Back to Search
Start Over
A methodological approach for monitoring the curing process of fairing compounds based on epoxy resins
- Source :
- Progress in Organic Coatings. 123:20-26
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Epoxy resins, heavily loaded with fillers, are used as fairing compounds in coating systems to fill superficial imperfections and protect the hull of yachts and ships; they are complex composite materials whose final performance can be heavily affected by the conditions of application. In this paper the curing process of an innovative formulation was studied in function of the temperature and humidity, in order to evaluate how these environmental parameters influence the reaction evolution and gain further insight into the reaction mechanism. The study of the curing process was carried out by thermogravimetric analysis, differential calorimetric analysis and FT-IR spectroscopy. From the thermal analysis the obtained crosslink degree ranged between 92 and 99%, at 10 °C and 25 °C respectively. The samples cured at 25 °C reached the maximum curing degree in one week independently from the humidity. The samples cured at lower temperature (10 °C), even after two weeks, did not reach the complete crosslinking. On the other side, it was evident that the humidity did not influence the curing at 25 °C, while it had a slight effect at lower temperature (10 °C). Results from FTIR spectroscopy at 25 °C evidenced changes in the bands characterizing the two components of the resin during the curing reaction, in particular the disappearance of the oxirane ring band.
- Subjects :
- Reaction mechanism
Thermogravimetric analysis
Materials science
General Chemical Engineering
Organic Chemistry
Humidity
02 engineering and technology
Epoxy
engineering.material
010402 general chemistry
021001 nanoscience & nanotechnology
Epoxy resins Fillers Curing Thermal analysis FTIR
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Coating
visual_art
Materials Chemistry
visual_art.visual_art_medium
engineering
Composite material
Fourier transform infrared spectroscopy
0210 nano-technology
Thermal analysis
Curing (chemistry)
Subjects
Details
- ISSN :
- 03009440
- Volume :
- 123
- Database :
- OpenAIRE
- Journal :
- Progress in Organic Coatings
- Accession number :
- edsair.doi.dedup.....265af6ea9bcdd817e787ac6af5e65a2f