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Camille Piovesan Anne-Laurence Dupont Isabelle Fabre-Francke Odile Fichet Bertrand Lavédrine Hervé Chéradame 《Cellulose (London, England)》2014,21(1):705-715
Two di-alkoxysilanes, with (AMDES, aminopropylmethyldiethoxysilane) or without (DMDES, dimethyldiethoxysilane) an amine function, and a tri-alkoxy aminosilane (APTES, aminopropyltriethoxysilane) as well as their mixtures were introduced in paper as fiber strengthening agents. The polymerization and copolymerization of these polysiloxanes in the paper were investigated. In all the cases where APTES was present, the formation of networks was established by measuring the soluble fraction amount extracted from the treated papers. A slight decrease of the opacity of the paper sheets when AMDES was part of the treatment was noted. The presence of APTES reduced this opacity loss. The study of the physicochemical properties of the treated paper (mechanical strength and alkalinity) demonstrated that, besides the required deacidification feature, the different treatments allowed an efficient strengthening of the cellulose fibers to various extents. Contact angle measurements indicated a decrease of the hydrophilic character of papers treated with the mixture APTES/AMDES and the occurrence of a hydrophobic character of the papers treated with APTES alone. These results were consistently obtained for both spray and immersion treatment processes. 相似文献
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Leblond Sylvain Fichet Pascal Laumonier Rmi Billon Sophie Sardini Paul Colas Kimberly 《Journal of Radioanalytical and Nuclear Chemistry》2022,331(2):1075-1089
Journal of Radioanalytical and Nuclear Chemistry - A new method has been developed to image surface contamination on-site by short range radiation emitters (such as alpha or beta particle... 相似文献
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Baudat Emilie Gautier Céline Fichet Pascal Destrel Eric Colin Christèle Giuliani Margaux Lambrot Gabriel 《Journal of Radioanalytical and Nuclear Chemistry》2021,328(2):637-650
Journal of Radioanalytical and Nuclear Chemistry - 90Sr radiochemical method using nitric acid for Sr and Ca separation was optimized using design of experiments methodology. Nitric acid... 相似文献
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P. Fichet A. Toussaint J.-F. Wagner 《Applied Physics A: Materials Science & Processing》1999,69(7):S591-S592
Laser-induced breakdown spectroscopy (LIBS) was applied to detect elements in different liquids (water and oil). Spectra of plasmas generated by focusing the second harmonic 5=532 nm of a pulsed Nd:YAG laser on the liquids' surfaces at atmospheric pressure were recorded. Calibration curves for chromium in water and in oil were obtained, and detection limits were deduced. 相似文献
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Billon Sophie Sardini Paul Leblond Sylvain Fichet Pascal 《Journal of Radioanalytical and Nuclear Chemistry》2019,320(3):699-709
Journal of Radioanalytical and Nuclear Chemistry - A large set of key parameters is provided to use in decommissioning operations, the conversion method fully described in the companion paper... 相似文献
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Comparisons between LIBS and ICP/OES 总被引:3,自引:0,他引:3
In the framework of the development of new techniques, the ability of laser-induced breakdown spectroscopy (LIBS) to analyse
remotely complex aqueous solutions was investigated. The jet configuration with a collimated gas stream was chosen because
it appeared to be the most promising method for the LIBS probe, particularly in terms of sensitivity and repeatability. For
emission collection, the echelle spectrometer offers a simultaneously recorded wavelength range from the UV to the near IR
and is interesting for multielemental analysis for LIBS and also for inductively coupled plasma (ICP) optical emission spectroscopy
(OES). The importance of parameters influencing the quantitative results of LIBS such as multispecies analysis, sheath gas,
use of an internal standard and temporal parameters for analysis is described. LIBS quantitative data have been directly compared
with results from the more standard ICP/OES technique. 相似文献
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Leskinen Anumaija Gautier Celine Räty Antti Kekki Tommi Laporte Elodie Giuliani Margaux Bubendorff Jacques Laurila Julia Kurhela Kristian Fichet Pascal Salminen-Paatero Susanna 《Journal of Radioanalytical and Nuclear Chemistry》2021,329(2):945-958
Journal of Radioanalytical and Nuclear Chemistry - This paper reports the results obtained in a Nordic Nuclear Safety Research project during the second intercomparison exercise for the... 相似文献
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