A facile strategy to fabricate an intumescent fire-retardant coating with improved fire resistance and water tolerance for steel structure / Siqi Huo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1401–1411 Titre : A facile strategy to fabricate an intumescent fire-retardant coating with improved fire resistance and water tolerance for steel structure Type de document : texte imprimé Auteurs : Siqi Huo, Auteur ; Chen Wang, Auteur ; Qinghua Hu, Auteur ; Shi Liu, Auteur ; Qi Zhang, Auteur ; Zhitian Liu, Auteur Année de publication : 2020 Article en page(s) : p. 1401–1411 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Borate de zinc Caractérisation Combustion Encapsulation Ignifugeants Composé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Intumescence (chimie) Morphologie (matériaux) Polyphosphate d'ammonium Résistance à l'humidité:Résistance à l'eau Revêtements -- Propriétés thermiques Revêtements protecteurs Stabilité thermique Index. décimale : 667.9 Revêtements et enduits Résumé : An intumescent fire-retardant coating (IFRC) with improved fire resistance and water tolerance was prepared in this work, resulting from the introduction of microcapsuled ammonium polyphosphate (MFAPP) and zinc borate (MFBZ). The as-prepared coating exhibited great fire resistance and smoke suppression. In the cone calorimetry test, adding only 6 wt% MFBZ dramatically reduced the peak heat release rate, total heat release, and total smoke release by ~ 23.4%, ~ 54.7%, and ~ 81.1%, respectively. In addition, the water resistance and thermal stability of the coatings were also characterized. The char yield of IFRC noticeably increased to 41.7%, indicating good high-temperature stability. Besides, the IFRC showed a water contact angle of 90.1° and maintained good structure and fire resistance after being soaked by water, indicating great water resistance. The enhanced performance portfolio was mainly due to the synergistic effects of ammonium polyphosphate, pentaerythritol, melamine, and zinc borate, and the hydrophobicity of melamine–formaldehyde resin (MF). This work offers an effective approach for the preparation of waterborne intumescent fire-retardant coatings with great fire resistance and water tolerance. Note de contenu : - EXPERIMENTAL : Materials - Sample preparation - Characterization - RESULTS AND DISCUSSION : Characterization of MFBZ - Thermal properties of coatings - Fire resistance and combustion behaviors of coatings - Char morphology - Water resistance of coatings DOI : https://doi.org/10.1007/s11998-020-00360-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00360-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34582 [article]

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Preparation of organosilicone modified palm oil fatliquor / Chen Wang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 5 (05/2011)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 5 (05/2011) . - p. 161-169 Titre : Preparation of organosilicone modified palm oil fatliquor Type de document : texte imprimé Auteurs : Chen Wang, Auteur ; Shengyu Feng, Auteur ; Jun Wu, Auteur Année de publication : 2011 Article en page(s) : p. 161-169 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Huile de palme et constituants Organosilicones Produits de nourriture du cuir Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Fatliquoring is an important process in leather manufacture and these fatliquors are mainly chemical modification products of animal and vegetable oils. Palm oil, owing to its main characteristics and fatty acid composition is suitable as a raw material for fatliquor preparation. And organosilicone is increasingly used for leather production due to its excellent properties. In this paper, the organosilicone modified palm oil fatliquor was synthesized by amidation with diethanolamine, grafting with hydroxyl-terminated organosilicone, esterification with maleic anhydride and sulfiting with sodium bisulfite, in turn. The influence of the mass percentage of diethanolamine, hydroxyl silicone, maleic anhydride and sodium bisulfte on the emulsion stability and fatliquoring properties were explored; the reaction temperature and time were also studied. The FT-IR spectra analyses showed that the organosilicone chain segment was incorporated into the fatliquor molecule. The route of synthesis and the best conditions of preparing organosilicone modified palm oil fatliquor were determined. The result of applied experiments showed that this new type of fatliquor had excellent emulsion and dispersion characteristics, and the resultant leather was flexible and full. Note de contenu : - EXPERIMENTAL : Methods and procedures (Materials - Preparation of silicone modified fatliquor - Fourier Transform Infrared spectra - Fatliquoring processes) - RESULTS AND DISCUSSION : Anidation reaction of palm oil with diethanolamine - graft organosilicone onto amidation resultant - Estherificication with maleic anhydride - Preparation of sodium sulphonated ester - Application test of fatliquoring En ligne : https://drive.google.com/file/d/1b225w9zTrUSo2VMRuCd0UVSNMrmulmJp/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11590 [article]

