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Preparation of starch−fatty acid modified clay and Its application in packaging papers / Shilin Cao in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5628-5633 Titre : Preparation of starch−fatty acid modified clay and Its application in packaging papers Type de document : texte imprimé Auteurs : Shilin Cao, Auteur ; Delong Song, Auteur ; Yulin Deng, Auteur Année de publication : 2011 Article en page(s) : pp. 5628-5633 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Packaging  Preparation Résumé : To improve the bondability between clay filler and lignocellulosic fiber, Kaolin clay particles were modified using a starch―fatty acid complex method. The coating efficiency of starch on clay particle surfaces was investigated by measuring the dissolved starch in the supernatant. The experimental results indicated that more than 98% of the applied starch was precipitated onto the surface of the filler, and the resulting starch—fatty acid-clay composites had relatively good resistance against moderate shear force. The morphology, particle size, and ξ potential of the starch modified filler were also determined with scanning electron microscopy, Malvern particle size analyzer, and Malvern Zetasizer, respectively. An aqueous slurry of linerboard pulp containing 5―5 wt % modified fillers was used for handsheet preparation, and the effects of the addition of modified filler on the paper properties were studied. At a dosage of 10% of the modified filler (based on filler), the retention of the filler was higher than 75%. The strength properties of paper with starch modified fillers were improved by approximately 15% when compared against those of paper with unmodified fillers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128687 [article] Preparation of starch−fatty acid modified clay and Its application in packaging papers [texte imprimé] / Shilin Cao, Auteur ; Delong Song, Auteur ; Yulin Deng, Auteur . - 2011 . - pp. 5628-5633. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5628-5633 Mots-clés : Packaging  Preparation Résumé : To improve the bondability between clay filler and lignocellulosic fiber, Kaolin clay particles were modified using a starch―fatty acid complex method. The coating efficiency of starch on clay particle surfaces was investigated by measuring the dissolved starch in the supernatant. The experimental results indicated that more than 98% of the applied starch was precipitated onto the surface of the filler, and the resulting starch—fatty acid-clay composites had relatively good resistance against moderate shear force. The morphology, particle size, and ξ potential of the starch modified filler were also determined with scanning electron microscopy, Malvern particle size analyzer, and Malvern Zetasizer, respectively. An aqueous slurry of linerboard pulp containing 5―5 wt % modified fillers was used for handsheet preparation, and the effects of the addition of modified filler on the paper properties were studied. At a dosage of 10% of the modified filler (based on filler), the retention of the filler was higher than 75%. The strength properties of paper with starch modified fillers were improved by approximately 15% when compared against those of paper with unmodified fillers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128687

Superhydrophobic surface fabricated from fatty acid-modified precipitated calcium carbonate / Zeshan Hu in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5625–5630 Titre : Superhydrophobic surface fabricated from fatty acid-modified precipitated calcium carbonate Type de document : texte imprimé Auteurs : Zeshan Hu, Auteur ; Yulin Deng, Auteur Année de publication : 2010 Article en page(s) : pp. 5625–5630 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Superhydrophobic  surface  Precipitated  calcium  carbonate  Fatty  acid  Precipitated  calcium  carbonate Résumé : A very low-cost and simple method for fabricating a superhydrophobic surface with commercially available precipitated calcium carbonate (PCC) and fatty acid is reported in this research article. PCC particles were chemically modified from hydrophilic to hydrophobic in water with fatty acid. The thin film formed by these hydrophobic PCCs shows superhydrophobic and self-cleaning properties. The contact angle hysteresis of modified PCC film was investigated. A sliding angle of 1.75° could be obtained with oleic acid-modified PCC film at an oleic acid concentration of 2.52 wt %. Comparing with oleic acid, the PCC film modified by stearic acid has a higher sliding angle (∼10°). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901944n [article] Superhydrophobic surface fabricated from fatty acid-modified precipitated calcium carbonate [texte imprimé] / Zeshan Hu, Auteur ; Yulin Deng, Auteur . - 2010 . - pp. 5625–5630. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5625–5630 Mots-clés : Superhydrophobic  surface  Precipitated  calcium  carbonate  Fatty  acid  Precipitated  calcium  carbonate Résumé : A very low-cost and simple method for fabricating a superhydrophobic surface with commercially available precipitated calcium carbonate (PCC) and fatty acid is reported in this research article. PCC particles were chemically modified from hydrophilic to hydrophobic in water with fatty acid. The thin film formed by these hydrophobic PCCs shows superhydrophobic and self-cleaning properties. The contact angle hysteresis of modified PCC film was investigated. A sliding angle of 1.75° could be obtained with oleic acid-modified PCC film at an oleic acid concentration of 2.52 wt %. Comparing with oleic acid, the PCC film modified by stearic acid has a higher sliding angle (∼10°). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901944n