| Titre : |
Study on the preparation and properties of novel transparent fire-resistive coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Hu Xiang, Auteur ; Guojian Wang, Auteur ; Yan Huang, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 717-726 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Composés inorganiques -- Synthèse
Essais de comportement au feu
Intumescence (chimie)
Polyéthylène glycol
PolyphosphateUn polyphosphate est un sel ou un ester d'oxyanions polymères formés à partir d'unités structurales tétraédriques PO 4 (phosphate) liées entre elles par le partage d'atomes d'oxygène. Les polyphosphates peuvent adopter des structures cycliques linéaires ou cycliques. En biologie, les esters polyphosphates ADP et ATP sont impliqués dans le stockage de l'énergie. Une variété de polyphosphates trouvent une application dans la séquestration des minéraux dans les eaux municipales, étant généralement présents à 1 à 5 ppm. GTP, CTP et UTP sont également des nucléotides importants dans la synthèse des protéines, la synthèse des lipides et le métabolisme des glucides, respectivement. Les polyphosphates sont également utilisés comme additifs alimentaires, marqués E452. (Wikipedia)
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A cyclic polyphosphate (CPPA) was synthesized by the reaction of polyphosphoric acid and pentaerythritol. Polyethylene glycol (PEG) was introduced in the structure of CPPA to improve its solubility in water and ethanol and five kinds of reactive type flame retardants (MCPPA) were obtained. 31P NMR, 1H NMR, FTIR, and TGA were used to characterize the composition and structure of CPPA and MCPPAs. The experimental results showed that there were 25% cyclic P–O–C structures in the product and MCPPA had better carbonization ability than CPPA. Five kinds of transparent fire-resistive coatings were prepared by the mixing of amino resin with five kinds of MCPPAs. The results of the fire protection test showed that both the fire-resistive time of coatings and intumescent factor of char layers decreased with the increase of molecular weight of PEG. The results of TGA and EDS showed that the carbonaceous residue of coatings and the antioxidation ability of char layers also decreased regularly with the increase of molecular weight of PEG. The SEM images demonstrated that the coating prepared with low molecular weight of PEG contributed to dense form structure and narrow distribution of cell size. Above all, the transparent fire-resistive coating prepared with PEG 200 had the best fire retardancy and stable thermal behavior. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of CPPA and MCPPA - Preparation of transparent coatings - Measurements and characterization - Fire protection test
- RESULTS AND DISCUSSION : Synthesis and characterization of CPPA and MCPPA - Solubility of CPPA and MCPPA - Thermal degradation behavior of CPPA and MCPPA - Characterization of the transparent fire-resistive coatings - Fire protection of the transparent fire-resistive coatings - Thermal degradation behavior of the transparent fire-resistive coatings - Element analysis of intumescent char layers - Morphological structure of intumescent char layers |
| DOI : |
10.1007/s11998-013-9475-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9475-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19805 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 5 (09/2013) . - p. 717-726
Aller sur edunet
Accueil
Ajouter le résultat dans votre panier Affiner la rechercheStudy on the preparation and properties of novel transparent fire-resistive coatings / Hu Xiang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
