[article]
| Titre : |
Comparison of bio-based epoxide-diamine coatings prepared with acyclic and cyclic aliphatic diamines |
| Type de document : |
texte imprimé |
| Auteurs : |
Ilknur Babahan-Bircan, Auteur ; Jomin Thomas, Auteur ; Mark D. Soucek, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 1435-1444 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Bisphénol A
DiamineUne diamine est un type de polyamine contenant exactement deux groupes amine. Les diamines sont principalement utilisées comme monomères pour synthétiser des polyamides, des polyimides et des polyurées. La principale diamine produite est le 1,6-diaminohexane, précurseur du Nylon 6-6, suivie de l'éthylènediamine1. L'hydrazine (H2NNH2) n'est en général pas considérée comme une diamine puisque ce n'est ni une amine (pas de carbone), ni une dibase.
Epoxy amine
Huile de tungL'huile de tung ou "huile de bois de Chin" ou encore "huile d'abrasin" est une huile de couleur jaune d'or, tirée des graines mûres d'un arbre de la famille des Aleurites (Aleurites moluccana - le noyer de bancoule - ou de Vernicia fordii selon les sources). Elle est employée notamment comme huile siccative en peinture ou comme traitement de surface du bois. (Wikipedia)
Réactions chimiques
Réticulants
Revêtements -- Propriétés mécaniques
Revêtements organiques
Thermogravimétrie
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
As replacements for bisphenol-A, new bio-based and reactive epoxy-amine coatings have been investigated in this study. Bio-based precursor, epoxy-functionalized tung oil (ETO) was synthesized using glycidyl methacrylate (GMA) and tung oil via a Diels–Alder reaction according to our previous work. The new ETO-diamine-cured systems were prepared with the equivalent molar ratio at room temperature. ETO was cured with acyclic aliphatic (Jeffamine D400) and cyclic aliphatic (Epicure 3300) amines, at four temperatures ranging from 25 to 150°C. The coatings were then compared in terms of their thermal and mechanical properties. The cured coatings were analyzed by IR, thermogravimetric analysis (TGA), and gel content tests. TGA analysis showed that the epoxide-diamine polymers demonstrated thermal stability up to 170°C. The mechanical properties of the films were investigated by pendulum hardness, pencil hardness, cross-hatch adhesion, pull-off adhesion, impact resistance, reverse resistance, and chemical resistance testing. While all the cured systems exhibited good pencil hardness, cross-hatch adhesion, impact resistance, and reverse resistance properties, the epoxide-acyclic diamine system demonstrated greater pendulum hardness and notable pull-off adhesion at 150°C. The research demonstrates the potential for greener and more reactive tung oil-based epoxide coatings with enhanced properties. |
| Note de contenu : |
- EXPERIMENTAL :
- Materials
- Instruments
- Synthesis of epoxy-functionalized tung oil (ETO)
- Preparation of epoxide-diamine coatings
- General coating properties
- RESULTS AND DISCUSSION :
- IR of epoxide-amine networks
- Thermogravimetric analysis (TGA) of epoxide-amine networks
- Gel content of the epoxide-amine networks
- General coating properties of epoxide-amine networks
- Table 1 : IR spectra of the epoxide-amine systems
- Table 2 : TGA results for epoxide-Jeffamine systems
- Table 3 : Gel content of coatings (%)
- Table 4 : General coating properties of the epoxide-amine systems |
| DOI : |
https://doi.org/10.1007/s11998-022-00756-1 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00756-1.pdf?pdf=button% [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39727 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 4 (07/2023) . - p. 1435-1444
[article]
|
Aller sur edunet
Accueil
Comparison of bio-based epoxide-diamine coatings prepared with acyclic and cyclic aliphatic diamines in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
