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Investigation on a novel fly ash based calcium silicate filler / Shunxi Song in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16377–16384 Titre : Investigation on a novel fly ash based calcium silicate filler : Effect of particle size on paper properties Type de document : texte imprimé Auteurs : Shunxi Song, Auteur ; Meiyun Zhang, Auteur ; Zhibin He, Auteur Année de publication : 2013 Article en page(s) : pp. 16377–16384 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Fly  ash  Particle Résumé : Value-added utilization of fly ash has recently gained a strong interest. As a solid waste, fly ash can be used as a paper filler, and the recent innovation on the production of high-brightness fly ash products further facilitated such applications. This work reports the results on using the novel fly ash based fillers in the paper making process, with a focus on the effect of filler particle size. In comparison with ground calcium carbonate (GCC) commonly used as paper fillers, the original fly ash based calcium silicate filler (FACS) has a larger particle size (27.6 μm), a much lower true density (1.3–1.4 g/cm3), a higher specific surface area (121 m2/g), and a similar brightness (91% ISO). FACS exhibits porous, aggregated, and needle-like morphologies based on the results of scanning electron microscope image analysis. Ball milling decreased the particle size, broadened the particle size distribution, and improved the brightness while changing its morphology. The paper bulk increased dramatically when the original FACS was used due to its large particle size and narrow particle size distribution. With ball milling, the paper bulk and porosity decreased with decreasing particle size at the same filler content, while the tensile index increased. In addition, the ball milled FACS-filled paper had better light scattering coefficient and brightness than the GCC-filled paper. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3028813 [article] Investigation on a novel fly ash based calcium silicate filler : Effect of particle size on paper properties [texte imprimé] / Shunxi Song, Auteur ; Meiyun Zhang, Auteur ; Zhibin He, Auteur . - 2013 . - pp. 16377–16384. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16377–16384 Mots-clés : Fly  ash  Particle Résumé : Value-added utilization of fly ash has recently gained a strong interest. As a solid waste, fly ash can be used as a paper filler, and the recent innovation on the production of high-brightness fly ash products further facilitated such applications. This work reports the results on using the novel fly ash based fillers in the paper making process, with a focus on the effect of filler particle size. In comparison with ground calcium carbonate (GCC) commonly used as paper fillers, the original fly ash based calcium silicate filler (FACS) has a larger particle size (27.6 μm), a much lower true density (1.3–1.4 g/cm3), a higher specific surface area (121 m2/g), and a similar brightness (91% ISO). FACS exhibits porous, aggregated, and needle-like morphologies based on the results of scanning electron microscope image analysis. Ball milling decreased the particle size, broadened the particle size distribution, and improved the brightness while changing its morphology. The paper bulk increased dramatically when the original FACS was used due to its large particle size and narrow particle size distribution. With ball milling, the paper bulk and porosity decreased with decreasing particle size at the same filler content, while the tensile index increased. In addition, the ball milled FACS-filled paper had better light scattering coefficient and brightness than the GCC-filled paper. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3028813