Novel epoxy-silica hybrid coatings by using ethoxysilyl-modified hyperbranched poly(ethyleneimine) with improved scratch resistance
Visualitza/Obre
Polymer.pdf (1,498Mb) (Accés restringit)
Sol·licita una còpia a l'autor
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
10.1016/j.polymer.2014.08.021
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/24539
Tipus de documentArticle
Data publicació2014-09-26
EditorElsevier
Condicions d'accésAccés restringit per política de l'editorial
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
A new hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends has been synthesized and characterized and then used in epoxy formulations to generate new organic/inorganic hybrid materials. Formulations of different proportions of diglycidylether of bisphenol A and the prepared ethoxysilylated hyperbranched poly(ethyleneimine) were maintained in a thermostatized controlled humidity chamber to form the inorganic silica network by a sol-gel process and then the epoxy resin was cured at higher temperature using 1-methylimidazole as anionic initiator. Transparent hybrid materials were prepared and characterized by thermal tests and their fine morphology was observed by transmission electron microscopy. The formation of the silicon structure was confirmed by 29Si NMR studies. Thermal stability was evaluated by thermogravimetry. Improvement of the mechanical coating performance was confirmed by scratch measurement.
CitacióAcebo, C. [et al.]. Novel epoxy-silica hybrid coatings by using ethoxysilyl-modified hyperbranched poly(ethyleneimine) with improved scratch resistance. "Polymer", 26 Setembre 2014, vol. 55, núm. 20, p. 5028-5035.
ISSN0032-3861
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Polymer.pdf | 1,498Mb | Accés restringit |