Thermal properties and curing kinetics of epoxy powder coatings containing graphene nanoplatelets

Thermal properties and curing kinetics of epoxy powder coatings containing graphene nanoplatelets

Graphene nanoplatelets (GNP) have excellent properties, such as high mechanical strength and good thermal conductivity, making them interesting nanofiller for their application in powder coatings. In this context, the aim of this study was to evaluate the thermal behavior and the curing kinetics of...

Full description

Saved in:
Bibliographic Details
Published in:The Korean journal of chemical engineering Vol. 38; no. 9; pp. 1946 - 1955
Main Authors: Vanzetto, Andrielen Braz, Agnol, Lucas Dall, Lavoratti, Alessandra, Marocco, Marcos Vinícius, de Lima, Gabriel Gonem, Beltrami, Lilian Vanessa Rossa, Zattera, Ademir José, Piazza, Diego
Format: Journal Article
Language:English
Published: New York Springer US 01-09-2021
Springer Nature B.V
한국화학공학회
Subjects:
Ball milling
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Curing
Dispersion
Epoxy resins
Graphene
Industrial Chemistry
Industrial Chemistry/Chemical Engineering
Kinetics
Materials Science
Morphology
Polymer
Powder coatings
Rapid prototyping
Stability analysis
Thermal conductivity
Thermal stability
Thermodynamic properties
화학공학
Graphene Nanoplatelets
Thermal Properties
Epoxy Powder Coatings
Curing Kinetics
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Graphene nanoplatelets (GNP) have excellent properties, such as high mechanical strength and good thermal conductivity, making them interesting nanofiller for their application in powder coatings. In this context, the aim of this study was to evaluate the thermal behavior and the curing kinetics of epoxy powder coatings containing GNP. The coatings were obtained by mixing in a ball mill followed by homogenization in molten state. The GNP were dispersed directly into the epoxy powder. The morphology, thermal stability and curing kinetics of the samples were evaluated. During the curing process, the GNP accelerated the onset of the reaction but ultimately caused steric impediment. From the results, the GNP incorporated to the solid epoxy resin for coatings behaved differently in each stage of the curing process. In general, while the direct dispersion of GNP in powder epoxy by dry mixing methods was not ideal, the thermal properties were improved, with GNP inducing a poor curing state where diffusion phenomena are predominant.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-021-0848-7