed near the interior of the film surface. The results of the retardation and birefringence of the ND-impregnated PMMA film after scCO<sub>2</sub> treatment indicated that ND impregnation of PMMA film enhances the optical anisotropy of the original PMMA film.</div></div>\",\"PeriodicalId\":17078,\"journal\":{\"name\":\"Journal of Supercritical Fluids\",\"volume\":\"218 \",\"pages\":\"Article 106506\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-12-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Supercritical Fluids\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0896844624003413\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Supercritical Fluids","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0896844624003413","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Supercritical CO2 impregnation of nanodiamonds into polymethylmethacrylate film and the film’s optical property
The supercritical CO2 (scCO2) impregnation of nanodiamond (ND) in polymethylmethacrylate (PMMA) film was carried out over the pressure ranges of 12 MPa to 20 MPa and temperatures of 40 °C to 100 °C. The amount of ND impregnated in ND-PMMA composite film, and the refractive indices of the film were investigated. The refractive index increased linearly with the amount of ND accumulated in the film. The morphology on the surface and inside of the ND-PMMA composite film was characterized by SEM, TEM, AFM, and FT-IR analysis. The ND-PMMA film surface after scCO2 treatment was smoother than before scCO2 treatment, and the ND particles were embedded into the PMMA matrix and uniformly distributed near the interior of the film surface. The results of the retardation and birefringence of the ND-impregnated PMMA film after scCO2 treatment indicated that ND impregnation of PMMA film enhances the optical anisotropy of the original PMMA film.
期刊介绍：
The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics.
Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.
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