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Rapid elastic test method for PTT/PET self-crimping filament yarns / Zhuli Yang in CHEMICAL FIBERS INTERNATIONAL, Vol. 66, N° 3 (10/2016)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 66, N° 3 (10/2016) . - p. 144-146 Titre : Rapid elastic test method for PTT/PET self-crimping filament yarns Type de document : texte imprimé Auteurs : Zhuli Yang, Auteur ; Chen Wang, Auteur ; Fumei Wang, Auteur ; Tiansheng Zhou, Auteur Année de publication : 2016 Article en page(s) : p. 144-146 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 677.4 Textiles artificiels Résumé : The elasticity of PTT/PET self-crimping filament yarns is currently evaluated through the elasticity of fabrics, which means a lot of work and expenditure. In order to develop a new method in industrial and commercial field, skeins made of different PTT/PET self-crimping filament yarns were heat treated and stretched in this study. Several methods were selected to calculate the elastic extension rate of skeins. Compared with the elasticity of single filament yarns and fabrics measured under mature process, a rapid elastic detection method was determined. Note de contenu : - APPROACH : Materials - Skein preparation - Heat treatment - Elasticity measurement - Start points - End points - Elastic points - RESULTS AND DISCUSSION : Screening start point - Screening end point - Experiment number - Verification method En ligne : https://drive.google.com/file/d/1crPQDSUceYsqceBh7EOhaCyuY60MB5ig/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27311 [article]

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Synthesis and emulsification properties of organosilicone modified sodium sulfonate of alkanolamide succinic acid monoester with palm oil / Chen Wang in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 5 (09-10/2012)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 5 (09-10/2012) . - p. 398-403 Titre : Synthesis and emulsification properties of organosilicone modified sodium sulfonate of alkanolamide succinic acid monoester with palm oil Type de document : texte imprimé Auteurs : Chen Wang, Auteur ; Tian duo Li, Auteur ; Sheng yu Feng, Auteur Année de publication : 2012 Article en page(s) : p. 398-403 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emulsifiants Huile de palme et constituants Organosilicones Produits de nourriture du cuir Surfactants Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Surfactants are widely used in the leather-making processes. The structure and property of surfactant obviously affect the quality and performance of leather. In this paper, a novel anionic surfactant, organosilicone modified sodium sulfonate of alkanolamide succinic acid monoester with palm oil was synthesized. Firstly palm oil was amidated with diethanolamine, then grafted with hydroxy-terminated silicone oil, esterified with maleic anhydride and sulphited with sodium bisulfite in sequence. The emulsification properties and fatliquoring performance of the prepared surfactant were tested. The influence of the mass percentage of reactants, the reaction temperature and time on the surface tension, the emulsifying activity and stability of the prepared surfactant were investigated. The FT-IR spectra analysis showed that under optimised conditions the novel surfactant was obtained. The fatliquoring application experiments showed that the novel surfactant is an excellent leather fatliquor. Note de contenu : - EXPERIMENTAL : Materials - Instruments - Preparation of hydroxyl-terminated organosilicone modified sodium sulfonate of alkanolamide succinic acid monoester - Surfactant activity tests - Fatliquoring application test - RESULTS AND DISCUSSION : The influence of amidation reaction conditions on emulsification properties - The influence of the grafting reaction conditions on emulsification properties - The influence of the esterification conditions on emulsification properties of obtained surfactant - The influence of the sulfonation conditions on emulsification properties - Fatliquoring properties of the organosilicone modified sodium sulfonate of alkanolamide succinic acid monoester DOI : 10.3139/113.110209 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15876 [article]

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