| Titre : |
A review of effects of hyperbranched polymeric additive on properties of cured epoxy products |
| Type de document : |
texte imprimé |
| Auteurs : |
Vinayak Anant Bhanu, Auteur ; Sunil Narsingrao Garaje, Auteur ; Shashikant Sangameshwar Paymalle, Auteur ; Singubiru Machindra Khatake, Auteur ; Yogaraj Umesh Nabar, Auteur ; James Herbison, Auteur ; Christian Przybyla, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 55-69 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie -- Essais et réactifs
Epoxydes
Nanoparticules
Polymères ramifiés
Ressources renouvelables
Réticulants
Revêtements -- Additifs
Revêtements organiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
There has been continuous interest in developing epoxy-based products having superior properties. Hyperbranched polymer (HBP) is one of the valuable additives for making such materials. It is a unique additive in the sense it provides simultaneous improvement in many properties of wide range of epoxy products like composites, coatings, and adhesives. This paper reviews the recent literature on epoxy materials made using HBP additives. In addition, we have briefly discussed our recent work on the development of epoxy systems using two new am ino functional hyperbranched phenalkamine curing agents that use cardanol. As an additive, presence of reactive as well as nonreactive types of HBP in the epoxy have an impact that covers different aspects like improvement in various properties, morphology of cured products and influence on the kinetics of curing reaction. Nanofiller containing HBP in epoxy composites and coatings are found to provide excellent properties at lower nanofiller content than composites of micron sized conventional fillers in the absence of HBP. Such composites and some more ideas for future development are discussed in this review. |
| Note de contenu : |
- SYNTHESIS AND CLASSIFICATION OF HBP
- EPOXY SYSTEMS CONTAINING NONREACTIVE HBP : - Polyester and polyether HBP with hydroxyl or thiol end groups - Ester end group containing polyester polyols - Miscellaneous nonreactive HBP derivatives - ENC containing nonreactive HBP
- EPOXY SYSTEMS CONTAINING REACTIVE HBP : Epoxy functional reactive HBP - Epoxy functionalized HBP in ENC
- HBP CURING AGENTS CONTAINING EPOXY SYSTEMS : Amine functional reactive HBP - Hydroxyl, thiol, and acid functional reactive HBP - HBP ionic liquid hardeners - HBP curing agents in combination with nanofillers for ENC
- COMMENTS ON ROLES OF HBP IN EPOXY CURING AND CORRESPONDING
- Table 1 : Characteristics of different HBP backbones used in epoxy composites
- Table 2 : Effect of nonreactive HBP on epoxy composite on tangent Ô, Impact strength and Tg
- Table 3 : Advantages of using HBP modified nanofiller containing composites
- Table 4 : Composite properties for various systems containing epoxy functional HBP
- Table 5 : Effect of amine and other curing agents modified HBP on Composite properties |
| En ligne : |
https://drive.google.com/file/d/1_yB2q7zt6xg1wXG-7LLePOogz2Q1t9io/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36307 |
in PAINTINDIA > Vol. LXXI, N° 7 (07/2021) . - p. 55-69
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