Decolorisation of H-acid manufacturing process wastewater by anion exchange resin / Zhen Yuan in COLORATION TECHNOLOGY, Vol. 123, N° 5 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 5 (2007) . - p. 323-328 Titre : Decolorisation of H-acid manufacturing process wastewater by anion exchange resin Type de document : texte imprimé Auteurs : Zhen Yuan, Auteur ; Ping Yu, Auteur ; Yunbai Luo, Auteur Année de publication : 2007 Article en page(s) : p. 323-328 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Anion exchange resin was employed to examine the feasibility to treat the H-acid manufacturing wastewater by column experiment. Besides the acidity recovery, the decoloring efficiency and chemical oxygen demand (COD) removal efficiency of the anion exchange resin was investigated in the experiments. The results revealed that the anion exchange resin was able to remove colourful pollutants and degrade a part of COD effectively, and at the same time reserve acidity in the wastewater solution. The resin regenerated by a 10% NaCl aqueous solution had the same ability to discolour and remove the COD from the wastewater as the new resin had. The resin regenerated by 3% w/w NaCl aqueous solution, which was the same concentration as seawater, also had, to some extent, the same effect on decolorisation and the removal of COD; however, its colour and COD removal performance was not as efficient as the resin regenerated by 10% w/w NaCl and the new resin. H-acid (0.25%) was also successfully recovered from the regenerating solutions. DOI : 10.1111/j.1478-4408.2007.00103.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00103.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3226 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
009868	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Preparation of dendritic–linear polyether-modified silica sol and its application in coatings / Ping Yu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 6 (11/2016)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 6 (11/2016) . - p. 963-971 Titre : Preparation of dendritic–linear polyether-modified silica sol and its application in coatings Type de document : texte imprimé Auteurs : Ping Yu, Auteur ; Xingxing Zhu, Auteur ; Jidong Gao, Auteur ; Shengying Wu, Auteur ; Lei Tang, Auteur ; Shaobo Xiong, Auteur ; Limin Wang, Auteur ; Gang Zou, Auteur Année de publication : 2016 Article en page(s) : p. 963-971 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Morphologie (matériaux) Polyéthers Polymères dendritiques Résistance aux taches Revêtements -- Additifs:Peinture -- Additifs Silice La silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux. La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...). Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale. Index. décimale : 667.9 Revêtements et enduits Résumé : Dendritic–linear polyether-modified silica sol (DLPS) was synthesized using diethylenetriamine, methyl acrylate, epoxy-terminated polyether, triethoxysilane, and silica sol in five steps. The prepared sol was stable and transparent. DLPS was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and particle size distribution analysis. Subsequently, DLPS was examined as a stain-resistant additive in (paint) coatings. The surface of the sample coatings with and without DLPS additive was examined by scanning electron microscopy, energy-dispersive spectrometry analysis, and contact angle analysis. The results showed that the stain-resistant additive appeared on the surface of the coating, which made the surface more compact and hydrophilic. The performance of the stain-resistant additive was examined in commercial outdoor emulsion coatings (WB200). The result showed that the presence of the stain-resistant additive could enhance the stain resistance performance of paint. Furthermore, the stain resistance performance improved with increasing amounts of additive. Specifically, the stain resistance performance of paint improved by 40.63% in the presence of 6 wt% DLPS. Therefore, the current findings demonstrate the importance of DLPS in advancing progress and application in the paint coating industry. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of dendritic–linear polyether-modified silica sol (DLPS) - Preparation of sample boards and stain resistance test (Preparation of sample boards - Stain resistance test - Characterization) - RESULTS AND DISCUSSION : FTIR studies - TGA studies - Particle size distribution analysis - Surface wettability - Stain resistance studies - Surface morphology analysis - Chemical composition analysis DOI : 10.1007/s11998-016-9807-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9807-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27243 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
18514	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)