Cure Kinetics Characterization of Epoxy Resin by Piecewise Model Fitting Method

AbstractEpoxy resin grafted with polyurethane was synthesized and characterized through a series of tests. The grafting reactive process between the pendant secondary hydroxyl groups on the side chains of epoxy resin and the isocyanate groups of pre-polyurethane were investigated by Fourier transform infrared spectroscopy. Thermal behavior of the grafted epoxy resin was investigated by thermogravimetric analysis within 40–500°C. The degradation of grafted epoxy resin involved two stages. Microstructures of the polyurethane section and grafted epoxy resin were observed by field emission scanning electron microscopy. Model fitting method was employed to calculate the thermal degradation model of grafted epoxy resin. In this paper, 15 typical kinetic mechanisms were introduced into the model fitting method, such as Coats-Redfern method and Achar-Brindley-Sharp-Wendworth method, to obtain the kinetic function of thermal degradation for grafted epoxy resin.

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Investigation of the cure kinetics of an epoxy resin by advanced isoconversional and model-fitting methods

10.1063/1.4942315 ◽

2016 ◽

Author(s):

A. Hosseinpour ◽

H. Nazockdast ◽

T. Behzad ◽

H. R. SalimiJazi

Keyword(s):

Epoxy Resin ◽

Model Fitting ◽

Cure Kinetics ◽

Kinetics Of

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Fique as a Sustainable Material and Thermal Insulation for Buildings: Study of Its Decomposition and Thermal Conductivity

Sustainability ◽

10.3390/su13137484 ◽

2021 ◽

Vol 13 (13) ◽

pp. 7484

Author(s):

Gabriel Fernando García Sánchez ◽

Rolando Enrique Guzmán López ◽

Roberto Alonso Gonzalez-Lezcano

Keyword(s):

Thermal Conductivity ◽

Thermal Decomposition ◽

Thermal Insulation ◽

Model Fitting ◽

Good Alternative ◽

Negative Effects ◽

Thermal Insulator ◽

Fitting Method ◽

Thermogravimetric Data ◽

Reduce Energy Consumption

Buildings consume a large amount of energy during all stages of their life cycle. One of the most efficient ways to reduce their consumption is to use thermal insulation materials; however, these generally have negative effects on the environment and human health. Bio-insulations are presented as a good alternative solution to this problem, thus motivating the study of the properties of natural or recycled materials that could reduce energy consumption in buildings. Fique is a very important crop in Colombia. In order to contribute to our knowledge of the properties of its fibers as a thermal insulator, the measurement of its thermal conductivity is reported herein, employing equipment designed according to the ASTM C 177 standard and a kinetic study of its thermal decomposition from thermogravimetric data through the Coats–Redfern model-fitting method.

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Fabrication and characterization of epoxy resin–barium titanate at G-band using waveguide technique

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1045/1/012012 ◽

2021 ◽

Vol 1045 (1) ◽

pp. 012012

Author(s):

Nurulfadzilah Hasan ◽

Nur Shahira Mat Hussain ◽

Nur Hazimah Syazana Abdul Razak ◽

Ahmad Syahiman Mohd Shah ◽

Mohamad Shaiful Abdul Karim

Keyword(s):

Barium Titanate ◽

Epoxy Resin ◽

Fabrication And Characterization

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Preparation and characterization of polydopamine/melamine microencapsulated red phosphorus and its flame retardance in epoxy resin

RSC Advances ◽

10.1039/d1ra03164c ◽

2021 ◽

Vol 11 (33) ◽

pp. 20391-20402

Author(s):

Chen Cheng ◽

Yanling Lu ◽

Weining Ma ◽

Shaojie Li ◽

Jun Yan ◽

...

Keyword(s):

Flame Retardant ◽

Epoxy Resin ◽

Shell Structure ◽

Composite Shell ◽

Intumescent Flame Retardant ◽

Smoke Suppression ◽

Flame Retardance ◽

Red Phosphorus ◽

Composite Shell Structure

Red phosphorus was coated by a polydopamine/melamine composite shell structure, which constituted an intumescent flame retardant with superior flame retardance and smoke suppression performance for epoxy resin.

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